X0306 4 2020-07-13 false 0000897448 AMARIN CORP PLC\UK AMRN 0001508596 Peterson Kristine C/O AMARIN PHARMA, INC. 440 US HIGHWAY 22 BRIDGEWATER NJ 08807 true false false false Stock Option (Right to Buy) 6.62 2020-07-13 4 A false 34805.00 0.00 A 2030-07-13 Ordinary Shares 34805.00 34805.00 D Restricted Stock Units 0.00 2020-07-13 4 A false 27191.00 0.00 A Ordinary Shares 27191.00 27191.00 D On July 13, 2020, the Reporting Person was granted an option to purchase 34,805 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 earlier of (i) the anniversary of the grant date of July 13, 2020 or (ii) the Issuer's annual general meeting of shareholders in 2021. The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one Ordinary Share or cash in lieu thereof at the Issuer's discretion, with settlement to be made on a deferred basis, specifically upon the non-employee director's separation of service with the Issuer. On July 13, 2020, the Reporting Person was granted 27,191 RSUs under the Plan. The RSUs vest in equal annual installments over a three-year period, with each installment vesting upon the earlier of (i) the anniversary of the grant date of July 13, 2020 or (ii) the Issuer's annual general meeting of shareholders in such year. Not applicable. These grants are made in accordance with the Issuer's previously disclosed non-employee director compensation program. In the event of a Change of Control (as defined in the Plan), each of the grants described in this Form 4 vests in full. This number does not represent the aggregate number of Ordinary Shares of the Issuer this Reporting Person holds or has a right to acquire in the form of stock options and restricted stock units granted to such Reporting Person. /s/ Joseph Kennedy, by power of attorney 2020-07-15