AMARIN CORP PLC -ADR (AMRN) Institutional Shareholders
AMARIN CORP PLC -ADR (AMRN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $73.32M in AMRN holdings during the latest filing period.
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 $22.81M, representing an estimated loss of -14.49% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 86% 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
$73.32M
Largest Holder
Sarissa Capital Management Lp
Largest Position
$26.67M
Insider Transactions (90d)
20
Latest Filing Quarter
Q2 2026
New Institutional Positions
105
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 | $22,808,374 | -$3,865,542 | -14.49% | |
| Acadian Asset Management Llc | 0.01% | 720,984 | $11,467,000 | $9,827,012 | -$1,639,988 | -14.30% | |
| Kynam Capital Management, Lp | 0.47% | 532,982 | $8,495,733 | $7,264,545 | -$1,231,188 | -14.49% | |
| Morgan Stanley | 0.00% | 223,617 | $3,564,456 | $3,047,900 | -$516,556 | -14.49% | |
| Waterfront Wealth Inc. | 0.49% | 213,949 | $3,183,561 | $2,916,125 | -$267,436 | -8.40% | |
| Brooklands Fund Management Ltd | 2.15% | 177,325 | $2,741,449 | $2,416,940 | -$324,509 | -11.84% | |
| Eversept Partners, Lp | 0.13% | 145,296 | $2,316,018 | $1,980,384 | -$335,634 | -14.49% | |
| Millennium Management Llc | 0.00% | 115,808 | $1,845,980 | $1,578,463 | -$267,517 | -14.49% | |
| Two Sigma Investments, Lp | 0.00% | 100,511 | $1,602,145 | $1,369,965 | -$232,180 | -14.49% | |
| Citadel Advisors Llc | 0.00% | 95,364 | $1,520,103 | $1,299,811 | -$220,292 | -14.49% | |
| Bnp Paribas Financial Markets | 0.00% | 71,813 | $1,144,699 | $978,811 | -$165,888 | -14.49% | |
| Lcm Capital Management Inc | 0.36% | 51,362 | $818,710 | $700,064 | -$118,646 | -14.49% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 48,369 | $771,002 | $659,269 | -$111,733 | -14.49% |
| Jane Street Group, Llc | 0.00% | 37,628 | $599,790 | $512,870 | -$86,920 | -14.49% | |
| George Kaiser Family Foundation | 0.06% | 37,207 | $593,080 | $507,131 | -$85,949 | -14.49% | |
| Sei Investments Co | 0.00% | 29,211 | $465,628 | $398,146 | -$67,482 | -14.49% | |
| Susquehanna International Group, Llp | 0.00% | 29,001 | $462,276 | $395,284 | -$66,992 | -14.49% | |
| State Street Corp | 0.00% | 25,016 | $398,755 | $340,968 | -$57,787 | -14.49% | |
| Bleakley Financial Group, Llc | 0.00% | 23,505 | $374,670 | $320,373 | -$54,297 | -14.49% | |
| Ameriprise Financial Inc | 0.00% | 18,982 | $302,573 | $258,725 | -$43,848 | -14.49% | |
| State Of New Jersey Common Pension Fund D | 0.00% | 18,879 | $300,931 | $257,321 | -$43,610 | -14.49% | |
| Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 0.00% | 18,370 | $292,818 | $250,383 | -$42,435 | -14.49% | |
| Raymond James Financial Inc | 0.00% | 18,165 | $289,550 | $247,589 | -$41,961 | -14.49% | |
| R Squared Ltd | 0.14% | 16,938 | $269,992 | $230,865 | -$39,127 | -14.49% | |
| State Of Tennessee, Department Of Treasury | 0.00% | 15,004 | $239,164 | $204,505 | -$34,659 | -14.49% | |
| Quadrature Capital Ltd | 0.00% | 14,842 | $236,581 | $202,296 | -$34,285 | -14.49% | |
| Quinn Opportunity Partners Llc | 0.01% | 14,305 | $228,022 | $194,977 | -$33,045 | -14.49% | |
| Wells Fargo & Company/Mn | 0.00% | 13,913 | $221,773 | $189,634 | -$32,139 | -14.49% | |
| Hayek Kallen Investment Management | 0.06% | 12,809 | $204,000 | $174,587 | -$29,413 | -14.42% | |
| Entrypoint Capital, Llc | 0.05% | 12,226 | $194,882 | $166,640 | -$28,242 | -14.49% | |
| Jump Financial, Llc | 0.00% | 12,008 | $191,407 | $163,669 | -$27,738 | -14.49% | |
| Geode Capital Management, Llc | 0.00% | 11,771 | $187,629 | $160,439 | -$27,190 | -14.49% | |
| Osaic Holdings, Inc. | 0.00% | 11,565 | $184,333 | $157,631 | -$26,702 | -14.49% | |
| Verdad Advisers, Lp | 0.16% | 10,431 | $166,270 | $142,175 | -$24,095 | -14.49% | |
| Ubs Group Ag | 0.00% | 10,063 | $160,404 | $137,159 | -$23,245 | -14.49% | |
| Steward Partners Investment Advisory, Llc | 0.00% | 8,910 | $142,025 | $121,443 | -$20,582 | -14.49% | |
| New York State Common Retirement Fund | 0.00% | 7,605 | $121,224 | $103,656 | -$17,568 | -14.49% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 4,615 | $73,518 | $62,902 | -$10,616 | -14.44% | |
| Rhumbline Advisers | 0.00% | 3,733 | $59,498 | $50,881 | -$8,617 | -14.48% | |
| National Bank Of Canada | 0.00% | 2,518 | $40,137 | $34,320 | -$5,817 | -14.49% | |
| Royal Bank Of Canada | 0.00% | 1,877 | $30,000 | $25,584 | -$4,416 | -14.72% | |
| Gamma Investing Llc | 0.00% | 1,576 | $25,121 | $21,481 | -$3,640 | -14.49% | |
| Newedge Advisors, Llc | 0.00% | 1,347 | $21,471 | $18,360 | -$3,111 | -14.49% | |
| Farther Finance Advisors, Llc | 0.00% | 958 | $15,271 | $13,058 | -$2,213 | -14.49% | |
| Blackrock, Inc. | 0.00% | 858 | $13,677 | $11,695 | -$1,982 | -14.49% | |
| Ifp Advisors, Inc | 0.00% | 814 | $12,975 | $11,095 | -$1,880 | -14.49% | |
| Beaird Harris Wealth Management, Llc | 0.00% | 750 | $11,955 | $10,223 | -$1,733 | -14.49% | |
| Corecap Advisors, Llc | 0.00% | 535 | $8,528 | $7,292 | -$1,236 | -14.49% | |
| Jones Financial Companies Lllp | 0.00% | 493 | $7,844 | $6,720 | -$1,124 | -14.33% | |
| Barclays Plc | 0.00% | 305 | $4,862 | $4,157 | -$705 | -14.50% |
Frequently asked questions about AMRN
Who owns the most AMRN stock?
The largest holders of AMRN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for AMARIN CORP PLC -ADR (AMRN).
Is AMRN widely held by superinvestors?
Many widely followed stocks like AMRN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly AMRN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.