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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-209722


CALCULATION OF REGISTRATION FEE

       
 
Title of Securities to
be Registered

  Proposed Maximum
Aggregate Offering
Price

  Amount of
Registration
Fee(1)(2)

 

Common Stock

  $500,000,000   $62,250

 

(1)
Calculated pursuant to Rule 457(o) of the Securities Act of 1933, as amended (the "Securities Act"), based on the proposed maximum aggregate offering price, and Rule 457(r) under the Securities Act.

(2)
This "Calculation of Registration Fee" table shall be deemed to update the "Calculation of Registration Fee" table in the registrant's Registration Statement on Form S-3 (Registration No. 333-209722), as amended by Post-Effective Amendment No. 1 thereto on April 10, 2017, in accordance with Rules 456(b) and 457(r) under the Securities Act.

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PROSPECTUS SUPPLEMENT
(To prospectus dated April 7, 2017)

$500,000,000

LOGO

Common Stock



          We have entered into separate equity distribution agreements with each of Robert W. Baird & Co. Incorporated, BB&T Capital Markets, a division of BB&T Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, BMO Capital Markets Corp., BTIG, LLC, Cantor Fitzgerald & Co., Capital One Securities, Inc., Citigroup Global Markets Inc., Evercore Group L.L.C., Jefferies LLC, Morgan Stanley & Co. LLC, Raymond James & Associates, Inc., RBC Capital Markets, LLC, and Wells Fargo Securities, LLC (or certain of their respective affiliates), acting in their capacity as Sales Agents (as described below) or as Forward Sellers (as described below), relating to the offer and sale of shares of our common stock having an aggregate offering price of up to $500,000,000.

          We refer to these entities, when acting in their capacity as sales agents, individually as a "Sales Agent" and collectively as "Sales Agents." We refer to these entities, when acting as agents for Forward Purchasers (as defined below), individually as a "Forward Seller" and collectively as "Forward Sellers." Sales of shares of our common stock, if any, under this prospectus supplement and the accompanying prospectus may be made in negotiated transactions, which may include block trades, or transactions that are deemed to be "at the market" offerings as defined in Rule 415 under the Securities Act of 1933, as amended (the "Securities Act"), including sales made directly on the New York Stock Exchange ("NYSE") or sales made to or through a market maker other than on an exchange.

          The equity distribution agreements provide that, in addition to the issuance and sale of shares of our common stock by us through the Sales Agents, we also may enter into forward sale agreements under separate master forward sale agreements and related supplemental confirmations between us and a Forward Seller or its affiliate. We refer to these entities, when acting in this capacity, individually as a "Forward Purchaser" and collectively as "Forward Purchasers." In connection with each particular forward sale agreement, the relevant Forward Purchaser will borrow from third parties and, through the relevant Forward Seller, sell a number of shares of our common stock equal to the number of shares of our common stock underlying the particular forward sale agreement.

          We will not initially receive any proceeds from the sale of borrowed shares of our common stock by a Forward Seller. We expect to fully physically settle each particular forward sale agreement with the relevant Forward Purchaser on one or more dates specified by us on or prior to the maturity date of that particular forward sale agreement, in which case we will expect to receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward sale agreement multiplied by the relevant forward sale price. However, we may also elect to cash settle or net share settle a particular forward sale agreement, in which case we may not receive any proceeds from the issuance of shares, and we will instead receive or pay cash (in the case of cash settlement) or receive or deliver shares of our common stock (in the case of net share settlement).

          Each Sales Agent will receive from us a commission that will not exceed, but may be lower than, 2.0% of the gross sales price of all shares sold through it as Sales Agent under the applicable equity distribution agreement. In connection with each forward sale, we will pay the relevant Forward Seller, in the form of a reduced initial forward sale price under the related forward sale agreement with the related Forward Purchaser, commissions at a mutually agreed rate that shall not be more than 2.0% of the gross sales price of all borrowed shares of common stock sold by it as a Forward Seller. Each of the Sales Agents, the Forward Sellers and/or the Forward Purchasers may be deemed an "underwriter" within the meaning of the Securities Act, and the compensation paid to the Sales Agents or the Forward Sellers in the form of a reduced initial forward sale price under the related forward sale agreements with the related Forward Purchaser may be deemed to be underwriting discounts or commissions.

          We also may sell some or all of the shares of common stock to a Sales Agent as principal for its own account at a price agreed upon at the time of sale.

          To assist us in qualifying as a real estate investment trust ("REIT"), among other reasons, stockholders are generally restricted from owning more than 9.8% in value or in number of shares, whichever is more restrictive, of our outstanding shares of common stock or of our outstanding shares of capital stock. Our charter contains additional restrictions on the ownership and transfer of shares of our common stock.

          Our common stock is traded on the NYSE under the symbol "STAG." On November 10, 2017, the last reported sales price of our common stock on the NYSE was $28.30 per share.



          You should read carefully and consider "Risk Factors" included in our most recent Annual Report on Form 10-K and beginning on page S-4 of this prospectus supplement before investing in our common stock.



          Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.



Baird   BB&T Capital Markets   BofA Merrill Lynch   BMO Capital Markets   BTIG

 

Cantor Fitzgerald & Co.   Capital One Securities   Citigroup   Evercore ISI   Jefferies

 

Morgan Stanley   Raymond James   RBC Capital Markets   Wells Fargo Securities



   

The date of this prospectus supplement is November 13, 2017


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TABLE OF CONTENTS

Prospectus Supplement

 

PROSPECTUS SUPPLEMENT SUMMARY

   
S-1
 

RISK FACTORS

    S-4  

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

    S-7  

USE OF PROCEEDS

    S-9  

PLAN OF DISTRIBUTION

    S-10  

LEGAL MATTERS

    S-15  

EXPERTS

    S-15  

Prospectus

 

PROSPECTUS SUMMARY

   
1
 

RISK FACTORS

    3  

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

    3  

USE OF PROCEEDS

    4  

DESCRIPTION OF CAPITAL STOCK

    5  

DESCRIPTION OF DEBT SECURITIES

    12  

DESCRIPTION OF DEPOSITARY SHARES

    22  

DESCRIPTION OF WARRANTS

    26  

DESCRIPTION OF RIGHTS

    27  

DESCRIPTION OF UNITS

    28  

CERTAIN PROVISIONS OF MARYLAND LAW AND OF OUR CHARTER AND BYLAWS

    29  

MATERIAL FEDERAL INCOME TAX CONSIDERATIONS

    37  

SELLING STOCKHOLDERS

    67  

PLAN OF DISTRIBUTION

    68  

WHERE YOU CAN FIND MORE INFORMATION

    71  

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    71  

LEGAL MATTERS

    72  

EXPERTS

    72  



        You should rely only on the information contained, or incorporated by reference, in this prospectus supplement, the accompanying prospectus or any free writing prospectus prepared by us or information to which we have referred you. We have not, and the Sales Agents, the Forward Sellers and the Forward Purchasers have not, authorized any other person to provide you with different or additional information. If anyone provides you with different or additional information, you should not rely on it. We are not, and the Sales Agents, the Forward Sellers and the Forward Purchasers are not, making an offer to sell or soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus, any applicable free writing prospectus prepared by us and the documents incorporated by reference in the accompanying prospectus is accurate only as of their respective dates or on the date or dates which are specified in those documents. Our business, financial condition, liquidity, results of operations and prospects may have changed since those dates.


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PROSPECTUS SUPPLEMENT SUMMARY

About this Prospectus Supplement

        This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering and supplements and updates information contained in the accompanying prospectus. The second part is the accompanying prospectus, which gives more general information, some of which may not apply to this offering. To the extent the information contained in this prospectus supplement differs or varies from the information contained in the accompanying prospectus or documents incorporated by reference therein, the information in this prospectus supplement will supersede such information.

        This prospectus supplement does not contain all of the information that is important to you. You should read the accompanying prospectus as well as the documents incorporated by reference in the accompanying prospectus. See "Where You Can Find More Information" and "Incorporation of Certain Documents by Reference" in the accompanying prospectus.

        Unless otherwise indicated or the context requires otherwise, in this prospectus supplement references to "our company," "we," "us," and "our" refer to STAG Industrial, Inc., a Maryland corporation, and its consolidated subsidiaries, including STAG Industrial Operating Partnership, L.P., a Delaware limited partnership, which we refer to in this prospectus supplement as our "operating partnership."

Our Company

        STAG Industrial, Inc. is a REIT focused on the acquisition, ownership and operation of single-tenant, industrial properties throughout the United States. As of September 30, 2017, we owned 347 buildings in 37 states with approximately 69.1 million rentable square feet, consisting of 279 warehouse/distribution buildings, 53 light manufacturing buildings, 14 flex/office buildings and one building in redevelopment. As of September 30, 2017, our buildings were approximately 94.6% leased to 301 tenants.

        We were incorporated on July 21, 2010 under the laws of the State of Maryland. We are organized and conduct our operations to maintain our qualification as a REIT under Sections 856 through 859 of the Internal Revenue Code of 1986, as amended (the "Code"), and generally are not subject to federal income tax to the extent we currently distribute our income to our stockholders and maintain our qualification as a REIT. We are structured as an umbrella partnership REIT, also known as an UPREIT, and own all of our properties and conduct substantially all of our business through our operating partnership, which we control and manage. As of September 30, 2017, we owned approximately 95.8% of the common equity of our operating partnership.

        Our principal executive offices are located at One Federal Street, 23rd Floor, Boston, Massachusetts 02110, and our telephone number is (617) 574-4777. Our website is www.stagindustrial.com. However, the information located on, or accessible from, our website is not, and should not be deemed to be, part of this prospectus supplement, the accompanying prospectus or any free writing prospectus or incorporated into any other filing that we submit to the Securities and Exchange Commission ("SEC").

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The Offering

Common stock offered by us or the Forward Purchaser or affiliates thereof

  Shares having an aggregate offering price of up to $500,000,000

Use of proceeds

 

Our operating partnership intends to use the net proceeds to fund acquisitions, to repay indebtedness, including amounts outstanding under our $450 million unsecured credit facility (our "credit facility"), for working capital and other general corporate purposes, or a combination of the foregoing.

Accounting treatment of forward sales

 

In the event that we enter into any forward sale agreements, we expect that before the issuance of shares of our common stock, if any, upon physical or net share settlement of any forward sale agreement, the shares issuable upon settlement of that particular forward sale agreement will be reflected in our diluted earnings per share calculations using the treasury stock method. Under this method, the number of shares of our common stock used in calculating diluted earnings per share is deemed to be increased by the excess, if any, of the number of shares of common stock that would be issued upon full physical settlement of that particular forward sale agreement over the number of shares of common stock that could be purchased by us in the market (based on the average market price during the relevant period) using the proceeds receivable upon full physical settlement (based on the adjusted forward sale price at the end of the relevant reporting period).

 

Consequently, before physical or net share settlement of a particular forward sale agreement and subject to the occurrence of certain events, we anticipate there will be no dilutive effect on our earnings per share except during periods when the average market price of our common stock is above the applicable adjusted forward sale price under that particular forward sale agreement, subject to increase or decrease based on a specified daily rate, less a spread, and subject to decrease by amounts related to expected dividends on our common stock during the term of that particular forward sale agreement. However, if we physically or net-share settle a particular forward sale agreement, the delivery by us of shares of our common stock would result in an increase in the number of shares outstanding and dilution to our earnings per share and return on equity.

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Restrictions on ownership and transfer

 

We are organized and conduct our operations in a manner that will allow us to qualify as a REIT. To assist us in qualifying as a REIT, among other reasons, stockholders are generally restricted from owning more than 9.8% in value or in number of shares, whichever is more restrictive, of the aggregate of our outstanding shares of common stock or of the aggregate of our outstanding shares of capital stock. Our charter contains additional restrictions on the ownership and transfer of shares of our common stock. See "Description of Capital Stock—Restrictions on Ownership and Transfer of Stock" in the accompanying prospectus.

Risk Factors

 

Investing in our common stock involves various risks. Before purchasing shares of common stock offered by this prospectus supplement, you should carefully consider the matters discussed under the caption entitled "Risk Factors" included in our most recent Annual Report on Form 10-K, under the caption entitled "Risk Factors" beginning on page S-4 of this prospectus supplement and in the other documents incorporated by reference in the accompanying prospectus.

NYSE Symbol

 

STAG

S-3


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RISK FACTORS

        Investing in our common stock involves risks. Before purchasing the shares of common stock offered by this prospectus supplement, in addition to other information contained in this prospectus supplement and the accompanying prospectus, you should consider carefully the risk factors described below, as well as the risks described in the documents incorporated by reference in the accompanying prospectus from our Annual Report on Form 10-K for the year ended December 31, 2016 filed with the SEC on February 16, 2017, and as may be updated by our subsequent filings under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The risks and uncertainties we discuss in this prospectus supplement, the accompanying prospectus and in the documents incorporated by reference in the accompanying prospectus are those that we currently believe may materially affect our company. Additional risks not presently known, or currently deemed immaterial, also could materially and adversely affect our financial condition, results of operations, business and prospects.

Risks Related to Forward Sale Agreements

Settlement provisions contained in a forward sale agreement could result in substantial dilution to our earnings per share and return on equity or result in substantial cash payment obligations.

        If we enter into one or more forward sale agreements, the relevant Forward Purchaser will have the right to accelerate that particular forward sale agreement (with respect to all or any portion of the transaction under that particular forward sale agreement that the relevant Forward Purchaser determines is affected by such event) and require us to settle on a date specified by the relevant Forward Purchaser if:

        A Forward Purchaser's decision to exercise its right to accelerate a settlement of a particular forward sale agreement upon the occurrence of the events described above will be made irrespective of our need for capital. In such cases, we could be required to issue and deliver shares of common stock under the physical settlement provisions of that particular forward sale agreement or, if we so elect and the Forward Purchaser so permits our election, net share settlement provisions of that particular

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forward sale agreement irrespective of our capital needs, which would result in dilution to our earnings per share and return on equity.

        We expect that settlement of any forward sale agreement will generally occur no later than the date specified in the particular forward sale agreement, which will be no sooner than three months and no later than two years following the trade date of that forward sale agreement. However, any forward sale agreement may be settled earlier than the latest potential settlement date specified in that particular forward sale agreement in whole or in part at our option. We expect that each forward sale agreement will be physically settled by delivery of shares of our common stock unless we elect to cash settle or net share settle a particular forward sale agreement. Upon physical settlement or, if we so elect, net share settlement of a particular forward sale agreement, delivery of shares of our common stock in connection with such physical settlement or, to the extent we are obligated to deliver shares of our common stock, net share settlement, will result in dilution to our earnings per share and return on equity. If we elect cash settlement or net share settlement with respect to all or a portion of the shares of common stock underlying a particular forward sale agreement, we expect that the relevant Forward Purchaser (or an affiliate thereof) will purchase a number of shares of common stock necessary to satisfy its or its affiliate's obligation to return the shares of common stock borrowed from third parties in connection with sales of shares of our common stock in relation to that forward sale agreement, adjusted in the case of net share settlement, by any shares deliverable by or to us under the forward sale agreement. In addition, the purchase of shares of our common stock in connection with the relevant Forward Purchaser or its affiliate unwinding its hedge positions could cause the price of our common stock to increase over such time (or prevent a decrease over such time), thereby increasing the amount of cash we would owe to the relevant Forward Purchaser (or decreasing the amount of cash that the relevant Forward Purchaser would owe us) upon a cash settlement of the relevant forward sale agreement or increasing the number of shares of common stock we would deliver to the relevant Forward Purchaser (or decreasing the number of shares of common stock that the relevant Forward Purchaser would deliver to us) upon net share settlement of the relevant forward sale agreement.

        The forward sale price that we expect to receive upon physical settlement of a particular forward sale agreement will be subject to adjustment on a daily basis based on a floating interest rate factor equal to a specified daily rate less a spread and will be decreased based on amounts related to expected dividends on our common stock during the term of the particular forward sale agreement. If the specified daily rate is less than the spread on any day, the interest factor will result in a daily reduction of the applicable forward sale price. As of the date of this prospectus supplement, the specified daily rate is greater than the expected spread for any particular forward sale agreement. However, should this change during the term of a particular forward sale agreement, we could receive less than the initial forward sale price per share upon physical settlement of that particular forward sale agreement. If the market value of our common stock, determined in accordance with the terms of the relevant forward sale agreement, during the relevant valuation period under the particular forward sale agreement is above the applicable forward sale price, in the case of cash settlement, we would pay the relevant Forward Purchaser under that particular forward sale agreement an amount in cash equal to the difference or, in the case of net share settlement, we would deliver to the relevant Forward Purchaser a number of shares of common stock having a value, determined in accordance with the terms of the relevant forward sale agreement, equal to the difference. Thus, we could be responsible for a potentially substantial cash payment in the case of cash settlement of a particular forward sale agreement. If the market value of our common stock, determined in accordance with the terms of the relevant forward sale agreement, during the relevant valuation period under that particular forward sale agreement is below the applicable forward sale price, in the case of cash settlement, we would be paid the difference in cash by the relevant Forward Purchaser under that particular forward sale agreement or, in the case of net share settlement, we would receive from the relevant Forward Purchaser a number of shares of common stock having a value equal to the difference. See "Plan of Distribution" for information on the forward sale agreements.

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In case of our bankruptcy or insolvency, any forward sale agreements will automatically terminate, and we would not receive the expected proceeds from any forward sales of our common stock.

        If we file for or consent to a proceeding seeking a judgment in bankruptcy or insolvency or any other relief under any bankruptcy or insolvency law or other similar law affecting creditors' rights, or we or a regulatory authority with jurisdiction over us presents a petition for our winding-up or liquidation, and we consent to such a petition, any forward sale agreements that are then in effect will automatically terminate. If any such forward sale agreement so terminates under these circumstances, we would not be obligated to deliver to the relevant Forward Purchaser any of our common stock not previously delivered, and the relevant Forward Purchaser would be discharged from its obligation to pay the applicable forward sale price per share in respect of any of our common stock not previously settled under the applicable forward sale agreement. Therefore, to the extent that there are any shares of our common stock with respect to which any forward sale agreement has not been settled at the time of the commencement of any such bankruptcy or insolvency proceedings, we would not receive the relevant forward sale price per share in respect of those shares of our common stock.

The U.S. federal income tax treatment of the cash that we might receive from cash settlement of a forward sale agreement is unclear and could jeopardize our ability to meet the REIT qualification requirements.

        In the event that we elect to settle any forward sale agreement for cash and the settlement price is below the applicable forward sale price, we would be entitled to receive a cash payment from the relevant Forward Purchaser. Under Section 1032 of the Code, generally, no gains and losses are recognized by a corporation in dealing in its own shares, including pursuant to a "securities futures contract," as defined in the Code by reference to the Exchange Act. Although we believe that any amount received by us in exchange for our stock would qualify for the exemption under Section 1032 of the Code, because it is not entirely clear whether a forward sale agreement qualifies as a "securities futures contract," the U.S. federal income tax treatment of any cash settlement payment we receive is uncertain. In the event that we recognize a significant gain from the cash settlement of a forward sale agreement, we might not be able to satisfy the gross income requirements applicable to REITs under the Code. In that case, we may be able to rely upon the relief provisions under the Code in order to avoid the loss of our REIT status. Even if the relief provisions apply, we will be subject to a 100% tax on the greater of (i) the excess of 75% of our gross income (excluding gross income from prohibited transactions) over the amount of such income attributable to sources that qualify under the 75% test or (ii) the excess of 95% of our gross income (excluding gross income from prohibited transactions) over the amount of such gross income attributable to sources that qualify under the 95% test, as discussed in the accompanying prospectus under "Material Federal Income Tax Considerations—Taxation of our Company," multiplied in either case by a fraction intended to reflect our profitability. In the event that these relief provisions were not available, we could lose our REIT status under the Code.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

        This prospectus supplement and the accompanying prospectus, including the documents that are incorporated by reference therein, each contain "forward-looking statements" within the meaning of the safe harbor from civil liability provided for such statements by the Private Securities Litigation Reform Act of 1995 (set forth in Section 27A of the Securities Act and Section 21E of the Exchange Act). You can identify forward-looking statements by the use of words such as "anticipates," "believes," "estimates," "expects," "intends," "may," "plans," "projects," "seeks," "should," "will," and variations of such words or similar expressions. Forward-looking statements in this prospectus supplement and the accompanying prospectus, including the documents that are incorporated by reference therein, include, among others, statements about our future financial condition, results of operations, capitalization rates on future acquisitions, our business strategy and objectives, including our acquisition strategy, occupancy and leasing rates and trends, and expected liquidity needs and sources (including capital expenditures and the ability to obtain financing or raise capital). Our forward-looking statements reflect our current views about our plans, intentions, expectations, strategies and prospects, which are based on the information currently available to us and on assumptions we have made. Although we believe that our plans, intentions, expectations, strategies and prospects as reflected in or suggested by our forward-looking statements are reasonable, we can give no assurance that our plans, intentions, expectations, strategies or prospects will be attained or achieved and you should not place undue reliance on these forward-looking statements. Furthermore, actual results may differ materially from those described in the forward-looking statements and may be affected by a variety of risks and factors including, without limitation:

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        Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise over time, and it is not possible for us to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Accordingly, investors should use caution in relying on past forward-looking statements, which were based on results and trends at the time they were made, to anticipate future results or trends. For a further discussion of these and other factors that could impact our future results, performance or transactions, see the section above entitled "Risk Factors," including the risks incorporated by reference in the accompanying prospectus from our most recent Annual Report on Form 10-K, as may be updated by subsequent filings with the SEC.

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USE OF PROCEEDS

        We will contribute the net proceeds we receive from the sale of shares of our common stock through the Sales Agents, after deducting commissions and offering expenses, as well as any proceeds we receive upon the settlement of any forward sale agreement, to our operating partnership in exchange for common units in our operating partnership. Our operating partnership intends to use the net proceeds to fund acquisitions, to repay indebtedness, including amounts outstanding under our credit facility, for working capital and other general corporate purposes, or a combination of the foregoing.

        As of September 30, 2017, borrowings under our credit facility bore interest at LIBOR plus 1.15% and totaled approximately $245.0 million. The proceeds from the borrowings under our credit facility were used for property acquisitions, working capital requirements and other general corporate purposes. Our credit facility matures on December 18, 2019.

        Pending application of cash proceeds, we intend to invest the net proceeds temporarily in interest-bearing, short-term investment-grade securities, money-market accounts or checking accounts, which are consistent with our qualification as a REIT. Such investments may include, for example, government and government agency certificates, certificates of deposit, interest-bearing bank deposits and mortgage loan participations. These initial investments are expected to provide a lower net return than we will seek to achieve from investments in our properties.

        Affiliates of certain Sales Agents, Forward Sellers and Forward Purchasers are lenders under our credit facility and unsecured term loans. To the extent that we use any of the net proceeds of this offering to repay borrowings outstanding under our credit facility or unsecured term loans, such affiliates will receive their proportionate share of any amount of our credit facility or unsecured term loans that is repaid with the net proceeds from this offering. See "Plan of Distribution."

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PLAN OF DISTRIBUTION

        We have entered into separate equity distribution agreements, dated as of November 13, 2017, with each of Robert W. Baird & Co. Incorporated, BB&T Capital Markets, a division of BB&T Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, BMO Capital Markets Corp., BTIG, LLC, Cantor Fitzgerald & Co., Capital One Securities, Inc., Citigroup Global Markets Inc., Evercore Group L.L.C., Jefferies LLC, Morgan Stanley & Co. LLC, Raymond James & Associates, Inc., RBC Capital Markets, LLC, and Wells Fargo Securities, LLC (or certain of their respective affiliates, acting in their capacity as Sales Agents or as Forward Sellers) relating to the offer and sale of shares of our common stock having an aggregate offering price of up to $500,000,000. Sales of our shares of common stock, if any, under this prospectus supplement and the accompanying prospectus may be made in negotiated transactions, which may include block trades, or transactions that are deemed to be "at the market" offerings as defined in Rule 415 under the Securities Act, including sales made directly on the NYSE or sales made to or through a market maker other than on an exchange.

