⌘K

AMRN Institutional Ownership & 13F Holders | SmartMoneyDB

AMRNAMARIN CORP PLC

Smart Money Ownership

Of the 6 tracked institutions holding AMRN, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +5.7pt. It's a gauge of who owns the name, not just how many.

Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →

AMRN (AMARIN CORP PLC) Institutional Ownership Summary

Among the 6 tracked institutional investors we monitor, AMRN (AMARIN CORP PLC) is held with a combined value of $5.07M across 322,410 shares. The largest holder is MILLENNIUM MANAGEMENT LLC with a position worth $1.85M. 4 funds increased their holdings. 2 funds reduced their position.

Total Institutional Value

$5.07M

Total Shares Held

322,410

Institutional Holders

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

RENAISSANCE TECHNOLOGIES LLC+151% shares~$464.1K TWO SIGMA ADVISERS, LP+120% shares~$281.9K CITADEL ADVISORS LLC+18% shares~$236.2K STATE STREET CORP+0% shares~$1.2K

Biggest Sellers

13F Institutional Holders

Sort

MILLENNIUM MANAGEMENT LLC

RENAISSANCE TECHNOLOGIES LLC

0.00% of book+151.2%

$771.00K

TWO SIGMA ADVISERS, LP

#	Fund	Value↓	Shares	Portfolio %	Change
1	MILLENNIUM MANAGEMENT LLC	$1.85M	115,808	0.00%	-61.5%
2	CITADEL ADVISORS LLC	$1.52M	95,364	0.00%	+18.4%
3	RENAISSANCE TECHNOLOGIES LLC	$771.00K	48,369	0.00%	+151.2%
4	TWO SIGMA ADVISERS, LP	$516.26K	36,995	0.00%	+120.3%
5	STATE STREET CORP	$398.75K	25,016	0.00%	+0.3%
6	BlackRock, Inc.	$13.68K	858	0.00%	-26.3%

Activist & Large Holders (13D/13G)

Investor	Ownership	Type	Filed
Sarissa Capital Management LP	6.1%	13D/A	2026-08-27

SEC Schedule 13D (activist) and 13G (passive) filings for AMRN. Filed when an investor acquires 5%+ ownership.

Frequently Asked Questions

Which institutional investors own the most AMRN stock?

As of the latest SEC 13F filings, MILLENNIUM MANAGEMENT LLC is the largest institutional holder of AMRN with a position worth $1.85M, representing 0.00% of their portfolio. In total, 6 institutional investors hold AMRN with a combined value of $5.07M.

What percentage of AMRN is owned by institutional investors?

Institutional investors hold $5.07M worth of AMRN stock across 6 positions. The largest institutional holder is MILLENNIUM MANAGEMENT LLC with $1.85M in holdings.

What is a 13F filing and why does it matter for AMRN?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For AMRN, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track AMRN institutional moves

Get notified when hedge funds change their AMRN positions.