AMRN Institutional Ownership & Shareholders
AMARIN CORP PLC -ADR (AMRN) is currently held by 79 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $72.58M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Sarissa Capital Management Lp is currently the largest disclosed institutional shareholder of AMRN tracked by InsiderSet, reporting ownership valued at approximately $26.67M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $20.16M, representing an estimated loss of -24.40% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 87% of the total disclosed AMRN value among the investors covered in this analysis. Major shareholders include Sarissa Capital Management Lp, Acadian Asset Management Llc, Kynam Capital Management, Lp, and several other long-term asset managers with concentrated positions in AMARIN CORP PLC -ADR (AMRN).
This page ranks the largest institutional AMRN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
79
Total Reported Value
$72.58M
Largest Holder
Sarissa Capital Management Lp
Largest Position
$26.67M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
106
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Sarissa Capital Management Lp | 15.00% | 1,673,395 | $26,673,916 | $20,164,410 | -$6,509,506 | -24.40% | |
| Acadian Asset Management Llc | 0.01% | 720,984 | $11,467,000 | $8,687,857 | -$2,779,143 | -24.24% | |
| Kynam Capital Management, Lp | 0.47% | 532,982 | $8,495,733 | $6,422,433 | -$2,073,300 | -24.40% | |
| Morgan Stanley | 0.00% | 223,617 | $3,564,456 | $2,694,585 | -$869,871 | -24.40% | |
| Brooklands Fund Management Ltd | 0.38% | 218,373 | $2,838,853 | $2,631,395 | -$207,458 | -7.31% | |
| Waterfront Wealth Inc. | 0.39% | 213,707 | $2,459,768 | $2,575,169 | +$115,401 | +4.69% | |
| Eversept Partners, Lp | 0.13% | 145,296 | $2,316,018 | $1,750,817 | -$565,201 | -24.40% | |
| Millennium Management Llc | 0.00% | 115,808 | $1,845,980 | $1,395,486 | -$450,494 | -24.40% | |
| Two Sigma Investments, Lp | 0.00% | 100,511 | $1,602,145 | $1,211,158 | -$390,987 | -24.40% | |
| Citadel Advisors Llc | 0.00% | 95,364 | $1,520,103 | $1,149,136 | -$370,967 | -24.40% | |
| Bnp Paribas Financial Markets | 0.00% | 71,813 | $1,144,699 | $865,347 | -$279,352 | -24.40% | |
| Lcm Capital Management Inc | 0.33% | 60,162 | $782,106 | $724,952 | -$57,154 | -7.31% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 48,369 | $771,002 | $582,846 | -$188,156 | -24.40% |
| Jane Street Group, Llc | 0.00% | 37,628 | $599,790 | $453,417 | -$146,373 | -24.40% | |
| George Kaiser Family Foundation | 0.06% | 37,207 | $593,080 | $448,344 | -$144,736 | -24.40% | |
| Sei Investments Co | 0.00% | 29,211 | $465,628 | $351,993 | -$113,635 | -24.40% | |
| Susquehanna International Group, Llp | 0.00% | 29,001 | $462,276 | $349,462 | -$112,814 | -24.40% | |
| State Street Corp | 0.00% | 25,016 | $398,755 | $301,443 | -$97,312 | -24.40% | |
| Bleakley Financial Group, Llc | 0.00% | 23,505 | $374,670 | $283,235 | -$91,435 | -24.40% | |
| Ameriprise Financial Inc | 0.00% | 18,982 | $302,573 | $228,733 | -$73,840 | -24.40% | |
| State Of New Jersey Common Pension Fund D | 0.00% | 18,879 | $300,931 | $227,492 | -$73,439 | -24.40% | |
| Raymond James Financial Inc | 0.00% | 18,165 | $289,550 | $218,888 | -$70,662 | -24.40% | |
| R Squared Ltd | 0.14% | 16,938 | $269,992 | $204,103 | -$65,889 | -24.40% | |
| State Of Tennessee, Department Of Treasury | 0.00% | 15,004 | $239,164 | $180,798 | -$58,366 | -24.40% | |
| Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 0.00% | 18,370 | $238,810 | $221,359 | -$17,452 | -7.31% | |
| Quadrature Capital Ltd | 0.00% | 14,842 | $236,581 | $178,846 | -$57,735 | -24.40% | |
