AMARIN CORP PLC\UK — Director's Dealing 2020

Jan 3, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2020-01-03

Reporting Person: Zakrzewski Joseph S (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-01-03	Ordinary Shares	M	300000	$3.40	Acquired	384547	Direct
2020-01-03	Ordinary Shares	S	300000	$20.9429	Disposed	84547	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-01-03	Stock Option (Right to Buy)	$3.40	M	300000	Disposed	2020-11-11	Ordinary Shares (300000)	Direct

Footnotes

F1: The option exercises and sale transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

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

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.71 to $21.22, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

F4: Please see the section title "Remarks" below for additional information.

F5: The stock option granted to the Reporting Person is fully vested as of the date hereof.