        The equity distribution agreements provide that, in addition to the issuance and sale of shares of our common stock by us through the Sales Agents, we also may enter into forward sale agreements under separate master forward sale agreements and related supplemental confirmations between us and a Forward Purchaser. In connection with each particular forward sale agreement, the relevant Forward Purchaser will borrow from third parties and, through the relevant Forward Seller, sell a number of shares of our common stock equal to the number of shares of our common stock underlying the particular forward sale agreement.

        We will report at least quarterly the number of shares of common stock sold through the Sales Agents and/or Forward Sellers, as agents, under the equity distribution agreements, the number of shares of common stock issued upon settlement of any forward sales agreements (if any), and the net proceeds to us and the compensation paid by us to the Sales Agents and/or Forward Sellers, as agents, in connection with the sales of shares of common stock.

        In connection with the sale of shares of common stock, each of the Sales Agents, Forward Purchasers and/or Forward Sellers may be deemed to be an "underwriter" within the meaning of the Securities Act, and the compensation paid to the Sales Agents or the Forward Sellers in the form of a reduced initial forward sale price under the related forward sale agreement with the related Forward Purchaser may be deemed to be underwriting commissions or discounts. We have agreed to indemnify each of the Sales Agents, Forward Sellers and Forward Purchasers against specified liabilities, including liabilities under the Securities Act, or to contribute to payments that the Sales Agents, Forward Sellers or Forward Purchasers may be required to make because of those liabilities.

        The relevant Sales Agent or Forward Seller, as applicable, will provide written confirmation to us, and in the case of the Forward Seller, to the Forward Purchaser, no later than the opening of the trading day on the NYSE on the day following the trading day in which our shares of common stock were sold under the applicable equity distribution agreement. For shares sold by a Sales Agent, each confirmation will include the number of shares sold on such day, the net proceeds to us and the compensation payable by us to the Sales Agent in connection with the sales. For shares sold by a Forward Seller, each confirmation will include the number of shares sold on such day, the compensation payable by us to the Forward Seller in the form of a reduced initial forward sale price under the related forward sale agreement with the related Forward Purchaser, and the initial forward sale price payable by such Forward Purchaser.

        The offering of our shares of common stock under any equity distribution agreement will terminate upon the earlier of (i) the sale of shares having an aggregate offering price of $500,000,000 and (ii) the termination of such equity distribution agreement by us, the respective Sales Agent, the respective Forward Seller or the respective Forward Purchaser.

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        We estimate that the total expenses for the offering, excluding compensation payable to the Sales Agents and/or the Forward Sellers, as applicable, under the terms of the equity distribution agreements, will be approximately $200,000. To the extent that we have not sold at least $20.0 million of shares of common stock by the second anniversary of the equity distribution agreements, we have agreed to reimburse the Sales Agents or the Forward Sellers and the Forward Purchasers for reasonable out-of-pocket expenses, including the reasonable fees and disbursements of counsel incurred by such Sales Agents or Forward Sellers and Forward Purchasers, as applicable, up to a maximum aggregate amount of $100,000.

Sales Through Sales Agents

        Upon its acceptance of a placement notice from us, each Sales Agent, if acting as agent, will use commercially reasonable efforts consistent with its normal sales and trading practices to sell our shares of common stock under the terms and subject to the conditions set forth in the applicable equity distribution agreement and such placement notice. The placement notice that we deliver will set forth the maximum number of shares to be issued, the time period during which sales are requested to be made, any limitation on the number of shares that may be sold in any one day and any minimum price below which sales may not be made or a formula pursuant to which such minimum price shall be determined. Our shares of common stock sold pursuant to the equity distribution agreements will be sold through only one of the Sales Agents on any given day. We or any of the Sales Agents may suspend the sale of shares of common stock upon proper notice and subject to other conditions.

        We will pay each Sales Agent commissions for its services in acting as agent and/or principal in the sale of shares of common stock. Each Sales Agent will be entitled to compensation that will not exceed, but may be lower than, 2.0% of the gross sales price of all shares of common stock sold through it as Sales Agent from time to time under the applicable equity distribution agreement.

        We also may sell some or all of the shares of common stock to a Sales Agent as principal for its own account at a price agreed upon at the time of sale.

        We generally expect to settle on the standard settlement cycle then in-effect, unless some other date is agreed upon by us and the applicable Sales Agent in connection with a particular transaction, in return for payment of the net proceeds to us. There is no arrangement for funds to be received in an escrow, trust or similar arrangement.

Sales Through Forward Sellers

        From time to time during the term of the equity distribution agreements, and subject to the terms and conditions set forth therein and in the related forward sale agreements, we may deliver a placement notice relating to a forward to any of the Forward Sellers and the relevant Forward Purchaser. Upon acceptance of a placement notice from us requesting that the Forward Seller execute sales of shares of borrowed common stock in connection with one or more forward sale agreements, and subject to the terms and conditions of the relevant equity distribution agreement and the forward sale agreement, the relevant Forward Purchaser will use commercially reasonable efforts to borrow, and the relevant Forward Seller will use commercially reasonable efforts consistent with its normal trading and sales practices to sell, the relevant shares of our common stock on such terms to hedge the relevant Forward Purchaser's exposure under that particular forward sale agreement. We or the relevant Forward Seller may immediately suspend the offering of our common stock at any time upon proper notice to the other.

        We expect that settlement between the relevant Forward Purchaser and Forward Seller of sales of borrowed shares of our common stock, as well as the settlement between the relevant Forward Seller and buyers of such shares of our common stock in the market, will generally occur on the standard settlement cycle then in-effect. The obligation of the relevant Forward Seller under the relevant equity

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distribution agreement to execute such sales of our common stock is subject to a number of conditions, which each Forward Seller reserves the right to waive in its sole discretion.

        In connection with each forward sale agreement, we will pay the relevant Forward Seller, in the form of a reduced initial forward sale price under the related forward sale agreement with the related Forward Purchaser, commissions at a mutually agreed rate that will not exceed, but may be lower than, 2.0% of sales prices of all borrowed shares of common stock sold by it as a Forward Seller. We refer to this commission rate as the forward selling commission. The borrowed shares will be sold during a period of one to 20 consecutive trading days determined by us in our sole discretion and as specified in the relevant placement notice (with such period subject to early termination in certain circumstances).

        The forward sale price per share under each forward sale agreement will initially equal the product of (1) an amount equal to one minus the applicable forward selling commission and (2) the volume-weighted average price per share at which the shares of borrowed common stock were sold pursuant to the particular equity distribution agreement by the relevant Forward Seller, subject to adjustment as described below.

        The forward sale agreements, the minimum terms of which may not be less than three months and the maximum terms of which may not exceed two years, will provide that the forward sale price, as well as the sales prices used to calculate the initial forward sale price, will be subject to increase or decrease based on a specified daily rate, less a spread, and subject to decrease by amounts related to expected dividends on our common stock during the term of the particular forward sale agreement. If the specified daily rate is less than the spread on any day, the interest factor will result in a daily reduction of the forward sale price. As of the date of this prospectus supplement, the specified daily rate is greater than the expected spread for any particular forward sale agreement. However, should this change during the term of a particular forward sale agreement, we could receive less than the initial forward sale price per share upon physical settlement of that particular forward sale agreement.

        Before settlement of a particular forward sale agreement, we expect that the shares of our common stock issuable upon settlement of that particular forward sale agreement will be reflected in our diluted earnings per share, return on equity and dividends per share calculations using the treasury stock method. Under this method, the number of shares of our common stock used in calculating diluted earnings per share, return on equity and dividends per share is deemed to be increased by the excess, if any, of the number of shares of our common stock that would be issued upon full physical settlement of that particular forward sale agreement over the number of shares of our common stock that could be purchased by us in the market (based on the average market price during the relevant period) using the proceeds receivable upon full physical settlement (based on the adjusted forward sale price at the end of the relevant reporting period). Consequently, before physical or net share settlement of a particular forward sale agreement and subject to the occurrence of certain events, we anticipate there will be no dilutive effect on our earnings per share, except during periods when the average market price of our common stock is above the applicable forward sale price.

        Except under limited circumstances described below, we have the right to elect physical, cash or net share settlement under any forward sale agreement. Although we expect to settle any forward sale agreement entirely by delivering shares of our common stock in connection with full physical settlement, we may, subject to certain conditions, elect cash settlement or net share settlement for all or a portion of our obligations under a particular forward sale agreement if we conclude that it is in our interest to do so. For example, we may conclude that it is in our interest to cash settle or net share settle a particular forward sale agreement if we have no then-current use for all or a portion of the net proceeds that we would receive upon physical settlement. In addition, subject to certain conditions, we may elect to accelerate the settlement of all or a portion of the number of shares of our common stock underlying a particular forward sale agreement.

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        If we elect to physically settle any forward sale agreement by issuing and delivering shares of our common stock, we will receive an amount of cash from the relevant Forward Purchaser equal to the product of the forward sale price per share under that particular forward sale agreement and the number of shares of our common stock underlying the particular forward sale agreement. In the event that we elect to cash settle, the settlement amount will be generally related to (1) (a) the average of the volume-weighted average price of our common stock on each exchange business day during the relevant valuation period under the particular forward sale agreement minus (b) the applicable forward sale price; multiplied by (2) the number of shares of our common stock underlying the particular forward sale agreement subject to cash settlement. In the event we elect to net share settle, the settlement amount will be generally related to (1) (a) the weighted average price at which the relevant Forward Purchaser or its affiliate purchases shares of our common stock during the relevant valuation period for such settlement under that particular forward sale agreement minus (b) the applicable forward sale price; multiplied by (2) the number of shares of our common stock underlying that particular forward sale agreement subject to such net share settlement. If this settlement amount is a negative number, the relevant Forward Purchaser will pay us the absolute value of that amount (in the case of cash settlement) or deliver to us a number of shares of our common stock having a value, determined pursuant to the terms of the relevant forward sale agreement, equal to the absolute value of such amount (in the event of net share settlement). If this settlement amount is a positive number, we will pay the relevant Forward Purchaser that amount (in the case of cash settlement) or deliver to the relevant Forward Purchaser a number of shares of our common stock having a value, determined pursuant to the terms of the relevant forward sale agreement, equal to such amount (in the event of net share settlement). In connection with any cash settlement or net share settlement, we would expect the relevant Forward Purchaser or its affiliate to purchase shares of our common stock in secondary market transactions for delivery to third-party stock lenders in order to close out the Forward Purchaser's hedge position in respect of that particular forward sale agreement and, if applicable, for delivery to us under a net share settlement. The purchase of shares of our common stock in connection with the relevant Forward Purchaser or its affiliate unwinding the Forward Purchaser's hedge positions could cause the price of our common stock to increase over time (or prevent a decrease over time), thereby increasing the amount of cash we owe to the relevant Forward Purchaser (or decreasing the amount of cash that the relevant Forward Purchaser owes us) upon cash settlement or increasing the number of shares of our common stock that we are obligated to deliver to the relevant Forward Purchaser (or decreasing the number of shares of our common stock that the relevant Forward Purchaser is obligated to deliver to us) upon net share settlement of the particular forward sale agreement. See "Risk Factors—Risks Related to Forward Sale Agreements."

        A Forward Purchaser will have the right to accelerate the particular forward sale agreement (with respect to all or any portion of the transaction under the particular forward sale agreement that the relevant Forward Purchaser determines is affected by such event) and require us to physically settle on a date specified by the relevant Forward Purchaser if (1) the relevant Forward Purchaser is unable to, or would incur a materially increased cost to, establish, maintain or unwind its hedge position with respect to the particular forward sale agreement; (2) the relevant Forward Purchaser determines that it is unable after using commercially reasonable efforts, to continue to borrow a number of shares of our common stock equal to the number of shares of our common stock underlying the particular forward sale agreement or that, with respect to borrowing such number of shares of our common stock, it would incur a cost that is greater than the stock borrow cost specified in the particular forward sale agreement, subject to a prior notice requirement; (3) a termination event occurs as a result of us declaring a dividend or distribution on our common stock with a cash value in excess of a specified amount per month with an ex-dividend date prior to the anticipated ex-dividend date for such cash dividend; (4) an extraordinary event (as such term is defined in the particular forward sale agreement and which includes certain mergers and tender offers and the delisting of our common stock) occurs or there is a public announcement of any action that, if consummated, would constitute such an

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extraordinary event; or (5) certain other events of default, termination events or other specified events occur, including, among other things, any material misrepresentation made by us in connection with entering into the particular forward sale agreement, our bankruptcy or a change in law (as such terms are defined in the particular forward sale agreement). The relevant Forward Purchaser's decision to exercise its right to accelerate the settlement of the particular forward sale agreement will be made irrespective of our need for capital. In such cases, we could be required to issue and deliver shares of our common stock under the physical settlement provisions of the particular forward sale agreement or, if we so elect and the relevant Forward Purchaser permits our election, net share settlement provisions of the particular forward sale agreement irrespective of our capital needs which would result in dilution to our earnings per share, return on equity and dividends per share. In addition, upon certain events of bankruptcy, insolvency or reorganization relating to us, the particular forward sale agreement will terminate without further liability of either party. Following any such termination, we would not issue any shares of our common stock or receive any proceeds pursuant to the particular forward sale agreement. See "Risk Factors—Risks Related to Forward Sale Agreements."

        A Forward Purchaser (or its affiliate) will receive the net proceeds of any sale of borrowed shares of our common stock in connection with the relevant equity distribution agreement and any forward sale agreement. As a result, Bank of America N.A., Bank of Montreal, Citibank, N.A., Jefferies LLC, Morgan Stanley & Co. LLC, Royal Bank of Canada and Wells Fargo Bank, National Association or their affiliates or any other Sales Agent or its affiliates who may enter forward sale agreements with us may receive the net proceeds from the sale of such shares, not including commissions.

        Affiliates of BB&T Capital Markets, a division of BB&T Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Capital One Securities, Inc., Citigroup Global Markets Inc., Morgan Stanley & Co. LLC, Raymond James & Associates, Inc., RBC Capital Markets, LLC, and Wells Fargo Securities, LLC are lenders under our credit facility. As of September 30, 2017, borrowings of approximately $245.0 million were outstanding under our credit facility. In connection with their participation in our credit facility, such affiliates receive customary fees, and to the extent that we use any of the net proceeds of this offering to repay borrowings outstanding under our credit facility, such affiliates will receive their proportionate share of any amount of our credit facility that is repaid with the net proceeds of this offering.

        Affiliates of Capital One Securities, Inc., Raymond James & Associates, Inc. and Wells Fargo Securities, LLC are lenders under our seven-year $150.0 million unsecured term loan maturing in March 2022, affiliates of Capital One Securities, Inc. and Wells Fargo Securities, LLC are lenders under our seven-year $150.0 million unsecured term loan maturing in March 2021, affiliates of BB&T Capital Markets, a division of BB&T Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Capital One Securities, Inc., Citigroup Global Markets Inc., Morgan Stanley & Co. LLC, Raymond James & Associates, Inc., and Wells Fargo Securities, LLC are lenders under our five-year $150.0 million unsecured term loan maturing in September 2020, and affiliates of BB&T Capital Markets, a division of BB&T Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Capital One Securities, Inc., Citigroup Global Markets Inc., Morgan Stanley & Co. LLC, Raymond James & Associates, Inc., RBC Capital Markets, LLC, and Wells Fargo Securities, LLC are lenders under our five-year $150.0 million unsecured term loan maturing in January 2023. In connection with their participation in our unsecured term loans, such affiliates receive customary fees, and to the extent that we use any of the net proceeds of this offering to repay borrowings outstanding under our unsecured term loans, such affiliates will receive their proportionate share of any amount of our unsecured term loans that is repaid with the net proceeds of this offering.

        Each of the Sales Agents, each of the Forward Sellers, each of the Forward Purchasers and/or their respective affiliates have engaged in, and may in the future engage in, investment banking and

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other commercial dealings in the ordinary course of business with us or our affiliates. They have received, or may in the future receive, customary fees and commissions for these transactions.

        In addition, in the ordinary course of their business activities, the Sales Agents, the Forward Sellers, the Forward Purchasers and their respective affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of their customers. Such investments and securities activities may involve securities and/or instruments of ours or our affiliates. The Sales Agents, the Forward Sellers, the Forward Purchasers and their respective affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or financial instruments and may hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.


LEGAL MATTERS

        Certain legal matters will be passed upon for us by DLA Piper LLP (US) and certain U.S. federal income tax matters have been passed upon for us by Hunton & Williams LLP. Certain legal matters will be passed upon for the Sales Agents by Goodwin Procter LLP. Davis Polk & Wardwell LLP has advised the Forward Purchasers with respect to the forward sale agreements.


EXPERTS

        The financial statements and management's assessment of the effectiveness of internal control over financial reporting (which is included in Management's Report on Internal Control over Financial Reporting), incorporated in the accompanying prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2016, have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

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PROSPECTUS

LOGO

Common Stock
Preferred Stock
Debt Securities
Depositary Shares
Warrants
Rights
Units

        STAG Industrial, Inc. or any selling stockholder may offer, issue and sell from time to time, together or separately, the securities described in this prospectus.

        This prospectus describes some of the general terms that apply to the securities. We will provide specific terms of any securities we or any selling stockholder may offer in supplements to this prospectus. You should read this prospectus and any applicable prospectus supplement carefully before you invest. We also may authorize one or more free writing prospectuses to be provided to you in connection with the offering. The prospectus supplement and any free writing prospectus also may add, update or change information contained or incorporated in this prospectus.

        We or any selling stockholder may offer and sell these securities to or through one or more underwriters, dealers or agents, or directly to purchasers on a continuous or delayed basis. The prospectus supplement for each offering of securities will describe the plan of distribution for that offering. For general information about the distribution of securities offered, see "Plan of Distribution" in this prospectus. The prospectus supplement also will set forth the price to the public of the securities and the net proceeds that we expect to receive from the sale of such securities. We will not receive any of the proceeds from the sale of securities by any selling stockholder.

        Our common stock is traded on the New York Stock Exchange ("NYSE") under the symbol "STAG." On April 6, 2017, the last reported sales price of our common stock on the NYSE was $25.53 per share

        We impose certain restrictions on the ownership and transfer of our capital stock. You should read the information under the section entitled "Description of Capital Stock—Restrictions on Ownership and Transfer of Stock" in this prospectus for a description of these restrictions.



        Investing in our securities involves risks. You should read carefully and consider "Risk Factors" included in our most recent annual report on Form 10-K and on page 3 of this prospectus and in the applicable prospectus supplement before investing in our securities.



        Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is April 7, 2017



TABLE OF CONTENTS

PROSPECTUS SUMMARY

    1  

RISK FACTORS

    3  

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

    3  

USE OF PROCEEDS

    4  

DESCRIPTION OF CAPITAL STOCK

    5  

DESCRIPTION OF DEBT SECURITIES

    12  

DESCRIPTION OF DEPOSITARY SHARES

    22  

DESCRIPTION OF WARRANTS

    26  

DESCRIPTION OF RIGHTS

    27  

DESCRIPTION OF UNITS

    28  

CERTAIN PROVISIONS OF MARYLAND LAW AND OF OUR CHARTER AND BYLAWS

    29  

MATERIAL FEDERAL INCOME TAX CONSIDERATIONS

    37  

SELLING STOCKHOLDERS

    67  

PLAN OF DISTRIBUTION

    68  

WHERE YOU CAN FIND MORE INFORMATION

    71  

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    71  

LEGAL MATTERS

    72  

EXPERTS

    72  



        You should rely only on the information contained in this prospectus, in an accompanying prospectus supplement or incorporated by reference herein or therein. We have not authorized anyone to provide you with information or make any representation that is different. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus and any accompanying prospectus supplement do not constitute an offer to sell or a solicitation of an offer to buy any securities other than the registered securities to which they relate, and this prospectus and any accompanying prospectus supplement do not constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction where, or to any person to whom, it is unlawful to make such an offer or solicitation. You should not assume that the information contained in this prospectus and any accompanying prospectus supplement is correct on any date after the respective dates of the prospectus and such prospectus supplement or supplements, as applicable, even though this prospectus and such prospectus supplement or supplements are delivered or shares are sold pursuant to the prospectus and such prospectus supplement or supplements at a later date. Since the respective dates of the prospectus contained in this registration statement and any accompanying prospectus supplement, our business, financial condition, results of operations and prospects may have changed. We may only use this prospectus to sell the securities if it is accompanied by a prospectus supplement.

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PROSPECTUS SUMMARY

        This summary only highlights the more detailed information appearing elsewhere in this prospectus or incorporated by reference in this prospectus. It may not contain all of the information that is important to you. You should carefully read the entire prospectus and the documents incorporated by reference in this prospectus before deciding whether to invest in our securities.

        Unless otherwise indicated or the context requires otherwise, in this prospectus and any prospectus supplement hereto references to "our company," "we," "us," and "our" refer to STAG Industrial, Inc., a Maryland corporation, and its consolidated subsidiaries, including STAG Industrial Operating Partnership, L.P., a Delaware limited partnership, which we refer to in this prospectus as our "operating partnership."

About This Prospectus

        This prospectus is part of a "shelf" registration statement that we have filed with the Securities and Exchange Commission (the "SEC"). By using a shelf registration statement, we or any selling stockholder to be named in a prospectus supplement may sell, at any time and from time to time, in one or more offerings, any combination of the securities described in this prospectus. The exhibits to our registration statement contain the full text of certain contracts and other important documents we have summarized in this prospectus. Since these summaries may not contain all the information that you may find important in deciding whether to purchase the securities we or any selling stockholder to be named in a prospectus supplement may offer, you should review the full text of these documents. The registration statement and the exhibits can be obtained from the SEC as indicated under the sections entitled "Where You Can Find More Information" and "Incorporation of Certain Documents by Reference."

        This prospectus only provides you with a general description of the securities we or any selling stockholder may offer. Each time we or any selling stockholder sell securities, we will provide a prospectus supplement that contains specific information about the terms of those securities. The prospectus supplement also may add, update or change information contained in this prospectus. If there is an inconsistency between the information in this prospectus and any prospectus supplement, you should rely on the information in the prospectus supplement. You should read carefully both this prospectus and any prospectus supplement together with the additional information described below under the sections entitled "Where You Can Find More Information" and "Incorporation of Certain Documents by Reference."

        We are not making an offer of these securities in any jurisdiction where the offer is not permitted. You should not assume that the information in this prospectus or a prospectus supplement is accurate as of any date other than the date on the front of the document.

Our Company

        STAG Industrial, Inc. is an industrial real estate operating company focused on the acquisition and operation of single-tenant, industrial properties throughout the United States. As of December 31, 2016, we owned 314 buildings in 37 states with approximately 60.9 million rentable square feet, consisting of 243 warehouse/distribution buildings, 54 light manufacturing buildings, 16 flex/office buildings, and one building in redevelopment. As of December 31, 2016, our buildings were approximately 94.7% leased to 275 tenants.

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        We were incorporated on July 21, 2010 under the laws of the State of Maryland. We are organized and conduct our operations to maintain our qualification as a real estate investment trust ("REIT") under Sections 856 through 859 of the Internal Revenue Code of 1986, as amended (the "Code"). As a REIT, we generally will not be subject to federal income tax on our income to the extent we currently distribute our income to our stockholders and maintain our qualification as a REIT. We are structured as an umbrella partnership REIT, also known as an UPREIT, and own all of our properties and conduct substantially all of our business through our operating partnership. As of December 31, 2016, we owned approximately 95.7% of the common equity of our operating partnership.

        Our principal executive offices are located at One Federal Street, 23rd Floor, Boston, Massachusetts 02110, and our telephone number is (617) 574-4777. Our website is www.stagindustrial.com. However, the information located on, or accessible from, our website is not, and should not be deemed to be, part of this prospectus, any accompanying prospectus supplement or any free writing prospectus or incorporated into any other filing that we submit to the SEC.

