AMARIN CORP PLC\UK — Director's Dealing 2018

Feb 2, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2018-02-01

Reporting Person: Salyer Mark (Chief Commercial Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-02-01	Restricted Stock Units	$0.00	A	78000	Acquired		Ordinary Shares (78000)	Direct
2018-02-01	Stock Options (Right to Buy)	$3.80	A	117000	Acquired	2028-02-01	Ordinary Shares (117000)	Direct

Footnotes

F1: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F2: On February 1, 2018, the Reporting Person was granted 78,000 RSUs under the Amarin Corporation plc 2011 Stock Incentive Plan. These RSUs vest in three equal installments on each of January 31, 2019, January 31, 2020 and January 31, 2021.

F3: Not applicable.

F4: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F5: On February 1, 2018, the Reporting Person was granted an option to purchase 117,000 Ordinary Shares under the Amarin Corporation plc 2011 Stock Incentive Plan. The shares subject to this option shall vest and become exercisable in 48 equal monthly installments on the last day of each month starting on February 28, 2018.