Amarin Corporation plc

AMRN • NASDAQ

Amarin Corporation plc is a pharmaceutical preparations company on NASDAQ. As of Q3 2025, 85 institutional investors hold shares in this company, with total holdings valued at $56.2M. Sarissa Capital Management LP is the largest holder with a position valued at $20.4M.

PHARMACEUTICAL PREPARATIONS

Employees275.0

Websiteamarincorp.com

Country

United States of America

Overview

Overview of institutional ownership in AMRN as of Q3 2025

All Institutions

Institutions: 85
Value Held: $56.2M
Shares Held: 3.4M
Avg Position: $661.1K
Median Position: $36.7K

Hedge Funds

Hedge Funds: 9
Value Held: $39.1M
Shares Held: 2.4M
Avg Position: $4.3M
Median Position: $2.0M

Biggest Investors

Institutions with the largest positions in AMRN as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
Sarissa Capital Management LP Hedge Fund•Activist	Alexander John Denner CEO	$20.4M 11.28% of portfolio	0.00% 1.2M shares	Q2 2023 Held for 2y 5m	$180.4M
K Kynam Capital Management, LP Hedge Fund•Long/Short	Jared Joseph Keller COO	$9.4M 0.70% of portfolio	0.00% 576.1K shares	Q3 2023 Held for 2y 2m	$1.3B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$4.4M 0.00% of portfolio	0.00% 269.7K shares	Q4 2022 Held for 2y 11m	$1.65T
Eversept Partners, LLC Hedge Fund•Long/Short	Rishi Rasesh Shah President	$2.7M 0.21% of portfolio	0.00% 167.3K shares	Q2 2023 Held for 2y 5m	$1.3B
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	Dan Michael Berkovitz Chairman	$2.2M 0.00% of portfolio	0.00% 132.4K shares	Q2 2023 Held for 2y 5m	$121.98B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$2.0M 0.00% of portfolio	0.00% 122.3K shares	Q4 2022 Held for 2y 11m	$122.08B
W Waterfront Wealth Inc. RIA/Wealth	Roger Carter Ratzlaff CEO	$1.5M 0.32% of portfolio	0.00% 78.0K shares	Q4 2022 Held for 2y 11m	$486.1M
B BNP PARIBAS ARBITRAGE, SA Institution	-	$1.4M 0.00% of portfolio	0.00% 87.4K shares	Q2 2022 Held for 3y 5m	$126.06B
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	-	$1.3M 0.00% of portfolio	0.00% 80.1K shares	Q2 2023 Held for 2y 5m	$67.9B
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	Scott David Hoffman CEO	$984.0K 0.00% of portfolio	0.00% 60.1K shares	Q4 2022 Held for 2y 11m	$62.0B

Net Capital Flow

Institutional buying and selling activity for AMRN in Q3 2025

Traded: +$5.3M
Buyers: 40
Sellers: 21
Total Bought: +$8.1M
Total Sold: −$2.9M
Avg Position: $591.5K

Biggest Buyers

Institution	Net Bought	Current Position
MORGAN STANLEY RIA/Wealth	+$1.7M +106.7K shares	$4.4M 269.7K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$1.4M +87.1K shares	$2.2M 132.4K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$1.3M +76.8K shares	$2.0M 122.3K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$611.4K +37.3K shares	$1.3M 80.1K shares
S State of New Jersey Common Pension Fund D Institution	+$309.2K +18.9K shares	$309.2K 18.9K shares
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS Private Equity	+$300.9K +18.4K shares	$300.9K 18.4K shares
Q Quadrature Capital Ltd Institution	+$300.3K +18.3K shares	$300.3K 18.3K shares
JPMORGAN CHASE & CO Institution	+$300.1K +18.3K shares	$356.3K 21.8K shares
C Cubist Systematic Strategies, LLC Institution	+$224.4K +13.7K shares	$224.4K 13.7K shares
Graham Capital Management, L.P. Hedge Fund•Multi-Strategy	+$221.5K +13.5K shares	$221.5K 13.5K shares

Biggest Sellers

Institution	Net Sold	Current Position
G GEORGE KAISER FAMILY FOUNDATION Institution	−$619.6K −38.2K shares	Sold Off 0 shares
Trexquant Investment LP Hedge Fund•Quant	−$530.2K −32.7K shares	Sold Off 0 shares
MERCER GLOBAL ADVISORS INC /ADV RIA/Wealth	−$409.5K −25.0K shares	$164.2K 10.0K shares
W Waterfront Wealth Inc. RIA/Wealth	−$330.2K −16.8K shares	$1.5M 78.0K shares
J Jump Financial, LLC Institution	−$311.7K −19.0K shares	$317.8K 19.4K shares
BANK OF AMERICA CORP /DE/ Institution	−$237.9K −14.5K shares	$25.0K 1.5K shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	−$233.4K −14.3K shares	$644.5K 39.3K shares
GEODE CAPITAL MANAGEMENT LLC ETF Provider	−$50.3K −3.1K shares	$233.4K 14.2K shares
R Resources Investment Advisors, Inc. Pension/Endowment	−$44.2K −2.7K shares	$408.0K 24.9K shares
H Headlands Technologies LLC Institution	−$43.5K −2.7K shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited AMRN in Q3 2025