Ratios of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Stock Dividends

        The following table sets forth our ratios of earnings to fixed charges and earnings to combined fixed charges and preferred stock dividends for the following periods:

 
  Year
Ended
December 31,
2016
  Year
Ended
December 31,
2015
  Year
Ended
December 31,
2014
  Year
Ended
December 31,
2013
  Year
Ended
December 31,
2012
 

Ratio of earnings to fixed charges

    1.82x   0.20x     0.82x     1.01x     0.52x  

Ratio of earnings to combined fixed charges and preferred stock dividends

    1.38x   0.15x     0.57x     0.69x     0.38x  

        Our ratios of earnings to fixed charges and combined fixed charges and preferred stock dividends are computed by dividing earnings by fixed charges and combined fixed charges and preferred stock dividends, respectively. For these purposes, "earnings" consist of net loss plus fixed charges. Net loss is computed in accordance with U.S. generally accepted accounting principles and includes such non-cash items as real estate depreciation and amortization, amortization of above (below) market rents, net, and amortization of deferred financing costs and loan premium. "Fixed charges" consist of interest expense, an approximation of the interest component of our operating leases, capitalized interest and amortization of deferred financing fees and loan premiums, whether expensed or capitalized and interest within rental expense. Interest income is not included in this computation. "Preferred dividends" consist of the amount of pre-tax earnings required to pay dividends on our preferred stock outstanding during the period.

        The computation of ratio of earnings to fixed charges indicates that earnings were inadequate to cover fixed charges on the basis of our historical financial statements by approximately $29.3 million for the year ended December 31, 2015, $4.7 million for the year ended December 31, 2014, and $7.8 million for the year ended December 31, 2012. The computation of ratio of earnings to combined fixed charges and preferred stock dividends indicates that earnings were inadequate to cover fixed charges and preferred stock dividends on the basis of our historical financial statements by approximately $40.2 million for the year ended December 31, 2015, $15.5 million for the year ended December 31, 2014, $9.4 million for the year ended December 31, 2013, and $14.0 million for the year ended December 31, 2012.

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RISK FACTORS

        Investing in our securities involves risks. Before purchasing the securities offered by this prospectus you should consider carefully the risk factors incorporated by reference in this prospectus from our annual report on Form 10-K for the year ended December 31, 2016 filed with the SEC on February 16, 2017, as well as the risks, uncertainties and additional information (i) set forth in our SEC reports on Forms 10-K, 10-Q and 8-K and in the other documents incorporated by reference in this prospectus that we file with the SEC after the date of this prospectus and which are deemed incorporated by reference in this prospectus, and (ii) the information contained in any applicable prospectus supplement. For a description of these reports and documents, and information about where you can find them, see "Where You Can Find More Information" and "Incorporation of Certain Documents By Reference." The risks and uncertainties we discuss in this prospectus and in the documents incorporated by reference in this prospectus are those that we currently believe may materially affect our company. Additional risks not presently known, or currently deemed immaterial, also could materially and adversely affect our financial condition, results of operations, business and prospects.


CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

        This prospectus, any accompanying prospectus supplement and the documents we incorporate by reference each contain "forward-looking statements" within the meaning of the safe harbor from civil liability provided for such statements by the Private Securities Litigation Reform Act of 1995 (set forth in Section 27A of the Securities Act of 1933, as amended (the "Securities Act") and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act")). Also, documents we subsequently file with the SEC and incorporate by reference will contain forward-looking statements. You can identify forward-looking statements by the use of words such as "anticipates," "believes," "estimates," "expects," "intends," "may," "plans," "projects," "seeks," "should," "will," and variations of such words or similar expressions. Forward-looking statements may include, among others, statements about our future financial condition, results of operations, capitalization rates on future acquisitions, our business strategy and objectives, including our acquisition strategy, occupancy and leasing rates and trends, and expected liquidity needs and sources (including capital expenditures and the ability to obtain financing or raise capital). Our forward-looking statements reflect our current views about our plans, intentions, expectations, strategies and prospects, which are based on the information currently available to us and on assumptions we have made. Although we believe that our plans, intentions, expectations, strategies and prospects as reflected in or suggested by our forward-looking statements are reasonable, we can give no assurance that our plans, intentions, expectations, strategies or prospects will be attained or achieved and you should not place undue reliance on these forward-looking statements. Furthermore, actual results may differ materially from those described in the forward-looking statements and may be affected by a variety of risks and factors including, without limitation:

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        Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise over time, and it is not possible for us to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Accordingly, investors should use caution in relying on past forward-looking statements, which were based on results and trends at the time they were made, to anticipate future results or trends. For a further discussion of these and other factors that could impact our future results, performance or transactions, see the section below entitled "Risk Factors," including the risks incorporated therein from our most recent annual report on Form 10-K, as updated by our future filings.


USE OF PROCEEDS

        Unless we specify otherwise in an accompanying prospectus supplement, we intend to use the net proceeds from the sale of the securities by us to provide additional funds for general corporate purposes, including funding our investment activity, the repayment or refinancing of outstanding indebtedness, working capital and other general purposes. Any specific allocation of the net proceeds of an offering of securities will be determined at the time of such offering and will be described in the accompanying supplement to this prospectus.

        We will not receive any of the proceeds of the sale by any selling stockholder of the securities covered by this prospectus.

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DESCRIPTION OF CAPITAL STOCK

        The following summary of the material terms of our capital stock does not purport to be complete and is subject to and qualified in its entirety by reference to Maryland law and to our charter and bylaws, copies of which are filed as exhibits to the registration statement of which this prospectus forms a part. See "Where You Can Find More Information."

General

        Our charter provides that we may issue 150,000,000 shares of common stock, $0.01 par value per share, and 15,000,000 shares of preferred stock, $0.01 par value per share. Our board of directors, without any action by our stockholders, may amend our charter to increase or decrease the aggregate number of shares of our common stock or the number of shares of our stock of any class or series. As of December 31, 2016, there were 80,352,304 shares of our common stock issued and outstanding, 2,800,000 shares of our 6.625% Series B Cumulative Redeemable Preferred Stock (the "Series B Preferred Stock") issued and outstanding, 3,000,000 shares of our 6.875% Series C Cumulative Redeemable Preferred Stock (the "Series C Preferred Stock") issued and outstanding, 2,057,365 common units in our operating partnership issued and outstanding, and 1,576,516 LTIP units in our operating partnership issued and outstanding.

Common Stock

        Holders of our common stock are entitled to receive dividends or other distributions if and when authorized by our board of directors and declared by us out of assets legally available for the payment of dividends or other distributions. They also are entitled to share ratably in our assets legally available for distribution to our stockholders in the event of our liquidation, dissolution or winding up, after payment of or adequate provision for all of our known debts and liabilities. These rights are subject to the preferential rights of any other class or series of our stock (including the Series B Preferred Stock and the Series C Preferred Stock) and to the provisions of our charter regarding restrictions on transfer and ownership of our stock.

        Subject to the provisions of our charter restricting the transfer and ownership of shares of our stock and except as may otherwise be specified in the terms of any class or series of stock, each outstanding share of common stock entitles the holder to one vote on all matters submitted to a vote of stockholders, including the election of directors, and, except as provided with respect to any other class or series of shares of our stock (including the Series B Preferred Stock and the Series C Preferred Stock), the holders of our common stock possess exclusive voting power. There is no cumulative voting in the election of directors, which means that the holders of a majority of the outstanding shares of common stock, voting as a single class, may elect all of the directors then standing for election other than any preferred stock directors.

        Holders of our common stock generally have no appraisal, preference, conversion, exchange, sinking fund or redemption rights and have no preemptive rights to subscribe for any of our securities. Subject to the restrictions on transfer of capital stock contained in our charter, all shares of common stock have equal dividend, liquidation and other rights.

        Pursuant to our charter, we cannot dissolve, amend our charter, merge, sell all or substantially all of our assets, engage in a share exchange or engage in similar transactions outside the ordinary course of business unless declared advisable by our board of directors and approved by the affirmative vote of stockholders holding at least a majority of all the votes entitled to be cast on the matter, except for amendments to our charter that would alter only the contract rights, as expressly set forth in the charter, of a specified class or series of stock with respect to which the holders of such class or series of stock has exclusive voting rights as provided in our charter.

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        Maryland law permits the merger of a 90% or more owned subsidiary with or into its parent without stockholder approval provided the charter of the successor is not amended other than in certain minor respects and the contract rights of any stock of the successor issued in the merger in exchange for stock of the other corporation are identical to the contract rights of the stock for which it is exchanged. Also, because Maryland law may not require the stockholders of a parent corporation to approve a merger or sale of all or substantially all of the assets of a subsidiary entity, our subsidiaries may be able to merge or sell all or substantially all of their assets without a vote of our stockholders.

Preferred Stock

        Our board of directors may authorize the issuance of preferred stock in one or more series and may determine, with respect to any such series, the rights, preferences, privileges and restrictions of the preferred stock of that series, including:

        The preferred stock we may offer from time to time under this prospectus, when issued, will be duly authorized, fully paid and nonassessable, and holders of preferred stock will not have any preemptive rights.

        The issuance of preferred stock could have the effect of delaying, deferring or preventing a change in control or other transaction that might involve a premium price for our common stock or otherwise be in the best interests of our stockholders. In addition, any preferred stock that we issue could rank senior to our common stock with respect to the payment of distributions, in which case we could not pay any distributions on our common stock until full distributions have been paid with respect to such preferred stock.

        The rights, preferences, privileges and restrictions of each series of preferred stock will be fixed by articles supplementary relating to the series. We will describe the specific terms of the particular series of preferred stock in the prospectus supplement relating to that series, which terms will include:

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        As of December 31, 2016, there were 2,800,000 shares of the Series B Preferred Stock, with a liquidation preference of $25.00 per share, issued and outstanding. We pay cumulative dividends on the Series B Preferred Stock, when and as authorized by our board of directors, at a rate of 6.625% per annum of the $25.00 liquidation preference per share (equivalent to the fixed annual rate of $1.65625 per share). Dividends on the Series B Preferred Stock are payable quarterly in arrears on or about the last day of March, June, September and December of each year. The Series B Preferred Stock ranks senior to our common stock and on parity with the Series C Preferred Stock with respect to dividend rights and rights upon our liquidation, dissolution or winding up. Generally, we are not permitted to redeem the Series B Preferred Stock prior to April 16, 2018, except in limited circumstances relating to our ability to qualify as a REIT and in certain other circumstances related to a change of control (as defined in the articles supplementary). If we do not exercise our right to redeem the Series B Preferred Stock upon such a change of control, the holders of Series B Preferred Stock have the right to convert some or all of their shares into a number of shares of our common stock based on a defined formula subject to a cap. The Series B Preferred Stock has no stated maturity and is not subject to mandatory redemption or any sinking fund. Holders of shares of the Series B Preferred Stock will generally have no voting rights except for limited voting rights if we fail to pay dividends for six or more quarterly periods (whether or not consecutive) and in certain other circumstances.

        As of December 31, 2016, there were 3,000,000 shares of the Series C Preferred Stock, with a liquidation preference of $25.00 per share, issued and outstanding. We pay cumulative dividends on the Series C Preferred Stock, when and as authorized by our board of directors, at a rate of 6.875% per annum of the $25.00 liquidation preference per share (equivalent to the fixed annual rate of $1.71875 per share). Dividends on the Series C Preferred Stock are payable quarterly in arrears on or about the last day of March, June, September and December of each year. The Series C Preferred Stock ranks senior to our common stock and on parity with the Series B Preferred Stock with respect to dividend rights and rights upon our liquidation, dissolution or winding up. Generally, we are not permitted to redeem the Series C Preferred Stock prior to March 17, 2021, except in limited circumstances relating to our ability to qualify as a REIT and in certain other circumstances related to a change of control (as defined in the articles supplementary). If we do not exercise our right to redeem the Series C Preferred Stock upon such a change of control, the holders of Series C Preferred Stock have the right to convert some or all of their shares into a number of shares of our common stock based on a defined formula subject to a cap. The Series C Preferred Stock has no stated maturity and is not subject to mandatory

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redemption or any sinking fund. Holders of shares of the Series C Preferred Stock will generally have no voting rights except for limited voting rights if we fail to pay dividends for six or more quarterly periods (whether or not consecutive) and in certain other circumstances.

Power to Reclassify Shares of Our Stock

        Our charter authorizes our board of directors to reclassify any unissued shares of stock into any class or series of stock, including preferred stock, to classify any unissued shares of common stock or preferred stock or to reclassify any previously classified but unissued shares of any series of preferred stock previously authorized by our board of directors. Prior to issuance of shares of each class or series of preferred stock, our board of directors is required by Maryland law and our charter to fix, subject to our charter restrictions on transfer and ownership, the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms or conditions of redemption for each class or series of preferred stock. Thus, our board of directors could authorize the issuance of shares of common stock with terms and conditions, or preferred stock with priority over our existing common stock with respect to distributions and rights upon liquidation or with other terms and conditions that could have the effect of delaying, deferring or preventing a transaction or a change of control of our company that might involve a premium price for you or otherwise be in your best interest.

Power to Increase and Issue Additional Shares of Common Stock and Preferred Stock

        We believe that the power of our board of directors to amend our charter to increase the aggregate number of shares of our authorized stock or the number of shares of stock of any class or series, to issue additional shares of common stock or preferred stock and to classify or reclassify unissued shares of our common stock or preferred stock and thereafter to issue the classified or reclassified shares of stock provides us with increased flexibility in structuring possible future financings and acquisitions and in meeting other needs which might arise. Subject to the right of holders of Series B Preferred Stock and Series C Preferred Stock to approve the classification or issuance of shares of a class or series of our stock ranking senior to the Series B Preferred Stock and the Series C Preferred Stock, the additional classes or series, as well as our common stock, are available for issuance without further action by our stockholders, unless stockholder action is required by applicable law or the rules of any stock exchange on which our securities may be listed.

Restrictions on Ownership and Transfer of Stock

        Our charter provides that our board of directors may decide whether it is in the best interests of our company to maintain our status as a REIT under the Code. To qualify as a REIT under the Code, our shares of stock must be beneficially owned by 100 or more persons during at least 335 days of a taxable year of 12 months or during a proportionate part of a shorter taxable year. Also, no more than 50% of the value of our outstanding shares of capital stock may be owned, directly or indirectly, by five or fewer individuals (as defined by the Code to include certain entities) during the last half of any taxable year.

        To help us to qualify as a REIT, our charter, subject to certain exceptions, contains restrictions on the number and proportionate value of shares of our capital stock that a person may own. Our charter provides that generally no person may own, or be deemed to own by virtue of the attribution provisions of the Code, either more than 9.8% in value or in number of shares, whichever is more restrictive, of the aggregate of our outstanding shares of capital stock, or more than 9.8% in value or in number of shares, whichever is more restrictive, of the aggregate of our outstanding common stock. In addition, the articles supplementary for the Series B Preferred Stock and the Series C Preferred Stock provide that generally no person may own, or be deemed to own by virtue of the attribution provisions of the Code, more than 9.8% in value or in number of shares, whichever is more restrictive, of our

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outstanding Series B Preferred Stock or Series C Preferred Stock, respectively. The beneficial ownership and/or constructive ownership rules under the Code are complex and may cause shares of our capital stock owned actually or constructively by a group of related individuals and/or entities to be owned constructively by one individual or entity.

        Our charter also prohibits any person from:

        Any person who acquires, attempts or intends to acquire beneficial or constructive ownership of shares of our capital stock that will or may violate any of the foregoing restrictions on transferability and ownership, and any person who would have owned shares of our capital stock that resulted in a transfer of shares to a charitable trust (as described below), will be required to give written notice immediately to us, or in the case of a proposed or attempted transaction, to give at least 15 days' prior written notice to us, and provide us with such other information as we may request in order to determine the effect of such transfer on our status as a REIT. The foregoing restrictions on transferability and ownership will not apply if our board of directors determines that it is no longer in our best interests to continue to qualify as a REIT.

        Our board of directors, in its sole discretion, may exempt a person from the above ownership limits and certain of the restrictions described above. However, the board of directors may not grant an exemption to any person unless the board of directors obtains such representations, covenants and undertakings as the board of directors may deem appropriate in order to determine that granting the exemption would not result in our losing our status as a REIT. As a condition of granting the exemption, our board of directors may require a ruling from the Internal Revenue Service (the "IRS") or an opinion of counsel, in either case in form and substance satisfactory to the board of directors in its sole discretion, in order to determine or ensure our status as a REIT.

        Our board of directors may increase or decrease the ownership limits so long as the change would not result in five or fewer persons beneficially owning more than 49.9% in value of our outstanding capital stock. Any decrease in the ownership limits shall not apply to any person whose percentage ownership of capital stock is in excess of the decreased ownership limits until such time as such person's percentage ownership of capital stock equals or falls below the decreased ownership limits.

        However, if any transfer of our shares of stock or other event occurs that, if effective, would result in any person beneficially or constructively owning shares of our capital stock in excess, or in violation, of the above ownership or transfer limitations, referred to as a prohibited owner, then that number of shares of our capital stock, the beneficial or constructive ownership of which otherwise would cause such person to violate the transfer or ownership limitations (rounded up to the nearest whole share), will be automatically transferred to a charitable trust for the exclusive benefit of a charitable beneficiary, and the prohibited owner will not acquire any rights in such shares. This automatic transfer

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will be considered effective as of the close of business on the business day before the violative transfer. If the transfer to the charitable trust would not be effective for any reason to prevent the violation of the above transfer or ownership limitations, then the transfer of that number of shares of our capital stock that otherwise would cause any person to violate the above limitations will be void ab initio and the intended transferee will acquire no rights in our capital stock. Shares of our capital stock held in the charitable trust will continue to constitute issued and outstanding shares of our capital stock. The prohibited owner will not benefit economically from ownership of any shares of capital stock held in the charitable trust, will have no rights to dividends or other distributions and will not possess any rights to vote or other rights attributable to the shares of capital stock held in the charitable trust. The trustee of the charitable trust will be designated by us and must be unaffiliated with us or any prohibited owner and will have all voting rights and rights to dividends or other distributions with respect to shares of capital stock held in the charitable trust, and these rights will be exercised for the exclusive benefit of the trust's charitable beneficiary. Any dividend or other distribution paid before our discovery that shares of capital stock have been transferred to the trustee will be paid by the recipient of such dividend or distribution to the trustee upon demand, and any dividend or other distribution authorized but unpaid will be paid when due to the trustee. Any dividend or distribution so paid to the trustee will be held in trust for the trust's charitable beneficiary. The prohibited owner will have no voting rights with respect to shares of capital stock held in the charitable trust, and, subject to Maryland law, effective as of the date that such shares of capital stock have been transferred to the trustee, the trustee, in its sole discretion, will have the authority to:

However, if we have already taken irreversible corporate action, then the trustee will not have the authority to rescind and recast such vote.

        Within 20 days of receiving notice from us that shares of capital stock have been transferred to the charitable trust, and unless we buy the shares first as described below, the trustee will sell the shares of capital stock held in the charitable trust to a person, designated by the trustee, whose ownership of the shares will not violate the ownership limitations in our charter. Upon the sale, the interest of the charitable beneficiary in the shares sold will terminate and the trustee will distribute the net proceeds of the sale to the prohibited owner and to the charitable beneficiary. The prohibited owner will receive the lesser of:

        The trustee may reduce the amount payable to the prohibited owner by the amount of dividends and distributions paid to the prohibited owner and owed by the prohibited owner to the trustee. Any net sale proceeds in excess of the amount payable to the prohibited owner will be paid immediately to the charitable beneficiary. If, before our discovery that shares of capital stock have been transferred to the charitable trust, such shares are sold by a prohibited owner, then:

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        In addition, shares of capital stock held in the charitable trust will be deemed to have been offered for sale to us, or our designee, at a price per share equal to the lesser of:

        We may reduce the amount payable to the prohibited owner by the amount of dividends and distributions paid to the prohibited owner and owed by the prohibited owner to the trustee. We will pay the amount of such reduction to the trustee for the benefit of the charitable beneficiary. We will have the right to accept the offer until the trustee has sold the shares of capital stock held in the charitable trust. Upon such a sale to us, the interest of the charitable beneficiary in the shares sold will terminate and the trustee will distribute the net proceeds of the sale to the prohibited owner and any dividends or other distributions held by the trustee will be paid to the charitable beneficiary.

        All certificates representing shares of our capital stock will bear a legend referring to the restrictions described above.

        Every owner of more than 5% (or such lower percentage as required by the Code or the regulations promulgated thereunder) in value of the outstanding shares of our capital stock, within 30 days after the end of each taxable year, must give written notice to us stating the name and address of such owner, the number of shares of each class and series of shares of our capital stock that the owner beneficially owns and a description of the manner in which the shares are held. Each such owner must also provide to us such additional information as we may request in order to determine the effect, if any, of the owner's beneficial ownership on our status as a REIT and to ensure compliance with our ownership limitations. In addition, each of our stockholders, whether or not an owner of 5% or more of our capital stock, must upon demand provide to us such information as we may request, in good faith, in order to determine our status as a REIT and to comply with the requirements of any taxing authority or governmental authority or to determine such compliance and to ensure our compliance with the ownership restrictions in our charter.

        The ownership and transfer limitations in our charter could delay, defer or prevent a transaction or a change in control of us that might involve a premium price for holders of our capital stock or might otherwise be in the best interest of our stockholders.

Stock Exchange Listings

        Our common stock is listed on the NYSE under the symbol "STAG." The Series B Preferred Stock and the Series C Preferred Stock are listed on the NYSE under the symbols "STAG Pr B" and "STAG Pr C," respectively.

Transfer Agent and Registrar

        The transfer agent and registrar for our common stock, the Series B Preferred Stock and the Series C Preferred Stock is Continental Stock Transfer & Trust Company.

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DESCRIPTION OF DEBT SECURITIES

        The following description sets forth certain general terms and provisions of the senior debt securities that may be offered by means of this prospectus. The particular terms of the debt securities being offered and the extent to which the general provisions described below apply will be described in a prospectus supplement relating to the debt securities.

        Any senior debt securities offered by means of this prospectus will be issued under a senior indenture, as amended or supplemented from time to time (the "Indenture"), between us and such trustee as we may appoint. A form of the Indenture has been filed as an exhibit to the registration statement of which this prospectus is a part and will be available for inspection at the corporate trust office of the trustee (as defined below) or as described above under "Where You Can Find More Information" and "Incorporation of Certain Documents by Reference."

        The Indenture is and will be subject to and governed by the Trust Indenture Act of 1939, as amended. The description of the Indenture set forth below assumes that we have entered into the Indenture. We will execute and deliver the Indenture when and if we issue debt securities. The statements made in this prospectus relating to the Indenture and the debt securities to be issued under the Indenture are summaries of some provisions of the Indenture and such debt securities. The summaries do not purport to be complete and are subject to, and are qualified in their entirety by reference to, all provisions of the Indenture and such debt securities.

General

        The debt securities offered by means of this prospectus will be our direct obligations. Senior debt securities will rank equally in right of payment with our other senior unsecured and unsubordinated debt that may be outstanding from time to time, and will rank senior in right of payment to all of any subordinated debt securities that may be outstanding from time to time.

        The Indenture provides that debt securities may be issued without limit as to aggregate principal amount, in one or more series, in each case as may be authorized from time to time by us or as established in one or more indentures supplemental to the Indenture. All debt securities of one series need not be issued at the same time and, unless otherwise provided, a series may be reopened, without the consent of the holders of the debt securities of such series, for issuances of additional debt securities of such series.

        The Indenture provides that there may be more than one trustee thereunder, each with respect to one or more series of debt securities (each, a "trustee"). Any trustee under the Indenture may resign or be removed with respect to one or more series of debt securities, and a successor trustee will be appointed by us to act with respect to such series. If two or more persons are acting as trustee with respect to different series of debt securities, each such trustee will be a trustee of a trust under the Indenture separate and apart from the trust administered by any other trustee thereunder, and, except as otherwise indicated herein or therein, any action described to be taken by the trustee may be taken by each such trustee with respect to, and only with respect to, the one or more series of debt securities for which it is trustee under the Indenture.

