AMARIN CORP PLC\UK — Director's Dealing 2019

Jul 3, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2019-07-01

Reporting Person: Kalb Michael Wayne (SVP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-07-01	Ordinary Shares	M	50000	$2.19	Acquired	70840	Direct
2019-07-01	Ordinary Shares	S	50000	$19.6654	Disposed	20840	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-07-01	Stock Option (Right to Buy)	$2.19	M	50000	Disposed	2026-07-01	Ordinary Shares (50000)	Direct

Footnotes

F1: The option exercises and sales 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: Please see the section titled "Remarks" below for additional information.

F4: Includes 289 shares purchased under the Issuer's 2017 Employee Stock Purchase Plan on May 31, 2019.

F5: On July 1, 2016, the Reporting Person was granted an option to purchase 625,000 Ordinary Shares under the Amarin Corporation plc 2011 Stock Incentive Plan (the "Plan"). The shares subject to this option shall vest as follows: 25% of the total number of underlying shares shall vest on July 1, 2017, and the remaining 75% of the underlying shares shall vest ratably over the subsequent 36 months.