ANAB
AnaptysBio, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +18.2% ·
share flow +30.0% ·
net new positions +15.4%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 86 | +7 | 13.42M | $905.56M | +13 | −6 |
| Q1 2026 | 82 | +8 | 12.40M | $687.67M | +10 | −2 |
| Q4 2025 | 74 | -1 | 13.98M | $677.76M | n/a | −1 |
| Q3 2025 | 20 | +1 | 11.93M | $365.35M | +1 | n/a |
| Q2 2025 | 16 | 0 | 9.08M | $201.48M | +1 | −1 |
| Q1 2025 | 13 | +2 | 6.02M | $111.87M | +2 | n/a |
| Q4 2024 | 11 | -2 | 3.90M | $51.60M | n/a | −2 |
| Q3 2024 | 12 | +2 | 2.80M | $93.85M | +2 | n/a |
| Q2 2024 | 10 | n/a | 1.82M | $45.55M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Point72 Asset Management ✦ | 2.37M | New | $44.03M | 0.1% | New | 1 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 915.08K | -1.1% | $17.01M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 3 | State Street Global Advisors ✦ (passive) | 860.72K | -33.1% | $16.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 491.17K | +0.9% | $9.13M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 5 | Citadel Advisors ✦ | 372.57K | +114.5% | $6.93M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 6 | Renaissance Technologies ✦ | 338.70K | +75.3% | $6.30M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 265.86K | -24.5% | $4.94M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | D. E. Shaw & Co. ✦ | 129.65K | -34.2% | $2.41M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | Marshall Wace ✦ | 92.87K | New | $1.73M | 0.0% | New | 1 | SEC ↗ ×2 |
| 10 | Wellington Management ✦ | 76.02K | +14.4% | $1.41M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 11 | Fisher Asset Management ✦ | 58.88K | 0.0% | $1.09M | 0.0% | Held | 4 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 30.01K | +153.3% | $557,904 | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 13 | Millennium Management ✦ | 17.81K | -87.8% | $331,032 | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $44.03M | 0.1% |
| Marshall Wace | $1.73M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 205 holders, 28.23M shares, $1.54B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 5.00K sh · $249,372
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology