AMARIN CORP PLC\UK — Director's Dealing 2020

Feb 4, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2020-01-31

Reporting Person: Kennedy Joseph T (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-01-31	Ordinary Shares	M	36000.00	—	Acquired	161723.00	Direct
2020-01-31	Ordinary Shares	M	26000.00	—	Acquired	187723.00	Direct
2020-01-31	Ordinary Shares	M	12734.00	—	Acquired	200457.00	Direct
2020-01-31	Ordinary Shares	F	39632.00	$19.04	Disposed	160825.00	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-01-31	Restricted Stock Units	$0.00	M	36000.00	Disposed		Ordinary Shares (36000.00)	Direct
2020-01-31	Restricted Stock Units	$0.00	M	26000.00	Disposed		Ordinary Shares (26000.00)	Direct
2020-01-31	Restricted Stock Units	$0.00	M	12734.00	Disposed		Ordinary Shares (12734.00)	Direct
2020-02-03	Stock Option (Right to Buy)	$18.39	A	96500.00	Acquired	2030-02-03	Ordinary Shares (96500.00)	Direct

Footnotes

F1: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F2: On February 1, 2017, the Reporting Person was granted 108,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan (the "Plan"). These RSUs vest in three equal installments on each of January 31, 2018, January 31, 2019, and January 31, 2020. The third and final vesting event occurred on January 31, 2020.

F3: Not applicable.

F4: On February 1, 2018, the Reporting Person was granted 78,000 RSUs under the Plan. These RSUs vest in three equal installments on each of January 31, 2019, January 31, 2020, and January 31, 2021. The second vesting event occurred on January 31, 2020.

F5: On February 1, 2019, the Reporting Person was granted 38,200 RSUs under the Plan. These RSUs vest in three equal installments on each of January 31, 2020, January 31, 2021, and January 31, 2022. The first vesting event occurred on January 31, 2020.

F6: Represents withholding by the Issuer of shares in respect of tax liability incident to the vesting of a security issued in accordance with Rule 16b-3, and not a market sale of securities.

F7: Please see the section titled "Remarks" below for additional information.

F8: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F9: On February 3, 2020, the Reporting Person was granted an option to purchase 96,500 Ordinary Shares under the Plan. The shares subject to this option shall vest and become exercisable in 16 equal quarterly installments starting on April 30, 2020.