        The prospectus supplement relating to any series of debt securities being offered will contain information on the specific terms of those debt securities, including, without limitation:

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        The debt securities may be issued in one or more series with the same or various maturities.

        The terms of the debt securities do not afford holders of the debt securities protection in the event of a highly leveraged transaction involving us that may adversely affect holders of the debt securities.

Conversion and Exchange Rights

        The prospectus supplement will describe, if applicable, the terms on which you may convert the debt securities into or exchange them for other debt securities, preferred stock, common stock or other securities or property (including cash or any combination thereof). The conversion or exchange may be mandatory or may be at your option. The prospectus supplement will describe how the amount of debt securities, number of shares of preferred stock or common stock, or the amount of other securities or property to be received upon conversion or exchange would be calculated.

Transfer and Exchange

        The debt securities of a series may be issued in either registered form ("registered securities") or global form. Registered securities may be separated into smaller denominations or combined into larger denominations, as long as the total principal amount is not changed. This is called an "exchange."

        In accordance with the Indenture, you may transfer or exchange debt securities of a series at the office of the trustee. The trustee will act as our agent for registering registered securities in the names of holders and transferring debt securities. We may designate someone else to perform these functions. Whoever maintains the list of registered holders is called the "security registrar." The security registrar also will perform transfers.

        You will not be required to pay a service charge to transfer or exchange debt securities, but you may be required to pay for any tax or other governmental charge associated with the exchange or transfer. The transfer or exchange will be made only if the security registrar is satisfied with your proof of ownership.

        If we designate additional transfer agents, we will name them in the applicable prospectus supplement. We may cancel the designation of any particular transfer agent. We may also approve a change in the office through which any transfer agent acts.

        If we redeem less than all of the debt securities of a redeemable series, we may block the transfer or exchange of registered securities during the period beginning 15 days before the day of the selection for redemption of such registered securities and ending on the day of the mailing of the relevant notice of redemption in order to freeze the list of holders to prepare the mailing. We may also decline to register transfers or exchanges of debt securities selected for redemption, except that we will continue to permit transfers and exchanges of the unredeemed portion of any debt security being partially redeemed.

        If the offered debt securities are redeemable, we will describe the procedures for redemption in the applicable prospectus supplement.

        In this "—Transfer and Exchange" section of this prospectus, "you" means direct holders and not indirect holders of debt securities.

Merger and Consolidation

        Subject to any terms or conditions specified in the applicable prospectus supplement, so long as any debt securities of any series remain outstanding, we may not merge, consolidate or convey, transfer or lease our properties and assets substantially as an entirety and we will not permit any person to

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consolidate with or merge into us or convey, transfer or lease its properties and assets substantially as an entirety to us unless:

Certain of our Covenants

        In addition to any covenants with respect to a particular series of debt securities as may be described in the applicable prospectus supplement, we will be subject to the following covenants:

        Corporate Existence.    Except as described above under "—Merger and Consolidation," we will be required to do or cause to be done all things necessary to preserve and keep in full force and effect our legal existence, rights (by charter or statutory) and franchises. However, we will not be required to preserve any right or franchise if we determine that its preservation is no longer desirable in the conduct of our business.

        Maintenance of Properties.    We will be required to cause all our properties used or useful in the conduct of our business or the business of any of our subsidiaries to be maintained and kept in good condition, repair and working order, normal wear and tear excepted, and supplied with all necessary equipment and will be required to cause to be made all necessary repairs, renewals, replacements, betterments and improvements thereof, as in our judgment may be necessary so that the business carried on in connection with these properties may be conducted at all times. However, we will not be prevented from (i) removing permanently any property that has been condemned or suffered a casualty loss, if, in our reasonable judgment, such removal is in our best interest and is not disadvantageous in any material respect to the holders of the debt securities, (ii) discontinuing the maintenance of any properties if such discontinuance is, in our judgment, desirable in the conduct of our business or the business of any of our subsidiaries and is not disadvantageous in any material respect to holders of the debt securities, or (iii) selling or otherwise disposing for value our properties in the ordinary course of business consistent with the terms of the Indenture .

        Payment of Taxes and Other Claims.    We will be required to pay or discharge, or cause to be paid or discharged, before they become delinquent:

However, we will not be required to pay or discharge or cause to be paid or discharged any tax, assessment, charge or claim the amount, applicability or validity of which is being contested in good faith.

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        Except as described above, or as otherwise described in the applicable prospectus supplement, the Indenture does not contain any provisions that would afford holders of the debt securities protection in the event of:

        In addition, subject to the limitations set forth above and in the applicable prospectus supplement, we may, in the future, enter into certain transactions such as the sale of our properties and assets substantially as an entirety or a merger or consolidation with another entity that could increase the amount of our indebtedness or otherwise adversely affect our financial condition or results of operations, which may have an adverse effect on our ability to service our indebtedness, including the debt securities. We have no present intention of engaging in a highly leveraged or similar transaction involving us.

Events of Default

        Unless otherwise provided in the applicable prospectus supplement, an event of default with respect to the debt securities is defined in the Indenture as being:

        Unless otherwise provided in the applicable prospectus supplement, the Indenture provides that if an event of default under clause (1), (2), (3) or (5) above shall have occurred and be continuing, either the trustee or the holders of not less than 25% in principal amount of the debt securities may declare the principal of all the debt securities, together with any accrued interest, to be due and payable immediately.

        Unless otherwise provided in the applicable prospectus supplement, if an event of default under clause (4) above shall have occurred and be continuing, then the principal of all the debt securities, together with any accrued interest, will be due and payable immediately without any declaration or other act on the part of the trustee or any holder of a debt security. Upon certain conditions such declaration (including a declaration caused by a default in the payment of principal or interest, the payment for which has subsequently been provided) may be annulled by the holders of a majority in principal amount of the debt securities.

        In addition, subject to any terms or conditions specified in the applicable prospectus supplement, prior to the declaration of the acceleration of the maturity of the debt securities, past defaults may be waived by the holders of a majority in principal amount of the debt securities, except a default in the payment of principal of or interest on any debt security or in respect of a covenant or provision of the Indenture which cannot be modified or amended without the approval of the holder of each debt security.

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        The Indenture contains a provision entitling the trustee, subject to the duty of the trustee during default to act with the required standard of care, to be indemnified by the holders of debt securities issued thereunder before proceeding to exercise any right or power under the Indenture at the request of the holders of such debt securities.

        The Indenture also provides that the holders of a majority in principal amount of the outstanding securities of a particular series issued thereunder and affected (each series voting as a separate class) may direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the debt securities of such series.

        The Indenture contains a covenant that we will file annually with the trustee a certificate as to the absence of any default or specifying any default that exists.

Satisfaction and Discharge

        The Indenture provides that, if the provisions of the relevant article of the Indenture are made applicable to the debt securities of (or within) any series pursuant to such Indenture, the Indenture will cease to be of further effect (except as to surviving rights of registration of transfer or exchange of debt securities, as expressly provided for in the Indenture) as to all debt securities of such series when:

Defeasance and Covenant Defeasance

        The Indenture provides that, if the provisions of the relevant article of the Indenture are made applicable to the debt securities of (or within) any series pursuant to the Indenture, we may elect either (1) to effect a "defeasance," in which case we will be discharged from any and all obligations with respect to such debt securities (except for the obligations to register the transfer or exchange of such debt securities, to replace temporary or mutilated, destroyed, lost or stolen debt securities, to maintain an office or agency in respect of such debt securities and to hold moneys for payment in trust), or (2) to effect a "covenant defeasance," in which case we will be released from our obligations with

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respect to the covenants described under "—Certain of our Covenants" or, if provided pursuant to the Indenture, our obligations with respect to any other covenant, and any omission to comply with such obligations will not constitute a default or an Event of Default with respect to such debt securities. Such defeasance or covenant defeasance shall be effected upon the irrevocable deposit by us with the applicable trustee, in trust, of an amount, in such currency or currencies in which such debt securities are payable at their stated maturity, or government obligations (as described below), or both, applicable to such debt securities which through the scheduled payment of principal and interest in accordance with their terms will provide money in an amount sufficient to pay the principal of (and premium, if any) and interest on such debt securities, and any mandatory sinking fund or analogous payments thereon, on the scheduled due dates therefor.

        Such a trust may be established only if, among other things, we have delivered to the applicable trustee an opinion of counsel (as specified in the Indenture) to the effect that the holders of such debt securities will not recognize income, gain or loss for federal income tax purposes as a result of such defeasance or covenant defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance or covenant defeasance had not occurred.

        The Indenture defines "government obligations" to mean securities that are (i) direct obligations of the government which issued the currency in which the securities of a particular series are payable or (ii) obligations of a person controlled or supervised by and acting as an agency or instrumentality of the government that issued the currency in which the securities of such series are payable, the payment of which is unconditionally guaranteed by such government, which, in either case, are full faith and credit obligations of such government payable in such currency and are not callable or redeemable at the option of the issuer thereof.

        Unless otherwise provided in the applicable supplemental indenture relating to any series of debt securities, if after we have deposited funds or government obligations to effect defeasance or covenant defeasance with respect to debt securities of any series the holder of a debt security of such series is entitled to, and does, elect pursuant to the Indenture or the terms of such debt security to receive payment in a currency other than that in which such deposit has been made in respect of such debt security, the indebtedness represented by such debt security and any coupons appertaining thereto shall be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of (and premium, if any) and interest, if any, on such debt security as they become due out of the proceeds yielded by converting the amount or other property so deposited in respect of such debt security into the currency in which such debt security becomes payable as a result of such election based on the applicable market exchange rate. Unless otherwise provided in the applicable prospectus supplement, all payments of principal of (and premium, if any) and interest on any debt security that is payable in a foreign currency that ceases to be used by its government of issuance shall be made in U.S. dollars. If we effect a covenant defeasance with respect to any debt securities and such debt securities are declared due and payable because of the occurrence of an event of default, the amount in such currency in which such debt securities are payable, and government obligations on deposit with the applicable trustee, will be sufficient to pay amounts due on such debt securities at the time of their stated maturity but may not be sufficient to pay amounts due on such debt securities at the time of the acceleration resulting from such event of default. We, however, would remain liable to make payment of such amounts due at the time of acceleration.

        The applicable prospectus supplement may further describe the provisions, if any, permitting such defeasance or covenant defeasance, including any modifications to the provisions described above, with respect to the debt securities of or within a particular series.

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Modification and Waiver

        Unless otherwise specified in the applicable prospectus supplement, modifications and amendments of the Indenture will be permitted only with the consent of the holders of not less than a majority in principal amount of all outstanding debt securities issued under the Indenture which are affected by such modification or amendment. However, no such modification or amendment may, without the consent of the holder of each such debt security affected by the modification or amendment:

        Unless otherwise specified in the applicable prospectus supplement, modifications and amendments of the Indenture may be made by us and the respective trustee without the consent of any holder of debt securities for any of the following purposes:

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Global Securities

        The debt securities of a series may be issued in whole or in part in the form of one or more global securities that will be deposited with, or on behalf of, a depository identified in the applicable prospectus supplement relating to such series. Global securities may be issued in either registered or bearer form and in either temporary or permanent form. The specific terms of the depository arrangement with respect to a series of debt securities will be described in the applicable prospectus supplement relating to such series.

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DESCRIPTION OF DEPOSITARY SHARES

General

        We may issue depositary shares, each of which would represent a fractional interest of a share of a particular series of preferred stock. We will deposit shares of preferred stock represented by depositary shares under a separate deposit agreement among us, a preferred stock depositary and the holders of the depositary shares. Subject to the terms of the deposit agreement, each owner of a depositary share will possess, in proportion to the fractional interest of a share of preferred stock represented by the depositary share, all the rights and preferences of the preferred stock represented by the depositary shares.

        Depositary receipts will evidence the depositary shares issued pursuant to the deposit agreement. Immediately after we issue and deliver preferred stock to a preferred stock depositary, the preferred stock depositary will issue the depositary receipts.

Dividends and Other Distributions

        The depositary will distribute all cash dividends on the preferred stock to the record holders of the depositary shares. Holders of depositary shares generally must file proofs, certificates and other information and pay charges and expenses of the depositary in connection with distributions.

        If a distribution on the preferred stock is other than in cash and it is feasible for the depositary to distribute the property it receives, the depositary will distribute the property to the record holders of the depositary shares. If such a distribution is not feasible and we approve, the depositary may sell the property and distribute the net proceeds from the sale to the holders of the depositary shares.

Withdrawal of Stock

        Unless we have previously called the underlying preferred stock for redemption or the holder of the depositary shares has converted such shares, a holder of depositary shares may surrender them at the corporate trust office of the depositary in exchange for whole or fractional shares of the underlying preferred stock together with any money or other property represented by the depositary shares. Once a holder has exchanged the depositary shares, the holder may not redeposit the preferred stock and receive depositary shares again. If a depositary receipt presented for exchange into preferred stock represents more shares of preferred stock than the number to be withdrawn, the depositary will deliver a new depositary receipt for the excess number of depositary shares.

Redemption of Depositary Shares

        Whenever we redeem shares of preferred stock held by a depositary, the depositary will redeem the corresponding amount of depositary shares. The redemption price per depositary share will be equal to the applicable fraction of the redemption price and any other amounts payable with respect to the preferred stock. If we intend to redeem less than all of the underlying preferred stock, our company and the depositary will select the depositary shares to be redeemed as nearly pro rata as practicable without creating fractional depositary shares or by any other equitable method determined by us that preserves our REIT status.

        On the redemption date:

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Voting of the Preferred Stock

        When a depositary receives notice regarding a meeting at which the holders of the underlying preferred stock have the right to vote, it will mail that information to the holders of the depositary shares. Each record holder of depositary shares on the record date then may instruct the depositary to exercise its voting rights for the amount of preferred stock represented by that holder's depositary shares. The depositary will vote in accordance with these instructions. The depositary will abstain from voting to the extent it does not receive specific instructions from the holders of depositary shares. A depositary will not be responsible for any failure to carry out any instruction to vote, or for the manner or effect of any vote, as long as any action or non-action is in good faith and does not result from negligence or willful misconduct of the depositary.

Liquidation Preference

        In the event of our liquidation, dissolution or winding up, a holder of depositary shares will receive the fraction of the liquidation preference accorded each share of underlying preferred stock represented by the depositary share.

Conversion of Preferred Stock

        Depositary shares will not themselves be convertible into our common stock or any other securities or property of our company. However, if the underlying preferred stock is convertible, holders of depositary shares may surrender them to the depositary with written instructions to convert the preferred stock represented by their depositary shares into whole shares of common stock, other shares of our preferred stock or other shares of stock, as applicable. Upon receipt of these instructions and any amounts payable in connection with a conversion, we will convert the preferred stock using the same procedures as those provided for delivery of preferred stock. If a holder of depositary shares converts only part of its depositary shares, the depositary will issue a new depositary receipt for any depositary shares not converted. We will not issue fractional shares of common stock upon conversion. If a conversion will result in the issuance of a fractional share, we will pay an amount in cash equal to the value of the fractional interest based upon the closing price of the common stock on the last business day prior to the conversion.

Amendment and Termination of a Deposit Agreement

        Our company and the depositary may amend any form of depositary receipt evidencing depositary shares and any provision of a deposit agreement. However, unless the existing holders of at least two-thirds of the applicable depositary shares then outstanding have approved the amendment, we may not make any amendment that:

        Subject to exceptions in the deposit agreement and except in order to comply with the law, no amendment may impair the right of any holders of depositary shares to surrender their depositary shares with instructions to deliver the underlying preferred stock and all money and other property represented by the depositary shares. Every holder of outstanding depositary shares at the time any

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amendment becomes effective who continues to hold the depositary shares will be deemed to consent and agree to the amendment and to be bound by the amended deposit agreement.

        We may terminate a deposit agreement upon not less than 30 days' prior written notice to the depositary if:

        Upon a termination of a deposit agreement, holders of the depositary shares may surrender their depositary shares and receive in exchange the number of whole or fractional shares of preferred stock and any other property represented by the depositary shares. If we terminate a deposit agreement to preserve our status as a REIT, then we will use our best efforts to list the preferred stock issued upon surrender of the related depositary shares on a national securities exchange.

        In addition, a deposit agreement will automatically terminate if:

Charges of a Preferred Stock Depositary

        We will pay all transfer and other taxes and governmental charges arising in connection with a deposit agreement. In addition, we generally will pay the fees and expenses of a depositary in connection with the performance of its duties. However, holders of depositary shares will pay the fees and expenses of a depositary for any duties requested by the holders that the deposit agreement does not expressly require the depositary to perform.

Resignation and Removal of Depositary

        A depositary may resign at any time by delivering to us notice of its election to resign. We also may remove a depositary at any time. Any resignation or removal will take effect upon the appointment of a successor depositary. We will appoint a successor depositary within 60 days after delivery of the notice of resignation or removal. The successor must be a bank or trust company with its principal office in the United States and have a combined capital and surplus of at least $50 million.

Miscellaneous

        The depositary will forward to the holders of depositary shares any reports and communications from us with respect to the underlying preferred stock.

        Neither the depositary nor our company will be liable if any law or any circumstances beyond its control prevent or delay it from performing its obligations under a deposit agreement. The obligations of our company and a depositary under a deposit agreement will be limited to performance of duties in good faith and without negligence (in the case of any action or inaction in the voting of preferred stock represented by depositary shares), gross negligence or willful misconduct. Neither the company nor a depositary must prosecute or defend any legal proceeding with respect to any depositary shares or the underlying preferred stock unless it is furnished with satisfactory indemnity.

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        Our company and any depositary may rely on the written advice of counsel or accountants, or information provided by persons presenting shares of preferred stock for deposit, holders of depositary shares or other persons they believe in good faith to be competent, and on documents they believe in good faith to be genuine and signed by a proper party.

        In the event a depositary receives conflicting claims, requests or instructions from our company and any holders of depositary shares, the depositary will be entitled to act on the claims, requests or instructions received from us.

Depositary

        The prospectus supplement will identify the depositary for the depositary shares.

Listing of the Depositary Shares

        The prospectus supplement will specify whether or not the depositary shares will be listed on any securities exchange.

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DESCRIPTION OF WARRANTS

        We may issue warrants for the purchase of our common stock or preferred stock. Warrants may be issued independently or together with any of the other securities offered by this prospectus that are offered by any prospectus supplement and may be attached to or separate from the securities offered by this prospectus. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and a warrant agent specified in the applicable prospectus supplement. The warrant agent will act solely as our agent in connection with the warrants of such series and will not assume any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. The statements made in this section relating to the warrants are summaries only. These summaries are not complete. When we issue warrants, we will provide the specific terms of the warrants in a prospectus supplement. To the extent the information contained in the prospectus supplement differs from this summary description, you should rely on the information in the prospectus supplement.

        The applicable prospectus supplement will describe the terms of the warrants in respect of which this prospectus is being delivered, including, where applicable, the following:

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DESCRIPTION OF RIGHTS

        We may issue rights to our stockholders to purchase shares of our common stock or other securities. Each series of rights will be issued under a separate rights agreement to be entered into between us and a bank or trust company, as rights agent. The rights agent will act solely as our agent in connection with the certificates relating to the rights of the series of certificates and will not assume any obligation or relationship of agency or trust for or with any holders of rights certificates or beneficial owners of rights. The statements made in this section relating to the rights are summaries only. These summaries are not complete. When we issue rights, we will provide the specific terms of the rights and the applicable rights agreement in a prospectus supplement. To the extent the information contained in the prospectus supplement differs from this summary description, you should rely on the information in the prospectus supplement. For more detail, we refer you to the applicable rights agreement itself, which we will file as an exhibit to, or incorporate by reference in, the registration statement.

        The applicable prospectus supplement will describe the terms of the rights in respect of which this prospectus is being delivered, including, where applicable, the following:

Exercise of Rights

        Each right will entitle the holder of rights to purchase for cash the principal amount of shares of our common stock or other securities at the exercise price provided in the applicable prospectus supplement. Rights may be exercised at any time up to the close of business on the expiration date for the rights provided in the applicable prospectus supplement. After the close of business on the expiration date, all unexercised rights will be void.

        Holders may exercise rights as described in the applicable prospectus supplement. Upon receipt of payment and the rights certificate properly completed and duly executed at the corporate trust office of the rights agent or any other office indicated in the prospectus supplement, we will, as soon as practicable, forward the shares of common stock or other securities purchasable upon exercise of the rights. If less than all of the rights issued in any rights offering are exercised, we may offer any unsubscribed securities directly to persons other than stockholders, to or through agents, underwriters or dealers or through a combination of such methods, including pursuant to standby underwriting arrangements, as described in the applicable prospectus supplement.

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DESCRIPTION OF UNITS

        We may issue units consisting of two or more other constituent securities. These units may be issuable, and for a specified period of time may be transferable, as a single security only, rather than as the separate constituent securities comprising such units. The statements made in this section relating to the units are summaries only. These summaries are not complete. When we issue units, we will provide the specific terms of the units in a prospectus supplement. To the extent the information contained in the prospectus supplement differs from this summary description, you should rely on the information in the prospectus supplement.

        The applicable prospectus supplement will describe the terms of the units in respect of which this prospectus is being delivered, including, where applicable, the following:

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CERTAIN PROVISIONS OF MARYLAND LAW AND OF OUR CHARTER AND BYLAWS

        The following summary of certain provisions of Maryland law and of our charter and bylaws does not purport to be complete and is subject to and qualified in its entirety by reference to Maryland law and our charter and bylaws, copies of which are available from us upon request. See "Where You Can Find More Information."

Our Board of Directors

        Our charter and bylaws provide that the number of directors constituting our full board of directors will be not less than the minimum number required by Maryland law, and our bylaws provide that the number of directors constituting our full board of directors will not exceed 15 and may only be increased or decreased by a vote of a majority of our directors. Pursuant to our charter, each member of our board of directors, other than a preferred director, is elected by our stockholders to serve until the next annual meeting of stockholders and until his or her successor is duly elected and qualifies. Holders of shares of our common stock will have no right to cumulative voting in the election of these directors. Consequently, at each annual meeting of stockholders, the holders of a majority of the shares of our common stock will be able to elect all of these directors. Directors are elected by a plurality of the votes cast. However, pursuant to our majority vote policy, in an uncontested election of directors, any nominee for director who receives a greater number of votes "withheld" from his or her election than votes "for" such election will, within two weeks after our certification of the voting results, submit to the board of directors a written offer to resign from the board. The nominating and corporate governance committee will consider the resignation offer and, within 60 days after our certification of the voting results, make a recommendation to our board of directors concerning the acceptance or rejection of the resignation offer. Our board of directors will act on the nominating and corporate governance committee's recommendation no later than 90 days after our certification of the voting results. We will publicly disclose, in a current report on Form 8-K furnished to the SEC, the decision-making process and decision regarding whether to accept the resignation offer or, if applicable, the reasons for rejecting the offer.

        Pursuant to Subtitle 8 of Title 3 of the Maryland General Corporation Law ("MGCL"), our charter provides that, except as may be provided by the board of directors in setting the terms of any class or series of stock, any and all vacancies on the board of directors will be filled only by the affirmative vote of a majority of the remaining directors even if the remaining directors constitute less than a quorum. Any director elected to fill a vacancy will serve for the remainder of the full term of the directorship in which the vacancy occurred and until a successor is elected and qualifies. Our charter provides that, subject to the rights of holders of one or more classes or series of preferred stock to elect or remove one or more directors, a director may be removed only upon the affirmative vote of a majority of the votes entitled to be cast in the election of directors. However, because of the board's exclusive power to fill vacant directorships, stockholders will be precluded from filling the vacancies created by any removal with their own nominees, subject to the rights of holders of one or more classes or series of preferred stock to elect or remove one or more directors.

