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 * DOW STEPHEN M   2. Issuer Name and Ticker or Trading Symbol CITRIX SYSTEMS INC [CTXS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O SEVIN ROSEN FUNDS, 13455 NOEL ROAD, SUITE 1670 3. Date of Earliest Transaction (Month/Day/Year) 10/19/2007 (Street) DALLAS, TX 75240 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ 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 Common Stock 10/19/2007   A   1,690,211 A (1) 1,690,211 (1) I See Footnote 1 Common Stock 10/19/2007   A   33,613 A (2) 33,613 (2) I See Footnote 2 Common Stock               259,016 (3) I See Footnote 3 Common Stock               2,500 D

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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
DOW STEPHEN M C/O SEVIN ROSEN FUNDS 13455 NOEL ROAD, SUITE 1670 DALLAS, TX 75240	X

Signatures

John V. Jaggers, As Attorney-In-Fact		10/23/2007
**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)	Represents 1,690,211 of such common shares held by Sevin Rosen Fund IX L.P.("SRF IX"). Received in exchange for 4,160,536 shares of XenSource, Inc. ("XenSource") common stock in connection with the merger of XenSource into Citrix Systems, Inc. ("Citrix"). On the effective date of the acquisition, the closing price of Citrix's common stock was $39.65. The issuance of such shares was approved by the Board of Directors of Citrix pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended. Dow is a managing member of SRB Associates IX L.L.C.the general partner of SRB Associates IX L.P., the general partner of SRF IX, and may be deemed to beneficially own the Citrix shares held by SRFIX. Dow disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
(2)	Represents 33,613 of such common shares held by Sevin Rosen IX Affiliates Fund L.P.("SRIX AFF"). Received in exchange for 82,744 shares of XenSource, Inc. ("XenSource") common stock in connection with the merger of XenSource into Citrix Systems, Inc. ("Citrix"). On the effective date of the acquisition, the closing price of Citrix's common stock was $39.65. The issuance of such shares was approved by the Board of Directors of Citrix pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended. Dow is a managing member of SRB Associates IX L.L.C.the general partner of SRB Associates IX L.P., the general partner of SRIX AFF, and may be deemed to beneficially own the Citrix shares held by SRIX AFF. Dow disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
(3)	Shares held by the Dow Family Trust. Stephen L. Dow ("Dow") is a trustee and beneficiary of the Dow Trust.

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