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Who owns AMRN?

Institutional ownership of Amarin Corporation plc from Form 13F, Q2 2026

80 institutional managers reported holding Amarin Corporation plc (AMRN) in Form 13F filings for Q2 2026, with 4,626,963 shares worth $73.4M. The largest reported holder was Sarissa Capital Management LP. Managers that filed both quarters added a net 30,713 shares (+0.7%). 21 opened new positions and 7 sold out.

Funds holding
80
Value held
$73.4M
New / sold out
21 / 7
Net shares, same filers
+0.7%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of AMRN

FundValueShare of 13F holdingsSharesMove
Sarissa Capital Management LP$26.7M36.2%1,673,395Unchanged
Acadian Asset Management LLC$11.5M15.6%720,984Added
Kynam Capital Management, LP$8.5M11.5%532,982Added
Morgan Stanley$3.6M4.8%223,617Trimmed
Waterfront Wealth Inc.$3.2M4.6%213,949Added
Brooklands Fund Management Ltd$2.7M3.8%177,325New
Eversept Partners, LP$2.3M3.1%145,296Trimmed
Millennium Management LLC$1.8M2.5%115,808Trimmed
Two Sigma Investments, LP$1.6M2.2%100,511Trimmed
Citadel Advisors LLC$1.5M2.1%95,364Added
BNP Paribas Financial Markets$1.1M1.6%71,813Trimmed
LCM Capital Management Inc$819K1.1%51,362Added
Renaissance Technologies LLC$771K1.0%48,369Added
Jane Street Group, LLC$600K0.8%37,628New
George Kaiser Family Foundation$593K0.8%37,207New
Sei Investments Co$466K0.6%29,211New
Susquehanna International Group, LLP$462K0.6%29,001Trimmed
State Street Corp$399K0.5%25,016Added
Bleakley Financial Group, LLC$375K0.5%23,505Trimmed
Ameriprise Financial Inc$303K0.4%18,982Added
State of New Jersey Common Pension Fund D$301K0.4%18,879Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys$293K0.4%18,370Unchanged
Raymond James Financial Inc$290K0.4%18,165Trimmed
R Squared Ltd$270K0.4%16,938New
State of Tennessee, Department of Treasury$239K0.3%15,004Unchanged

Share of 13F holdings is each fund's shares as a share of the 4,626,963 AMRN shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

  1. Brooklands Fund Management Ltd New+$2.7M
  2. Acadian Asset Management LLC Added+$1.3M
  3. Kynam Capital Management, LP Added+$966K
  4. Jane Street Group, LLC New+$600K
  5. George Kaiser Family Foundation New+$593K
  6. Sei Investments Co New+$466K
  7. Renaissance Technologies LLC Added+$464K
  8. R Squared Ltd New+$270K
  9. Quadrature Capital Ltd New+$237K
  10. Citadel Advisors LLC Added+$236K

Biggest sellers in Q2 2026

  1. Point72 Asset Management, L.P. Sold out-$3.5M
  2. Millennium Management LLC Trimmed-$2.9M
  3. Morgan Stanley Trimmed-$1.1M
  4. Goldman Sachs Group Inc Sold out-$172K
  5. Susquehanna International Group, LLP Trimmed-$138K
  6. Two Sigma Investments, LP Trimmed-$112K
  7. BNP Paribas Financial Markets Trimmed-$59K
  8. UBS Group AG Trimmed-$50K
  9. Eversept Partners, LP Trimmed-$39K
  10. Raymond James Financial Inc Trimmed-$15K

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $8.9M and sold $8.1M; 15 added and 13 trimmed.

Questions about AMRN ownership

Who owns AMRN stock?
80 institutional investment managers reported AMRN positions in their Form 13F filings for Q2 2026, holding 4,626,963 shares worth $73.4M in total. Sarissa Capital Management LP reported the largest position.
Are funds buying or selling AMRN?
In Q2 2026, 21 managers opened new AMRN positions, 15 added, 13 trimmed and 7 sold out. Managers that filed in both quarters added a net 30,713 shares.
How current is this AMRN institutional ownership data?
It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to AMRN by CUSIP. Options are left out. AMRN news and filings · AMRN insider trades · Top funds