        The articles supplementary for the Series B Preferred Stock and the Series C Preferred Stock provide that if dividends on the Series B Preferred Stock and/or the Series C Preferred Stock are in arrears for six or more quarterly periods, whether or not consecutive, holders of shares of the Series B Preferred Stock and the Series C Preferred Stock (voting together as a class with the holders of all other classes or series of preferred stock upon which like voting rights have been conferred and are exercisable) will be entitled to vote for the election of two additional directors to serve on our board of directors (which we refer to as preferred stock directors). The articles supplementary for the Series B Preferred Stock and Series C Preferred Stock separately provide for the election, term, removal and filling of any vacancy in the office of the preferred stock directors.

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Amendment to the Charter and Bylaws

        Generally, our charter may be amended only if the amendment is declared advisable by our board of directors and approved by the affirmative vote of a majority of the votes entitled to be cast on the matter. As permitted by the MGCL, our charter contains a provision permitting our directors, without any action by our stockholders, to amend the charter to increase or decrease the aggregate number of shares of stock of any class or series that we have authority to issue. In addition, our charter provides that the board of directors, in setting the terms of any class or series of stock, may grant exclusive voting rights to the holders of the class or series of stock with respect to a charter amendment that would alter the contract rights, as expressly set forth in the charter, only of that specified class or series of stock. Our board of directors has the exclusive power to adopt, alter or repeal any provision of our bylaws and make new bylaws, except the following bylaw provisions, each of which may be amended only with the affirmative vote of a majority of the votes cast on such an amendment by holders of outstanding shares of common stock:

        In addition, any amendment to the provisions governing amendments of the bylaw provisions above requires the approval of a majority of the votes entitled to be cast by holders of outstanding shares of our common stock.

        Additionally, the articles supplementary for the Series B Preferred Stock and Series C Preferred Stock provide the holders of Series B Preferred Stock and Series C Preferred Stock with voting rights with respect to certain amendments to our charter.

No Stockholder Rights Plan

        We have no stockholder rights plan. We do not intend to adopt a stockholder rights plan unless our stockholders approve in advance the adoption of a plan or, if our board of directors adopts a plan for our company, we submit the stockholder rights plan to our stockholders for a ratification vote within 12 months of adoption, without which the plan will terminate.

Dissolution

        Our dissolution must be approved by a majority of our entire board of directors and by the affirmative vote of the holders of a majority of all of the votes entitled to be cast on the matter.

Business Combinations

        Maryland law prohibits "business combinations" between us and an interested stockholder or an affiliate of an interested stockholder for five years after the most recent date on which the interested stockholder becomes an interested stockholder. These business combinations include a merger, consolidation, share exchange, or, in circumstances specified in the statute, an asset transfer or issuance or transfer of equity securities, liquidation plan or reclassification of equity securities. Maryland law defines an interested stockholder as:

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        A person is not an interested stockholder if our board of directors approves in advance the transaction by which the person otherwise would have become an interested stockholder. However, in approving a transaction, our board of directors may provide that its approval is subject to compliance, at or after the time of approval, with any terms and conditions determined by our board of directors.

        After the five-year prohibition, any business combination between us and an interested stockholder or an affiliate of an interested stockholder generally must be recommended by our board of directors and approved by the affirmative vote of at least:

        These super-majority vote requirements do not apply if our common stockholders receive a minimum price, as defined under Maryland law, for their shares in the form of cash or other consideration in the same form as previously paid by the interested stockholder for its stock.

        The statute permits various exemptions from its provisions, including business combinations that are approved or exempted by the board of directors before the time that the interested stockholder becomes an interested stockholder.

        Our board of directors has adopted a resolution opting out of the business combination provisions. Our bylaws provide that this resolution or any other resolution of our board of directors exempting any business combination from the business combination provisions of the MGCL may only be revoked, altered or amended, and our board of directors may only adopt any resolution inconsistent with any such resolution, with the affirmative vote of a majority of the votes cast on the matter by holders of outstanding shares of our common stock. If this resolution is repealed, the statute may discourage others from trying to acquire control of us and increase the difficulty of consummating any offer.

Control Share Acquisitions

        Maryland law provides that "control shares" of a Maryland corporation acquired in a "control share acquisition" have no voting rights, except to the extent approved by a vote of two-thirds of the votes entitled to be cast on the matter. Shares owned by the acquiror or by officers or by directors who are our employees are excluded from the shares entitled to vote on the matter. "Control shares" are voting shares of stock that, if aggregated with all other shares of stock currently owned by the acquiring person, or in respect of which the acquiring person is able to exercise or direct the exercise of voting power (except solely by virtue of a revocable proxy), would entitle the acquiring person to exercise voting power in electing directors within one of the following ranges of voting power:

        Control shares do not include shares the acquiring person is then entitled to vote as a result of having previously obtained stockholder approval. A "control share acquisition" means the acquisition of control shares, subject to certain exceptions. A person who has made or proposes to make a control share acquisition may compel our board of directors to call a special meeting of stockholders to be held

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within 50 days of demand to consider the voting rights of the shares. The right to compel the calling of a special meeting is subject to the satisfaction of certain conditions, including an undertaking to pay the expenses of the meeting. If no request for a meeting is made, we may present the question at any stockholders meeting.

        If voting rights are not approved at the stockholders meeting or if the acquiring person does not deliver the statement required by Maryland law, then, subject to certain conditions and limitations, we may redeem any or all of the control shares, except those for which voting rights have previously been approved, for fair value. Fair value is determined, without regard to the absence of voting rights for the control shares, as of the date of the last control share acquisition by the acquiror or of any meeting of stockholders at which the voting rights of the shares were considered and not approved. If voting rights for control shares are approved at a stockholders meeting and the acquiror becomes entitled to vote a majority of the shares entitled to vote, all other stockholders may exercise appraisal rights. The fair value of the shares for purposes of these appraisal rights may not be less than the highest price per share paid by the acquiror in the control share acquisition. The control share acquisition statute does not apply to shares acquired in a merger, consolidation or share exchange if we are a party to the transaction, nor does it apply to acquisitions approved by or exempted by our charter or bylaws.

        Our bylaws contain a provision exempting from the control share acquisition statute any and all acquisitions by any person of our stock, and this provision of our bylaws may not be amended without the affirmative vote of a majority of the votes cast on the matter by holders of outstanding shares of our common stock.

Maryland Unsolicited Takeovers Act

        Subtitle 8 of Title 3 of the MGCL permits a Maryland corporation with a class of equity securities registered under the Exchange Act, and at least three independent directors to elect to be subject, by provision in its charter or bylaws or a resolution of its board of directors and notwithstanding any contrary provision in the charter or bylaws, to any or all of five provisions:

        In our charter, we have elected that, except as may be provided by the board of directors in setting the terms of any class or series of stock, vacancies on the board be filled only by the remaining directors, even if the remaining directors do not constitute a quorum, and for the remainder of the full term of the directorship in which the vacancy occurred. Through provisions in our charter and bylaws unrelated to Subtitle 8, we:

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Limitation of Liability and Indemnification

        Maryland law permits a Maryland corporation to include in its charter a provision limiting the liability of its directors and officers to the corporation and its stockholders for money damages, except for liability resulting from:

        Our charter contains such a provision that eliminates directors' and officers' liability to the maximum extent permitted by Maryland law. These limitations of liability do not apply to liabilities arising under the federal securities laws and do not generally affect the availability of equitable remedies such as injunctive relief or rescission.

        Our charter also authorizes our company, to the maximum extent permitted by Maryland law, to obligate our company to indemnify any present or former director or officer or any individual who, while a director or officer of our company and at the request of our company, serves or has served another corporation, real estate investment trust, partnership, joint venture, trust, employee benefit plan or other enterprise as a director, officer, partner or trustee, from and against any claim or liability to which that individual may become subject or which that individual may incur by reason of his or her service in any such capacity and to pay or reimburse his or her reasonable expenses in advance of final disposition of a proceeding.

        Our bylaws obligate us, to the maximum extent permitted by Maryland law, to indemnify any present or former director or officer or any individual who, while a director or officer of our company and at the request of our company, serves or has served another corporation, real estate investment trust, partnership, joint venture, trust, employee benefit plan or other enterprise as a director, officer, partner or trustee and who is made, or threatened to be made, a party to the proceeding by reason of his or her service in that capacity, from and against any claim or liability to which that individual may become subject or which that individual may incur by reason of his or her service in any such capacity and to pay or reimburse his or her reasonable expenses in advance of final disposition of a proceeding. Our charter and bylaws also permit our company to indemnify and advance expenses to any individual who served a predecessor of our company in any of the capacities described above and any employee or agent of our company or a predecessor of our company.

        Maryland law requires a corporation (unless its charter provides otherwise, which our charter does not) to indemnify a director or officer who has been successful in the defense of any proceeding to which he or she is made, or threatened to be made, a party by reason of his or her service in that capacity. Maryland law permits a corporation to indemnify its present and former directors and officers, among others, against judgments, penalties, fines, settlements and reasonable expenses actually incurred by them in connection with any proceeding to which they may be made, or threatened to be made, a party by reason of their service in those or other capacities unless it is established that:

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        However, under Maryland law, a Maryland corporation may not indemnify for an adverse judgment in a suit by or in the right of the corporation or for a judgment of liability on the basis that personal benefit was improperly received, unless in either case a court orders indemnification and then only for expenses. In addition, Maryland law permits a corporation to advance reasonable expenses to a director or officer upon the corporation's receipt of:

        We entered into indemnification agreements with our directors and executive officers that obligate us to indemnify them to the maximum extent permitted by Maryland law.

        The indemnification agreements provide that if a director or executive officer is a party or is threatened to be made a party to any proceeding by reason of such director's or executive officer's status as a director, officer or employee of our company, we must indemnify such director or executive officer for all expenses and liabilities actually and reasonably incurred by him or her, or on his or her behalf, unless it has been established that:

        The indemnification agreements also provide that upon application of a director or executive officer of our company to a court of appropriate jurisdiction, the court may order indemnification of such director or executive officer if:

        Notwithstanding, and without limiting, any other provisions of the indemnification agreements, if a director or executive officer is a party or is threatened to be made a party to any proceeding by reason of such director's or executive officer's status as a director, executive officer or employee of our company, and such director or executive officer is successful, on the merits or otherwise, as to one or more but less than all claims, issues or matters in such proceeding, we must indemnify such director or executive officer for all expenses actually and reasonably incurred by him or her, or on his or her

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behalf, in connection with each successfully resolved claim, issue or matter, including any claim, issue or matter in such a proceeding that is terminated by dismissal, with or without prejudice.

        In addition, the indemnification agreements require us to advance reasonable expenses incurred by the indemnitee within 20 days of the receipt by us of a statement from the indemnitee requesting the advance, provided the statement evidences the expenses and is accompanied by:

        The indemnification agreements also provide for procedures for the determination of entitlement to indemnification, including requiring such determination be made by independent counsel after a change of control of us.

        In addition, to the maximum extent permitted by law, our 2011 Equity Incentive Plan provides the members of our board of directors with limited liability with respect to actions taken or decisions made in good faith relating to the plan and indemnification in connection with their activities under the plan.

        Insofar as the foregoing provisions permit indemnification of directors, executive officers or persons controlling us for liability arising under the Securities Act, we have been informed that, in the opinion of the SEC, this indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

Meetings of Stockholders

        Subject to the rights of holders of one or more classes or series of preferred stock specifically set forth in our charter, special meetings of stockholders may be called only by our board of directors, the chairman of our board of directors, our chief executive officer, our president or, in the case of a stockholder requested special meeting, by our secretary upon the written request of the holders of common stock entitled to cast not less than a majority of all votes entitled to be cast at such meeting. Only matters set forth in the notice of the special meeting may be considered and acted upon at such a meeting. Additionally, the articles supplementary for the Series B Preferred Stock and Series C Preferred Stock provide the holders of Series B Preferred Stock and Series C Preferred Stock certain rights to have a special meeting called upon their request in connection with the election of the preferred stock directors.

Advance Notice of Director Nominations and New Business

        Our bylaws provide that with respect to an annual meeting of stockholders, nominations of individuals for election to the board of directors and the proposal of business to be considered by stockholders may be made only:

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        With respect to special meetings of stockholders, only the business specified in our notice of the meeting may be brought before the meeting. Nominations of individuals for election to our board of directors at a special meeting may be made only:

        Generally, in accordance with our bylaws, a stockholder seeking to nominate a director or bring other business before our annual meeting of stockholders must deliver a notice to our secretary not later than 5:00 p.m., Eastern Time, on the 120th day, nor earlier than the 150th day, prior to the first anniversary of the date of mailing of the notice for the prior year's annual meeting of stockholders. For a stockholder seeking to nominate a candidate for our board of directors, the notice must describe various matters regarding the nominee, including name, address, occupation and number of shares held, and other specified matters. For a stockholder seeking to propose other business, the notice must include a description of the proposed business, the reasons for the proposal and other specified matters.

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MATERIAL FEDERAL INCOME TAX CONSIDERATIONS

        This section summarizes the material federal income tax considerations that you, as a securityholder, may consider relevant. Hunton & Williams LLP has acted as our counsel, has reviewed this summary, and is of the opinion that the discussion contained herein is accurate in all material respects. Because this section is a summary, it does not address all aspects of taxation that may be relevant to particular securityholders in light of their personal investment or tax circumstances, or to certain types of securityholders that are subject to special treatment under the federal income tax laws, such as:

        This summary assumes that securityholders hold our securities as capital assets for federal income tax purposes, which generally means property held for investment.

        The statements in this section are not intended to be, and should not be construed as, tax advice. The statements in this section are based on the Code, current, temporary and proposed Treasury regulations, the legislative history of the Code, current administrative interpretations and practices of the IRS, and court decisions. The reference to IRS interpretations and practices includes the IRS practices and policies endorsed in private letter rulings, which are not binding on the IRS except with respect to the taxpayer that receives the ruling. In each case, these sources are relied upon as they exist on the date of this discussion. Future legislation, Treasury regulations, administrative interpretations and court decisions could change current law or adversely affect exiting interpretations of current law on which the information in this section is based. Any such change could apply retroactively. We have not received any rulings from the IRS concerning our qualification as a REIT. Accordingly, even if there is no change in the applicable law, no assurance can be provided that the statements made in the following discussion, which do not bind the IRS or the courts, will not be challenged by the IRS or will be sustained by a court if so challenged.

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        WE URGE YOU TO CONSULT YOUR TAX ADVISOR REGARDING THE SPECIFIC TAX CONSEQUENCES TO YOU OF THE PURCHASE, OWNERSHIP AND SALE OF OUR SECURITIES AND OF OUR ELECTION TO BE TAXED AS A REIT. SPECIFICALLY, YOU SHOULD CONSULT YOUR TAX ADVISOR REGARDING THE FEDERAL, STATE, LOCAL, FOREIGN, AND OTHER TAX CONSEQUENCES OF SUCH PURCHASE, OWNERSHIP, SALE AND ELECTION, AND REGARDING POTENTIAL CHANGES IN APPLICABLE TAX LAWS.

Taxation of our Company

        We elected to be taxed as a REIT for federal income tax purposes commencing with our taxable year ended December 31, 2011. We believe that, commencing with such taxable year, we have been organized and have operated in such a manner as to qualify for taxation as a REIT under the Code, and we intend to continue to operate in such a manner, but no assurances can be given that we will operate in a manner so as to qualify or remain qualified as a REIT. This section discusses the laws governing the federal income tax treatment of a REIT and its stockholders. These laws are highly technical and complex.

        In the opinion of Hunton & Williams LLP, we qualified to be taxed as a REIT for our taxable years ended December 31, 2012 through December 31, 2016, and our current and proposed method of operations will enable us to continue to satisfy the requirements for qualification and taxation as a REIT under the federal income tax laws for our taxable year ending December 31, 2017 and subsequent taxable years. Investors should be aware that Hunton & Williams LLP's opinion is based upon customary assumptions, will be conditioned upon certain representations made by us as to factual matters, including representations regarding the nature of our assets and the conduct of our business, is not binding upon the IRS or any court, and speaks as of the date issued. In addition, Hunton & Williams LLP's opinion will be based on existing federal income tax law governing qualification as a REIT, which is subject to change either prospectively or retroactively. Moreover, our qualification and taxation as a REIT will depend upon our ability to meet on a continuing basis, through actual annual operating results, certain qualification tests set forth in the federal income tax laws. Those qualification tests involve the percentage of income that we earn from specified sources, the percentage of our assets that falls within specified categories, the diversity of our capital stock ownership, and the percentage of our earnings that we distribute. Hunton & Williams LLP will not review our compliance with those tests on a continuing basis. Accordingly, no assurance can be given that our actual results of operations for any particular taxable year will satisfy such requirements. Hunton & Williams LLP's opinion does not foreclose the possibility that we may have to use one or more of the REIT savings provisions described below, which would require us to pay an excise or penalty tax (which could be material), in order for us to maintain our REIT qualification. For a discussion of the tax consequences of our failure to qualify as a REIT, see "—Failure to Qualify."

        If we qualify as a REIT, we generally will not be subject to federal income tax on the taxable income that we distribute to our stockholders. The benefit of that tax treatment is that it avoids the "double taxation," or taxation at both the corporate and stockholder levels, that generally results from owning stock in a corporation. However, we will be subject to federal tax in the following circumstances:

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        In addition, notwithstanding our qualification as a REIT, we also may have to pay certain state and local income taxes because not all states and localities treat REITs in the same manner that they are treated for federal income tax purposes. Moreover, as further described below, STAG TRS and any other TRS we form the future will be subject to federal, state and local corporate income tax on their taxable income.

Requirements for Qualification

        A REIT is a corporation, trust, or association that meets each of the following requirements:

        We must meet requirements 1 through 4, 7, 8 and 9 during our entire taxable year and must meet requirement 5 during at least 335 days of a taxable year of 12 months, or during a proportionate part of a taxable year of less than 12 months. Requirements 5 and 6 applied to us beginning with our 2012 taxable year. If we comply with all the requirements for ascertaining the ownership of our outstanding stock in a taxable year and have no reason to know that we violated requirement 6, we will be deemed to have satisfied requirement 6 for that taxable year. For purposes of determining stock ownership

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under requirement 6, an "individual" generally includes a supplemental unemployment compensation benefits plan, a private foundation, or a portion of a trust permanently set aside or used exclusively for charitable purposes. An "individual," however, generally does not include a trust that is a qualified employee pension or profit sharing trust under the federal income tax laws, and beneficiaries of such a trust will be treated as holding our stock in proportion to their actuarial interests in the trust for purposes of requirement 6.

        Our charter provides restrictions regarding the transfer and ownership of shares of our capital stock. See "Description of Capital Stock—Restrictions on Ownership and Transfer of Stock." We believe that we have issued sufficient stock with sufficient diversity of ownership to allow us to satisfy requirements 5 and 6 above. The restrictions in our charter are intended (among other things) to assist us in continuing to satisfy requirements 5 and 6 above. These restrictions, however, may not ensure that we will, in all cases, be able to satisfy such share ownership requirements. If we fail to satisfy these share ownership requirements, our qualification as a REIT may terminate.

        Qualified REIT Subsidiaries.    A corporation that is a "qualified REIT subsidiary" is not treated as a corporation separate from its parent REIT. All assets, liabilities, and items of income, deduction, and credit of a "qualified REIT subsidiary" are treated as assets, liabilities, and items of income, deduction, and credit of the REIT. A "qualified REIT subsidiary" is a corporation, other than a TRS, all of the stock of which is owned by the REIT. Thus, in applying the requirements described herein, any "qualified REIT subsidiary" that we own will be ignored, and all assets, liabilities, and items of income, deduction, and credit of such subsidiary will be treated as our assets, liabilities, and items of income, deduction, and credit.

        Other Disregarded Entities and Partnerships.    An unincorporated domestic entity, such as a partnership or limited liability company that has a single owner for federal income tax purposes, generally is not treated as an entity separate from its owner for federal income tax purposes. An unincorporated domestic entity with two or more owners is generally treated as a partnership for federal income tax purposes. In the case of a REIT that is a partner in a partnership that has other partners, the REIT is treated as owning its proportionate share of the assets of the partnership and as earning its allocable share of the gross income of the partnership for purposes of the applicable REIT qualification tests. Our proportionate share for purposes of the 10% value test (see "—Asset Tests") is based on our proportionate interest in the equity interests and certain debt securities issued by the partnership. For all of the other asset and income tests, our proportionate share is based on our proportionate interest in the capital interests in the partnership. Our proportionate share of the assets, liabilities, and items of income of any partnership, joint venture, or limited liability company that is treated as a partnership for federal income tax purposes in which we acquire an equity interest, directly or indirectly, are treated as our assets and gross income for purposes of applying the various REIT qualification requirements.

        We have control of our operating partnership and intend to control any subsidiary partnerships and limited liability companies, and we intend to operate them in a manner consistent with the requirements for our qualification as a REIT. We may from time to time be a limited partner or non-managing member in some of our partnerships and limited liability companies. If a partnership or limited liability company in which we own an interest takes or expects to take actions that could jeopardize our status as a REIT or require us to pay tax, we may be forced to dispose of our interest in such entity. In addition, it is possible that a partnership or limited liability company could take an action which could cause us to fail a gross income or asset test, and that we would not become aware of such action in time to dispose of our interest in the partnership or limited liability company or take other corrective action on a timely basis. In that case, we could fail to qualify as a REIT unless we were entitled to relief, as described below.

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        Taxable REIT Subsidiaries.    A REIT may own up to 100% of the shares of one or more TRSs. A TRS is a fully taxable corporation that may earn income that would not be qualifying income if earned directly by the parent REIT. The subsidiary and the REIT must jointly elect to treat the subsidiary as a TRS. A corporation (other than a REIT) of which a TRS directly or indirectly owns more than 35% of the voting power or value of the outstanding securities will automatically be treated as a TRS. We are not treated as holding the assets of a TRS or as receiving any income that the TRS earns. Rather, the stock issued by a TRS to us is an asset in our hands, and we treat the distributions paid to us from such TRS, if any, as dividend income to the extent of the TRS's current and accumulated earnings and profits. This treatment may affect our compliance with the gross income and asset tests. Because we do not include the assets and income of TRSs in determining our compliance with the REIT requirements, we may use such entities to undertake indirectly activities that the REIT rules might otherwise preclude us from doing directly or through pass-through subsidiaries. Overall, no more than 25% (20% for taxable years beginning after December 31, 2017) of the value of a REIT's assets may consist of stock or securities of one or more TRSs. A TRS generally may not directly or indirectly operate or manage any health care facilities or lodging facilities or provide rights to any brand name under which any health care facility or lodging facility is operated.

        A TRS pays income tax at regular corporate rates on any income that it earns. In addition, the TRS rules limit the deductibility of interest paid or accrued by a TRS to its parent REIT to assure that the TRS is subject to an appropriate level of corporate taxation. Further, the rules impose a 100% excise tax on transactions between a TRS and its parent REIT or the REIT's tenants that are not conducted on an arm's-length basis.

        Rent that we receive from a TRS will qualify as "rents from real property" as long as (1) at least 90% of the leased space in the property is leased to persons other than TRSs and related-party tenants, and (2) the amount paid by the TRS to rent space at the property is substantially comparable to rents paid by other tenants of the property for comparable space, as described in further detail below under "—Gross Income Tests—Rents from Real Property." If we lease space to a TRS in the future, we will seek to comply with these requirements. We elected to treat STAG TRS as a TRS. STAG TRS is subject to corporate income tax on its taxable income. We may elect to treat other entities as TRSs in the future.

Gross Income Tests

        We must satisfy two gross income tests annually to maintain our qualification as a REIT. First, at least 75% of our gross income for each taxable year must consist of defined types of income that we derive, directly or indirectly, from investments relating to real property or mortgages on real property or qualified temporary investment income. Qualifying income for purposes of that 75% gross income test generally includes:

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        Although a debt instrument issued by a "publicly offered REIT" (i.e., a REIT that is required to file annual and periodic reports with the SEC under the Exchange Act) is treated as a "real estate asset" for purposes of the asset tests for taxable years beginning after December 31, 2015, neither the gain from the sale of such debt instruments nor interest on such debt instruments is treated as qualifying income for the 75% gross income test unless the debt instrument is secured by real property or an interest in real property.

