AMARIN CORP PLC\UK — Director's Dealing 2023

Jul 5, 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
2023-07-01	Ordinary Shares	M	16667	—	Acquired	33584	Direct
2023-07-01	Ordinary Shares	F	8209	$1.19	Disposed	25375	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-07-01	Restricted Stock Units	$0.00	M	16667	Disposed		Ordinary Shares (16667)	Direct

Footnotes

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

F2: On February 21, 2023, the Issuer's Remuneration Committee of its Board of Directors certified the achievement of certain performance metrics for this Restricted Stock Unit ("RSU") award, resulting in the grant of 50,000 RSUs scheduled to vest in three equal installments on each of the first, second and third anniversary of the grant date of July 1, 2022, subject to the Reporting Person's continued service to the Issuer.

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.