Zenas BiopharmaZBIO
13F holders, Q1 2025 (March 31)67holders +2
12new positions
10sold out
$7.90avg. 13F price*
At the end of Q1 2025, 67 institutions reported holding Zenas Biopharma Inc. (ZBIO) in their 13F filings, up 2 from Q4 2024. 12 opened new positions and 10 sold out. The largest holders were SR One Capital Management, LP ($38.8M), Enavate Sciences Gp, LLC ($29.7M) and FMR LLC ($22.5M).
- Company
- Zenas Biopharma Inc.
- CUSIP
- 98937L105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 12 | $738K |
| Exits | 10 | $9.4M |
All 13F filers, Q4 2024 → Q1 2025: 2,715,211 shares bought and 1,936,801 shares sold, net +778,410 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 67 holders
| SR One Capital Management, LP | 9.97% | No change | 4,911,539 | $38.8M |
| Enavate Sciences Gp, LLC | 22.39% | No change | 3,761,359 | $29.7M |
| FMR LLC | 0.00% | Add +60.1% | 2,852,371 | $22.5M |
| NEA Management Company, LLC | 1.59% | No change | 2,613,948 | $20.7M |
| Novo Holdings A/S | 1.33% | Add +38.4% | 2,214,967 | $17.5M |
| Fairmount Funds Management LLC | 2.32% | No change | 1,892,806 | $15.0M |
| NVP Associates, LLC | 12.95% | No change | 1,838,482 | $14.5M |
| Deerfield Management Company, L.P. | 0.28% | No change | 1,562,942 | $12.3M |
| Vivo Capital, LLC | 1.24% | No change | 1,183,260 | $9.3M |
| Federated Hermes, Inc. | 0.02% | No change | 1,158,000 | $9.1M |
| ArrowMark Colorado Holdings LLC | 0.14% | Add +74.8% | 1,097,369 | $8.7M |
| BlackRock, Inc. | 0.00% | Add +0.8% | 1,014,110 | $8.0M |
| Vanguard Group Inc. | 0.00% | Reduce -0.3% | 975,906 | $7.7M |
| Rock Springs Capital Management LP | 0.40% | No change | 878,667 | $6.9M |
| Wellington Management Group LLP | 0.00% | Reduce -23.1% | 873,623 | $6.9M |
| Pivotal bioVenture Partners Investment Advisor LLC | 4.71% | No change | 736,645 | $5.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +1.3% | 517,606 | $4.1M |
| Eversept Partners, LP | 0.40% | Add +158.9% | 445,588 | $3.5M |
| Geode Capital Management, LLC | 0.00% | Add +2.4% | 357,156 | $2.8M |
| Catalio Capital Management, LP | 0.58% | Add +57.7% | 295,148 | $2.3M |
| State Street Corp. | 0.00% | Add +25.9% | 266,200 | $2.1M |
| Schroder Investment Management Group | 0.00% | Reduce -4.6% | 164,035 | $1.3M |
| Northern Trust Corp. | 0.00% | Reduce -3.2% | 120,238 | $950K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.1% | 116,140 | $918K |
| Superstring Capital Management LP | 1.05% | No change | 111,605 | $882K |
| Morgan Stanley | 0.00% | Reduce -78.3% | 77,910 | $615K |
| Jefferies Financial Group Inc. | 0.01% | New | 44,067 | $348K |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 35,188 | $278K |
| Gsa Capital Partners LLP | 0.02% | Reduce -43.3% | 31,757 | $251K |
| Nuveen, LLC | 0.00% | — | 31,626 | $250K |
| Alps Advisors Inc. | 0.00% | Reduce -16.7% | 28,132 | $222K |
| BNP Paribas Financial Markets | 0.00% | Add +38.7% | 25,298 | $200K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -43.2% | 23,957 | $189K |
| Deutsche Bank AG | 0.00% | No change | 22,990 | $182K |
| UBS Group AG | 0.00% | Reduce -84.2% | 20,765 | $164K |
| Susquehanna International Group, LLP | 0.00% | New | 18,637 | $147K |
| Birchview Capital, LP | 0.11% | No change | 16,500 | $130K |
| Barclays PLC | 0.00% | Reduce -32.5% | 16,160 | $128K |
| Sei Investments Co. | 0.00% | New | 11,956 | $94K |
| Intech Investment Management LLC | 0.00% | New | 11,599 | $92K |
| Rhumbline Advisers | 0.00% | Reduce -70.4% | 11,514 | $91K |
| Stoneridge Investment Partners LLC | 0.07% | No change | 10,955 | $87K |
| Citigroup Inc. | 0.00% | Reduce -10.7% | 10,810 | $85K |
| Bank of America Corp. | 0.00% | Reduce -51.0% | 10,579 | $84K |
| MetLife Investment Management, LLC | 0.00% | Reduce -1.4% | 10,087 | $80K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.5% | 8,986 | $71K |
| Wells Fargo & Company | 0.00% | Add +2.3% | 8,163 | $64K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.4% | 7,529 | $59K |
| JPMorgan Chase & Co. | 0.00% | Reduce -75.7% | 7,267 | $57K |
| PNC Financial Services Group, Inc. | 0.00% | Add +1.3% | 6,500 | $51K |
| New York State Common Retirement Fund | 0.00% | New | 6,200 | $49K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 4,499 | $36K |
| STRS Ohio | 0.00% | No change | 2,800 | $22K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,608 | $13K |
| Legal & General Group Plc | 0.00% | No change | 1,519 | $12K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +26.3% | 1,411 | $11K |
| California State Teachers Retirement System | 0.00% | No change | 1,144 | $9K |
| Amalgamated Bank | 0.00% | No change | 524 | $4K |
| Royal Bank of Canada | 0.00% | Reduce -60.2% | 454 | $4K |
| Cwm, LLC | 0.00% | New | 476 | $4K |
| US Bancorp \de | 0.00% | New | 273 | $2K |
| Sterling Capital Management LLC | 0.00% | Reduce -42.0% | 131 | $1K |
| Signaturefd, LLC | 0.00% | New | 128 | $1K |
| GAMMA Investing LLC | 0.00% | New | 41 | $324 |
| Nisa Investment Advisors, LLC | 0.00% | New | 28 | $221 |
| True Wealth Design, LLC | 0.00% | New | 3 | $24 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 2 | $16 |
"% of holder's portfolio" is ZBIO's weight in each manager's 13F, not the share of Zenas Biopharma Inc. the manager owns.