        Second, in general, at least 95% of our gross income for each taxable year must consist of income that is qualifying income for purposes of the 75% gross income test, other types of interest and dividends, gain from the sale or disposition of stock or securities, or any combination of these. Gross income from our sale of any property that we hold primarily for sale to customers in the ordinary course of business is excluded from both the numerator and the denominator in both gross income tests. In addition, income and gain from "hedging transactions" (as defined in "—Hedging Transactions") that we enter into to hedge indebtedness incurred or to be incurred to acquire or carry real estate assets and that are clearly and timely identified as such will be excluded from both the numerator and the denominator for purposes of the 75% and 95% gross income tests. In addition, certain foreign currency gains will be excluded from gross income for purposes of one or both of the gross income tests. See "—Foreign Currency Gain." Finally, gross income attributable to cancellation of indebtedness income will be excluded from both the numerator and denominator for purposes of both of the gross income tests. The following paragraphs discuss the specific application of the gross income tests to us.

        Rents from Real Property.    Rent that we receive from our real property will qualify as "rents from real property," which is qualifying income for purposes of the 75% and 95% gross income tests, only if the following conditions are met:

        Our operating partnership and its subsidiaries generally lease our properties in the form of either a triple net lease, a gross lease or a modified gross lease. In order for the rent paid under our leases to constitute "rents from real property," the leases must be respected as true leases for federal income tax

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purposes and not treated as service contracts, joint ventures or some other type of arrangement. The determination of whether our leases are true leases depends on an analysis of all the surrounding facts and circumstances. We believe we have, and intend to enter into, leases that will be treated as true leases. If our leases are characterized as service contracts or partnership agreements, rather than as true leases, part or all of the payments that our operating partnership and its subsidiaries receive from our leases may not be considered rent or may not otherwise satisfy the various requirements for qualification as "rents from real property." In that case, we likely would not be able to satisfy either the 75% or 95% gross income test and, as a result, would lose our REIT status unless we qualify for relief, as described below under "—Failure to Satisfy Gross Income Tests."

        As described above, for the rent that we receive to constitute "rents from real property," several other requirements must be satisfied. First, rent must not be based in whole or in part on the income or profits of any person. Percentage rent, however, will qualify as "rents from real property" if it is based on percentages of receipts or sales and the percentages:

        More generally, rent will not qualify as "rents from real property" if, considering the leases and all the surrounding circumstances, the arrangement does not conform with normal business practice, but is in reality used as a means of basing the rent on income or profits.

        Second, if we own, actually or constructively, 10% or more (measured by voting power or fair market value) of the stock of a corporate lessee, or 10% or more of the assets or net profits of any non-corporate lessee (each a "related party tenant"), other than a TRS, any income we receive from the lessee will be non-qualifying income for purposes of the 75% and 95% gross income tests. The constructive ownership rules generally provide that, if 10% or more in value of our stock is owned, directly or indirectly, by or for any person, we are considered as owning the shares owned, directly or indirectly, by or for such person. We believe that all of our properties are and will be leased to third parties that do not constitute related party tenants. In addition, our charter prohibits transfers of our stock that would cause us to own actually or constructively, 10% or more of the ownership interests in any non-TRS lessee. Based on the foregoing, we should never own, actually or constructively, 10% or more of any lessee other than a TRS. However, because the constructive ownership rules are broad and it is not possible to monitor continually direct and indirect transfers of our stock, no absolute assurance can be given that such transfers or other events of which we have no knowledge will not cause us to own constructively 10% or more of a lessee (or a subtenant, in which case only rent attributable to the subtenant is disqualified) other than a TRS at some future date.

        As described above, we may own up to 100% of the shares of one or more TRSs. Under an exception to the related-party tenant rule described in the preceding paragraph, rent that we receive from a TRS will qualify as "rents from real property" as long as (i) at least 90% of the leased space in the property is leased to persons other than TRSs and related-party tenants, and (ii) the amount paid by the TRS to rent space at the property is substantially comparable to rents paid by other tenants of the property for comparable space. The "substantially comparable" requirement must be satisfied when the lease is entered into, when it is extended, and when the lease is modified, if the modification increases the rent paid by the TRS. If the requirement that at least 90% of the leased space in the related property is rented to unrelated tenants is met when a lease is entered into, extended, or modified, such requirement will continue to be met as long as there is no increase in the space leased to any TRS or related party tenant. Any increased rent attributable to a modification of a lease with a TRS in which we own directly or indirectly more than 50% of the voting power or value of the stock (a

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"controlled TRS") will not be treated as "rents from real property." If in the future we receive rent from a TRS, we will seek to comply with this exception.

        Third, the rent attributable to the personal property leased in connection with the lease of a property must not be greater than 15% of the total rent received under the lease. The rent attributable to the personal property contained in a property is the amount that bears the same ratio to total rent for the taxable year as the average of the fair market values of the personal property at the beginning and at the end of the taxable year bears to the average of the aggregate fair market values of both the real and personal property contained in the property at the beginning and at the end of such taxable year (the "personal property ratio"). With respect to each of our leases, we believe either that the personal property ratio is less than 15% or that any rent attributable to excess personal property, when taken together with all of our other non-qualifying income, will not jeopardize our ability to qualify as a REIT. There can be no assurance, however, that the IRS would not challenge our calculation of a personal property ratio, or that a court would not uphold such assertion. If such a challenge were successfully asserted, we could fail to satisfy the 75% or 95% gross income test and thus potentially lose our REIT status.

        Fourth, except as described below, we cannot furnish or render noncustomary services to the tenants of our properties, or manage or operate our properties, other than through an independent contractor who is adequately compensated and from whom we do not derive or receive any income. However, we need not provide services through an "independent contractor," but instead may provide services directly to our tenants, if the services are "usually or customarily rendered" in connection with the rental of space for occupancy only and are not considered to be provided for the tenants' convenience. In addition, we may provide a minimal amount of "noncustomary" services to the tenants of a property, other than through an independent contractor, as long as our income from the services (valued at not less than 150% of our direct cost for performing such services) does not exceed 1% of our income from the related property. Finally, we may own up to 100% of the shares of one or more TRSs, which may provide noncustomary services to our tenants without tainting our rents from the related properties. We believe that we do not perform any services other than customary ones for our lessees, other than services are provided through independent contractors or TRSs.

        If a portion of the rent that we receive from a property does not qualify as "rents from real property" because the rent attributable to personal property exceeds 15% of the total rent for a taxable year, the portion of the rent that is attributable to personal property will not be qualifying income for purposes of either the 75% or 95% gross income test. Thus, if such rent attributable to personal property, plus any other income that is non-qualifying income for purposes of the 95% gross income test, during a taxable year exceeds 5% of our gross income during the year, we would lose our REIT qualification. If, however, the rent from a particular property does not qualify as "rents from real property" because either (i) the rent is considered based on the income or profits of the related lessee, (ii) the lessee either is a related party tenant or fails to qualify for the exceptions to the related party tenant rule for qualifying TRSs or (iii) we furnish noncustomary services to the tenants of the property, or manage or operate the property, other than through a qualifying independent contractor or a TRS, none of the rent from that property would qualify as "rents from real property." In that case, we might lose our REIT qualification because we would be unable to satisfy either the 75% or 95% gross income test. In addition to the rent, the lessees are required to pay certain additional charges. To the extent that such additional charges represent either (i) reimbursements of amounts that we are obligated to pay to third parties, such as a lessee's proportionate share of a property's operational or capital expenses, or (ii) penalties for nonpayment or late payment of such amounts, such charges generally will qualify as "rents from real property." To the extent such additional charges represent penalties for nonpayment or late payment of such amounts, such charges should qualify as "rents from real property." However, to the extent that late charges do not qualify as "rents from real property," they

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instead will be treated as interest that qualifies for the 95% gross income test. We believe that our leases are structured in a manner that will enable us to continue satisfy the REIT gross income tests.

        Interest.    The term "interest" generally does not include any amount received or accrued, directly or indirectly, if the determination of such amount depends in whole or in part on the income or profits of any person. However, interest generally includes the following:

        Interest on debt secured by a mortgage on real property or on interests in real property, including, for this purpose, discount points, prepayment penalties, loan assumption fees, and late payment charges that are not compensation for services, generally is qualifying income for purposes of the 75% gross income test. However, except to the extent described below, if a loan is secured by real property and other property and the highest principal amount of a loan outstanding during a taxable year exceeds the fair market value of the real property securing the loan as of the date the REIT agreed to originate or acquire the loan or on the date the REIT modifies the loan (if the modification is treated as "significant" for federal income tax purposes), a portion of the interest income from such loan will not be qualifying income for purposes of the 75% gross income test, but will be qualifying income for purposes of the 95% gross income test. The portion of the interest income that will not be qualifying income for purposes of the 75% gross income test will be equal to the portion of the principal amount of the loan that is not secured by real property—that is, the amount by which the loan exceeds the value of the real estate that is security for the loan. IRS guidance provides that we do not need to redetermine the fair market value of the real property securing a loan in connection with a loan modification that is occasioned by a borrower default or made at a time when we reasonably believe that the modification to the loan will substantially reduce a significant risk of default on the original loan. In addition, for taxable years beginning after December 31, 2015, in the case of a loan that is secured by both real property and personal property, if the fair market value of such personal property does not exceed 15% of the total fair market value of all such property securing the loan, then the personal property securing the loan will be treated as real property for purposes of determining whether the interest on such loan is qualifying income for purposes of the 75% gross income test.

        If a loan contains a provision that entitles a REIT to a percentage of the borrower's gain upon the sale of the real property securing the loan or a percentage of the appreciation in the property's value as of a specific date, income attributable to that loan provision will be treated as gain from the sale of the property securing the loan, which generally is qualifying income for purposes of both gross income tests assuming the loan is held for investment.

        Dividends.    Our share of any dividends received from any corporation (including any TRS, but excluding any REIT) in which we own an equity interest will qualify for purposes of the 95% gross income test but not for purposes of the 75% gross income test. Our share of any dividends received from any other REIT in which we own an equity interest, if any, will be qualifying income for purposes of both gross income tests.

        Fee Income.    We may receive various fees. Fee income will generally not be treated as qualifying income for purposes of the 75% and 95% gross income tests. Any fees earned by a TRS are not included for purposes of the gross income tests. We may receive (either actual receipt or deemed receipt) amounts from certain affiliated entities in exchange for such entities' use of intellectual property rights, including the use of the STAG name. We do not expect such amounts to be significant, and, in any event, to negatively impact our compliance with REIT gross income tests.

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        Prohibited Transactions.    A REIT will incur a 100% tax on the net income (including foreign currency gain) derived from any sale or other disposition of property, other than foreclosure property, that the REIT holds primarily for sale to customers in the ordinary course of a trade or business. We believe that none of our assets are held primarily for sale to customers and that a sale of any of our assets will not be in the ordinary course of our business. Whether a REIT holds an asset "primarily for sale to customers in the ordinary course of a trade or business" depends, however, on the facts and circumstances in effect from time to time, including those related to a particular asset. A safe harbor to the characterization of the sale of property by a REIT as a prohibited transaction and the 100% prohibited transaction tax is available if the following requirements are met:

        We will attempt to comply with the terms of the safe-harbor provisions in the federal income tax laws prescribing when an asset sale will not be characterized as a prohibited transaction. We cannot assure you, however, that we can comply with the safe-harbor provisions or that we will avoid owning property that may be characterized as property that we hold "primarily for sale to customers in the ordinary course of a trade or business." The 100% tax will not apply to gains from the sale of property that is held through a TRS or other taxable corporation, although such income will be taxed to the corporation at regular corporate income tax rates.

        Foreclosure Property.    We will be subject to tax at the maximum corporate rate on any income from foreclosure property, which includes certain foreign currency gains and related deductions, other than income that otherwise would be qualifying income for purposes of the 75% gross income test, less expenses directly connected with the production of that income. However, gross income from

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foreclosure property will qualify under the 75% and 95% gross income tests. Foreclosure property is any real property, including interests in real property, and any personal property incident to such real property:

        A REIT will not be considered to have foreclosed on a property where the REIT takes control of the property as a mortgagee-in-possession and cannot receive any profit or sustain any loss except as a creditor of the mortgagor. Property generally ceases to be foreclosure property at the end of the third taxable year (or, with respect to qualified health care property, the second taxable year) following the taxable year in which the REIT acquired the property, or longer if an extension is granted by the Secretary of the Treasury. However, this grace period terminates and foreclosure property ceases to be foreclosure property on the first day:

        Hedging Transactions.    From time to time, we or our operating partnership have and will enter into hedging transactions with respect to one or more of our assets or liabilities. Our hedging activities may include entering into interest rate swaps, caps, and floors, options to purchase such items, and futures and forward contracts. Income and gain from "hedging transactions" will be excluded from gross income for purposes of both the 75% and 95% gross income tests provided we satisfy the identification requirements discussed below. A "hedging transaction" means (i) any transaction entered into in the normal course of our or our operating partnership's trade or business primarily to manage the risk of interest rate, price changes, or currency fluctuations with respect to borrowings made or to be made, or ordinary obligations incurred or to be incurred, to acquire or carry real estate assets, (ii) any transaction entered into primarily to manage the risk of currency fluctuations with respect to any item of income or gain that would be qualifying income under the 75% or 95% gross income test (or any property which generates such income or gain), or (iii) any transaction entered into after December 31, 2015 to "offset" transactions described in (i) or (ii) if a portion of the hedged indebtedness is extinguished or the related property disposed of. We are required to clearly identify any such hedging transaction before the close of the day on which it was acquired, originated, or entered into and to satisfy other identification requirements. We believe we have structured any hedging transactions in a manner that does not jeopardize our qualification as a REIT.

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        Foreign Currency Gain.    Certain foreign currency gains will be excluded from gross income for purposes of one or both of the gross income tests. "Real estate foreign exchange gain" will be excluded from gross income for purposes of the 75% and 95% gross income tests. Real estate foreign exchange gain generally includes foreign currency gain attributable to any item of income or gain that is qualifying income for purposes of the 75% gross income test, foreign currency gain attributable to the acquisition or ownership of (or becoming or being the obligor under) obligations secured by mortgages on real property or an interest in real property and certain foreign currency gain attributable to certain "qualified business units" of a REIT. "Passive foreign exchange gain" will be excluded from gross income for purposes of the 95% gross income test. Passive foreign exchange gain generally includes real estate foreign exchange gain as described above, and also includes foreign currency gain attributable to any item of income or gain that is qualifying income for purposes of the 95% gross income test and foreign currency gain attributable to the acquisition or ownership of (or becoming or being the obligor under) obligations. These exclusions for real estate foreign exchange gain and passive foreign exchange gain do not apply to any certain foreign currency gain derived from dealing, or engaging in substantial and regular trading, in securities. Such gain is treated as non-qualifying income for purposes of both the 75% and 95% gross income tests.

        Failure to Satisfy Gross Income Tests.    We may have gross income that fails to constitute qualifying income for purposes of one or both of the gross income tests. Taking into account our anticipated sources of non-qualifying income, however, we expect that our aggregate gross income will allow us to continue to satisfy the 75% and 95% gross income tests applicable to REITs. If we fail to satisfy one or both of the gross income tests for any taxable year, we nevertheless may qualify as a REIT for that year if we qualify for relief under certain provisions of the federal income tax laws. Those relief provisions are available if:

        We cannot predict, however, whether in all circumstances we would qualify for the relief provisions. In addition, as discussed above in "—Taxation of Our Company," even if the relief provisions apply, we would incur a 100% tax on the gross income attributable to the greater of the amount by which we fail the 75% gross income test or the 95% gross income test multiplied, in either case, by a fraction intended to reflect our profitability.

Asset Tests

        To qualify as a REIT, we also must satisfy the following asset tests at the end of each quarter of each taxable year.

        First, at least 75% of the value of our total assets must consist of:

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        Second, of our investments not included in the 75% asset class, the value of our interest in any one issuer's securities may not exceed 5% of the value of our total assets, or the 5% asset test.

        Third, of our investments not included in the 75% asset class, we may not own more than 10% of the voting power of any one issuer's outstanding securities or 10% of the value of any one issuer's outstanding securities, or the 10% vote test or 10% value test, respectively.

        Fourth, no more than 25% (20% for taxable years beginning after December 31, 2017) of the value of our total assets may consist of the securities of one or more TRSs.

        Fifth, no more than 25% of the value of our total assets may consist of the securities of TRSs and other non-TRS taxable subsidiaries and other assets that are not qualifying assets for purposes of the 75% asset test, or the 25% securities test.

        Sixth, not more than 25% of the value of our total assets may consist of debt instruments issued by "publicly offered REITs" to the extent not secured by real property or interests in real property.

        For purposes of the 5% asset test, the 10% vote test and the 10% value test, the term "securities" does not include shares in another REIT, debt of "publicly offered REITs," equity or debt securities of a qualified REIT subsidiary or TRS, mortgage loans that constitute real estate assets, or equity interests in a partnership. The term "securities," however, generally includes debt securities issued by a partnership or another REIT, except that for purposes of the 10% value test, the term "securities" does not include:

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        For purposes of the 10% value test, our proportionate share of the assets of a partnership is our proportionate interest in any securities issued by the partnership, without regard to the securities described in the last two bullet points above.

        In general, under the applicable Treasury Regulations, if a loan is secured by real property and other property and the highest principal amount of the loan outstanding during a taxable year exceeds the fair market value of the real property securing the loan as of: (i) the date we agreed to acquire or originate the loan; or (ii) in the event of a significant modification, the date we modified the loan, then a portion of the interest income from such a loan will not be qualifying income for purposes of the 75% gross income test, but will be qualifying income for purposes of the 95% gross income test. A portion of the loan will also likely be a non-qualifying asset for purposes of the 75% asset test. The non-qualifying portion of such a loan would be subject to, among other requirements, the 10% vote or value test. IRS Revenue Procedure 2014-51 provides a safe harbor under which the IRS has stated that it will not challenge a REIT's treatment of a loan as being, in part, a real estate asset for purposes of the 75% asset test if the REIT treats the loan as being a qualifying real estate asset in an amount equal to the lesser of (i) the fair market value of the loan on the relevant quarterly REIT asset testing date or (ii) the greater of (a) the fair market value of the real property securing the loan in the relevant quarterly REIT asset testing date or (b) the fair market value of the real property securing the loan on the date the REIT committed to originate or acquire the loan. It is unclear how the safe harbor in Revenue Procedure 2014-51 is affected by the recent legislative changes regarding the treatment of personal property securing a mortgage loan, which treat personal property as real property for purposes of the gross income tests so long as no more than 15% of the fair market value of the property securing a loan is personal property.

        We will monitor the status of our assets for purposes of the various asset tests and will manage our portfolio to comply at all times with such tests. However, there is no assurance that we will not inadvertently fail to comply with such tests. If we fail to satisfy the asset tests at the end of a calendar quarter, we will not lose our REIT qualification if:

        If we did not satisfy the condition described in the second item, above, we still could avoid disqualification by eliminating any discrepancy within 30 days after the close of the calendar quarter in which it arose.

        If we violate the 5% asset test, the 10% vote test or the 10% value test described above, we will not lose our REIT qualification if (i) the failure is de minimis (up to the lesser of 1% of our assets or $10 million) and (ii) we dispose of assets causing the failure or otherwise comply with the asset tests within six months after the last day of the quarter in which we identify such failure. If we fail any of the asset tests (other than de minimis failures described in the preceding sentence), as long as the failure was due to reasonable cause and not to willful neglect, we will not lose our REIT qualification if we (i) dispose of assets causing the failure or otherwise comply with the asset tests within six months

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after the last day of the quarter in which we identify the failure, (ii) we file a description of each asset causing the failure with the IRS and (iii) pay a tax equal to the greater of $50,000 or 35% of the net income from the assets causing the failure during the period in which we failed to satisfy the asset tests.

        Some of our assets consist of goodwill, including goodwill related to the contribution of our predecessor's management company in connection with our initial public offering. We do not believe that the value of any such goodwill has been or will be significant such that it negatively impacts our compliance with the REIT asset tests.

        We believe that the assets that we hold, and that we will acquire in the future, will allow us to satisfy the foregoing asset test requirements. However, we do not typically obtain independent appraisals to support our conclusions as to the value of our assets. Moreover, the values of some assets may not be susceptible to a precise determination. As a result, there can be no assurance that the IRS will not contend that our ownership of certain assets violates one or more of the asset tests applicable to REITs.

Sale-Leaseback Transactions

        A portion of our investments is expected to be in the form of sale-leaseback transactions. We intend to treat these transactions as true leases for federal income tax purposes. However, depending on the terms of any specific transaction, the IRS might take the position that the transaction is not a true lease but is more properly treated in some other manner. If such recharacterization were successful, we would not be entitled to claim the depreciation deductions available to an owner of the property. In addition, the recharacterization of one or more of these transactions might cause us to fail to satisfy the asset tests or the income tests described above and such failure could result in our failing to qualify as a REIT. Alternatively, the amount or timing of income inclusion or the loss of depreciation deductions resulting from the recharacterization might cause us to fail to meet the distribution requirement described below for one or more taxable years absent the availability of the deficiency dividend procedure or might result in a larger portion of our dividends being treated as ordinary income to our stockholders.

Distribution Requirements

        Each taxable year, we must distribute dividends, other than capital gain dividends and deemed distributions of retained capital gain, to our stockholders in an aggregate amount at least equal to:

        We must pay such distributions in the taxable year to which they relate, or in the following taxable year if either (i) we declare the distribution before we timely file our federal income tax return for the year and pay the distribution on or before the first regular dividend payment date after such declaration or (ii) we declare the distribution in October, November or December of the taxable year, payable to stockholders of record on a specified day in any such month, and we actually pay the dividend before the end of January of the following year. The distributions under clause (i) are taxable to the stockholders in the year in which paid, and the distributions in clause (ii) are treated as paid on December 31st of the prior taxable year. In both instances, these distributions relate to our prior taxable year for purposes of the 90% distribution requirement.

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        We will pay federal income tax on taxable income, including net capital gain, that we do not distribute to stockholders. Furthermore, if we fail to distribute during a calendar year, or by the end of January following the calendar year in the case of distributions with declaration and record dates falling in the last three months of the calendar year, at least the sum of:

we will incur a 4% nondeductible excise tax on the excess of such required distribution over the amounts we actually distribute.

        We may elect to retain and pay income tax on the net long-term capital gain we receive in a taxable year. If we so elect, we will be treated as having distributed any such retained amount for purposes of the 4% nondeductible excise tax described above. We intend to make timely distributions sufficient to satisfy the annual distribution requirements and to avoid corporate income tax and the 4% nondeductible excise tax.

        It is possible that, from time to time, we may experience timing differences between the actual receipt of income and actual payment of deductible expenses and the inclusion of that income and deduction of such expenses in arriving at our REIT taxable income. For example, we may not deduct recognized capital losses from our "REIT taxable income." Further, it is possible that, from time to time, we may be allocated a share of net capital gain attributable to the sale of depreciated property that exceeds our allocable share of cash attributable to that sale. As a result of the foregoing, we may have less cash than is necessary to distribute taxable income sufficient to avoid corporate income tax and the excise tax imposed on certain undistributed income or even to meet the 90% distribution requirement. In such a situation, we may need to borrow funds or, if possible, pay taxable dividends of our capital stock or debt securities.

        We may satisfy the 90% distribution test with taxable distributions of our stock or debt securities. The IRS has issued private letter rulings to other REITs treating certain distributions that are paid partly in cash and partly in stock as dividends that would satisfy the REIT annual distribution requirement and qualify for the dividends paid deduction for federal income tax purposes. Those rulings may be relied upon only by taxpayers to whom they were issued, but we could request a similar ruling from the IRS. In addition, the IRS previously issued a revenue procedure creating a temporary safe harbor authorizing publicly traded REITs to make elective cash/stock dividends, but that temporary safe harbor has expired. Accordingly, it is unclear whether and to what extent we will be able to make taxable dividends payable in cash and stock. We have no current intention to make a taxable dividend payable in our stock.

