AMRN · Amarin Corp Plc\Uk · Shareholders & Ownership
Market Cap
$241.04M
Shares
20.97M
Volume · Oct 23
43.17K
Avg daily vol (3M)
65.66K
Every disclosed holder of AMRN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns AMRN
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 4,644,915 | 1.05% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 438,444,330 | 98.95% |
| Registered funds (N-PORT, not summed) | 123,532 | 0.03% |
Shares outstanding: 443,089,245, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of AMRN
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Sarissa Capital Management LP
13D
CIK 1577524 · Investment adviser · Aug 25, 2026
Item 4 purpose: not restated by this amendment, the earlier 13D's purpose stands
not summed
|
25,743,900 | ||
| 1.1 |
Sarissa Capital Management LP
13F
CIK 1577524 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,673,395 | ||
| 2 |
ACADIAN ASSET MANAGEMENT LLC
13F
CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
720,984 | ||
| 3 |
Kynam Capital Management, LP
13F
CIK 1907884 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
532,982 | ||
| 4 |
|
242,500 | ||
| 5 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
223,617 | ||
| 6 |
Waterfront Wealth Inc.
13F
CIK 1775210 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
213,949 | ||
| 7 |
Brooklands Fund Management Ltd
13F
CIK 2036388 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
177,325 | ||
| 8 |
Eversept Partners, LP
13F
CIK 1697013 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
145,296 | ||
| 9 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
115,808 | ||
| 10 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
100,511 | ||
| 11 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
95,364 | ||
| 12 |
|
85,648 | ||
| 13 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
71,813 | ||
| 14 |
LCM Capital Management Inc
13F
CIK 1861752 · Registered investment adviser · Sep 30, 2026
|
60,162 | ||
| 15 |
Old Westbury Small & Mid Cap Strategies Fund
Fund
S000001857 · Registered fund · Jul 31, 2026
Old Westbury Funds Inc, not summed
|
58,097 | ||
| 16 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
48,369 | ||
| 17 |
Ketchum Steven B
Insider
CIK 1289884 · Jul 1, 2026
EVP, Chief Scientific Officer, issuer-wide, not summed
|
42,680 | ||
| 18 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
37,628 | ||
| 19 |
George Kaiser Family Foundation
13F
CIK 1265376 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
37,207 | ||
| 20 |
SEI INVESTMENTS CO
13F
CIK 350894 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
29,211 | ||
| 21 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
29,001 | ||
| 22 |
|
25,016 | ||
| 22.1 |
State Street(R) SPDR(R) Portfolio Developed World ex-US ETF
Fund
S000014038 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
|
16,644 | ||
| 22.2 |
State Street(R) SPDR(R) S&P(R) International Small Cap ETF
Fund
S000014039 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
|
7,907 | ||
| 23 |
Bleakley Financial Group, LLC
13F
CIK 1936953 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
23,505 | ||
| 24 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,982 | ||
| 25 |
State of New Jersey Common Pension Fund D
13F
CIK 1483066 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,879 | ||
| 26 |
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
13F
CIK 1083190 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,370 | ||
| 27 |
RAYMOND JAMES FINANCIAL INC
13F
CIK 720005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,165 | ||
| 28 |
R Squared Ltd
13F
CIK 1896148 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
16,938 | ||
| 29 |
State of Tennessee, Department of Treasury
13F
CIK 1587973 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
15,004 | ||
| 30 |
Quadrature Capital Ltd
13F
CIK 1651424 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,842 | ||
| 31 |
Quinn Opportunity Partners LLC
13F
CIK 1633275 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,305 | ||
| 32 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13,913 | ||
| 33 |
Keenan David Paul
Insider
CIK 2094574 · Jul 1, 2026
EVP, Chief Operating Officer, issuer-wide, not summed
|
13,470 | ||
| 34 |
Hayek Kallen Investment Management
13F
CIK 1430681 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,809 | ||
| 35 |
EntryPoint Capital, LLC
13F
CIK 1992519 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,226 | ||
| 36 |
Jump Financial, LLC
13F
CIK 1831577 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,008 | ||
| 37 |
Fidelity Nasdaq Composite Index Fund
Fund
S000055366 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
11,771 | ||
| 38 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,771 | ||
| 39 |
OSAIC HOLDINGS, INC.
13F
CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,565 | ||
| 40 |
Crossmark Global Holdings, Inc.
13F
CIK 1539204 · Unknown · Sep 30, 2026
|
11,237 | ||
| 41 |
VOYA MULTI-MANAGER INTERNATIONAL SMALL CAP FUND
Fund
S000008531 · Registered fund · Jul 31, 2026
Voya Mutual Funds, not summed
|
10,540 | ||
| 42 |
Verdad Advisers, LP
13F
CIK 1812822 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,431 | ||
| 43 |
|
10,063 | ||
| 44 |
Nomura Healthcare Fund
Fund
S000018873 · Registered fund · Jun 30, 2026
Delaware Group Equity Funds IV, not summed
|
9,500 | ||
| 45 |
Steward Partners Investment Advisory, LLC
13F
CIK 1723397 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,910 | ||
| 46 |
|
7,619 | ||
| 47 |
NEW YORK STATE COMMON RETIREMENT FUND
13F
CIK 810265 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,605 | ||
| 48 |
Steward Values Enhanced International Fund
Fund
S000010863 · Registered fund · Jul 31, 2026
Steward Funds Inc, not summed
|
5,897 | ||
| 49 |
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
13F
CIK 1141802 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,774 | ||
| 50 |
Provoost Jonathan
Insider
CIK 1998452 · Jul 1, 2026
EVP, Chief Legal Officer, issuer-wide, not summed
|
4,624 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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