| Quinn Opportunity Partners Llc | 0.01% | 14,305 | $228,022 | $172,375 | -$55,647 | -24.40% | |
| Wells Fargo & Company/Mn | 0.00% | 13,913 | $221,773 | $167,652 | -$54,121 | -24.40% | |
| Hayek Kallen Investment Management | 0.06% | 12,809 | $204,000 | $154,348 | -$49,652 | -24.34% | |
| Entrypoint Capital, Llc | 0.05% | 12,226 | $194,882 | $147,323 | -$47,559 | -24.40% | |
| Jump Financial, Llc | 0.00% | 12,008 | $191,407 | $144,696 | -$46,711 | -24.40% | |
| Geode Capital Management, Llc | 0.00% | 11,771 | $187,629 | $141,841 | -$45,788 | -24.40% | |
| Osaic Holdings, Inc. | 0.00% | 11,565 | $184,333 | $139,358 | -$44,975 | -24.40% | |
| Verdad Advisers, Lp | 0.16% | 10,431 | $166,270 | $125,694 | -$40,576 | -24.40% | |
| Ubs Group Ag | 0.00% | 10,063 | $160,404 | $121,259 | -$39,145 | -24.40% | |
| Steward Partners Investment Advisory, Llc | 0.00% | 8,910 | $142,025 | $107,366 | -$34,660 | -24.40% | |
| New York State Common Retirement Fund | 0.00% | 7,605 | $121,224 | $91,640 | -$29,584 | -24.40% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 4,615 | $73,518 | $55,611 | -$17,907 | -24.36% | |
| Rhumbline Advisers | 0.00% | 3,733 | $59,498 | $44,983 | -$14,515 | -24.40% | |
| National Bank Of Canada | 0.00% | 2,518 | $40,137 | $30,342 | -$9,795 | -24.40% | |
| Royal Bank Of Canada | 0.00% | 1,877 | $30,000 | $22,618 | -$7,382 | -24.61% | |
| Newedge Advisors, Llc | 0.00% | 1,347 | $21,471 | $16,231 | -$5,240 | -24.40% | |
| Blackrock, Inc. | 0.00% | 858 | $13,677 | $10,339 | -$3,338 | -24.41% | |
| Farther Finance Advisors, Llc | 0.00% | 937 | $12,181 | $11,291 | -$890 | -7.31% | |
| Beaird Harris Wealth Management, Llc | 0.00% | 750 | $11,955 | $9,038 | -$2,918 | -24.40% | |
| Simplex Trading, Llc | 0.00% | 823 | $10,699 | $9,917 | -$782 | -7.31% | |
| Gamma Investing Llc | 0.00% | 735 | $9,555 | $8,857 | -$698 | -7.31% | |
| Jones Financial Companies Lllp | 0.00% | 493 | $7,844 | $5,941 | -$1,903 | -24.27% | |
| Corecap Advisors, Llc | 0.00% | 535 | $6,955 | $6,447 | -$508 | -7.31% | |
| Barclays Plc | 0.00% | 305 | $4,862 | $3,675 | -$1,187 | -24.41% |
Frequently asked questions about AMRN
Who are the largest institutional holders of AMRN?
The largest institutional holders of AMRN reported in the latest SEC Form 13F filings include Sarissa Capital Management Lp, Acadian Asset Management Llc, Kynam Capital Management, Lp, Morgan Stanley, and Brooklands Fund Management Ltd. InsiderSet ranks institutional holders by their latest reported AMRN position.
What is AMRN institutional ownership?
This page tracks AMRN positions reported by institutional investment managers through SEC Form 13F. AMARIN CORP PLC -ADR (AMRN) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own AMRN?
InsiderSet currently tracks 79 institutional managers reporting AMRN holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of AMRN shareholders.
How much AMRN stock do institutions own?
Institutional investment managers disclosed approximately $72.58M in AMRN holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was AMRN institutional ownership last updated?
The latest AMRN institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional AMRN holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its AMRN position after the reporting date.
Are institutions buying or selling AMRN?
Institutional buying and selling can be analyzed by comparing AMRN positions across consecutive 13F reporting periods. InsiderSet's AMRN Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AMRN ownership changes.
How has AMRN institutional ownership changed over time?
InsiderSet tracks AMRN institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.