        Under certain circumstances, we may be able to correct a failure to meet the distribution requirement for a year by paying "deficiency dividends" to our stockholders in a later year. We may include such deficiency dividends in our deduction for dividends paid for the earlier year. Although we may be able to avoid income tax on amounts distributed as deficiency dividends, we will be required to pay interest to the IRS based upon the amount of any deduction we take for deficiency dividends.

Recordkeeping Requirements

        To avoid a monetary penalty, we must request on an annual basis information from our stockholders designed to disclose the actual ownership of our outstanding stock. We have complied and intend to continue to comply with these requirements.

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Failure to Qualify

        If we fail to satisfy one or more requirements for REIT qualification, other than the gross income tests and the asset tests, we could avoid disqualification if our failure is due to reasonable cause and not to willful neglect and we pay a penalty of $50,000 for each such failure. In addition, there are relief provisions for a failure of the gross income tests and asset tests, as described in "—Gross Income Tests" and "—Asset Tests."

        If we fail to qualify as a REIT in any taxable year, and no relief provision applies, we would be subject to federal income tax and any applicable alternative minimum tax on our taxable income at regular corporate rates. In calculating our taxable income in a year in which we fail to qualify as a REIT, we would not be able to deduct amounts paid out to stockholders. In fact, we would not be required to distribute any amounts to stockholders in that year. In such event, to the extent of our current and accumulated earnings and profits, distributions to stockholders generally would be taxable as ordinary income. Subject to certain limitations of the federal income tax laws, corporate stockholders may be eligible for the dividends received deduction and stockholders taxed at individual rates may be eligible for the reduced federal income tax rate of 20% on such dividends. Unless we qualified for relief under specific statutory provisions, we also would be disqualified from taxation as a REIT for the four taxable years following the year during which we ceased to qualify as a REIT. We cannot predict whether in all circumstances we would qualify for such statutory relief.

Taxation of Taxable U.S. Stockholders

        As used herein, the term "U.S. stockholder" means a beneficial owner of our capital stock that for U.S. federal income tax purposes is:

        If a partnership, entity or arrangement treated as a partnership for federal income tax purposes holds our capital stock, the federal income tax treatment of a partner in the partnership will generally depend on the status of the partner and the activities of the partnership. If you are a partner in a partnership holding our capital stock, you should consult your tax advisor regarding the consequences of the ownership and disposition of our capital stock by the partnership.

        As long as we qualify as a REIT, a taxable U.S. stockholder must generally take into account as ordinary income distributions made out of our current or accumulated earnings and profits that we do not designate as capital gain dividends or retained long-term capital gain. For purposes of determining whether a distribution is made out of our current or accumulated earnings and profits, our earnings and profits will be allocated first to our preferred stock dividends and then to our common stock dividends. Our dividends will not qualify for the dividends received deduction generally available to corporations. In addition, dividends paid to a U.S. stockholder generally will not qualify for the 20% tax rate for "qualified dividend income." The maximum tax rate for qualified dividend income received by U.S. stockholders taxed at individual rates is currently 20%. The maximum tax rate on qualified dividend income is lower than the maximum tax rate on ordinary income, which is currently 39.6%. Qualified dividend income generally includes dividends paid to U.S. stockholders taxed at individual

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rates by domestic C corporations and certain qualified foreign corporations. Because we are not generally subject to federal income tax on the portion of our REIT taxable income distributed to our stockholders (See—"Taxation of Our Company" above), our dividends generally will not be eligible for the 20% rate on qualified dividend income. As a result, our ordinary REIT dividends generally will be taxed at the higher tax rate applicable to ordinary income. However, the 20% tax rate for qualified dividend income will apply to our ordinary REIT dividends (i) attributable to dividends received by us from non-REIT corporations during the taxable year, such as a TRS, and (ii) to the extent attributable to income upon which we have paid corporate income tax (e.g., to the extent that we distribute less than 100% of our taxable income). In general, to qualify for the reduced tax rate on qualified dividend income, a stockholder must hold our capital stock for more than 60 days during the 121 day period beginning on the date that is 60 days before the date on which our capital stock becomes ex-dividend. Certain individuals, estates or trusts whose income exceeds certain thresholds are also subject to a 3.8% Medicare tax on dividends received from us.

        A U.S. stockholder generally will take into account as long-term capital gain any distributions that we designate as capital gain dividends without regard to the period for which the U.S. stockholder has held our stock. We generally will designate our capital gain dividends as either 20% or 25% rate distributions. See "—Capital Gains and Losses." A corporate U.S. stockholder, however, may be required to treat up to 20% of certain capital gain dividends as ordinary income.

        We may elect to retain and pay income tax on the net long-term capital gain that we receive in a taxable year. In that case, to the extent that we designate such amount in a timely notice to such stockholder, a U.S. stockholder would be taxed on its proportionate share of our undistributed long-term capital gain. The U.S. stockholder would receive a credit for its proportionate share of the tax we paid. The U.S. stockholder would increase the basis in its stock by the amount of its proportionate share of our undistributed long-term capital gain, minus its share of the tax we paid.

        A U.S. stockholder will not incur tax on a distribution in excess of our current and accumulated earnings and profits if the distribution does not exceed the adjusted basis of the U.S. stockholder in the shares of capital stock on which the distribution was paid. Instead, the distribution will reduce the adjusted basis of such stock. A U.S. stockholder will recognize a distribution in excess of both our current and accumulated earnings and profits and the U.S. stockholder's adjusted basis in his or her stock as long-term capital gain, or short-term capital gain if the shares of stock have been held for one year or less, assuming the shares of stock are a capital asset in the hands of the U.S. stockholder. In addition, if we declare a distribution in October, November, or December of any year that is payable to a U.S. stockholder of record on a specified date in any such month, such distribution shall be treated as both paid by us and received by the U.S. stockholder on December 31 of such year, provided that we actually pay the distribution during January of the following calendar year.

        U.S. stockholders may not include in their individual income tax returns any of our net operating losses or capital losses. Instead, these losses are generally carried over by us for potential offset against our future income. Taxable distributions from us and gain from the disposition of our capital stock will not be treated as passive activity income and, therefore, U.S. stockholders generally will not be able to apply any "passive activity losses," such as losses from certain types of limited partnerships in which the U.S. stockholder is a limited partner, against such income. In addition, taxable distributions from us and gain from the disposition of our capital stock generally will be treated as investment income for purposes of the investment interest limitations. We will notify U.S. stockholders after the close of our taxable year as to the portions of the distributions attributable to that year that constitute ordinary income, return of capital and capital gain.

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Taxation of U.S. Stockholders on the Disposition of Capital Stock

        A U.S. stockholder who is not a dealer in securities must generally treat any gain or loss realized upon a taxable disposition of our stock as long-term capital gain or loss if the U.S. stockholder has held our stock for more than one year and otherwise as short-term capital gain or loss. In general, a U.S. stockholder will realize gain or loss in an amount equal to the difference between the sum of the fair market value of any property and the amount of cash received in such disposition and the U.S. stockholder's adjusted tax basis. A stockholder's adjusted tax basis generally will equal the U.S. stockholder's acquisition cost, increased by the excess of net capital gains deemed distributed to the U.S. stockholder (discussed above) less tax deemed paid on such gains and reduced by any returns of capital. However, a U.S. stockholder must treat any loss upon a sale or exchange of stock held by such stockholder for six months or less as a long-term capital loss to the extent of capital gain dividends and any other actual or deemed distributions from us that such U.S. stockholder treats as long-term capital gain. All or a portion of any loss that a U.S. stockholder realizes upon a taxable disposition of shares of our stock may be disallowed if the U.S. stockholder purchases other stock within 30 days before or after the disposition.

Taxation of U.S. Stockholders on a Conversion of Preferred Stock

        Except as provided below, (i) a U.S. stockholder generally will not recognize gain or loss upon the conversion of preferred stock into our common stock, and (ii) a U.S. stockholder's basis and holding period in our common stock received upon conversion generally will be the same as those of the converted preferred stock (but the basis will be reduced by the portion of adjusted tax basis allocated to any fractional share exchanged for cash). Any of our shares of common stock received in a conversion that are attributable to accrued and unpaid dividends that are in arrears on the converted preferred stock will be treated as a distribution that is potentially taxable as a dividend. Cash received upon conversion in lieu of a fractional share generally will be treated as a payment in a taxable exchange for such fractional share, and gain or loss will be recognized on the receipt of cash in an amount equal to the difference between the amount of cash received and the adjusted tax basis allocable to the fractional share deemed exchanged. This gain or loss will be long-term capital gain or loss if the U.S. stockholder has held the preferred stock for more than one year at the time of conversion. U.S. stockholders are urged to consult with their tax advisors regarding the federal income tax consequences of any transaction by which such holder exchanges shares of our common stock received on a conversion of preferred stock for cash or other property.

Taxation of U.S. Stockholders on a Redemption of Preferred Stock

        A redemption of preferred stock will be treated under Section 302 of the Code as a distribution that is taxable as dividend income (to the extent of our current or accumulated earnings and profits), unless the redemption satisfies certain tests set forth in Section 302(b) of the Code enabling the redemption to be treated as a sale of the preferred stock (in which case the redemption will be treated in the same manner as a sale described above in "—Taxation of U.S. Stockholders on the Disposition of Capital Stock"). The redemption will satisfy such tests if it (i) is "substantially disproportionate" with respect to the U.S. stockholder's interest in our stock, (ii) results in a "complete termination" of the U.S. stockholder's interest in all of our classes of stock or (iii) is "not essentially equivalent to a dividend" with respect to the stockholder, all within the meaning of Section 302(b) of the Code. In determining whether any of these tests have been met, stock considered to be owned by the holder by reason of certain constructive ownership rules set forth in the Code, as well as stock actually owned, generally must be taken into account. Because the determination as to whether any of the three alternative tests of Section 302(b) of the Code described above will be satisfied with respect to any particular U.S. stockholder of preferred stock depends upon the facts and circumstances at the time that the determination must be made, prospective investors are urged to consult their tax advisors to

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determine such tax treatment. If a redemption of preferred stock does not meet any of the three tests described above, the redemption proceeds will be taxable as a dividend, as described above in "—Taxation of Taxable U.S. Stockholders." In that case, a U.S. stockholder's adjusted tax basis in the redeemed preferred stock will be transferred to such U.S. stockholder's remaining share holdings in us. If the U.S. stockholder does not retain any of our stock, such basis could be transferred to a related person that holds our stock or it may be lost.

        Under proposed Treasury regulations, if any portion of the amount received by a U.S. stockholder on a redemption of any class of our preferred stock is treated as a distribution with respect to our stock but not as a taxable dividend, then such portion will be allocated to all shares of stock of the redeemed class held by the redeemed stockholder just before the redemption on a pro-rata, share-by-share, basis. The amount applied to each share of stock will first reduce the redeemed U.S. stockholder's basis in that share and any excess after the basis is reduced to zero will result in taxable gain. If the redeemed stockholder has different bases in its shares of stock, then the amount allocated could reduce some of the basis in certain shares of stock while reducing all the basis and giving rise to taxable gain in others. Thus, the redeemed U.S. stockholder could have gain even if such U.S. stockholder's basis in all its shares of stock of the redeemed class exceeded such portion.

        The proposed Treasury regulations permit the transfer of basis in the redeemed shares of preferred stock to the redeemed U.S. stockholder's remaining, unredeemed shares of preferred stock of the same class (if any), but not to any other class of stock held (directly or indirectly) by the redeemed U.S. stockholder. Instead, any unrecovered basis in the redeemed shares of preferred stock would be treated as a deferred loss to be recognized when certain conditions are satisfied. The proposed Treasury regulations would be effective for transactions that occur after the date the regulations are published as final Treasury regulations. There can, however, be no assurance as to whether, when and in what particular form such proposed Treasury regulations will ultimately be finalized.

Capital Gains and Losses

        A taxpayer generally must hold a capital asset for more than one year for gain or loss derived from its sale or exchange to be treated as long-term capital gain or loss. The highest marginal individual income tax rate currently is 39.6%. The maximum tax rate on long-term capital gain applicable to taxpayers taxed at individual rates is 20% for sales and exchanges of assets held for more than one year. The maximum tax rate on long-term capital gain from the sale or exchange of "Section 1250 property," or depreciable real property, is 25%, which applies to the lesser of the total amount of the gain or the accumulated depreciation on the Section 1250 property. Certain individuals, trusts and estates whose income exceeds certain thresholds are also subject to a 3.8% Medicare tax on gain from the sale of our securities.

        With respect to distributions that we designate as capital gain dividends and any retained capital gain that we are deemed to distribute, we generally may designate whether such a distribution is taxable to U.S. stockholders taxed at individual rates currently at a 20% or 25% rate. Thus, the tax rate differential between capital gain and ordinary income for those taxpayers may be significant. In addition, the characterization of income as capital gain or ordinary income may affect the deductibility of capital losses. A non-corporate taxpayer may deduct capital losses not offset by capital gains against its ordinary income only up to a maximum annual amount of $3,000. A non-corporate taxpayer may carry forward unused capital losses indefinitely. A corporate taxpayer must pay tax on its net capital gain at ordinary corporate rates. A corporate taxpayer may deduct capital losses only to the extent of capital gains, with unused losses being carried back three years and forward five years.

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Taxation of Tax-Exempt Stockholders

        Tax-exempt entities, including qualified employee pension and profit sharing trusts and individual retirement accounts, generally are exempt from federal income taxation. However, they are subject to taxation on their unrelated business taxable income ("UBTI"). Although many investments in real estate generate UBTI, the IRS has issued a ruling that dividend distributions from a REIT to an exempt employee pension trust do not constitute UBTI. Based on that ruling, amounts that we distribute to tax-exempt stockholders generally should not constitute UBTI. However, if a tax-exempt stockholder were to finance (or be deemed to finance) its acquisition of capital stock with debt, a portion of the income that it receives from us would constitute UBTI pursuant to the "debt-financed property" rules. Moreover, social clubs, voluntary employee benefit associations, supplemental unemployment benefit trusts and qualified group legal services plans that are exempt from taxation under special provisions of the federal income tax laws are subject to different UBTI rules, which generally will require them to characterize distributions that they receive from us as UBTI. Finally, in certain circumstances, a qualified employee pension or profit sharing trust that owns more than 10% of our capital stock must treat a percentage of the dividends that it receives from us as UBTI. Such percentage is equal to the gross income we derive from an unrelated trade or business, determined as if we were a pension trust, divided by our total gross income for the year in which we pay the dividends. That rule applies to a pension trust holding more than 10% of our capital stock only if:

Taxation of Non-U.S. Stockholders

        The term "non-U.S. stockholder" means a beneficial owner of our capital stock that is not a U.S. stockholder, a partnership (or entity treated as a partnership for federal income tax purposes) or a tax-exempt stockholder. The rules governing federal income taxation of nonresident alien individuals, foreign corporations, foreign partnerships, and other foreign stockholders are complex. This section is only a summary of such rules. We urge non-U.S. stockholders to consult their own tax advisors to determine the effect of federal, state, and local income tax laws on the purchase, ownership and sale of our capital stock, including any reporting requirements.

Distributions

        A non-U.S. stockholder that receives a distribution that is not attributable to gain from our sale or exchange of a "United States real property interest" ("USRPI"), as defined below, and that we do not designate as a capital gain dividend or retained capital gain will recognize ordinary income to the extent that we pay such distribution out of our current or accumulated earnings and profits. A withholding tax equal to 30% of the gross amount of the distribution ordinarily will apply to such distribution unless an applicable tax treaty reduces or eliminates the tax. However, if a distribution is treated as effectively connected with the non-U.S. stockholder's conduct of a U.S. trade or business, the non-U.S. stockholder generally will be subject to federal income tax on the distribution at graduated rates, in the same manner as U.S. stockholders are taxed with respect to such distribution, and a

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non-U.S. stockholder that is a corporation also may be subject to the 30% branch profits tax with respect to that distribution. We plan to withhold U.S. income tax at the rate of 30% on the gross amount of any such distribution paid to a non-U.S. stockholder unless either:

        A non-U.S. stockholder will not incur tax on a distribution in excess of our current and accumulated earnings and profits if the excess portion of such distribution does not exceed the adjusted basis of the non-U.S. stockholder in the shares of capital stock on which the distribution was paid. Instead, the excess portion of such distribution will reduce the adjusted basis of such stock. A non-U.S. stockholder will be subject to tax on a distribution that exceeds both our current and accumulated earnings and profits and the adjusted basis of its capital stock, if the non-U.S. stockholder otherwise would be subject to tax on gain from the sale or disposition of its capital stock, as described below. We must withhold 15% of any distribution that exceeds our current and accumulated earnings and profits. Consequently, although we intend to withhold at a rate of 30% on the entire amount of any distribution, to the extent that we do not do so, we will withhold at a rate of 15% on any portion of a distribution not subject to withholding at a rate of 30%. Because we generally cannot determine at the time we make a distribution whether the distribution will exceed our current and accumulated earnings and profits, we normally will withhold tax on the entire amount of any distribution at the same rate as we would withhold on a dividend. However, a non-U.S. stockholder may claim a refund of amounts that we withhold if we later determine that a distribution in fact exceeded our current and accumulated earnings and profits.

        For any year in which we qualify as a REIT, a non-U.S. stockholder may incur tax on distributions that are attributable to gain from our sale or exchange of a USRPI under the Foreign Investment in Real Property Act of 1980 ("FIRPTA"). A USRPI includes certain interests in real property and stock in corporations at least 50% of whose assets consist of interests in real property. Under FIRPTA, subject to the exceptions discussed below, a non-U.S. stockholder is taxed on distributions attributable to gain from sales of USRPIs as if such gain were effectively connected with a U.S. business of the non-U.S. stockholder. A non-U.S. stockholder thus would be taxed on such a distribution at the normal capital gains rates applicable to U.S. stockholders, subject to applicable alternative minimum tax and a special alternative minimum tax in the case of a nonresident alien individual. A non-U.S. corporate stockholder not entitled to treaty relief or exemption also may be subject to the 30% branch profits tax on such a distribution.

        Capital gain distributions to the holders of a shares of a class of our capital stock that are attributable to our sale of real property will be treated as ordinary dividends rather than as gain from the sale of USRPI, as long as (i) (a) such class of capital stock is treated as being "regularly traded" on an established securities market in the United States, and (b) the non-U.S. stockholder did not own more than 10% of such class of capital stock at any time during the one-year period preceding the distribution or (ii) the non-U.S. stockholder was treated as a "qualified shareholder" or "qualified foreign pension fund," as discussed below. As a result, non-U.S. stockholders owning 10% or less of the applicable class of our capital stock generally will be subject to withholding tax on such capital gain distributions in the same manner as they are subject to withholding tax on ordinary dividends. We believe that our common stock, Series B Preferred Stock and Series C Preferred Stock are regularly traded on an established securities market in the United States. If a class of our capital stock is not regularly traded on an established securities market in the United States or the non-U.S. stockholder owned more than 10% of the applicable class of our capital stock at any time during the one-year

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period preceding the distribution, capital gain distributions that are attributable to our sale of real property would be subject to tax under FIRPTA, as described in the preceding paragraph. In such case, we must withhold 35% of any distribution that we could designate as a capital gain dividend. A non-U.S. stockholder may receive a credit against its tax liability for the amount we withhold. Moreover, if a non-U.S. stockholder disposes of shares of our capital stock during the 30-day period preceding a dividend payment, and such non-U.S. stockholder (or a person related to such non-U.S. stockholder) acquires or enters into a contract or option to acquire that capital stock within 61 days of the first day of the 30-day period described above, and any portion of such dividend payment would, but for the disposition, be treated as a USRPI capital gain to such non-U.S. stockholder, then such non-U.S. stockholder shall be treated as having USRPI capital gain in an amount that, but for the disposition, would have been treated as USRPI capital gain.

        Although the law is not clear on the matter, it appears that amounts we designate as retained capital gains in respect of our capital stock held by U.S. stockholders generally should be treated with respect to non-U.S. stockholders in the same manner as actual distributions by us of capital gain dividends. Under this approach, a non-U.S. stockholder would be able to offset as a credit against its federal income tax liability resulting from its proportionate share of the tax paid by us on such retained capital gains, and to receive from the IRS a refund to the extent of the non-U.S. stockholder's proportionate share of such tax paid by us exceeds its actual federal income tax liability, provided that the non-U.S. stockholder furnishes required information to the IRS on a timely basis.

Dispositions

        Non-U.S. stockholders could incur tax under FIRPTA with respect to gain realized upon a disposition of our capital stock if we are a United States real property holding corporation during a specified testing period. If at least 50% of a REIT's assets are USRPIs, then the REIT will be a United States real property holding corporation. We believe that we are and will continue to be a United States real property holding corporation based on our investment strategy. However, despite our status as a United States real property holding corporation, a non-U.S. stockholder generally would not incur tax under FIRPTA on gain from the sale of our capital stock if we are a "domestically controlled qualified investment entity." A domestically controlled qualified investment entity includes a REIT in which, at all times during a specified testing period, less than 50% in value of its shares are held directly or indirectly by non-U.S. stockholders. We cannot assure you that this test will be met. If a class of our capital stock is regularly traded on an established securities market, an additional exception to the tax under FIRPTA will be available with respect to that class of our capital stock, even if we do not qualify as a domestically controlled qualified investment entity at the time the non-U.S. stockholder sells shares of that class of our capital stock. Under that exception, the gain from such a sale by such a non-U.S. stockholder will not be subject to tax under FIRPTA if:

        As noted above, we believe our common stock, Series B Preferred Stock and Series C Preferred Stock are regularly traded on an established securities market.

        If the gain on the sale of shares of our capital stock were taxed under FIRPTA, a non-U.S. stockholder would be taxed on that gain in the same manner as U.S. stockholders, subject to applicable alternative minimum tax and a special alternative minimum tax in the case of nonresident alien

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individuals. Furthermore, a non-U.S. stockholder generally will incur tax on gain not subject to FIRPTA if:

Qualified Shareholders

        Subject to the exception discussed below, any distribution to a "qualified shareholder" who holds REIT stock directly or indirectly (through one or more partnerships) will not be subject to U.S. tax as income effectively connected with a U.S. trade or business and thus will not be subject to special withholding rules under FIRPTA. While a "qualified shareholder" will not be subject to FIRPTA withholding on REIT distributions, certain investors of a "qualified shareholder" (i.e., non-U.S. persons who hold interests in the "qualified shareholder" (other than interests solely as a creditor), and hold more than 10% of the stock of such REIT (whether or not by reason of the investor's ownership in the "qualified shareholder")) may be subject to FIRPTA withholding.

        In addition, a sale of shares of our capital stock by a "qualified shareholder" who holds such shares directly or indirectly (through one or more partnerships) will not be subject to federal income taxation under FIRPTA. As with distributions, certain investors of a "qualified shareholder" (i.e., non-U.S. persons who hold interests in the "qualified shareholder" (other than interests solely as a creditor), and hold more than 10% of the stock of such REIT (whether or not by reason of the investor's ownership in the "qualified shareholder")) may be subject to FIRPTA withholding on a sale of our shares.

        A "qualified shareholder" is a foreign person that (i) either is eligible for the benefits of a comprehensive income tax treaty which includes an exchange of information program and whose principal class of interests is listed and regularly traded on one or more recognized stock exchanges (as defined in such comprehensive income tax treaty), or is a foreign partnership that is created or organized under foreign law as a limited partnership in a jurisdiction that has an agreement for the exchange of information with respect to taxes with the United States and has a class of limited partnership units representing greater than 50% of the value of all the partnership units that is regularly traded on the NYSE or NASDAQ markets, (ii) is a qualified collective investment vehicle (defined below), and (iii) maintains records on the identity of each person who, at any time during the foreign person's taxable year, is the direct owner of 5% or more of the class of interests or units (as applicable) described in (i), above.

