AMARIN CORP PLC\UK — Director's Dealing 2023

Aug 2, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2023-07-31

Reporting Person: Berg Aaron (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-07-31	Ordinary Shares	M	23883	—	Acquired	545145	Direct
2023-07-31	Ordinary Shares	F	11763	$1.19	Disposed	533382	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-07-31	Restricted Stock Unit	$0.00	M	23883	Acquired		Ordinary Shares (23883)	Direct

Footnotes

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

F2: On August 2, 2021, the Reporting Person was granted 71,650 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan. These RSUs vest in three equal installments on each of July 31, 2022, July 31, 2023 and July 31, 2024.

F3: Not applicable

F4: Includes 10,502 shares purchased under the Issuer's 2017 Employee Stock Purchase Plan on May 31, 2023.

F5: 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.

F6: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.