AMRN · Amarin Corp Plcuk · Holdings

$12.29 +0.24 (+1.99%) Play latest call Q3 2026 earnings call transcript

Market Cap

$506.61M

42.04M

Volume · Nov 4 22.66K Avg daily vol (3M) 69.27K

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.

Use institutional holdings through the 13F API or MCP → See every holder of AMRN: 13F, 13D and 13G, insiders and funds →

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 81

Total Value: $74,763,708

Total Shares: 4,787,062

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 81 13F filers

Top Holder

35.4%

of institutional value

Top 5

71.2%

of institutional value

Top 10

85.2%

of institutional value

HHI

1,709

Moderately concentrated

Who Holds AMRN

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 81 filers, like-for-like change +0.3%; actively managed books +2.2%; index-like books -21.5%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	30.2%	38	-17.6%	6	6
Adviser	40.4%	3	+9.5%	0	0
Bank	1.2%	9	-0.5%	2	0
Broker-dealer	0.0%	1	+348.3%	0	0
Non-US	1.6%	2	-4.9%	0	0
Holding company	5.7%	4	-16.0%	1	1
Insurer	0.0%	0	—	0	0
Unknown	20.9%	24	+26.7%	9	0

Style	Share	Filers	Change	New	Exited
Index-like	6.3%	8	-21.5%	0	1
Systematic-like	8.4%	7	-48.0%	2	1
Concentrated	53.6%	15	+12.1%	1	1
Diversified active	31.7%	51	+14.5%	15	4
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	53.1%	51	+0.4%	7	6
Medium turnover	32.4%	13	+10.0%	3	0
High turnover	10.4%	12	-38.6%	6	1
Unknown	4.1%	5	+1103.4%	2	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	5.0%	8	+1385.6%	6	0
Medium horizon	0.7%	8	+53.9%	1	1
Long horizon	88.4%	60	+0.9%	11	5
Unknown	5.9%	5	-47.8%	0	1
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	46.9%	20	+11.3%	6	2
$1B to $10B	16.4%	22	+14.5%	4	2
$10B to $100B	19.1%	16	-10.0%	4	2
$100B or more	17.7%	23	-20.0%	4	1
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	6.8%	27	+5.9%	5	5
Pooled investment vehicles	23.0%	8	-23.0%	1	1
Registered funds and BDCs	0.3%	1	0.0%	0	0
Governments and sovereign funds	0.1%	1	+11.8%	0	0
Other investment advisers	0.0%	1	+197.4%	0	0
Pension and profit sharing plans	0.0%	0	—	0	0
Diversified	0.0%	0	—	0	0
Unknown	69.8%	43	+10.7%	12	1

Private funds	Share	Filers	Change	New	Exited
Hedge funds	23.0%	8	-23.0%	1	1
Private equity funds	0.0%	0	—	0	0
Venture capital funds	0.0%	1	0.0%	0	0
Other private funds	0.1%	1	+11.8%	0	0
No private funds	7.1%	27	+6.2%	4	3
Real estate funds	0.0%	1	-89.7%	1	2
Private funds, type not stated	0.0%	0	—	0	0
Unknown	69.8%	43	+10.7%	12	1

Location	Share	Filers	Change	New	Exited
United States	95.1%	71	-3.9%	14	7
Outside the US	4.9%	10	+503.2%	4	0

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

81 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

1.23% of filers hold it in their top 10

Mar 31, 2026: 1

Holders above 5%

median weight 0.000%

Mar 31, 2026: 1

Crowding

—

the issuer has more than one class of common stock, so its count is the total across classes

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

the issuer has more than one class of common stock, so its count is the total across classes

Top 10 holders

86.4%

of 13F shares, Herfindahl 0.178

Active holders

+2.2%

like-for-like share change of active filers

5% stakes on record

1 13D, 0 13G

How long holders have held it value-weighted 15.8 quarters

Under 1 year 8.85% 1 to 3 years 22.7% 3 years or more 68.4% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$23.32

estimated per share

Mar 31, 2026: $23.78

Quarter-end price

$15.94

implied by 13F values

Estimated gain or loss

-31.7%

price against the estimated cost

Estimated at a loss

81.7%

of costed 13F value

Estimated cost covers 56.4% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies AMRN's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	SLB Slb Limited	3	0.044
2	VRTX Vertex Pharmaceuticals Inc	3	0.041
3	TMO Thermo Fisher Scientific Inc.	4	0.035
4	BX Blackstone Inc.	3	0.033
5	NOW ServiceNow, Inc.	3	0.032
6	LRCX Lam Research Corp	4	0.028
7	MCD Mcdonalds Corp	4	0.027
8	LOW Lowes Companies Inc	3	0.027
9	RTX RTX Corp	4	0.027
10	AMD Advanced Micro Devices Inc	4	0.024

Shareholder Targets

13F filers that own its peers but not AMRN, quarter ended Jun 30, 2026

Found through its holder-overlap peers: SLB, VRTX, TMO, BX, NOW, LRCX, MCD, LOW, RTX, AMD, CVX, TSLA, AMZN, GOOGL, VZ, NEE, AVGO, NFLX, UNH, JPM. 7,128 filers in all.

