Zenas BiopharmaZBIO
13F holders, Q4 2025 (December 31)119holders +39
41new positions
8sold out
4famous investors
$36.21avg. 13F price*
At the end of Q4 2025, 119 institutions reported holding Zenas Biopharma Inc. (ZBIO) in their 13F filings, up 39 from Q3 2025. 41 opened new positions and 8 sold out. The largest holders were FMR LLC ($279.7M), SR One Capital Management, LP ($182.9M) and Enavate Sciences Gp, LLC ($142.3M). 4 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Zenas Biopharma Inc.
- CUSIP
- 98937L105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 41 | $107.9M |
| Exits | 8 | $42.3M |
All 13F filers, Q3 2025 → Q4 2025: 9,619,850 shares bought and 3,213,664 shares sold, net +6,406,186 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 119 holders
| FMR LLC | 0.01% | Add +59.8% | 7,704,255 | $279.7M |
| SR One Capital Management, LP | 25.90% | Add +2.6% | 5,037,854 | $182.9M |
| Enavate Sciences Gp, LLC | 28.08% | Add +4.2% | 3,919,159 | $142.3M |
| NEA Management Company, LLC | 6.52% | Add +28.9% | 3,523,219 | $127.9M |
| Federated Hermes, Inc. | 0.16% | Add +45.9% | 2,715,578 | $98.6M |
| Fairmount Funds Management LLC | 6.11% | Add +16.7% | 2,209,025 | $80.2M |
| NVP Associates, LLC | 26.16% | No change | 1,838,482 | $66.8M |
| BlackRock, Inc. | 0.00% | Add +43.9% | 1,767,518 | $64.2M |
| Vanguard Group Inc. | 0.00% | Add +25.0% | 1,453,065 | $52.8M |
| Novo Holdings A/S | 4.09% | Reduce -27.5% | 1,450,000 | $52.6M |
| Royalty Pharma Sub-Manager, LLC | 26.77% | — | 1,263,150 | $45.9M |
| Polar Capital Holdings Plc | 0.18% | New | 1,057,609 | $38.4M |
| Wellington Management Group LLP | 0.01% | Reduce -0.3% | 855,334 | $31.1M |
| Vivo Capital, LLC | 2.00% | Reduce -27.9% | 853,495 | $31.0M |
| EcoR1 Capital, LLC | 1.31% | New | 789,500 | $28.7M |
| ArrowMark Colorado Holdings LLC | 0.60% | Reduce -8.9% | 751,161 | $27.3M |
| Pivotal bioVenture Partners Investment Advisor LLC | 8.31% | Reduce -24.0% | 591,991 | $21.5M |
| Geode Capital Management, LLC | 0.00% | Add +25.2% | 588,393 | $21.4M |
| Rock Springs Capital Management LP | 0.94% | Reduce -13.5% | 502,077 | $18.2M |
| State Street Corp. | 0.00% | Add +16.1% | 438,294 | $15.9M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -1.4% | 369,248 | $13.4M |
| NEXTBio Capital Management LP | 6.86% | — | 321,983 | $11.7M |
| Point72 Asset Management | 0.02% | New | 368,400 | $9.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +19.5% | 213,193 | $7.7M |
| Balyasny Asset Management L.P. | 0.01% | New | 193,153 | $7.0M |
| Invesco Ltd. | 0.00% | Add +28.9% | 187,968 | $6.8M |
| Skandinaviska Enskilda Banken AB (publ) | 0.02% | New | 163,860 | $5.9M |
| Northern Trust Corp. | 0.00% | Add +16.6% | 155,366 | $5.6M |
| Voloridge Investment Management, LLC | 0.02% | New | 133,439 | $4.8M |
| Goldman Sachs Group Inc. | 0.00% | New | 130,698 | $4.7M |
| Morgan Stanley | 0.00% | Add +44.6% | 128,335 | $4.7M |
| Eversept Partners, LP | 0.25% | Reduce -23.8% | 121,016 | $4.4M |
| Superstring Capital Management LP | 1.62% | Reduce -13.8% | 83,353 | $3.0M |
| AQR Capital Management | 0.00% | Add +218.2% | 78,220 | $2.8M |
| UBS Group AG | 0.00% | Add +95.8% | 69,495 | $2.5M |
| Bank of New York Mellon Corp | 0.00% | Add +24.3% | 51,802 | $1.9M |
| Schroder Investment Management Group | 0.00% | Reduce -55.0% | 50,636 | $1.9M |
| Nuveen, LLC | 0.00% | Add +147.8% | 50,850 | $1.8M |
| Millennium Management | 0.00% | Reduce -31.6% | 49,160 | $1.8M |
| Bank of America Corp. | 0.00% | Add +218.4% | 47,160 | $1.7M |
| Alps Advisors Inc. | 0.01% | Add +119.9% | 44,077 | $1.6M |
| Barclays PLC | 0.00% | Add +50.3% | 34,377 | $1.2M |
| Swiss National Bank | 0.00% | New | 31,600 | $1.1M |
