AMARIN CORP PLCUK (AMRN) — Insider Trading

AI-Powered SEC Filing Analysis

Latest Insider Trading Filed: 2026-04-22

Key Insights

Director Patrice Eadon Bonfiglio received 838 RSUs that vested on April 18, 2026, representing the second tranche of a three-year grant made in April 2024, indicating continued equity compensation alignment with company performance.
The company completed a 1:20 ADS ratio change in April 2025, which affected all equity award calculations; this filing reflects the adjusted share counts post-restructuring with 838 RSUs vesting and 403 shares withheld for tax obligations.
Net acquisition of 435 American Depositary Shares after tax withholding (838 granted minus 403 withheld at $14.98) brings total beneficial ownership to 1,239 ADSs, reflecting modest insider accumulation through equity compensation rather than open market purchases.

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Earlier Insider Trading filings

Filed: 2026-04-21

Director Oliver O'Connor acquired 838 American Depositary Shares (ADS) through vesting of Restricted Stock Units (RSUs) on April 18, 2026, with 438 shares withheld for tax obligations at $14.98 per share, resulting in net beneficial ownership of 1,239 ADS.
The RSU grant originated on April 18, 2024 with 2,514 RSUs vesting in three equal installments, and this filing reflects the second vesting tranche adjusted for the company's April 11, 2025 ADS ratio change (1 ADS now represents 20 ordinary shares).
This transaction represents a routine equity compensation vesting event rather than discretionary insider buying, limiting its significance as a positive indicator of insider confidence in the stock's direction.

Filed: 2026-04-21

Director Keith Horn received 838 RSUs that vested on April 18, 2026, representing the second of three equal annual installments granted on April 18, 2024, with final vesting scheduled for April 2027.
Horn sold 403 ADS shares at $14.98 per share on the same vesting date (April 18, 2026) to satisfy tax withholding obligations, a routine and expected practice that does not indicate loss of confidence in the company.
The April 2025 ADS ratio change (1 ADS now = 20 Ordinary Shares) resulted in proportionate adjustments to equity awards; Horn's post-transaction beneficial ownership stands at 1,239 ADS, reflecting the adjusted holdings.
This is a routine equity compensation transaction with no discretionary open-market trading activity, suggesting the insider is maintaining rather than significantly increasing or decreasing their position in AMARIN.

Filed: 2026-04-21

Director Diane E. Sullivan acquired 838 American Depositary Shares (ADS) through vesting of Restricted Stock Units (RSUs) on April 18, 2026, representing a routine equity compensation event rather than discretionary insider buying.
The transaction included tax withholding of 403 ADS shares at $14.98 per share, indicating the stock was trading at approximately $15 at the time of vesting, providing a market price reference point.
Sullivan's beneficial ownership increased to 1,239 ADS following the transaction, suggesting modest but meaningful accumulated equity stake as a Board member aligned with shareholder interests.
The RSU grant structure (vesting in three equal annual installments from April 2025-2027) reflects standard director compensation practices and indicates Sullivan's continued Board service through at least 2027.

Filed: 2026-04-21

Director Odysseas Kostas acquired 838 American Depositary Shares (ADS) through RSU vesting on April 18, 2026, with 403 shares withheld for tax obligations at $14.98 per share, resulting in net ownership of 1,239 ADS.
The transaction represents vesting of RSUs granted on April 18, 2024, which vest in three equal installments through April 2027, indicating multi-year equity compensation alignment with shareholder interests.
The filing reflects an April 2025 ADS ratio change (1 ADS = 20 ordinary shares) that proportionately adjusted all equity awards, demonstrating significant corporate restructuring affecting share calculations.
As a director with indirect ownership through Sarissa Capital Management LP, this insider activity shows continued confidence in the company despite being a routine vesting event rather than discretionary open-market purchases.

Filed: 2026-04-21

Director Sterling Louis III received 838 RSUs that vested on April 18, 2026, representing one-third of a 2,514 RSU grant from April 2024, with two additional equal vesting installments scheduled for future years.
The vesting transaction was accompanied by tax withholding of 403 ADS shares at $14.98 per share, a routine tax obligation mechanism that reduced net share acquisition to 4,049 ADS beneficially owned.
The April 11, 2025 ADS ratio change (1:20) proportionately adjusted all outstanding equity awards, indicating Amarin implemented a stock split or restructuring that affects the interpretation of all equity positions.
This represents compensation-based equity vesting rather than open market purchases, suggesting insider confidence is not being actively demonstrated through discretionary buying at current stock prices.

Filed: 2026-04-21

Director Paul Cohen acquired 838 American Depositary Shares (ADS) through RSU vesting on April 18, 2026, with 403 shares withheld for tax obligations at $14.98 per share, resulting in net beneficial ownership of 1,239 ADS.
The RSU grant dates back to April 18, 2024, with three equal annual vesting installments through April 2027, indicating Cohen retained his position and continued equity compensation alignment with shareholders.
An ADS ratio change implemented April 11, 2025 (1 ADS = 20 Ordinary Shares) proportionately adjusted all equity awards, affecting the reported security amounts on this filing and reflecting corporate restructuring.

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Important Information

AI-generated analysis is for informational purposes only. Always read original SEC filings and consult with qualified professionals before making investment decisions.