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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(Print or Type Responses)

1. Name and Address of Reporting Person * Cox Russell J.   2. Issuer Name and Ticker or Trading Symbol Jazz Pharmaceuticals plc [JAZZ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, Sales and Marketing (Last) (First) (Middle) C/O JAZZ PHARMACEUTICALS PLC, 45 FITZWILLIAM SQUARE 3. Date of Earliest Transaction (Month/Day/Year) 01/18/2012 (Street) DUBLIN 2, L2  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 Ordinary Shares 01/18/2012   A(1)   19,005 A (2) 19,005 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

Incentive Stock Option (right to buy)

$ 8.23

01/18/2012

A(1)

45,200

(3)

08/24/2020

Ordinary Shares

45,200

(4)

45,200

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Cox Russell J. C/O JAZZ PHARMACEUTICALS PLC 45 FITZWILLIAM SQUARE DUBLIN 2, L2			SVP, Sales and Marketing

Signatures

/s/ Carol A. Gamble as attorney in fact for Russell J. Cox		01/18/2012
**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)	Acquisition made in connection with the conversion of securities in the merger (the "Merger") pursuant to the Agreement and Plan of Merger and Reorganization by and among the Issuer, Jaguar Merger Sub Inc., Jazz Pharmaceuticals, Inc. and Seamus Mulligan, solely in his capacity as indemnitors' representative. The effective date of the Merger is January 18, 2012. This report is being filed by the Reporting Person solely to report the acquisition of securities of the Issuer made in connection with the Merger. The Reporting Person has filed a separate Form 4 to reflect the corresponding disposition of securities of Jazz Pharmaceuticals, Inc. made in connection with the Merger.
(2)	Received in exchange for an equal number of shares of Jazz Pharmaceuticals, Inc. common stock in connection with the Merger. On the effective date of the Merger, the closing price of JAZZ was $47.34 per share.
(3)	This option has a vesting schedule of one fourth vested on July 21, 2011 and the remainder vesting in 36 equal monthly installments thereafter.
(4)	Received in the Merger in exchange for an option to acquire the same number of shares of common stock of Jazz Pharmaceuticals, Inc. at the same exercise price and on substantially the same terms.

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