AnaptysbioANAB
13F holders, Q2 2026 (June 30)213holders +5
43new positions
37sold out
7famous investors
$68.04avg. 13F price*
At the end of Q2 2026, 213 institutions reported holding Anaptysbio Inc. (ANAB) in their 13F filings, up 5 from Q1 2026. 43 opened new positions and 37 sold out. The largest holders were EcoR1 Capital, LLC ($531.9M), BlackRock, Inc. ($124.5M) and Tang Capital Management LLC ($89.8M). 7 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Anaptysbio Inc.
- CUSIP
- 032724106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 43 | $104.3M |
| Exits | 37 | $47.8M |
All 13F filers, Q1 2026 → Q2 2026: 4,673,394 shares bought and 2,792,152 shares sold, net +1,881,242 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 213 holders
| EcoR1 Capital, LLC | 26.38% | No change | 7,880,094 | $531.9M |
| BlackRock, Inc. | 0.00% | Add +9.7% | 1,844,049 | $124.5M |
| Tang Capital Management LLC | 4.10% | No change | 1,330,879 | $89.8M |
| State Street Corp. | 0.00% | Add +29.6% | 1,286,194 | $86.8M |
| Vanguard Capital Management LLC | 0.00% | Add +6.2% | 906,233 | $61.2M |
| Affinity Asset Advisors, LLC | 2.77% | Reduce -12.1% | 826,109 | $55.8M |
| Sanofi | 10.39% | No change | 821,917 | $55.5M |
| Millennium Management | 0.04% | Add +69.8% | 807,316 | $54.5M |
| Woodline Partners LP | 0.15% | Add +108.3% | 717,014 | $48.4M |
| 683 Capital Management, LLC | 4.28% | Add +5.6% | 660,000 | $44.6M |
| Geode Capital Management, LLC | 0.00% | Add +22.6% | 637,873 | $43.1M |
| Palo Alto Investors LP | 5.63% | Reduce -5.4% | 603,489 | $40.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +75.5% | 584,070 | $39.4M |
| First Light Asset Management, LLC | 2.39% | Add +2.9% | 582,004 | $39.3M |
| D. E. Shaw & Co. | 0.02% | Reduce -6.8% | 539,666 | $36.4M |
| Vanguard Portfolio Management LLC | 0.00% | Add +1.5% | 527,858 | $35.6M |
| Apis Capital Advisors, LLC | 3.27% | Add +108.8% | 497,000 | $33.5M |
| Sofinnova Investments, Inc. | 1.78% | Add +98.8% | 493,536 | $33.3M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Reduce -0.7% | 488,651 | $33.0M |
| Nuveen, LLC | 0.01% | Add +33.1% | 420,664 | $28.4M |
| Bank of America Corp. | 0.00% | Reduce -16.6% | 417,812 | $28.2M |
| Citadel Advisors | 0.02% | Add +68.9% | 394,373 | $26.6M |
| Federated Hermes, Inc. | 0.04% | Add +7.6% | 391,667 | $26.4M |
| Squarepoint Ops LLC | 0.04% | Add +21.2% | 324,446 | $21.9M |
| Two Sigma Investments, LP | 0.01% | Reduce -43.5% | 262,995 | $17.8M |
| First Trust Advisors LP | 0.01% | New | 258,989 | $17.5M |
| Morgan Stanley | 0.00% | Reduce -74.1% | 257,091 | $17.4M |
| Coppell Advisory Solutions LLC | 1.38% | New | 3,638 | $16.6M |
| FMR LLC | 0.00% | Reduce -49.1% | 240,511 | $16.2M |
| Qube Research & Technologies Ltd | 0.02% | Reduce -10.2% | 228,777 | $15.4M |
| HSBC Holdings PLC | 0.01% | Add +72.6% | 216,949 | $14.9M |
| Empowered Funds, LLC | 0.07% | New | 206,010 | $13.9M |
| Northern Trust Corp. | 0.00% | Add +10.5% | 202,767 | $13.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +5.0% | 202,305 | $13.7M |
| Invesco Ltd. | 0.00% | Add +66.8% | 202,056 | $13.6M |
| Dimensional Fund Advisors LP | 0.00% | New | 185,444 | $12.5M |
| Greenhaven Road Investment Management, L.P. | 7.50% | New | 171,059 | $11.5M |
| Victory Capital Management Inc. | 0.01% | Add +56.4% | 169,227 | $11.4M |
| Mackenzie Financial Corp. | 0.01% | Add +347.7% | 150,979 | $10.2M |
| UBS Group AG | 0.00% | Add +84.3% | 146,832 | $9.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +8.6% | 146,724 | $9.9M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Reduce -11.1% | 141,026 | $9.5M |
| Ensign Peak Advisors, Inc | 0.01% | Reduce -14.8% | 107,096 | $7.2M |
| Franklin Resources Inc. | 0.00% | Add +62.5% | 106,949 | $7.2M |
| Citigroup Inc. | 0.00% | Add +35.0% | 99,114 | $6.7M |
| Nomura Asset Management International Inc. | 0.01% | No change | 93,732 | $6.3M |
