Every Form 4 that Amarin Corp Plc (AMRN) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow AMRN and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full AMRN filings page.
Amarin Corporation SVP & CFO Peter L. Fishman reported equity compensation activity. On August 1, 2026, 313 Restricted Stock Units vested and were converted into 313 American Depositary Shares (ADSs) after a prior ADS ratio change. To satisfy tax obligations, 155 ADSs were withheld by the company at $14.26 per share under Rule 16b-3, which the company notes is not a market sale. Each RSU represents a contingent right to receive twenty Ordinary Shares or cash at Amarin’s discretion.
Amarin Corporation plc SVP & CFO Peter L. Fishman acquired 2,447 American Depositary Shares (ADS) on July 1, 2026 through the vesting and settlement of equity awards. To cover related taxes, 1,206 ADS were withheld by the company at $15.94 per ADS, which was not a market sale. Following these transactions, he directly holds 7,461 ADS. These awards relate to 4,894 RSUs granted on January 10, 2025 under the 2020 Stock Incentive Plan, vesting in two tranches through July 1, 2026.
Amarin Corporation executive David Paul Keenan, EVP and Chief Operating Officer, reported equity-compensation activity in American Depositary Shares (ADSs) tied to vesting of Restricted Stock Units granted on 10 January 2025. On 1 July 2026, 1,926 ADSs were withheld to satisfy taxes and 3,688 RSUs linked to ADSs were reported. After these transactions he directly holds 13,470 ADSs.
AMARIN CORP PLC reported compensation-related equity activity for EVP and Chief Scientific Officer Steven B. Ketchum. On July 1, 2026 he acquired 3,688 American Depositary Shares through a derivative exercise linked to restricted stock units, while 1,887 ADS were disposed as shares withheld to cover tax obligations. Following these events, he directly holds 42,680 ADS.
Amarin Corporation EVP and Chief Legal Officer Jonathan Provoost reported equity compensation activity dated July 1, 2026. He acquired 3,688 American Depositary Shares (ADS) in connection with Restricted Stock Units (RSUs), while 1,264 ADS were withheld to cover tax obligations, which the company notes is not a market sale. The disclosure also references RSU awards, including a 7,376-unit grant vesting in two tranches in 2026, with each RSU representing a contingent right to receive twenty ordinary shares or cash.
AMARIN CORP PLC (AMRN) President and CEO Aaron Berg reported routine equity compensation activity involving Restricted Stock Units (RSUs) and related tax withholding. On June 26, 2026, 6,250 RSUs converted into 6,250 American Depositary Shares (ADSs), recorded as an option/RSU exercise with a transaction price of $0.00 per ADS.
To cover tax obligations from this vesting, the issuer withheld 3,197 ADSs at $16.35 per ADS, a non-market disposition coded as tax withholding under Rule 16b-3. Following these transactions, Berg directly held 88,845 ADSs. A footnote explains that one ADS represents twenty ordinary shares and that the amounts shown already reflect this ADS ratio change.
Amarin director Patrice Eadon Bonfiglio reported routine equity compensation activity involving American Depositary Shares (ADSs). On April 18, 2026, previously granted restricted stock units vested, resulting in the acquisition of 838 ADSs through a derivative exercise. In connection with this vesting, the company withheld 403 ADSs at a value of $14.98 per ADS to cover tax obligations, which the filing notes is not a market sale under Rule 16b-3. After these transactions, Bonfiglio directly owns 836 ADSs. Footnotes explain that one ADS represents twenty ordinary shares following an ADS ratio change and that the RSUs were granted under Amarin’s 2020 Stock Incentive Plan, vesting in three equal annual installments.
Amarin Corporation director Paul Cohen reported routine equity compensation activity involving American Depositary Shares (ADS). On April 18, 2026, 838 ADS were acquired at $0.00 per share through the exercise of Restricted Stock Units, reflecting an equity award vesting. On the same date, 403 ADS at $14.98 per share were withheld by Amarin to cover tax liabilities tied to this vesting, which a footnote clarifies is not a market sale of securities under Rule 16b‑3. Following these transactions, Cohen directly held 836 ADS. Footnotes note a prior ADS ratio change, with each ADS now representing twenty ordinary shares and each RSU representing a contingent right to receive twenty ordinary shares or cash.
