Amarin Corporation PLC
Ownership
Ownership Structure
Who owns Amarin Corporation PLC (AMRN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.9% of the shares are freely tradable; institutional investors hold 23.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Sarissa Capital Management LP | 7.92 | 1,673,395 | +0.0 | 06/30/2026 |
| Acadian Asset Management LLC | 3.01 | 636,769 | +0.0 | 03/31/2026 |
| Kynam Capital Management, LP | 2.52 | 532,982 | +12.8 | 06/30/2026 |
| Morgan Stanley - Brokerage Accounts | 1.39 | 293,172 | -11.2 | 03/31/2026 |
| Point72 Asset Management, L.P. | 1.14 | 240,761 | +559.8 | 03/31/2026 |
| Waterfront Wealth Inc. | 1.01 | 213,949 | +5.2 | 06/30/2026 |
| Brooklands Fund Management Limited | 0.84 | 177,325 | +1,037.0 | 06/30/2026 |
| Eversept Partners, LP | 0.69 | 145,296 | -1.6 | 06/30/2026 |
| Millennium Management LLC | 0.55 | 115,808 | -61.5 | 06/30/2026 |
| Two Sigma Investments LLC | 0.48 | 100,511 | -6.5 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 29, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.