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 * LEVINE PETER   2. Issuer Name and Ticker or Trading Symbol CITRIX SYSTEMS INC [CTXS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, Virtualization & Mgt (Last) (First) (Middle) C/O CITRIX SYSTEMS, INC., 851 WEST CYPRESS CREEK ROAD 3. Date of Earliest Transaction (Month/Day/Year) 05/01/2009 (Street) FORT LAUDERDALE, FL 33309 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 05/01/2009   M   150,000 A $ 0.72 155,838 D   Common Stock 05/01/2009   S   150,000 D $ 27.5331 (1) 5,838 D   Common Stock               1,027 I (2) The Peter Levine Children's Trust FBO Oliver T. Levine UAD 12/30/2008 (2) Common Stock               1,027 I (3) By The Peter Levine Children's Trust FBO Tatym A. Levine UAD 12/30/2008 (3) Common Stock               5,016 I (4) By The Summit Family Trust (4)

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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

Stock Option (Right to Buy)

$ 0.72

05/01/2009

M

150,000

10/19/2008

10/19/2012

Common Stock

150,000

$ 0.72

523,844

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LEVINE PETER C/O CITRIX SYSTEMS, INC. 851 WEST CYPRESS CREEK ROAD FORT LAUDERDALE, FL 33309			SVP, Virtualization & Mgt

Signatures

/s/Antonio G. Gomes, Attorney-in-Fact for Peter Levine		05/05/2009
**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)	The shares sold on this date were sold in multiple transactions. This price is the weighted average sales price per share of all shares sold on this date. The actual sale prices per share range from $27.3500 to $27.9040. The reporting person hereby undertakes to provide upon request by the staff of the Securities and Exchange Commission, Citrix Systems, Inc. or any security holders of Citrix Systems, Inc., full information regarding the number of shares sold at each separate price.
(2)	These shares are held in a trust for the benefit of the reporting person's children. The reporting person's spouse is trustee of the trust. The reporting person disclaims beneficial ownership with respect to shares held by The Peter Levine Children's Trust FBO Oliver T. Levine UAD 12/30/2008, except to the extent of his pecuniary interest therein.
(3)	These shares are held in a trust for the benefit of the reporting person's children. The reporting person's spouse is trustee of the trust. The reporting person disclaims beneficial ownership with respect to shares held by The Peter Levine Children's Trust FBO Tatym A. Levine UAD 12/30/2008, except to the extent of his pecuniary interest therein.
(4)	Shares received as merger consideration by SP Partners Investment LP pursuant to the acquisition of XenSource, Inc. by Citrix Systems, Inc. and distributed to The Summit Family Trust ("Summit"), an entity of which the reporting person is the trustee and has voting and dispositive power. The reporting person disclaims beneficial ownership with respect to shares held by Summit, except to the extent of his pecuniary interest therein.

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