#	Filer	In peers	Of book	Largest peers
1	VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like	$903,399,118,402 20 held	19.3%	GOOGL, AMZN, AVGO
2	FMR LLC Holding company, Diversified active	$378,149,370,871 20 held	16.4%	GOOGL, AMZN, AVGO
3	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$278,348,509,670 20 held	12.5%	GOOGL, AVGO, AMZN
4	Invesco Ltd. Adviser, Diversified active	$224,902,379,634 20 held	17.8%	GOOGL, AMZN, AMD
5	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$198,719,878,704 20 held	19.9%	GOOGL, AVGO, AMZN
6	NORGES BANK Non-US, Index-like	$197,075,247,544 20 held	19.6%	GOOGL, AMZN, AVGO
7	Capital World Investors Adviser, Diversified active	$171,755,013,643 17 held	20.4%	AVGO, GOOGL, TSLA
8	Capital Research Global Investors Adviser, Diversified active	$162,467,921,367 18 held	22.7%	AVGO, GOOGL, AMZN
9	BANK OF AMERICA CORP /DE/ Bank, Diversified active	$156,863,312,535 20 held	10.1%	GOOGL, AVGO, JPM
10	NORTHERN TRUST CORP Bank, Index-like	$144,118,627,636 20 held	16.8%	GOOGL, AMZN, AVGO

Fund Ownership of AMRN by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.09% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.03%	0.00 pp	11,771	1
Index ETFs	0.06%	0.00 pp	24,551	2
Active ETFs	0.00%	0.00 pp	0	0
Active funds	0.20%	+0.17 pp	84,843	6
Unclassified	0.00%	0.00 pp	0	0
All registered funds	0.29%	+0.17 pp	121,165	9

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 37 Adviser 3 Bank 9 Broker-dealer 1 Non-US 2 Holding company 4 Unknown 25

Showing 85 of 85

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Sarissa Capital Management LP

$26,673,916

35.68%

1,673,395

ACADIAN ASSET MANAGEMENT LLC

$11,492,484

15.37%

720,984

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	720,984	$11,492,484	100.0%	Defined

Kynam Capital Management, LP

$8,495,733

11.36%

532,982

MORGAN STANLEY

$3,564,453

4.77%

223,617

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO. LLC	320	$5,100	0.1%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	208,390	$3,321,736	93.2%	Defined
MORGAN STANLEY SMITH BARNEY LLC	14,907	$237,617	6.7%	Defined

Brooklands Fund Management Ltd

$2,838,849

3.80%

218,373

Waterfront Wealth Inc.

$2,778,191

3.72%

213,707

Eversept Partners, LP

$2,316,018

3.10%

145,296

MILLENNIUM MANAGEMENT LLC

$1,845,979

2.47%

115,808

TWO SIGMA INVESTMENTS, LP

$1,602,145

2.14%

100,511

CITADEL ADVISORS LLC

$1,520,101

2.03%

95,364

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	34,406	$548,431	36.1%	Defined
Held directly	60,958	$971,670	63.9%	Defined

BNP PARIBAS ARBITRAGE, SA

$1,144,699

1.53%

71,813

LCM Capital Management Inc

$782,106

1.05%

60,162

RENAISSANCE TECHNOLOGIES LLC

$771,001

1.03%

48,369

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$765,120

1.02%

48,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	48,000	$765,120	100.0%	Other

JANE STREET GROUP, LLC

$599,790

0.80%

37,628

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	32,829	$523,294	87.2%	Defined
Jane Street Global Trading, LLC	4,799	$76,496	12.8%	Defined

George Kaiser Family Foundation

$593,079

0.79%

37,207

SEI INVESTMENTS CO

$465,623

0.62%

29,211

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI INVESTMENTS MANAGEMENT CORP	16	$255	0.1%	Sole
SEI TRUST CO	29,195	$465,368	99.9%	Sole

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$462,275

0.62%

29,001

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	29,001	$462,275	100.0%	Other

STATE STREET CORP

$398,755

0.53%

25,016

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	25,016	$398,755	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$385,748

0.52%

24,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	24,200	$385,748	100.0%	Other

Bleakley Financial Group, LLC

$374,669

0.50%

23,505

AMERIPRISE FINANCIAL INC

$302,572

0.40%

18,982

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	1,902	$30,317	10.0%	Defined
Ameriprise Financial Services, LLC	17,080	$272,255	90.0%	Defined

State of New Jersey Common Pension Fund D

$300,931

0.40%

18,879

CITADEL ADVISORS LLC

$299,672

0.40%

18,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	18,800	$299,672	100.0%	Defined

RAYMOND JAMES FINANCIAL INC

$289,549

0.39%

18,165

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	1,401	$22,331	7.7%	Defined
Raymond James Financial Services Advisors, Inc.	16,764	$267,218	92.3%	Defined

R Squared Ltd

$269,991

0.36%

16,938

State of Tennessee, Department of Treasury

$239,163

0.32%

15,004

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$238,810

0.32%

18,370

Quadrature Capital Ltd

$236,581

0.32%

14,842

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	14,842	$236,581	100.0%	Other

Quinn Opportunity Partners LLC

$228,021

0.30%

14,305

WELLS FARGO & COMPANY/MN

$221,773

0.30%

13,913

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	2,233	$35,594	16.0%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	11,265	$179,564	81.0%	Defined
WELLS FARGO CLEARING SERVICES, LLC	415	$6,615	3.0%	Defined

Hayek Kallen Investment Management

$204,175

0.27%

12,809

EntryPoint Capital, LLC

$194,882

0.26%

12,226

Jump Financial, LLC

$191,407

0.26%

12,008

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Leap GP LLC joint	12,008	$191,407	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$187,629

0.25%

11,771

OSAIC HOLDINGS, INC.

