X0306 4 2022-05-02 false 0000897448 AMARIN CORP PLC\UK AMRN 0001878953 Marks Jason M. C/O AMARIN PHARMA, INC. 440 US HIGHWAY 22 BRIDGEWATER NJ 08807 false true false false EVP,Chief Global Legal Officer Restricted Stock Units 0.00 2022-05-02 4 A false 150000.00 0.00 A Ordinary Shares 150000.00 150000.00 D Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion. On May 2, 2022, the Reporting Person was granted 150,000 RSUs under the Amarin Corporation plc 2020 Stock Incentive Plan (the "2020 Plan"). These RSUs vest in three equal installments on each of May 2, 2023, May 2, 2024 and May 2, 2025. Not applicable. The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share. In the case of a Change of Control (as defined in the 2020 Plan), the grants described in this Form 4 vest in full. As of the date of this Form 4, the Reporting Person owns or holds the right to acquire an aggregate of 758,000 Ordinary Shares of the Issuer in the form of stock options and RSUs outstanding under the Issuer's stock incentive plans, including but not limited to certain performance-based RSUs that are earned only if certain pre-defined operational milestones are achieved and, in certain cases, then vest only if the recipient remains with the company for an extended period of time. /s/ Jason M. Marks 2022-05-03