Ticker · CUSIP 023111404
Holders (tracked)
5
Combined shares
494,298
Combined value
$6.90M
Last close
$14.98
Quarter
2025Q4
Price · 1Y$14.98+5.87 (+64.43%)H $20.25 · L $9.11 · Avg Vol 94K
Position opened
Tracked holders · last 8 quarters
Flat over the last 3 quarters.
Price is +7.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
6 events
- Ken Griffin (Citadel Advisors) added2026-02-17+45,713 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+51,097 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+33,844 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+36,491 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+87,147 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+1,047 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of AMRN…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Steve Cohen (Point72) | 2025Q4 | $13.96 | +7.3% | $547K |
| Ken Griffin (Citadel Advisors) | 2025Q2 | $14.13 | +6.0% | $2.5M |
| Ken Griffin (Citadel Advisors) | 2025Q2 | $14.13 | +6.0% | $2.5M |
| Two Sigma Investments | 2025Q2 | $15.18 | -1.3% | $1.7M |
| Izzy Englander (Millennium Mgmt) | 2025Q2 | $15.84 | -5.4% | $2.5M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions1
- Steve Cohen (Point72)+36,491$509K
Added to3
- Two Sigma Investments+51,097$713K
- Ken Griffin (Citadel Advisors)+45,713$638K
- Izzy Englander (Millennium Mgmt)+33,844$472K
Trimmed0
—
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2025Q2 | 5 | $3.2M |
| 2025Q3 | 5 | $5.7M |
| 2025Q4 | 5 | $6.9M |
Who owns AMRN
5 super-investors · 2025Q4
Tracked stake
494.3K
shares
Combined value
$7M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 168.0K | $2M |
| 2 | Izzy Englander Millennium Mgmt | 166.2K | $2M |
| 3 | Two Sigma Investments | 111.2K | $2M |
| 4 | Steve Cohen Point72 | 36.5K | $509K |
| 5 | Ken Griffin Citadel Advisors | 12.4K | $173K |
Recent moves
8 transactions
- +45,713 · 2025Q4
- +51,097 · 2025Q4
- +33,844 · 2025Q4
- +36,491 · 2025Q4
- +87,147 · 2025Q3
- +1,047 · 2025Q3
- +59,024 · 2025Q2
- +45,244 · 2025Q2
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