Amarin Corp Plc\Uk AMRN Institutional Ownership

NASDAQ AMRN

$11.51 +0.03 (+0.26%)

At close: Oct 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

83 Institutions

Increased 39 47.0%

Unchanged 31 37.3%

Reduced 13 15.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

1.11%

▲+0.01 pp QoQ

Shares Held by Institutions

4.66Mn

of 420.04Mn outstanding

▲+1.02% QoQ

Shares Outstanding

420.04Mn

415.39Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+15 vs prior quarter

Net Shares Added (QoQ)

+47.16K

accumulated since last quarter

Value of Holdings

$53.48Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Amarin Corp Plc (NASDAQ:AMRN) was reported as a holding by 83 institutional investors in 13F filings for the quarter ended June 30, 2026.

Together they owned 1.11% of the outstanding stock in Q2 2026, up from 1.10% a quarter earlier.
Total shares held in Amarin Corp Plc rose 1.02% versus Q1 2026, while the number of holders fell 5.68% versus Q2 2025.
Among the 83 holders of Amarin Corp Plc, 39 added to their positions, 13 reduced their stakes and 31 left their positions unchanged.
In total, institutional investors held 4.66Mn shares of Amarin Corp Plc at the end of Q2 2026, up 47.16K from the prior quarter and up 1.33Mn from a year earlier.
Sarissa Capital Management LP led 13F holders of AMRN with 1.67Mn shares as of June 30, 2026, or 0.40% of shares outstanding.
Holders that added the most shares of Amarin Corp Plc in Q2 2026 were Acadian Asset Management LLC (+84.22K shares), Kynam Capital Management, LP (+60.6K shares), Renaissance Technologies LLC (+29.11K shares), Citadel Advisors LLC (+14.79K shares) and Waterfront Wealth Inc. (+10.61K shares).
Holders that trimmed the most shares of Amarin Corp Plc in Q2 2026 while keeping a position were Millennium Management LLC (-184.73K shares), Morgan Stanley (-69.56K shares), Susquehanna International Group, LLP (-8.67K shares), Two Sigma Investments, LP (-7.03K shares) and BNP Paribas Financial Markets (-3.69K shares).
Per Business Quant data, the 10 largest holders of Amarin Corp Plc at the end of Q2 2026 were Sarissa Capital Management LP (1.67Mn shares), Acadian Asset Management LLC (720.98K shares), Kynam Capital Management, LP (532.98K shares), Morgan Stanley (223.62K shares), Waterfront Wealth Inc. (213.95K shares), Brooklands Fund Management Ltd (177.32K shares), Eversept Partners, LP (145.3K shares), Millennium Management LLC (115.81K shares), Two Sigma Investments, LP (100.51K shares) and Citadel Advisors LLC (95.36K shares).

Form 13F Holdings

83 Institutional Holders

Report period 30 Jun, 2026

Total shares held 4.66Mn

Of outstanding 1.11%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Sarissa Capital Management LP	0001577524	1,673,395	0.40%	0	0.00%	$26.67Mn
2	ACADIAN ASSET MANAGEMENT LLC	0000916542	720,984	0.17%	▲84,215	+13.23%	$11.47K
3	Kynam Capital Management, LP	0001907884	532,982	0.13%	▲60,600	+12.83%	$8.50Mn
4	Morgan Stanley	0000895421	223,617	0.05%	▼69,555	-23.72%	$3.56Mn
5	Waterfront Wealth Inc.	0001775210	213,949	0.05%	▲10,611	+5.22%	$3.18Mn
6	Brooklands Fund Management Ltd	0002036388	177,325	0.04%	▲177,325	0.00%	$2.74Mn
7	Eversept Partners, LP	0001697013	145,296	0.03%	▼2,419	-1.64%	$2.32Mn
8	MILLENNIUM MANAGEMENT LLC	0001273087	115,808	0.03%	▼184,728	-61.47%	$1.85Mn
9	TWO SIGMA INVESTMENTS, LP	0001179392	100,511	0.02%	▼7,031	-6.54%	$1.60Mn
10	CITADEL ADVISORS LLC	0001423053	95,364	0.02%	▲14,789	+18.35%	$1.52Mn
11	BNP PARIBAS FINANCIAL MARKETS	0001166588	71,813	0.02%	▼3,690	-4.89%	$1.14Mn
12	LCM Capital Management Inc	0001861752	51,362	0.01%	▲7,900	+18.18%	$818.71K
13	RENAISSANCE TECHNOLOGIES LLC	0001037389	48,369	0.01%	▲29,113	+151.19%	$771.00K
14	JANE STREET GROUP, LLC	0001595888	37,628	0.01%	▲37,628	0.00%	$599.79K
15	GEORGE KAISER FAMILY FOUNDATION	0001265376	37,207	0.01%	▲37,207	0.00%	$593.08K
16	Sei Investments Co	0000350894	29,211	0.01%	▲29,211	0.00%	$465.63K
17	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	29,001	0.01%	▼8,666	-23.01%	$462.28K
18	Arete Wealth Advisors, LLC	0001600151	26,914	0.01%	▲26,914	0.00%	$429.01K
19	State Street Corp	0000093751	25,016	0.01%	▲67	+0.27%	$398.76K
20	Bleakley Financial Group, LLC	0001936953	23,505	0.01%	▼59	-0.25%	$374.67K

Showing 1 to 20 of 83 holders