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Equibles

AMRN

Amarin Corp Plcuk

Company with tickers: AMRN

CIK
897448
CUSIP
023111404
Shares Outstanding
20,969,109
13F Activity (30d)
4 filings 3 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 67
Total Value: $67,481,645
Total Shares: 4,666,783

Institutional Ownership Trend

5 quarters

Holder Concentration

Across 67 13F filers · Δ vs Dec 31, 2025
Top Holder
35.9%
Mar 2025 → Mar 2026 · range 29.0% – 87.2%
−0.9 pts
Top 5
72.3%
Mar 2025 → Mar 2026 · range 65.7% – 99.0%
+3.0 pts
Top 10
89.4%
Mar 2025 → Mar 2026 · range 80.1% – 100.0%
+4.8 pts
HHI
1,730
Mar 2025 → Mar 2026 · range 1,281 – 7,660
Moderately concentrated+11

Quarterly Activity

vs Dec 31, 2025
New
6
Increased
21
Decreased
13
Sold Out
20
Unchanged
27
Holder count: -14
Institutional value: +6.2%
Shares held: +2.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large Point72 Asset Management, L.P. +204,270 240,761
Mega MILLENNIUM MANAGEMENT LLC +134,301 300,536
Mid Kynam Capital Management, LP +83,109 472,382
Small Waterfront Wealth Inc. +60,798 203,338
Large ACADIAN ASSET MANAGEMENT LLC +56,327 636,769

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega CITADEL ADVISORS LLC −88,829 91,575
Mega MORGAN STANLEY −36,937 293,172
Mega BNP PARIBAS ARBITRAGE, SA −28,842 75,503
Mid Eversept Partners, LP −24,473 147,715
Mega JPMORGAN CHASE & CO −18,452 242

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Large RENAISSANCE TECHNOLOGIES LLC 19,256 $278,441
Small Hayek Kallen Investment Management 12,809 $185,218
Mega GOLDMAN SACHS GROUP INC 11,918 $172,334
Mid EverSource Wealth Advisors, LLC 376 $5,436
Small TWIN PEAKS WEALTH ADVISORS, LLC 224 $3,239

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Micro SCP Investment, LP 100,000 $1,396,000
Large TWO SIGMA ADVISERS, LP 36,995 $516,450
Mega JANE STREET GROUP, LLC 32,832 $458,333
Large SEI INVESTMENTS CO 29,212 $407,799
Mid Jump Financial, LLC 26,900 $375,524
Filter: New 6 Increased 21 Reduced 13 Sold out 20 Unchanged 27
Showing 70 of 70
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Small Sarissa Capital Management LP $24,197,291 35.86% 1,673,395
Large ACADIAN ASSET MANAGEMENT LLC $9,207,679 13.64% 636,769
Mid Kynam Capital Management, LP $6,830,643 10.12% 472,382
Mega MILLENNIUM MANAGEMENT LLC $4,345,750 6.44% 300,536
Mega MORGAN STANLEY $4,239,265 6.28% 293,172
Large Point72 Asset Management, L.P. $3,481,404 5.16% 240,761
Small Waterfront Wealth Inc. $2,940,267 4.36% 203,338
Mid Eversept Partners, LP $2,135,958 3.17% 147,715
Mega TWO SIGMA INVESTMENTS, LP $1,555,057 2.30% 107,542
Mega CITADEL ADVISORS LLC $1,165,113 1.73% 80,575
Mega BNP PARIBAS ARBITRAGE, SA $1,091,773 1.62% 75,503
Small LCM Capital Management Inc $628,460 0.93% 43,462
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $552,372 0.82% 38,200
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $544,664 0.81% 37,667
Mega STATE STREET CORP $360,762 0.53% 24,949
Mid Bleakley Financial Group, LLC $340,735 0.50% 23,564
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $287,754 0.43% 19,900
Large RENAISSANCE TECHNOLOGIES LLC $278,441 0.41% 19,256
Mega RAYMOND JAMES FINANCIAL INC $275,824 0.41% 19,075
Large State of New Jersey Common Pension Fund D Pension $272,990 0.40% 18,879
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $265,630 0.39% 18,370
Mega AMERIPRISE FINANCIAL INC $263,402 0.39% 18,216
Large State of Tennessee, Department of Treasury $216,957 0.32% 15,004
Mid Quinn Opportunity Partners LLC $206,850 0.31% 14,305
Mega UBS Group AG $190,755 0.28% 13,192
Small Hayek Kallen Investment Management $185,218 0.27% 12,809
Mega GOLDMAN SACHS GROUP INC $172,334 0.26% 11,918
Mega GEODE CAPITAL MANAGEMENT, LLC $170,208 0.25% 11,771
Mega WELLS FARGO & COMPANY/MN $164,553 0.24% 11,380
Mega CITADEL ADVISORS LLC $159,060 0.24% 11,000
Large OSAIC HOLDINGS, INC. $135,793 0.20% 9,391
Large Steward Partners Investment Advisory, LLC $129,648 0.19% 8,966
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $109,968 0.16% 7,605
Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $83,145 0.12% 5,750
Large Federation des caisses Desjardins du Quebec $66,732 0.10% 4,615
Mega RHUMBLINE ADVISERS $48,281 0.07% 3,339
Large NATIONAL BANK OF CANADA /FI/ Bank $36,410 0.05% 2,518
Mega ROYAL BANK OF CANADA Bank $28,239 0.04% 1,953
Large NewEdge Advisors, LLC $19,477 0.03% 1,347
Mega BlackRock, Inc. $16,831 0.02% 1,164
Mid Farther Finance Advisors, LLC $13,910 0.02% 962
Mid IFP Advisors, Inc $11,770 0.02% 814
Small Beaird Harris Wealth Management, LLC $10,845 0.02% 750
Small CoreCap Advisors, LLC $7,736 0.01% 535
Mid GAMMA Investing LLC $7,663 0.01% 530
Mid EverSource Wealth Advisors, LLC $5,436 0.01% 376
Large CWM, LLC $3,643 0.01% 252
Mega JPMORGAN CHASE & CO $3,499 0.01% 242
Small TWIN PEAKS WEALTH ADVISORS, LLC $3,239 0.00% 224
Small Westside Investment Management, Inc. $2,964 0.00% 205
Large JONES FINANCIAL COMPANIES LLLP $2,226 0.00% 154
Mid HARBOUR INVESTMENTS, INC. $1,417 0.00% 98
Mid Larson Financial Group LLC $1,070 0.00% 74
Small RESOURCES MANAGEMENT CORP /CT/ /ADV $867 0.00% 60
Micro HighMark Wealth Management LLC $723 0.00% 50
Small Activest Wealth Management $723 0.00% 50
Mid MAI Capital Management $607 0.00% 42
Mid GROUP ONE TRADING LLC $419 0.00% 29
Small Truvestments Capital LLC $173 0.00% 12
Mid Atlantic Union Bankshares Corp $173 0.00% 12
Mid Parallel Advisors, LLC $144 0.00% 10
Micro Creative Capital Management Investments LLC $130 0.00% 9
Small Key Financial Inc $115 0.00% 8
Small MCGUIRE CAPITAL ADVISORS INC $101 0.00% 7
Mid EASTERN BANK Bank $101 0.00% 7
Mid SBI Securities Co., Ltd. Broker-Dealer $72 0.00% 5
Small Crewe Advisors LLC $72 0.00% 5
Mid Allworth Financial LP $72 0.00% 5
Micro Caitlin John, LLC $28 0.00% 2
Small JFS WEALTH ADVISORS, LLC $14 0.00% 1

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