| Prudential Financial Inc. | 0.01% | Add +34.2% | 85,932 | $5.8M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.00% | New | 83,942 | $5.7M |
| JPMorgan Chase & Co. | 0.00% | Add +589.0% | 80,236 | $5.3M |
| Granahan Investment Management, LLC | 0.18% | Add +14.8% | 75,962 | $5.1M |
| Irenic Capital Management LP | 0.34% | New | 70,447 | $4.8M |
| Eversept Partners, LP | 0.26% | Add +158.3% | 69,983 | $4.7M |
| SG Americas Securities, LLC | 0.00% | Add +168.5% | 66,730 | $4.5M |
| Jacobs Levy Equity Management, Inc. | 0.02% | Add +117.8% | 62,336 | $4.2M |
| State of Wisconsin Investment Board | 0.01% | Add +123.6% | 61,753 | $4.2M |
| Renaissance Technologies | 0.01% | Reduce -35.9% | 58,300 | $3.9M |
| Voloridge Investment Management, LLC | 0.02% | Reduce -27.1% | 57,555 | $3.9M |
| Bank of New York Mellon Corp | 0.00% | Add +10.3% | 56,401 | $3.8M |
| Deutsche Bank AG | 0.00% | Reduce -9.9% | 46,884 | $3.2M |
| AQR Capital Management | 0.00% | Add +42.7% | 46,323 | $3.1M |
| Marshall Wace, LLP | 0.00% | Reduce -35.6% | 43,822 | $3.0M |
| Bleakley Financial Group, LLC | 0.04% | Reduce -0.8% | 42,761 | $2.9M |
| Wellington Management Group LLP | 0.00% | Reduce -10.8% | 41,796 | $2.8M |
| Wells Fargo & Company | 0.00% | Add +25.7% | 41,707 | $2.8M |
| HighMark Wealth Management LLC | 0.90% | Reduce -57.8% | 39,716 | $2.7M |
| Capital Fund Management S.A. | 0.02% | New | 39,142 | $2.6M |
| Trexquant Investment LP | 0.01% | Reduce -58.4% | 35,404 | $2.4M |
| Atom Investors LP | 0.20% | New | 33,917 | $2.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +9.0% | 32,374 | $2.2M |
| Swiss National Bank | 0.00% | Add +14.9% | 31,700 | $2.1M |
| Voleon Capital Management LP | 0.04% | New | 31,425 | $2.1M |
| Tema ETFs LLC | 0.07% | Add +0.7% | 31,270 | $2.1M |
| Tidal Investments LLC | 0.01% | Reduce -14.0% | 31,270 | $2.1M |
| Moody Aldrich Partners LLC | 0.38% | Reduce -21.6% | 30,926 | $2.1M |
| Aquatic Capital Management LLC | 0.07% | New | 30,813 | $2.1M |
| SummitTX Capital, L.P. | 0.05% | New | 28,779 | $1.9M |
| Alliancebernstein L.P. | 0.00% | Add +4.8% | 32,820 | $1.8M |
| Rhumbline Advisers | 0.00% | Add +10.5% | 26,346 | $1.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -24.1% | 23,310 | $1.6M |
| Burney Co./ | 0.04% | New | 22,557 | $1.5M |
| Rafferty Asset Management, LLC | 0.00% | Reduce -19.8% | 21,864 | $1.5M |
| XTX Topco Ltd | 0.02% | Reduce -57.6% | 21,411 | $1.4M |
| Hussman Strategic Advisors, Inc. | 0.33% | No change | 21,000 | $1.4M |
| Tudor Investment Corporation | 0.01% | Add +303.4% | 20,019 | $1.4M |
| Credit Agricole S A | 0.00% | No change | 20,000 | $1.4M |
| Martingale Asset Management L P | 0.03% | Reduce -29.1% | 19,942 | $1.3M |
| Creative Planning | 0.00% | Add +11.5% | 18,773 | $1.3M |
| Y-Intercept (Hong Kong) Ltd | 0.02% | Reduce -18.6% | 18,468 | $1.2M |
| California State Teachers Retirement System | 0.00% | Add +25.9% | 17,629 | $1.2M |
| Los Angeles Capital Management LLC | 0.00% | Add +11.9% | 17,536 | $1.2M |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 0.01% | Add +7.5% | 17,250 | $1.2M |
| Diametric Capital, LP | 0.12% | New | 16,868 | $1.1M |
| Canada Pension Plan Investment Board | 0.00% | Add +10.7% | 16,500 | $1.1M |
| Legal & General Group Plc | 0.00% | Add +18.7% | 16,415 | $1.1M |
| Russell Investments Group, Ltd. | 0.00% | Add +22.7% | 16,301 | $1.1M |
| Massachusetts Financial Services Co. | 0.00% | New | 15,870 | $1.1M |
| Cresset Asset Management, LLC | 0.00% | Add +3.9% | 14,412 | $973K |
| Vanguard Global Advisers, LLC | 0.00% | Add +18.4% | 13,919 | $940K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +39.6% | 13,405 | $905K |
| Brevan Howard Capital Management LP | 0.01% | Add +20.9% | 13,329 | $900K |
"% of holder's portfolio" is ANAB's weight in each manager's 13F, not the share of Anaptysbio Inc. the manager owns.