Amarin Corp Plc\Uk AMRN Institutional Ownership

NASDAQ AMRN

$13.00 -0.14 (-1.07%)

At close: Sep 30, 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

1.12%

▲+0.02 pp QoQ

Shares Held by Institutions

4.66Mn

of 416.44Mn outstanding

▲+7.28% QoQ

Shares Outstanding

416.44Mn

411.79Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+15 vs prior quarter

Net Shares Added (QoQ)

+316.32K

accumulated since last quarter

Value of Holdings

$60.57Mn

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

Quarter ending 30 Jun, 2026

Amarin Corp Plc\Uk (NASDAQ:AMRN) is held by 83 institutional investors per 13F filings through June 2026.

These investors held 1.1% of outstanding shares in June 2026, up from 1.1% in March 2026.
Their total shares held in AMRN increased 7.28% from the prior quarter, while the number of investors in Amarin Corp Plc\Uk decreased 8.79% year over year.
Of these 83 holders, 39 added to their stakes in Amarin Corp Plc\Uk, 13 trimmed positions, and 31 made no changes.
Altogether, these fund groups held 4.66Mn shares in AMRN by June 2026, up by 316.32K shares quarter on quarter, and up 1.33Mn shares year over year.
Sarissa Capital Management LP leads ownership in AMRN with 1.67Mn shares as of June 30, 2026, equal to 0.4% of outstanding shares.
The biggest buyers of Amarin Corp Plc\Uk for the quarter ending June 2026 included Brooklands Fund Management Ltd (177.32K), ACADIAN ASSET MANAGEMENT LLC (84.22K), Kynam Capital Management, LP (60.6K), JANE STREET GROUP, LLC (37.63K), GEORGE KAISER FAMILY FOUNDATION (37.21K).
Leading sellers of Amarin Corp Plc\Uk shares for the quarter ending June 2026 were MILLENNIUM MANAGEMENT LLC (184.73K), Morgan Stanley (69.56K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (8.67K), TWO SIGMA INVESTMENTS, LP (7.03K), BNP PARIBAS FINANCIAL MARKETS (3.69K).
According to Business Quant data, leading holders of AMRN for June 2026 are Sarissa Capital Management LP (1.67Mn), ACADIAN ASSET MANAGEMENT LLC (720.98K), Kynam Capital Management, LP (532.98K), Morgan Stanley (223.62K), Waterfront Wealth Inc. (213.95K), Brooklands Fund Management Ltd (177.32K), Eversept Partners, LP (145.3K), MILLENNIUM MANAGEMENT LLC (115.81K), TWO SIGMA INVESTMENTS, LP (100.51K), CITADEL ADVISORS LLC (95.36K).

Form 13F Holdings

83 Institutional Holders

Report period 30 Jun, 2026

Total shares held 4.66Mn

Of outstanding 1.12%

#	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