AMRN Amarin Corporation plc
Amarin Corporation plc (AMRN) Institutional Ownership
What the institutions did with AMRN last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| Sarissa Capital Management LP | 1.7M | 36.2% |
| ACADIAN ASSET MANAGEMENT LLC | 721.0K | 15.6% |
| Kynam Capital Management, LP | 533.0K | 11.5% |
| MORGAN STANLEY | 223.6K | 4.8% |
| Waterfront Wealth Inc. | 213.9K | 4.6% |
| Brooklands Fund Management Ltd | 177.3K | 3.8% |
| Eversept Partners, LP | 145.3K | 3.1% |
| MILLENNIUM MANAGEMENT LLC | 115.8K | 2.5% |
| TWO SIGMA INVESTMENTS, LP | 100.5K | 2.2% |
| CITADEL ADVISORS LLC | 95.4K | 2.1% |
| BNP PARIBAS FINANCIAL MARKETS | 71.8K | 1.6% |
| LCM Capital Management Inc | 51.4K | 1.1% |
| RENAISSANCE TECHNOLOGIES LLC | 48.4K | 1.0% |
| JANE STREET GROUP, LLC | 37.6K | 0.8% |
| George Kaiser Family Foundation | 37.2K | 0.8% |
| SEI INVESTMENTS CO | 29.2K | 0.6% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 29.0K | 0.6% |
| STATE STREET CORP | 25.0K | 0.5% |
| Bleakley Financial Group, LLC | 23.5K | 0.5% |
| AMERIPRISE FINANCIAL INC | 19.0K | 0.4% |
| State of New Jersey Common Pension Fund D | 18.9K | 0.4% |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 18.4K | 0.4% |
| RAYMOND JAMES FINANCIAL INC | 18.2K | 0.4% |
| R Squared Ltd | 16.9K | 0.4% |
| State of Tennessee, Department of Treasury | 15.0K | 0.3% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Point72 Asset Management, L.P. | Sold Out | 240.8K | 0 | -240.8K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 300.5K | 115.8K | -184.7K |
| Brooklands Fund Management Ltd | Increased | 15.6K | 177.3K | +161.7K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 636.8K | 721.0K | +84.2K |
| MORGAN STANLEY | Reduced | 293.2K | 223.6K | -69.6K |
| Kynam Capital Management, LP | Increased | 472.4K | 533.0K | +60.6K |
| JANE STREET GROUP, LLC | New | 0 | 37.6K | +37.6K |
| George Kaiser Family Foundation | New | 0 | 37.2K | +37.2K |
| SEI INVESTMENTS CO | New | 0 | 29.2K | +29.2K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 19.3K | 48.4K | +29.1K |
| R Squared Ltd | New | 0 | 16.9K | +16.9K |
| Quadrature Capital Ltd | New | 0 | 14.8K | +14.8K |
| CITADEL ADVISORS LLC | Increased | 80.6K | 95.4K | +14.8K |
| EntryPoint Capital, LLC | New | 0 | 12.2K | +12.2K |
| Jump Financial, LLC | New | 0 | 12.0K | +12.0K |
| GOLDMAN SACHS GROUP INC | Sold Out | 11.9K | 0 | -11.9K |
| Waterfront Wealth Inc. | Increased | 203.3K | 213.9K | +10.6K |
| Verdad Advisers, LP | New | 0 | 10.4K | +10.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 37.7K | 29.0K | -8.7K |
| LCM Capital Management Inc | Increased | 43.5K | 51.4K | +7.9K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 107.5K | 100.5K | -7.0K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 75.5K | 71.8K | -3.7K |
| UBS Group AG | Reduced | 13.2K | 10.1K | -3.1K |
| WELLS FARGO & COMPANY/MN | Increased | 11.4K | 13.9K | +2.5K |
| Eversept Partners, LP | Reduced | 147.7K | 145.3K | -2.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.