Transaction Details

Footnotes

Effective April 11, 2025, the Issuer implemented a ratio change that one (1) American Depositary Share ("ADS") currently represents twenty (20) Ordinary Shares ("ADS Ratio Change"). Proportionate adjustments were made to the Issuer's outstanding equity awards. The amount of securities reported on this Form 4 reflect the ADS Ratio Change. | On February 1, 2023, the Reporting Person was granted 1,690 Restricted Stock Units ("RSUs") under the Amarin Corporation plc 2011 Stock Incentive Plan (the "Plan"). These RSUs vest in three equal installments on each of January 31, 2024, January 31, 2025, and January 31, 2026. | Not applicable. | 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. | On February 1, 2024, the Reporting Person was granted 5,500 RSUs under the Amarin Corporation plc 2011 Stock Incentive Plan (the "Plan"). These RSUs vest in three equal installments on each of January 31, 2025, January 31, 2026, and January 31, 2027. | Each RSU represents a contingent right to receive twenty Ordinary Shares or cash in lieu thereof at the Issuer's discretion. | On February 1, 2026, the Reporting Person was granted 6,167 RSUs under the Plan. These RSUs vest in three equal installments on each of January 31, 2027, January 31, 2028 and January 31, 2029. | On February 1, 2026, the Reporting Person was granted an option to purchase 27,750 ADSs under the Plan. The shares subject to this option shall vest and become exercisable over three years, with 33% to vest on the first anniversary of the grant date and the balance to vest ratably over the subsequent 8 calendar quarters on the first day of each May, August, November and February.