Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
WILSON KAREN 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)
VP, Finance & PAO
(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)   10,292 A (2) 10,292 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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) $ 27.46 01/18/2012   A(1)   13,007     (3) 03/09/2021 Ordinary Shares 13,007 (4) 13,007 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WILSON KAREN J
C/O JAZZ PHARMACEUTICALS PLC
45 FITZWILLIAM SQUARE
DUBLIN 2, L2 
      VP, Finance & PAO  

Signatures

 /s/ Carol A. Gamble as attorney in fact for Karen J. Wilson   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 February 7, 2012 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.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.