Amarin Corp
AMRN
82 hedge funds and large institutions have $64M invested in Amarin Corp in 2025 Q4 according to their latest regulatory filings, with 10 funds opening new positions, 26 increasing their positions, 17 reducing their positions, and 18 closing their positions.
3,492% more call options, than puts
Call options by funds: $467K | Put options by funds: $13K
53% more repeat investments, than reductions
Existing positions increased: 26 | Existing positions reduced: 17
2.46% more ownership
Funds ownership: 19.36% → 21.82% (+2.5%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
3% less capital invested
Capital invested by funds: $65.8M → $64M (-$1.82M)
10% less funds holding
Funds holding: 91 → 82 (-9)
44% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 18
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SCM
Sarissa Capital Management
Greenwich,
Connecticut
|
+$7.11M |
| 2 |
Acadian Asset Management
Boston,
Massachusetts
|
+$2.04M |
| 3 |
WW
Waterfront Wealth
Overland Park,
Kansas
|
+$1.07M |
| 4 |
Morgan Stanley
New York
|
+$997K |
| 5 |
Two Sigma Investments
New York
|
+$843K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
KCM
Kynam Capital Management
Princeton,
New Jersey
|
-$3.08M |
| 2 |
QOP
Quinn Opportunity Partners
Charlottesville,
Virginia
|
-$728K |
| 3 |
HKIM
Hayek Kallen Investment Management
Fairhope,
Alabama
|
-$423K |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$301K |
| 5 |
QC
Quadrature Capital
London,
United Kingdom
|
-$300K |
AMRN Hedge Fund Activity: Q4 2025 in Review
82 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Amarin Corp (AMRN) for Q4 2025, worth a combined $64M — down 2.8% from $65.8M a quarter earlier.
Sellers outnumbered buyers: 18 funds closed out of AMRN and 10 opened new positions — a net loss of 8 holders — while 17 trimmed existing stakes and 26 added.
The largest buyer was Sarissa Capital Management, adding an estimated $7.11M. The largest seller was Kynam Capital Management, cutting an estimated $3.08M.
- 82 institutional investors held Amarin Corp (AMRN) as of Q4 2025, down from 91 in Q3 2025.
- Funds reported $64M of Amarin Corp stock for Q4 2025, down 2.8% quarter-over-quarter.
- 10 funds opened new Amarin Corp positions in Q4 2025 and 18 closed out, a net change of -8 holders.
- The largest Amarin Corp buyer in Q4 2025 was Sarissa Capital Management, an estimated $7.11M added.
- The largest Amarin Corp seller in Q4 2025 was Kynam Capital Management, an estimated $3.08M sold.
Based on aggregated 13F filings for Q4 2025.