FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * GABELLI MARIO J   2. Issuer Name and Ticker or Trading Symbol GAMCO INVESTORS, INC. ET AL [GBL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman & CEO (Last) (First) (Middle) C/O GAMCO INVESTORS, INC, ONE CORPORATE CENTER 3. Date of Earliest Transaction (Month/Day/Year) 12/29/2017 (Street) RYE, NY 10580 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 12/29/2017   G   5,000 D $ 0 15,000 I By: GGCP, Inc. Class B Common Stock               18,313,741 (1) I By: GGCP Holdings, LLC (2) Class A Common Stock               2,000 D   Class B Common Stock               453,295 (1) D   Class A Common Stock               4,393,055 I By: Gabelli Securities, Inc.

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
GABELLI MARIO J C/O GAMCO INVESTORS, INC ONE CORPORATE CENTER RYE, NY 10580	X	X	Chairman & CEO
GGCP, INC. 140 GREENWICH AVENUE GREENWICH, CT 06830		X
GGCP Holdings LLC 140 GREENWICH AVENUE GREENWICH, CT 06830		X

Signatures

/s/ Douglas R. Jamieson, Attorney-In-Fact for MARIO J. GABELLI, GGCP, INC., and GGCP HOLDINGS, LCC		01/02/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Pursuant to a resolution approved by the Issuer's Board of Directors, as of the date of this filing, there are 600,230 shares of Class B Stock that can be converted into Class A Stock.
(2)	These shares of the Issuer's Class B Stock are held by GGCP Holdings, LLC ("Holdings") via GGCP, Inc. ("GGCP"). The Reporting Person may be deemed to have beneficial ownership of the Class B Stock held by Holdings on the basis of (i) his position as the Chief Executive Officer of, a director of, and the controlling shareholder of, GGCP, which is the manager and a majority member of Holdings, and (ii) certain profit interests in Holdings. The Reporting Person disclaims any beneficial ownership of Class B Stock held by Holdings except to the extent of his pecuniary interest therein.

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