Amarin director Louis Sterling III exercised 838 Restricted Stock Units on April 18, 2026, receiving 838 American Depositary Shares. The issuer withheld 403 ADS to cover tax liability at $14.98 per share. Following these transactions, he holds 4,049 ADS directly.
Diane E. Sullivan, a director of Amarin Corporation plc, exercised previously granted restricted stock units on April 18, 2026 to acquire 838 American Depositary Shares. In connection with vesting, 403 ADSs were withheld to satisfy tax obligations, not sold in the market. Following these transactions, she holds 836 ADSs directly.
Amarin director Odysseas D. Kostas reported routine equity compensation activity involving American Depositary Shares (ADS). On April 18, 2026, he exercised 838 Restricted Stock Units (RSUs), acquiring 838 ADS at a stated price of $0.00 per ADS.
In connection with this vesting, 403 ADS were withheld by Amarin to cover related tax liabilities, as described in the filing as a tax-withholding disposition under Rule 16b-3, not a market sale. After these transactions, Kostas directly held 836 ADS.
The RSUs stem from a grant of 2,514 RSUs made on April 18, 2024 under Amarin’s 2020 Stock Incentive Plan, vesting in three equal installments on April 18, 2025, 2026, and 2027. Each RSU represents a contingent right to receive twenty ordinary shares or cash, and all reported amounts reflect a prior ADS ratio change.
Amarin director Keith Horn exercised 838 Restricted Stock Units, converting them into 838 American Depositary Shares (ADS) on April 18, 2026 at a conversion price of $0 per share. In a related tax-withholding disposition, 403 ADS were delivered at $14.98 per share to cover taxes. Following these equity award transactions, he directly holds 836 ADS.
Amarin Corporation director Oliver O’Connor reported routine equity compensation activity involving American Depositary Shares (ADSs). On April 18, he acquired 838 ADSs through the vesting and conversion of Restricted Stock Units, while 438 ADSs were withheld by the company to cover tax obligations.
After these transactions, he directly held 801 ADSs. A prior grant on April 18, 2024 covered 2,514 RSUs vesting in three equal installments on April 18, 2025, 2026 and 2027. Each RSU represents a contingent right to receive one ADS, and each ADS currently represents twenty ordinary shares after an ADS ratio change.
Amarin Corporation CFO Peter L. Fishman reported routine equity compensation activity involving Restricted Stock Units (RSUs) and American Depositary Shares (ADSs). On April 1, 2026, 125 RSUs previously granted under the company’s stock plan were exercised into 125 ADSs at an exercise price of $0.00 per share.
Of these ADSs, 62 shares were withheld by Amarin at $14.46 per share to cover tax liabilities related to the vesting, as permitted under Rule 16b-3 and described as not being a market sale. Following these transactions, Fishman holds 6,220 ADSs directly, reflecting a small, compensation-driven adjustment to his position.
Amarin Corporation plc President and CEO Aaron Berg reported several equity compensation events and related share movements. On February 1, 2026, he received 26,793 restricted stock units (RSUs) and a stock option for 120,566 American Depositary Shares (ADSs) under Amarin’s 2020 Stock Incentive Plan.
Each RSU represents a contingent right to receive twenty ordinary shares or cash. On January 31, 2026, previously granted RSUs vested, converting into 2,246 ADSs and 1,933 ADSs. The company withheld 1,235 ADSs and 1,063 ADSs at $15.42 per ADS to cover tax liabilities, which is explicitly described as not being market sales.
The filing notes a prior ADS ratio change effective April 11, 2025, where one ADS now represents twenty ordinary shares, and all reported amounts reflect this adjusted ratio.
Amarin Corporation’s EVP and Chief Legal Officer, Jonathan Provoost, reported new equity awards dated February 1, 2026. He received 8,013 Restricted Stock Units (RSUs) and a stock option for 36,060 American Depositary Shares (ADSs) under the 2020 Stock Incentive Plan.
