Amarin Ownership | Who Owns Amarin?
Amarin Ownership Summary
Amarin is owned by 22.40% institutional investors, 37.17% insiders, and 40.43% retail investors. Sarissa capital management lp is the largest institutional shareholder, holding 8.05% of AMRN shares. Waterfront OE is the top mutual fund, with 0.52% of its assets in Amarin shares.
AMRN Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Amarin | 22.40% | 37.17% | 40.43% |
| Sector | Healthcare Stocks | 50.51% | 12.37% | 37.12% |
| Industry | Drug Manufacturers - General Stocks | 51.73% | 3.54% | 44.73% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Sarissa capital management lp | 1.67M | 8.05% | $26.67M |
| Acadian asset management | 720.98K | 3.47% | $11.47M |
| Kynam capital management, lp | 532.98K | 2.56% | $8.50M |
| Morgan stanley | 223.62K | 1.08% | $3.56M |
| Waterfront wealth | 213.95K | 1.03% | $3.18M |
| Brooklands fund management | 177.32K | 0.85% | $2.74M |
| Eversept partners, lp | 145.30K | 0.70% | $2.32M |
| Millennium management | 115.81K | 0.56% | $1.85M |
| Two sigma investments, lp | 100.51K | 0.48% | $1.60M |
| Citadel advisors | 95.36K | 0.46% | $1.52M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Sarissa capital management lp | 1.67M | 15.00% | $26.67M |
| Brooklands fund management | 177.32K | 2.14% | $2.74M |
| Waterfront wealth | 213.95K | 0.49% | $3.18M |
| Kynam capital management, lp | 532.98K | 0.47% | $8.50M |
| Lcm capital management | 51.36K | 0.36% | $818.71K |
| Longitude | 1.62M | 0.17% | $785.70K |
| Verdad advisers, lp | 10.43K | 0.16% | $166.27K |
| R squared | 16.94K | 0.14% | $269.99K |
| Eversept partners, lp | 145.30K | 0.12% | $2.32M |
| Regis management | 350.00K | 0.07% | $241.00K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Brooklands fund management | 177.32K | 2.14% | 177.32K |
| Acadian asset management | 720.98K | 0.01% | 84.22K |
| Kynam capital management, lp | 532.98K | 0.47% | 60.60K |
| Jane street group | 37.63K | - | 37.63K |
| Newbridge financial services group | 37.40K | 0.00% | 37.40K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Dg capital management | - | - | -5.12M |
| Tang capital management | - | - | -2.50M |
| Price jennifer c. | - | - | -2.38M |
| Gsa capital partners llp | - | - | -853.35K |
| Longitude | 1.62M | 0.17% | -750.00K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| George kaiser family foundation | 37.21K | 0.06% | 37.21K | $593.08K |
| Arete wealth advisors | 26.91K | 0.01% | 26.91K | $429.01K |
| R squared | 16.94K | 0.14% | 16.94K | $269.99K |
| Quadrature capital | 14.84K | 0.00% | 14.84K | $236.58K |
| Cubist systematic strategies | 13.70K | 0.00% | 13.70K | $224.39K |
Sold Out
| Holder | Change |
|---|---|
| Cbiz investment advisory services | -5.00 |
| Principal securities | -9.00 |
| Mai capital management | -42.00 |
| Glenmede investment management, lp | -45.00 |
| Nelson, van denburg & campbell wealth management group | -50.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 86 | 22.86% | 4,658,902 | 1.33% | 22 | 1824.79% | 39 | 50.00% | 12 | -14.29% |
| Mar 31, 2026 | 69 | -15.85% | 4,596,336 | 1.30% | 1 | 92.65% | 26 | -25.71% | 13 | -23.53% |
| Dec 31, 2025 | 53 | -44.79% | 1,584,464 | -60.43% | - | 40.86% | 21 | -44.74% | 9 | -47.06% |
| Sep 30, 2025 | 92 | -1.08% | 4,002,266 | 13.70% | - | 133.88% | 37 | 48.00% | 16 | -73.77% |
| Jun 30, 2025 | 92 | -30.83% | 3,509,256 | -94.86% | - | 122.73% | 24 | -35.14% | 61 | 60.53% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Waterfront OE | 107.99K | 0.52% | 70.25K |
| Waterfront OS | 94.23K | 0.45% | - |
| Old Westbury Small & Mid Cap Strategies | 55.73K | 0.27% | - |
| PSM Value Strategy UI | 50.00K | 0.24% | 50.00K |
| State Street® SPDR® Ptf Dev Wld exUS ETF | 16.70K | 0.08% | - |
| SPDR® Portfolio Developed Wld ex-US ETF | 14.82K | 0.07% | - |
| SEI International Equity F (SIT) | 13.65K | 0.06% | - |
| iShares Nasdaq US Biotech ETF USD Acc | 11.93K | 0.06% | - |
| Fidelity Nasdaq Composite Index | 11.77K | 0.06% | - |
| Voya Multi-Manager International Sm Cp A | 10.54K | 0.05% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 02, 2024 | Berg Aaron | President and CEO | Buy | $102.40K |
| Jan 22, 2024 | Holt Patrick | President and CEO | Buy | $15.72K |
| Dec 12, 2023 | Ketchum Steven B | Chief Scientific Officer | Sell | $26.96K |
| Aug 16, 2023 | Holt Patrick | President and CEO | Buy | $71.26K |
| Aug 16, 2023 | Holt Patrick | President and CEO | Buy | $27.27K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | - |
| 2026 Q2 | - | - |
| 2026 Q1 | - | - |
| 2025 Q4 | - | - |
| 2025 Q3 | - | - |
AMRN Ownership FAQ
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