$184,345

0.25%

11,565

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	6,559	$104,550	56.7%	Defined
OSAIC INSTITUTIONS, INC.	5,000	$79,700	43.2%	Defined
Osaic Advisory Services, LLC	6	$95	0.1%	Defined

Verdad Advisers, LP

$166,270

0.22%

10,431

CITADEL ADVISORS LLC

$164,182

0.22%

10,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	10,300	$164,182	100.0%	Defined

UBS Group AG

$160,403

0.21%

10,063

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	4,214	$67,171	41.9%	Defined
UBS AG	7	$111	0.1%	Defined
UBS Switzerland AG	5,842	$93,121	58.1%	Defined

Crossmark Global Holdings, Inc.

$146,081

0.20%

11,237

Steward Partners Investment Advisory, LLC

$142,025

0.19%

8,910

NEW YORK STATE COMMON RETIREMENT FUND

$121,223

0.16%

7,605

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$92,037

0.12%

5,774

Federation des caisses Desjardins du Quebec

$73,562

0.10%

4,615

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Desjardins Securities inc.	90	$1,434	1.9%	Defined
Regime de rentes du Mouvement Desjardins	4,525	$72,128	98.1%	Defined

RHUMBLINE ADVISERS

$59,504

0.08%

3,733

NATIONAL BANK OF CANADA /FI/

$40,136

0.05%

2,518

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
National Bank Financial Inc.	2,518	$40,136	100.0%	Defined

ROYAL BANK OF CANADA

$29,918

0.04%

1,877

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Dominion Securities Inc.	50	$797	2.7%	Defined
RBC Rochdale, LLC	1,787	$28,484	95.2%	Defined
BREWIN DOLPHIN WEALTH MANAGEMENT LTD	40	$637	2.1%	Defined

NewEdge Advisors, LLC

$21,471

0.03%

1,347

BlackRock, Inc.

$13,676

0.02%

858

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Aperio Group, LLC	858	$13,676	100.0%	Sole

Farther Finance Advisors, LLC

$12,181

0.02%

937

Beaird Harris Wealth Management, LLC

$11,955

0.02%

750

GAMMA Investing LLC

$9,555

0.01%

735

JONES FINANCIAL COMPANIES LLLP

$7,858

0.01%

493

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	493	$7,858	100.0%	Sole

CoreCap Advisors, LLC

$6,955

0.01%

535

BARCLAYS PLC

$4,861

0.01%

305

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	305	$4,861	100.0%	Defined

JPMORGAN CHASE & CO

$3,857

0.01%

242

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	242	$3,857	100.0%	Defined

Westside Investment Management, Inc.

$2,665

0.00%

205

Global Retirement Partners, LLC

$2,646

0.00%

166

GROUP ONE TRADING LLC

$2,072

0.00%

130

HARBOUR INVESTMENTS, INC.

$1,562

0.00%

IFP Advisors, Inc

$1,482

0.00%

114

HighMark Wealth Management LLC

$797

0.00%

Arax Advisory Partners

$685

0.00%

Activest Wealth Management

$650

0.00%

BFC Planning, Inc.

$478

0.00%

Caitong International Asset Management Co., Ltd

$429

0.00%

Darwin Wealth Management, LLC

$398

0.00%

Continuum Advisory, LLC

$302

0.00%

Atlantic Union Bankshares Corp

$191

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SSB Wealth Management, Inc.	12	$191	100.0%	Sole

Truvestments Capital LLC

$191

0.00%

Parallel Advisors, LLC

$130

0.00%

CITIGROUP INC

$127

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	8	$127	100.0%	Defined

Creative Capital Management Investments LLC

$117

0.00%

Winch Advisory Services, LLC

$111

0.00%

MCGUIRE CAPITAL ADVISORS INC

$111

0.00%

Key Financial Inc

$104

0.00%

EASTERN BANK

$91

0.00%

Oakmont Advisory Group, LLC

$79

0.00%

Crewe Advisors LLC

$79

0.00%

Allworth Financial LP

$79

0.00%

SBI Securities Co., Ltd.

$65

0.00%

WHITTIER TRUST CO

$63

0.00%

Caitlin John, LLC

$31

0.00%

WHITTIER TRUST CO OF NEVADA INC

$15

0.00%

JFS WEALTH ADVISORS, LLC

$13

0.00%

Key facts CIK 897448 CUSIP 023111404 13F (30d) 26 filings 20 filers Visit website Investor relations