AMARIN CORP PLC\UK — Director's Dealing 2023

Jun 22, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2023-06-20

Reporting Person: Reilly Thomas Charles (SVP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-06-20	Ordinary Shares	M	33334	—	Acquired	33334	Direct
2023-06-20	Ordinary Shares	F	16417	$1.19	Disposed	16917	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-06-20	Restricted Stock Units	$0.00	M	33334	Disposed		Ordinary Shares (33334)	Direct

Footnotes

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

F2: On July 1, 2022, the Reporting Person was granted 100,000 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (the "Plan"). These RSUs vest in three equal installments on each of June 20, 2023, June 20, 2024 and June 20, 2025.

F3: Not applicable.

F4: 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.

F5: Each RSU represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.