Ticker · CUSIP 032724106
Holders (tracked)
13
Combined shares
4,102,137
Combined value
$198.87M
Last close
$67.51
Quarter
2025Q4
Price · 1Y$67.51+46.96 (+228.52%)H $70.22 · L $19.40 · Avg Vol 556K
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +39.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
21 events
- Wellington Management trimmed2026-02-17−5,544 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) added2026-02-17+83,003 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+215 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+135 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+320,928 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−705,659 shares · 2025Q4Position
- Steve Cohen (Point72) trimmed2026-02-17−332,638 shares · 2025Q4Position
- T. Rowe Price trimmed2026-02-17−273,306 shares · 2025Q4Position
- +17,305 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−47,000 shares · 2025Q4Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−2,314 shares · 2025Q4Position
- −9,419 shares · 2025Q3Position
- Steve Cohen (Point72) trimmed2025-11-14−209,346 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+25,051 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+237,011 shares · 2025Q3Position
- T. Rowe Price trimmed2025-11-14−373,860 shares · 2025Q3Position
- Wellington Management trimmed2025-11-14−13,482 shares · 2025Q3Position
- AQR Capital Management trimmed2025-11-14−1,548 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+1,315,688 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−139,786 shares · 2025Q3Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−21 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ANAB…
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) | 2018Q3 | $19.01 | +255.1% | $130.5M |
| Two Sigma Investments | 2017Q3 | $22.01 | +206.7% | $17.3M |
| Renaissance Technologies | 2017Q3 | $22.19 | +204.2% | $5.2M |
| AQR Capital Management | 2018Q1 | $23.36 | +189.0% | $1.8M |
| Ken Fisher (Fisher Asset Mgmt) | 2021Q3 | $27.29 | +147.4% | $3.8M |
| Wellington Management | 2018Q1 | $29.05 | +132.4% | $4.1M |
| T. Rowe Price | 2017Q4 | $29.84 | +126.3% | $1.8M |
| Paul Tudor Jones (Tudor Investment) | 2019Q3 | $36.12 | +86.9% | $1.2M |
| D.E. Shaw & Co. | 2017Q3 | $38.23 | +76.6% | $45.3M |
| Ken Griffin (Citadel Advisors) | 2017Q3 | $46.76 | +44.4% | $2.1M |
| Ken Griffin (Citadel Advisors) | 2017Q3 | $46.76 | +44.4% | $2.1M |
| Ken Griffin (Citadel Advisors) | 2017Q3 | $46.76 | +44.4% | $2.1M |
| Izzy Englander (Millennium Mgmt) | 2017Q1 | $48.24 | +39.9% | $54.9M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions1
- Paul Tudor Jones (Tudor Investment)+17,305$839K
Added to4
- D.E. Shaw & Co.+320,928$15.6M
- Ken Griffin (Citadel Advisors)+83,003$4.0M
- Two Sigma Investments+215$10K
- AQR Capital Management+135$7K
Trimmed6
- Izzy Englander (Millennium Mgmt)−705,659$34.2M
- Steve Cohen (Point72)−332,638$16.1M
- Renaissance Technologies−47,000$2.3M
- Wellington Management−5,544$269K
- Ken Fisher (Fisher Asset Mgmt)−2,314$112K
- T. Rowe Price−273,306$13K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 11 | $88.2M |
| 2022Q2 | 11 | $63.3M |
| 2022Q3 | 9 | $129.5M |
| 2022Q4 | 11 | $151.6M |
| 2023Q1 | 11 | $94.7M |
| 2023Q2 | 10 | $88.1M |
| 2023Q3 | 11 | $70.0M |
| 2023Q4 | 12 | $77.7M |
| 2024Q1 | 12 | $92.5M |
| 2024Q2 | 12 | $78.8M |
| 2024Q3 | 13 | $80.6M |
| 2024Q4 | 11 | $30.4M |
| 2025Q1 | 13 | $85.9M |
| 2025Q2 | 13 | $95.8M |
| 2025Q3 | 13 | $154.4M |
| 2025Q4 | 13 | $198.9M |
Who owns ANAB
13 super-investors · 2025Q4
Tracked stake
4.10M
shares
Combined value
$199M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added6Trim6
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Steve Cohen Point72 | 1.93M | $94M |
| 2 | Izzy Englander Millennium Mgmt | 813.6K | $39M |
| 3 | D.E. Shaw & Co. | 670.3K | $32M |
| 4 | Two Sigma Investments | 256.6K | $12M |
| 5 | Ken Griffin Citadel Advisors | 109.5K | $5M |
| 6 | Renaissance Technologies | 76.3K | $4M |
| 7 | Wellington Management | 61.2K | $3M |
| 8 | Ken Fisher Fisher Asset Mgmt | 56.6K | $3M |
| 9 | Ken Griffin Citadel Advisors | 30.4K | $1M |
| 10 | AQR Capital Management | 26.3K | $1M |
| 11 | T. Rowe Price | 26.0K | $1M |
| 12 | Ken Griffin Citadel Advisors | 25.2K | $1M |
| 13 | Paul Tudor Jones Tudor Investment | 17.3K | $839K |
Recent moves
20 transactions
- −5,544 · 2025Q4
- +135 · 2025Q4
- −705,659 · 2025Q4
- +83,003 · 2025Q4
- +215 · 2025Q4
- −332,638 · 2025Q4
- +17,305 · 2025Q4
- TRIMT. Rowe Price−273,306 · 2025Q4
- +320,928 · 2025Q4
- −47,000 · 2025Q4
- −2,314 · 2025Q4
- −9,419 · 2025Q3
- −209,346 · 2025Q3
- TRIMT. Rowe Price−373,860 · 2025Q3
- +237,011 · 2025Q3
- +1,315,688 · 2025Q3
- −13,482 · 2025Q3
- +25,051 · 2025Q3
- −1,548 · 2025Q3
- −139,786 · 2025Q3
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