Who owns AnaptysBio, Inc.?
Institutional ownership of ANAB from SEC Form 13F filings across 144 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
144
13F holders
$922.3M
value, 2026 filers
46.5%
of shares outstanding (13.8M sh)
27
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ANAB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.8M | $124.5M | 0.0% | 6.2% | +9.7% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 906,233 | $61.2M | 0.0% | 3.1% | -46.9% |
| 3 | MILLENNIUM MANAGEMENT LLC | 807,316 | $54.5M | 0.0% | 2.7% | +69.8% |
| 4 | Woodline Partners LP | 717,014 | $48.4M | 0.1% | 2.4% | +4.1% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 637,873 | $43.1M | 0.0% | 2.2% | +22.6% |
| 6 | GOLDMAN SACHS GROUP INC | 584,070 | $39.4M | 0.0% | 2% | +75.5% |
| 7 | D. E. Shaw & Co., Inc. | 539,666 | $36.4M | 0.0% | 1.8% | -6.8% |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 527,858 | $35.6M | 0.0% | 1.8% | +1.5% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 488,651 | $33.0M | 0.0% | 1.7% | -0.7% |
| 10 | Nuveen, LLC | 420,664 | $28.4M | 0.0% | 1.4% | +33.1% |
| 11 | BANK OF AMERICA CORP /DE/ | 417,812 | $28.2M | 0.0% | 1.4% | -16.6% |
| 12 | CITADEL ADVISORS LLC | 394,373 | $26.6M | 0.0% | 1.3% | +68.9% |
| 13 | FEDERATED HERMES, INC. | 391,667 | $26.4M | 0.0% | 1.3% | +7.6% |
| 14 | Squarepoint Ops LLC | 324,446 | $21.9M | 0.0% | 1.1% | +21.2% |
| 15 | TWO SIGMA INVESTMENTS, LP | 262,995 | $17.8M | 0.0% | 0.9% | -43.5% |
| 16 | FIRST TRUST ADVISORS LPNEW | 258,989 | $17.5M | 0.0% | 0.9% | new |
| 17 | MORGAN STANLEY | 257,091 | $17.4M | 0.0% | 0.9% | -74.1% |
| 18 | FMR LLC | 240,511 | $16.2M | 0.0% | 0.8% | -49.1% |
| 19 | Qube Research & Technologies Ltd | 228,777 | $15.4M | 0.0% | 0.8% | -10.2% |
| 20 | HSBC HOLDINGS PLC | 216,949 | $14.9M | 0.0% | 0.7% | +72.6% |
| 21 | NORTHERN TRUST CORP | 202,767 | $13.7M | 0.0% | 0.7% | +10.5% |
| 22 | Sixth Street Partners Management Company, L.P.NEW | 202,305 | $13.7M | 2.4% | 0.7% | new |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 202,305 | $13.7M | 0.0% | 0.7% | +5.0% |
| 24 | Invesco Ltd. | 202,056 | $13.6M | 0.0% | 0.7% | +66.8% |
| 25 | VICTORY CAPITAL MANAGEMENT INC | 169,227 | $11.4M | 0.0% | 0.6% | +56.4% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.