The 8,013 RSUs vest in three equal installments on January 31, 2027, January 31, 2028 and January 31, 2029. The 36,060 ADS option vests over three years, with 33% vesting on the first anniversary of the grant date and the remainder vesting quarterly over the following eight calendar quarters. The filing notes that, effective April 11, 2025, one ADS represents twenty ordinary shares and that the reported award amounts already reflect this ratio change.
Amarin Corporation’s SVP and CFO Peter L. Fishman reported equity compensation and related share activity. On February 1, 2026, he received 6,167 restricted stock units (RSUs) and a stock option for 27,750 American Depositary Shares (ADSs) with a $14.99 exercise price, all under the company’s stock plan.
These RSUs vest in three equal installments on January 31 of 2027, 2028, and 2029. On January 31, 2026, previously granted RSUs vested, resulting in the issuance of 563 and 1,833 ADSs, with 310 and 1,008 ADSs withheld at $15.42 per share to cover tax obligations rather than sold in the market.
Amarin Corporation executive Steven B. Ketchum reported multiple equity compensation events and related share movements. On January 31, 2026, previously granted RSUs vested, converting into 2,246 and 1,933 American Depositary Shares (ADS). The company withheld 1,235 and 1,062 ADS at $15.42 per ADS to cover taxes, leaving Ketchum holding about 40,879 ADS directly.
On February 1, 2026, Ketchum received new awards under Amarin’s 2020 Stock Incentive Plan: 8,013 Restricted Stock Units and a stock option for 36,060 ADS with an exercise price of $14.99 per ADS, vesting over three years. Each ADS currently represents twenty Ordinary Shares following an earlier ADS ratio change, and each RSU corresponds to twenty Ordinary Shares or cash at the company’s discretion.
Amarin Corporation’s EVP and Chief Operating Officer David Paul Keenan reported routine equity compensation activity and tax withholding around RSU vesting. On January 31, 2026, previously granted restricted stock units converted into American Depositary Shares (ADSs), with 2,246 ADSs and 1,933 ADSs delivered and portions of each vest used to cover taxes through share withholding at $15.42 per ADS.
On February 1, 2026, Keenan received a new grant of 8,013 restricted stock units and 30,060 stock options under Amarin’s 2020 Stock Incentive Plan, with the RSUs and options scheduled to vest over three years. Each RSU represents a contingent right to receive twenty ordinary shares or cash, reflecting a prior change so that 1 ADS equals 20 ordinary shares.
Amarin Corporation’s EVP and Chief Operating Officer, Keenan David Paul, reported routine equity compensation activity. On January 2, 2026, 3,688 Restricted Stock Units vested into the right to receive American Depositary Shares at an exercise price of $0.00. These were reflected as 3,688 American Depositary Shares acquired through an option exercise transaction.
To cover tax obligations related to the vesting, the company withheld 1,926 American Depositary Shares at a price of $13.96 per share, which the filing notes was not a market sale. After these transactions, the executive directly owned 9,712 American Depositary Shares and 3,688 RSUs. The filing also reminds investors that one ADS currently represents twenty ordinary shares following an earlier ADS ratio change.
Amarin Corporation EVP and Chief Scientific Officer Steven B. Ketchum reported equity compensation activity involving American Depositary Shares (ADSs) and restricted stock units (RSUs). On January 2, 2026, 3,688 RSUs were credited at an exercise price of $0, each representing a contingent right to receive twenty ordinary shares or cash. The same day, 3,688 ADS were acquired in a transaction coded "M," leaving 41,038 ADS directly held.
A separate transaction coded "F" shows 2,041 ADS withheld at $13.96 per ADS to cover tax liabilities tied to the vesting, reducing directly held ADS to 38,997. These RSUs were part of a 7,376‑unit grant awarded on January 10, 2025 under Amarin’s 2020 Stock Incentive Plan, scheduled to vest 50% on January 2, 2026 and the remainder on July 1, 2026. The company had previously changed its ADS ratio so that one ADS represents twenty ordinary shares, and all reported amounts reflect this ratio.