| Citadel Advisors | 0.00% | New | 24,459 | $888K |
| Rhumbline Advisers | 0.00% | Add +3.5% | 21,946 | $797K |
| JPMorgan Chase & Co. | 0.00% | Add +231.8% | 21,726 | $789K |
| Wells Fargo & Company | 0.00% | Add +69.8% | 21,151 | $768K |
| Alliancebernstein L.P. | 0.00% | No change | 18,350 | $666K |
| California State Teachers Retirement System | 0.00% | Add +1271.3% | 15,701 | $570K |
| Squarepoint Ops LLC | 0.00% | New | 15,541 | $564K |
| Two Sigma Investments, LP | 0.00% | Reduce -25.9% | 15,100 | $548K |
| Voya Investment Management LLC | 0.00% | New | 14,725 | $535K |
| Susquehanna International Group, LLP | 0.00% | New | 13,678 | $497K |
| China Universal Asset Management Co., Ltd. | 0.04% | New | 13,314 | $483K |
| Legal & General Group Plc | 0.00% | Add +862.1% | 13,027 | $473K |
| Deutsche Bank AG | 0.00% | Add +4.5% | 12,781 | $464K |
| Creative Planning | 0.00% | Add +3.3% | 12,273 | $446K |
| XTX Topco Ltd | 0.01% | New | 12,183 | $442K |
| Los Angeles Capital Management LLC | 0.00% | New | 14,447 | $432K |
| State of Wisconsin Investment Board | 0.00% | New | 10,221 | $371K |
| Voleon Capital Management LP | 0.01% | New | 10,187 | $370K |
| MetLife Investment Management, LLC | 0.00% | No change | 10,100 | $367K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 9,127 | $331K |
| Gsa Capital Partners LLP | 0.03% | New | 8,956 | $325K |
| Intech Investment Management LLC | 0.00% | New | 8,863 | $322K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +17.7% | 8,780 | $319K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 8,400 | $305K |
| Janus Henderson Group PLC | 0.00% | New | 7,900 | $287K |
| Mariner, LLC | 0.00% | New | 7,676 | $279K |
| VARCOV Co. | 0.11% | — | 7,335 | $266K |
| BNP Paribas Financial Markets | 0.00% | Add +126.9% | 7,138 | $259K |
| Marshall Wace, LLP | 0.00% | New | 7,100 | $258K |
| Virtus Investment Advisers, LLC | 0.06% | New | 6,554 | $238K |
| Manufacturers Life Insurance Company, The | 0.00% | New | 6,256 | $227K |
| New York State Common Retirement Fund | 0.00% | No change | 6,200 | $225K |
| Brevan Howard Capital Management LP | 0.00% | New | 6,173 | $224K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -0.3% | 5,824 | $211K |
| ProShare Advisors LLC | 0.00% | New | 5,820 | $211K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 4,499 | $163K |
| KLP Kapitalforvaltning As | 0.00% | New | 3,400 | $123K |
| STRS Ohio | 0.00% | No change | 2,800 | $102K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | New | 2,608 | $95K |
| Citigroup Inc. | 0.00% | Add +1150.5% | 2,351 | $85K |
| Cwm, LLC | 0.00% | Add +48.3% | 2,178 | $79K |
| Simplex Trading, LLC | 0.00% | New | 1,974 | $72K |
| Ameritas Investment Partners, Inc. | 0.00% | Reduce -14.9% | 1,368 | $50K |
| Russell Investments Group, Ltd. | 0.00% | No change | 1,345 | $49K |
| Sterling Capital Management LLC | 0.00% | Reduce -3.0% | 1,087 | $39K |
| GF Fund Management Co. LTD. | 0.00% | New | 1,054 | $38K |
| US Bancorp \de | 0.00% | Reduce -7.2% | 884 | $32K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -42.7% | 795 | $29K |
| Amalgamated Bank | 0.00% | Add +13.2% | 593 | $22K |
| Royal Bank of Canada | 0.00% | Reduce -95.4% | 544 | $20K |
| Signaturefd, LLC | 0.00% | Add +17.2% | 389 | $14K |
| GAMMA Investing LLC | 0.00% | Reduce -2.2% | 179 | $6K |
| Daiwa Securities Group Inc. | 0.00% | New | 179 | $6K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 115 | $4K |
| Torren Management, LLC | 0.00% | — | 95 | $3K |
| J.Safra Asset Management Corp | 0.00% | New | 92 | $3K |
| Farther Finance Advisors, LLC | 0.00% | Add +258.3% | 86 | $3K |
"% of holder's portfolio" is ZBIO's weight in each manager's 13F, not the share of Zenas Biopharma Inc. the manager owns.