AMARIN CORP PLC\UK — Director's Dealing 2022

May 20, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMARIN CORP PLC\UK (AMRN)
CIK: 0000897448
Period of Report: 2022-05-16

Reporting Person: Zulueta Alfonso G (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-05-16	Stock Option (Right to Buy)	$1.50	A	223719.00	Acquired	2032-05-16	Ordinary Shares (223719.00)	Direct
2022-05-16	Restricted Stock Units	$0.00	A	180000.00	Acquired		Ordinary Shares (180000.00)	Direct

Footnotes

F1: On May 16, 2022, the Reporting Person was granted an option to purchase 223,719 Ordinary Shares under the Amarin Corporation plc 2020 Stock Incentive Plan (the "Plan"). The option shall vest and become exercisable in a single annual installment upon the one-year anniversary of the grant date of May 16, 2022.

F2: The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.

F3: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion.

F4: On May 16, 2022, the Reporting Person was granted 180,000 RSUs under the Plan. The RSUs vest in equal annual installments over a three-year period, with each installment vesting upon the anniversary of the grant date of May 16, 2022.

F5: Not applicable.