New Positions: 7
New Value: $436.4K
Exited Positions: 10
Exited Value: $1.2M

New Positions

Institution	Position Value
Q Quadrature Capital Ltd Institution	$300.3K 18.3K shares
N NEW YORK STATE COMMON RETIREMENT FUND Institution	$79.4K 4.8K shares
BARCLAYS PLC Institution	$36.7K 2.2K shares
Q Quarry LP Institution	$10.7K 655.0 shares
G GF FUND MANAGEMENT CO. LTD. Institution	$7.1K 434.0 shares
IFP Advisors, Inc RIA/Wealth	$1.3K 79.0 shares
B BRYN MAWR TRUST CO/PA Institution	$819.0 50.0 shares

Exited Positions

Institution	Previous Position
G GEORGE KAISER FAMILY FOUNDATION Institution	$619.6K 38.2K shares
Trexquant Investment LP Hedge Fund•Quant	$530.2K 32.7K shares
H Headlands Technologies LLC Institution	$43.5K 2.7K shares
Prospect Financial Services LLC RIA/Wealth	$9.0K 20.0K shares
A Addison Advisors LLC Institution	$4.1K 250.0 shares
TWIN PEAKS WEALTH ADVISORS, LLC RIA/Wealth	$3.3K 224.0 shares
Caitong International Asset Management Co., Ltd RIA/Wealth	$1.4K 87.0 shares
Glenmede Investment Management, LP Long Only Manager	$729.0 45.0 shares
A Atlantic Trust Group, LLC Institution	$551.0 34.0 shares
C CBIZ Investment Advisory Services, LLC RIA/Wealth	$81.0 5.0 shares

Options Activity

Institutions with the largest Call and Put options positions in AMRN as of Q3 2025

Call Positions: 4
Call Value: $3.5M
Put Positions: 3
Put Value: $1.7M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$2.3M 1.4K contracts
Brooklands Fund Management Ltd Hedge Fund•Multi-Strategy	$604.2K 368.9 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$314.5K 192.0 contracts
J JANE STREET GROUP, LLC Institution	$309.6K 189.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.1M 648.0 contracts
J JANE STREET GROUP, LLC Institution	$484.8K 296.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$203.1K 124.0 contracts

Most Committed Institutions

Institutions with AMRN as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Sarissa Capital Management LP Hedge Fund•Activist	Alexander John Denner CEO	11.28% $20.4M	0.00% 1.2M shares	Q2 2023 Held for 2y 5m	$180.4M
K Kynam Capital Management, LP Hedge Fund•Long/Short	Jared Joseph Keller COO	0.70% $9.4M	0.00% 576.1K shares	Q3 2023 Held for 2y 2m	$1.3B
LCM Capital Management Inc RIA/Wealth	Gary Michael Wozny CEO	0.34% $700.4K	0.00% 42.8K shares	Q4 2022 Held for 2y 11m	$208.5M
W Waterfront Wealth Inc. RIA/Wealth	Roger Carter Ratzlaff CEO	0.32% $1.5M	0.00% 78.0K shares	Q4 2022 Held for 2y 11m	$486.1M
Eversept Partners, LLC Hedge Fund•Long/Short	Rishi Rasesh Shah President	0.21% $2.7M	0.00% 167.3K shares	Q2 2023 Held for 2y 5m	$1.3B
Quinn Opportunity Partners LLC Hedge Fund•Event Driven	Patrick Farley Quinn CCO	0.07% $957.6K	0.00% 58.5K shares	Q3 2022 Held for 3y 2m	$1.4B
N NJ State Employees Deferred Compensation Plan Institution	-	0.02% $178.5K	0.00% 10.9K shares	Q2 2023 Held for 2y 5m	$906.0M
Graham Capital Management, L.P. Hedge Fund•Multi-Strategy	Brian Kevin Douglas CEO	0.01% $221.5K	0.00% 13.5K shares	Q3 2025 Held for 2 months	$1.8B
Bleakley Financial Group, LLC RIA/Wealth	Andy Mark Schwartz CEO	0.01% $384.5K	0.00% 23.5K shares	Q4 2022 Held for 2y 11m	$4.3B
Johnson Financial Group, Inc. RIA/Wealth	Lynn Taylor Johnson President	0.01% $163.8K	0.00% 10.0K shares	Q1 2024 Held for 1y 8m	$2.7B