AMARIN CORP PLC\UK — Director's Dealing 2024

Feb 2, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2024-01-31

Reporting Person: Berg Aaron (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-01-31	Ordinary Shares	M	34567	—	Acquired	629149	Direct
2024-01-31	Ordinary Shares	F	18868	$1.24	Disposed	610281	Direct
2024-01-31	Ordinary Shares	M	44933	—	Acquired	655214	Direct
2024-01-31	Ordinary Shares	F	21954	$1.24	Disposed	633260	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-01-31	Restricted Stock Unit	$0.00	M	34567	Disposed		Ordinary Shares (34567)	Direct
2024-01-31	Restricted Stock Unit	$0.00	M	44933	Disposed		Ordinary Shares (44933)	Direct

Footnotes

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

F2: On February 4, 2022, the Reporting Person was granted 103,700 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2020 Stock Incentive Plan (as amended, the "Plan"). These RSUs vest in three equal installments on each of January 31, 2023, January 31, 2024 and January 31, 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: On February 21, 2023, the Reporting Person was granted 134,800 RSUs under the Plan. These RSUs vest in three equal installments on each of January 31, 2024, January 31, 2025 and January 31, 2026.

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