Ticker · CUSIP 02074J501
Holders (tracked)
3
Combined shares
237,589
Combined value
$1.54M
Last close
$6.94
Quarter
2025Q4
Price · 1Y$6.94+2.82 (+68.45%)H $11.24 · L $4.12 · Avg Vol 88K
Position opened
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 5.
Price is +6.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
7 events
- Izzy Englander (Millennium Mgmt) exited2026-02-17−17,250 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+34,844 shares · 2025Q4Position
- +118,421 shares · 2025Q4Position
- +61,596 shares · 2025Q4Position
- −70,000 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+26 shares · 2025Q3Position
- Two Sigma Investments opened position2025-11-14+22,728 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ACOG…
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 |
|---|---|---|---|---|
| Paul Tudor Jones (Tudor Investment) | 2024Q4 | $5.89 | +17.8% | $427K |
| Ken Griffin (Citadel Advisors) | 2025Q4 | $6.50 | +6.8% | $822K |
| Two Sigma Investments | 2025Q3 | $6.50 | +6.7% | $400K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Ken Griffin (Citadel Advisors)+118,421$770K
- Paul Tudor Jones (Tudor Investment)+61,596$400K
Added to1
- Two Sigma Investments+34,844$226K
Trimmed0
—
Exited1
- Izzy Englander (Millennium Mgmt)−17,250$112K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2024Q4 | 1 | $412K |
| 2025Q1 | 1 | $354K |
| 2025Q2 | 2 | $814K |
| 2025Q3 | 2 | $260K |
| 2025Q4 | 3 | $1.5M |
Who owns ACOG
3 super-investors · 2025Q4
Tracked stake
237.6K
shares
Combined value
$2M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 118.4K | $770K |
| 2 | Paul Tudor Jones Tudor Investment | 61.6K | $400K |
| 3 | Two Sigma Investments | 57.6K | $374K |
Recent moves
9 transactions
- +118,421 · 2025Q4
- +34,844 · 2025Q4
- −17,250 · 2025Q4
- +61,596 · 2025Q4
- −70,000 · 2025Q3
- +26 · 2025Q3
- +22,728 · 2025Q3
- +17,224 · 2025Q2
- +70,000 · 2024Q4
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