Sec Form 4 Filing - Anderson Joseph @ AMARIN CORP PLC\UK - 2012-07-10

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 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 Anderson Joseph 2. Issuer Name and Ticker or Trading Symbol AMARIN CORP PLC\UK [ AMRN] 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 AMARIN PHARMA, INC., 1430 ROUTE 206, SUITE 200 3. Date of Earliest Transaction (MM/DD/YY) 07/10/2012 (Street) BEDMINSTER, NJ07921 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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) $ 14.4 07/10/2012 A 30,000 ( 1 ) 07/10/2022 Ordinary Shares ( 2 ) 30,000 $ 0 30,000 ( 3 ) D ( 3 ) ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Anderson Joseph C/O AMARIN PHARMA, INC. 1430 ROUTE 206, SUITE 200 BEDMINSTER, NJ07921 X Signatures /s/ Frederick Ahlholm, by power of attorney 07/12/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The stock option was granted to Joseph Anderson (the "Reporting Person") on July 10, 2012 pursuant to and in accordance with the Issuer's non-employee director compensation policy and the Issuer's 2011 Stock Incentive Plan, as amended, and will vest on the first anniversary of the grant date. ( 2 )The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share. ( 3 )The Reporting Person is a member of Abingworth LLP ("ALLP"). ALLP is the investment manager to a number of investment funds that include Abingworth Bioventures V L.P. ("ABV V") and Abingworth Bioventures V Co-Invest Growth Equity Fund LP ("AGE") (together, the "Abingworth Funds"). Under an agreement between the Reporting Person and ALLP, of the 30,000 options reported herein, the Reporting Person is deemed to hold 12,000 of the options for the benefit of ABV V, 12,000 of the options for the benefit of AGE, and 4,200 of the options for the benefit of ALLP (such 28,200 options, collectively, the "Abingworth Options"), and any Ordinary Shares issuable upon exercise of the Abingworth Options, for the benefit of ALLP on behalf of itself and the Abingworth Funds, and must exercise the Abingworth Options solely upon the direction of ALLP. ( 4 )The Reporting Person's interest in the securities reported herein is limited to the extent of his pecuniary interest, if any, therein. This report shall not be deemed an admission that the Reporting Person, ALLP, each Abingworth Fund or any other person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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