        A qualified collective investment vehicle is a foreign person that (i) would be eligible for a reduced rate of withholding under the comprehensive income tax treaty described above, even if such entity holds more than 10% of the stock of such REIT, (ii) is publicly traded, is treated as a partnership under the Code, is a withholding foreign partnership, and would be treated as a "United States real property holding corporation" if it were a domestic corporation, or (iii) is designated as such by the Secretary of the Treasury and is either (a) fiscally transparent within the meaning of Section 894 of the Code, or (b) required to include dividends in its gross income, but is entitled to a deduction for distributions to its investors.

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Qualified Foreign Pension Funds

        Any distribution to a "qualified foreign pension fund" (or an entity all of the interests of which are held by a "qualified foreign pension fund") who holds REIT stock directly or indirectly (through one or more partnerships) will not be subject to U.S. tax as income effectively connected with a U.S. trade or business and thus will not be subject to special withholding rules under FIRPTA. In addition, a sale of shares of our capital stock by a "qualified foreign pension fund" that holds such shares directly or indirectly (through one or more partnerships) will not be subject to federal income taxation under FIRPTA.

        A qualified foreign pension fund is any trust, corporation, or other organization or arrangement (i) which is created or organized under the law of a country other than the United States, (ii) which is established to provide retirement or pension benefits to participants or beneficiaries that are current or former employees (or persons designated by such employees) of one or more employers in consideration for services rendered, (iii) which does not have a single participant or beneficiary with a right to more than 5% of its assets or income, (iv) which is subject to government regulation and provides annual information reporting about its beneficiaries to the relevant tax authorities in the country in which it is established or operates, and (v) with respect to which, under the laws of the country in which it is established or operates, (a) contributions to such organization or arrangement that would otherwise be subject to tax under such laws are deductible or excluded from the gross income of such entity or taxed at a reduced rate, or (b) taxation of any investment income of such organization or arrangement is deferred or such income is taxed at a reduced rate.

FATCA Withholding

        Under the Foreign Account Tax Compliance Act ("FATCA"), a U.S. withholding tax at a 30% rate will be imposed on dividends paid to non-U.S. stockholders if certain disclosure requirements related to U.S. accounts or ownership are not satisfied. In addition, if those disclosure requirements are not satisfied, a U.S. withholding tax at a 30% rate will be imposed, for taxable years beginning after December 31, 2018, on proceeds from the sale of our capital stock received by certain non-U.S. stockholders. If payment of withholding taxes is required, non-U.S. stockholders that are otherwise eligible for an exemption from, or reduction of, U.S. withholding taxes with respect of such dividends and proceeds will be required to seek a refund from the IRS to obtain the benefit or such exemption or reduction. We will not pay any additional amounts in respect of any amounts withheld.

Conversion of Preferred Stock

        The conversion of our preferred stock into our common stock may be a taxable exchange for a non-U.S. stockholder if our preferred stock constitutes a USRPI. Even if our preferred stock constitutes a USRPI, provided our common stock also constitutes a USRPI, a non-U.S. stockholder generally will not recognize gain or loss upon a conversion of preferred stock into our common stock so long as certain FIRPTA-related reporting requirements are satisfied. If our preferred stock constitutes a USRPI and such requirements are not satisfied, however, a conversion will be treated as a taxable exchange of preferred stock for our common stock. Such a deemed taxable exchange will be subject to tax under FIRPTA at the rate of tax, including any applicable capital gains rates, that would apply to a U.S. stockholder of the same type (e.g., a corporate or a non-corporate stockholder, as the case may be) on the excess, if any, of the fair market value of such non-U.S. stockholder's common stock received over such non-U.S. stockholder's adjusted basis in its preferred stock. Collection of such tax will be enforced by a refundable withholding tax at a rate of 10% of the value of the common stock.

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        Non-U.S. stockholders are urged to consult with their tax advisors regarding the federal income tax consequences of any transaction by which such non-U.S. stockholder exchanges shares of our common stock received on a conversion of preferred stock for cash or other property.

Redemption of Preferred Stock

        For a discussion of the treatment of a redemption of preferred stock, see "—Taxation of U.S. Stockholders on a Redemption of Preferred Stock."

Information Reporting Requirements and Withholding

        We will report to our stockholders and to the IRS the amount of distributions we pay during each calendar year, and the amount of tax we withhold, if any. Under the backup withholding rules, a stockholder may be subject to backup withholding, at a rate of 28%, with respect to distributions unless the stockholder:

        A stockholder who does not provide us with its correct taxpayer identification number also may be subject to penalties imposed by the IRS. Any amount paid as backup withholding will be creditable against the stockholder's income tax liability. In addition, we may be required to withhold a portion of capital gain distributions to any stockholders who fail to certify their non-foreign status to us.

        Backup withholding will generally not apply to payments of dividends made by us or our paying agents, in their capacities as such, to a non-U.S. stockholder provided that the non-U.S. stockholder furnishes to us or our paying agent the required certification as to its non-U.S. status, such as providing a valid IRS Form W-8BEN, W-8BEN-E or W-8ECI, or certain other requirements are met. Notwithstanding the foregoing, backup withholding may apply if either we or our paying agent has actual knowledge, or reason to know, that the holder is a U.S. person that is not an exempt recipient. Payments of the proceeds from a disposition or a redemption effected outside the U.S. by a non-U.S. stockholder made by or through a foreign office of a broker generally will not be subject to information reporting or backup withholding. However, information reporting (but not backup withholding) generally will apply to such a payment if the broker has certain connections with the U.S. unless the broker has documentary evidence in its records that the beneficial owner is a non-U.S. stockholder and specified conditions are met or an exemption is otherwise established. Payment of the proceeds from a disposition by a non-U.S. stockholder of stock made by or through the U.S. office of a broker is generally subject to information reporting and backup withholding unless the non-U.S. stockholder certifies under penalties of perjury that it is not a U.S. person and satisfies certain other requirements, or otherwise establishes an exemption from information reporting and backup withholding.

        Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be refunded or credited against the stockholder's federal income tax liability if certain required information is furnished to the IRS. Stockholders should consult their tax advisors regarding application of backup withholding to them and the availability of, and procedure for obtaining an exemption from, backup withholding.

        Under FATCA, a U.S. withholding tax at a 30% rate will be imposed on dividends received by U.S. stockholders who own shares through foreign accounts or foreign intermediaries if certain disclosure requirements related to U.S. accounts or ownership are not satisfied. In addition, if those disclosure requirements are not satisfied, a U.S. withholding tax at a 30% rate will be imposed, for

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taxable years beginning after December 31, 2018, on proceeds from the sale of our capital stock by U.S. stockholders who own our capital stock through foreign accounts or foreign intermediaries. We will not pay any additional amounts in respect of any amounts withheld.

Other Tax Consequences

Tax Aspects of Our Investments in Our Operating Partnership and Subsidiary Partnerships

        The following discussion summarizes certain federal income tax considerations applicable to our direct or indirect investments in our operating partnership and any subsidiary partnerships or limited liability companies that we form or acquire (each individually a "Partnership" and, collectively, the "Partnerships"). The discussion does not cover state or local tax laws or any federal tax laws other than income tax laws.

        Classification as Partnerships.    We will be entitled to include in our income our distributive share of each Partnership's income and to deduct our distributive share of each Partnership's losses only if such Partnership is classified for federal income tax purposes as a partnership (or an entity that is disregarded for federal income tax purposes if the entity is treated as having only one owner for federal income tax purposes) rather than as a corporation or an association taxable as a corporation. An unincorporated entity with at least two owners or members will be classified as a partnership, rather than as a corporation, for federal income tax purposes if it:

        Under the check-the-box regulations, an unincorporated entity with at least two owners or members may elect to be classified either as an association taxable as a corporation or as a partnership. If such an entity fails to make an election, it generally will be treated as a partnership (or an entity that is disregarded for federal income tax purposes if the entity is treated as having only one owner for federal income tax purposes) for federal income tax purposes. Our operating partnership intends to be classified as a partnership for federal income tax purposes and will not elect to be treated as an association taxable as a corporation under the check-the-box regulations.

        A publicly-traded partnership is a partnership whose interests are traded on an established securities market or are readily tradable on a secondary market or the substantial equivalent thereof. A publicly-traded partnership will not, however, be treated as a corporation for any taxable year if, for each taxable year beginning after December 31, 1987 in which it was classified as a publicly-traded partnership, 90% or more of the partnership's gross income for such year consists of certain passive-type income, including real property rents, gains from the sale or other disposition of real property, interest, and dividends (the "90% passive income exception"). Treasury Regulations (the "PTP regulations") provide limited safe harbors from the definition of a publicly-traded partnership. Pursuant to one of those safe harbors (the "private placement exclusion"), interests in a partnership will not be treated as readily tradable on a secondary market or the substantial equivalent thereof if (i) all interests in the partnership were issued in a transaction or transactions that were not required to be registered under the Securities Act, and (ii) the partnership does not have more than 100 partners at any time during the partnership's taxable year. In determining the number of partners in a partnership, a person owning an interest in a partnership, grantor trust, or S corporation that owns an interest in the partnership is treated as a partner in such partnership only if (i) substantially all of the value of the owner's interest in the entity is attributable to the entity's direct or indirect interest in the partnership and (ii) a principal purpose of the use of the entity is to permit the partnership to satisfy the 100-partner limitation. We believe our operating partnership has qualified and will continue to qualify for the private placement exclusion. We expect that any other Partnership that we form in the

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future will qualify for the private placement exclusion. Our operating partnership's partnership agreement contains provisions enabling its general partner to take such steps as are necessary or appropriate to prevent the issuance and transfers of interests in our operating partnership from causing our operating partnership to be treated as a publicly traded partnership under the PTP regulations.

        We have not requested, and do not intend to request, a ruling from the IRS that our operating partnership will be classified as a partnership for federal income tax purposes. If for any reason our operating partnership were taxable as a corporation, rather than as a partnership, for federal income tax purposes, we likely would not be able to qualify as a REIT unless we qualified for certain relief provisions. See "—Gross Income Tests" and "—Asset Tests." In addition, any change in a Partnership's status for tax purposes might be treated as a taxable event, in which case we might incur tax liability without any related cash distribution. See "—Distribution Requirements." Further, items of income and deduction of such Partnership would not pass through to its partners, and its partners would be treated as stockholders for tax purposes. Consequently, such Partnership would be required to pay income tax at corporate rates on its net income, and distributions to its partners would constitute dividends that would not be deductible in computing such Partnership's taxable income.

Income Taxation of the Partnerships and their Partners

        Partners, Not the Partnerships, Subject to Tax.    A partnership is not a taxable entity for federal income tax purposes. Rather, we are required to take into account our allocable share of each Partnership's income, gains, losses, deductions, and credits for any taxable year of such Partnership ending within or with our taxable year, without regard to whether we have received or will receive any distribution from such Partnership. For taxable years beginning after December 31, 2016, however, the tax liability for adjustments to a Partnership's tax returns made as a result of an audit by the IRS will be imposed on the Partnership itself in certain circumstances absent an election to the contrary.

        Partnership Allocations.    Although a partnership agreement generally will determine the allocation of income and losses among partners, such allocations will be disregarded for tax purposes if they do not comply with the provisions of the federal income tax laws governing partnership allocations. If an allocation is not recognized for federal income tax purposes, the item subject to the allocation will be reallocated in accordance with the partners' interests in the partnership, which will be determined by taking into account all of the facts and circumstances relating to the economic arrangement of the partners with respect to such item. Each Partnership's allocations of taxable income, gain, and loss are intended to comply with the requirements of the federal income tax laws governing partnership allocations.

        Tax Allocations With Respect to Partnership Properties.    Income, gain, loss, and deduction attributable to appreciated or depreciated property that is contributed to a partnership in exchange for an interest in the partnership must be allocated in a manner such that the contributing partner is charged with, or benefits from, respectively, the unrealized gain or unrealized loss associated with the property at the time of the contribution. In the case of a contribution of property, the amount of the unrealized gain or unrealized loss ("built-in gain" or "built-in loss") is generally equal to the difference between the fair market value of the contributed property at the time of contribution and the adjusted tax basis of such property at the time of contribution (a "book-tax difference"). Any property purchased for cash initially will have an adjusted tax basis equal to its fair market value, resulting in no book-tax difference. In connection with our initial public offering, we acquired a significant portion of our portfolio in exchange for interests in our operating partnership, which resulted in book-tax differences. Furthermore, our operating partnership may admit partners in the future in exchange for a contribution of property, which will result in book-tax differences.

        Allocations with respect to book-tax differences are solely for federal income tax purposes and do not affect the book capital accounts or other economic or legal arrangements among the partners. The

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U.S. Treasury Department has issued regulations requiring partnerships to use a "reasonable method" for allocating items with respect to which there is a book-tax difference and outlining several reasonable allocation methods. Under certain available methods, the carryover basis in the hands of our operating partnership of properties contributed to us would cause us to be allocated lower amounts of depreciation deductions for tax purposes than would be allocated to us if all our properties were to have a tax basis equal to their fair market value at the time of contribution. We intend to use the "traditional" method for the book-tax difference caused by the contribution of our initial portfolio to our operating partnership in connection with our initial public offering. The "traditional" method is generally the method that will result in the least favorable tax results for us. We have not yet decided what method will be used to account for book-tax differences caused by our operating partnership admitting partners in the future in exchange for contributions of property.

Sale of a Partnership's Property

        Generally, any gain realized by a Partnership on the sale of property held by the Partnership for more than one year will be long-term capital gain, except for any portion of such gain that is treated as depreciation or cost recovery recapture. Under Section 704(c) of the Code, any gain or loss recognized by a Partnership on the disposition of contributed properties will be allocated first to the partners of the Partnership who contributed such properties to the extent of their built-in gain or loss on those properties for federal income tax purposes. The partners' built-in gain or loss on such contributed properties will equal the difference between the partners' proportionate share of the book value of those properties and the partners' tax basis allocable to those properties at the time of the contribution as reduced for any decrease in the "book-tax difference." See "—Income Taxation of the Partnerships and Their Partners—Tax Allocations With Respect to Partnership Properties." Any remaining gain or loss recognized by the Partnership on the disposition of the contributed properties, and any gain or loss recognized by the Partnership on the disposition of the other properties, will be allocated among the partners in accordance with their respective percentage interests in the Partnership.

        Our share of any gain realized by a Partnership on the sale of any property held by the Partnership as inventory or other property held primarily for sale to customers in the ordinary course of the Partnership's trade or business will be treated as income from a prohibited transaction that is subject to a 100% penalty tax. Such prohibited transaction income also may have an adverse effect upon our ability to satisfy the income tests for REIT status. See "—Gross Income Tests." We do not presently intend to acquire or hold or to allow any Partnership to acquire or hold any property that represents inventory or other property held primarily for sale to customers in the ordinary course of our or such Partnership's trade or business.

Legislative or Other Actions Affecting REITs

        The present federal income tax treatment of REITs may be modified, possibly with retroactive effect, by legislative, judicial or administrative action at any time. The REIT rules are constantly under review by persons involved in the legislative process and by the IRS and the U.S. Treasury Department which may result in statutory changes as well as revisions to regulations and interpretations. Additionally, several of the tax considerations described herein are currently under review and are subject to change. Prospective securityholders are urged to consult with their own tax advisors regarding the effect of potential changes to the federal tax laws on an investment in our securities.

State and Local Taxes

        We and/or you may be subject to taxation by various states and localities, including those in which we or a securityholder transacts business, owns property or resides. The state and local tax treatment may differ from the federal income tax treatment described above. Consequently, you should consult your own tax advisors regarding the effect of state and local tax laws upon an investment in our securities.

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SELLING STOCKHOLDERS

        Information about selling stockholders of STAG Industrial, Inc., where applicable, will be set forth in a prospectus supplement, in a post-effective amendment, or in filings we make with the SEC which are incorporated into this prospectus by reference.

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PLAN OF DISTRIBUTION

        We or any selling stockholder may sell the securities offered by this prospectus from time to time in one or more transactions, including without limitation:

        In addition, we may issue the securities as a dividend or distribution to our existing stockholders or other securityholders.

        The prospectus supplement with respect to any offering of securities will include the following information:

Any initial public offering price, discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time. The distribution of the offered securities may be effected from time to time in one or more transactions:

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Sale through Underwriters or Dealers

        If underwriters are used in the sale, the underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless we inform you otherwise in the applicable prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, and the underwriters will be obligated to purchase all of the offered securities if they purchase any of them. The underwriters may change from time to time any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers.

        We will describe the name or names of any underwriters, dealers or agents and the purchase price of the securities in a prospectus supplement relating to the securities.

        In connection with the sale of the securities, underwriters may receive compensation from us or from purchasers of the securities, for whom they may act as agents, in the form of discounts, concessions or commissions. Underwriters may sell the securities to or through dealers, and these dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents, which is not expected to exceed that customary in the types of transactions involved. Underwriters, dealers and agents that participate in the distribution of the securities may be deemed to be underwriters, and any discounts or commissions they receive from us, and any profit on the resale of the securities they realize may be deemed to be underwriting discounts and commissions, under the Securities Act. The prospectus supplement will identify any underwriter or agent and will describe any compensation they receive from us.

        Underwriters could make sales in privately negotiated transactions and/or any other method permitted by law, including sales deemed to be an "at-the-market" offering, sales made directly on the NYSE, the existing trading market for our shares of common stock, or sales made to or through a market maker other than on an exchange. The name of any such underwriter or agent involved in the offer and sale of our securities, the amounts underwritten, and the nature of its obligations to take our securities will be described in the applicable prospectus supplement.

        Unless otherwise specified in the prospectus supplement, each series of the securities will be a new issue with no established trading market, other than our shares of common stock, the Series B Preferred Stock and the Series C Preferred Stock, which are each currently listed on the NYSE. We currently intend to list any shares of common stock sold pursuant to this prospectus on the NYSE. We may elect to list any series of preferred stock on an exchange, but are not obligated to do so. It is possible that one or more underwriters may make a market in a series of the securities, but underwriters will not be obligated to do so and may discontinue any market making at any time without notice. Therefore, we can give no assurance about the liquidity of the trading market for any of the securities.

        Under agreements we may enter into, we may indemnify underwriters, dealers, and agents who participate in the distribution of the securities against certain liabilities, including liabilities under the Securities Act, or contribute with respect to payments that the underwriters, dealers or agents may be required to make.

        In compliance with the guidelines of the Financial Industry Regulatory Authority, Inc. ("FINRA"), the aggregate maximum discount, commission, agency fees or other items constituting underwriting compensation to be received by any FINRA member or independent broker-dealer will not exceed 8% of the gross offering proceeds from any offering pursuant to this prospectus and any applicable prospectus supplement or pricing supplement, as the case may be.

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        To facilitate the offering of securities, certain persons participating in the offering may engage in transactions that stabilize, maintain, or otherwise affect the price of the securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the offering of more securities than we sold to them. In these circumstances, these persons would cover such over-allotments or short positions by making purchases in the open market or by exercising their over-allotment option, if any. In addition, these persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. These transactions may be discontinued at any time.

        From time to time, we may engage in transactions with these underwriters, dealers, and agents in the ordinary course of business. Underwriters have from time to time in the past provided, and may from time to time in the future provide, investment banking services to us for which they have in the past received, and may in the future receive, customary fees.

Direct Sales and Sales through Agents

        We may sell the securities directly. In this case, no underwriters or agents would be involved. We also may sell the securities through agents designated by us from time to time. In the applicable prospectus supplement, we will name any agent involved in the offer or sale of the offered securities, and we will describe any commissions payable to the agent. Unless we inform you otherwise in the applicable prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

        We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. We will describe the terms of any sales of these securities in the applicable prospectus supplement.

Remarketing Arrangements

        Securities also may be offered and sold, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and the terms of its agreements, if any, with us and its compensation will be described in the applicable prospectus supplement.

Delayed Delivery Contracts

        If we so indicate in the applicable prospectus supplement, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities from us at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future. The contracts would be subject only to those conditions described in the applicable prospectus supplement. The applicable prospectus supplement will describe the commission payable for solicitation of those contracts.

General Information

        We may have agreements with the underwriters, dealers, agents and remarketing firms to indemnify them against certain civil liabilities, including liabilities under the Securities Act, or to contribute with respect to payments that the underwriters, dealers, agents or remarketing firms may be required to make. Underwriters, dealers, agents and remarketing firms may be customers of, engage in transactions with or perform services for us in the ordinary course of their businesses.

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WHERE YOU CAN FIND MORE INFORMATION

        We file annual, quarterly, and special reports, proxy statements and other information with the SEC. Our SEC filings are available to the public over the internet at the SEC's web site at http://www.sec.gov. You also may read and copy any document we file with the SEC at the SEC's public reference room at 100 F Street, N.E., Washington, DC 20549. You also may obtain copies of our SEC filings at prescribed rates by writing to the Public Reference Section of the SEC at 100 F Street, N.E., Washington, DC 20549. Please call l-800-SEC-0330 for further information on the operations at the public reference room. Our SEC filings are also available at the offices of the New York Stock Exchange, 20 Broad Street, New York, New York 10005, or by accessing our website at www.stagindustrial.com; however, the information found on our website is not considered part of this prospectus or any accompanying prospectus supplement.

        Statements contained in this prospectus as to the contents of any contract or other document are not necessarily complete, and in each instance reference is made to the copy of that contract or other document filed as an exhibit to the registration statement, each such statement being qualified in all respects by that reference and the exhibits and schedules thereto. For further information about us and the securities offered by this prospectus, you should refer to the registration statement and such exhibits and schedules which may be obtained from the SEC at its principal office in Washington, DC upon payment of any fees prescribed by the SEC.


INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

        The documents listed below have been filed by us under the Exchange Act with the SEC and are incorporated by reference in this prospectus:

        All documents that we file (but not those that we furnish) with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act on or after the date of this prospectus and prior to the termination of the offering of any securities covered by this prospectus and the accompanying prospectus supplement shall be deemed to be incorporated by reference into this prospectus and will automatically update and supersede the information in this prospectus, the accompanying prospectus supplement and any previously filed documents.

        This means that important information about us appears or will appear in these documents and will be regarded as appearing in this prospectus. To the extent that information appearing in a document filed later is inconsistent with prior information, the later statement will control and the prior information, except as modified or superseded, will no longer be a part of this prospectus.

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        Copies of all documents which are incorporated by reference in this prospectus and the applicable prospectus supplement (not including the exhibits to such information, unless such exhibits are specifically incorporated by reference) will be provided without charge to each person, including any beneficial owner of the securities offered by this prospectus, to whom this prospectus or the applicable prospectus supplement is delivered, upon written or oral request. Requests should be directed to our Corporate Secretary, One Federal Street, 23rd Floor, Boston, MA 02110 (telephone number: (614) 574-4777). You also may obtain copies of these filings, at no cost, by accessing our website at www.stagindustrial.com; however, the information found on our website is not considered part of this prospectus or any accompanying prospectus supplement.


LEGAL MATTERS

        The validity of the securities offered by means of this prospectus has been passed upon for us by DLA Piper LLP (US). Certain U.S. federal income tax matters have been passed upon for us by Hunton & Williams LLP.


EXPERTS

        The financial statements and management's assessment of the effectiveness of internal control over financial reporting (which is included in Management's Report on Internal Control over Financial Reporting) incorporated in this prospectus by reference to the annual report on Form 10-K for the year ended December 31, 2016 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

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Table of Contents

 

$500,000,000

LOGO

Common Stock



PROSPECTUS SUPPLEMENT



Baird

BB&T Capital Markets

BofA Merrill Lynch

BMO Capital Markets

BTIG

Cantor Fitzgerald & Co.

Capital One Securities

Citigroup

Evercore ISI

Jefferies

Morgan Stanley

Raymond James

RBC Capital Markets

Wells Fargo Securities

November 13, 2017