AMARIN CORP PLC\UK — Director's Dealing 2012

Mar 5, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2012-03-01

Reporting Person: Ketchum Steven B (Senior Vice President)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-03-01	Stock Option (right to buy)	$8.77	A	600000	Acquired	2022-03-01	Ordinary Shares (600000)	Direct

Footnotes

F1: The Stock Option vests and becomes exercisable according to the following schedule: 25% of the total number of Ordinary Shares shall vest on February 16, 2013 and the remaining 75% of the underlying shares shall vest ratably over the subsequent 36 months.

F2: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.