Zenas BioPharma, Inc.
ZBIO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001953926
No open-market purchases or sales by Zenas BioPharma, Inc. insiders were filed in the last 90 days; 144 institutions reported holding it in 13F filings for Q2 2026, worth $1.55B in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Zenas BioPharma, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 67
- +3 vs. Q4 2024
- Shares held
- 32.5M
- +810.0K (+2.6%) vs. Q4 2024
- Total value
- $256.7M
- −$2.75M (−1.1%) vs. Q4 2024
- New holders
- 13
- 14 more added
- Sold out
- 10
- 20 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ZBIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 144 | $1.55B |
| Q1 2026 | 140 | $1.14B |
| Q4 2025 | 119 | $1.55B |
| Q3 2025 | 80 | $774.5M |
| Q2 2025 | 73 | $330.0M |
| Q1 2025 | 67 | $256.7M |
| Q4 2024 | 65 | $259.6M |
| Q3 2024 | 44 | $418.5M |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Zenas BioPharma, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| EverSource Wealth Advisors, LLC | 2 | $16 | 0.00% | +2 | New |
| True Wealth Design, LLC | 3 | $24 | 0.00% | +3 | New |
| Nisa Investment Advisors, LLC | 28 | $221 | 0.00% | +28 | New |
| GAMMA Investing LLC | 41 | $324 | 0.00% | +41 | New |
| Signaturefd, LLC | 128 | $1.01K | 0.00% | +128 | New |
| Sterling Capital Management LLC | 131 | $1.03K | 0.00% | −95−42.0% | Reduced |
| US Bancorp | 273 | $2.16K | 0.00% | +273 | New |
| Royal Bank of Canada | 454 | $4.00K | 0.00% | −686−60.2% | Reduced |
| Amalgamated Bank | 524 | $4.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 476 | $4.00K | 0.00% | +476 | New |
| California State Teachers Retirement System | 1,144 | $9.04K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,411 | $11.1K | 0.00% | +294+26.3% | Added |
| Legal & General Group Plc | 1,519 | $12.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,608 | $12.7K | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 2,800 | $22.1K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 4,499 | $35.5K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 6,200 | $49.0K | 0.00% | +6,200 | New |
| The PNC Financial Services Group, Inc. | 6,500 | $51.4K | 0.00% | +83+1.3% | Added |
| JPMorgan Chase & Co | 7,267 | $57.4K | 0.00% | −22,572−75.6% | Reduced |
| Corebridge Financial, Inc. | 7,529 | $59.5K | 0.00% | −111−1.5% | Reduced |
| Wells Fargo & Company | 8,163 | $64.5K | 0.00% | +181+2.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 8,986 | $71.0K | 0.00% | +390+4.5% | Added |
| MetLife Investment Management | 10,087 | $79.7K | 0.00% | −138−1.3% | Reduced |
| Bank of America Corp | 10,579 | $83.6K | 0.00% | −10,996−51.0% | Reduced |
| Citigroup Inc | 10,810 | $85.4K | 0.00% | −1,294−10.7% | Reduced |
| Stoneridge Investment Partners LLC | 10,955 | $87.0K | 0.07% | 00.0% | Unchanged |
| Rhumbline Advisers | 11,514 | $91.0K | 0.00% | −27,428−70.4% | Reduced |
| Intech Investment Management LLC | 11,599 | $91.6K | 0.00% | +11,599 | New |
| SEI Investments Co | 11,956 | $94.5K | 0.00% | +11,956 | New |
| Barclays PLC | 16,160 | $127.7K | 0.00% | −7,779−32.5% | Reduced |
| Birchview Capital, LP | 16,500 | $130.3K | 0.11% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 18,637 | $147.2K | 0.00% | +18,637 | New |
| UBS Group AG | 20,765 | $164.0K | 0.00% | −110,900−84.2% | Reduced |
| Deutsche Bank AG | 22,990 | $181.6K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 23,957 | $189.3K | 0.00% | −18,217−43.2% | Reduced |
| BNP Paribas Arbitrage, SA | 25,298 | $199.9K | 0.00% | +7,053+38.7% | Added |
| Alps Advisors Inc | 28,132 | $222.2K | 0.00% | −5,658−16.7% | Reduced |
| Nuveen, LLC | 31,626 | $249.8K | 0.00% | +31,626 | New |
| Gsa Capital Partners LLP | 31,757 | $251.0K | 0.02% | −24,282−43.3% | Reduced |
| Bank of New York Mellon Corp | 35,188 | $278.0K | 0.00% | −756−2.1% | Reduced |
| Jefferies Financial Group Inc. | 44,067 | $348.1K | 0.01% | +44,067 | New |
| Morgan Stanley | 77,910 | $615.5K | 0.00% | −280,302−78.3% | Reduced |
| Superstring Capital Management LP | 111,605 | $881.7K | 1.05% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 116,140 | $917.5K | 0.00% | −2,520−2.1% | Reduced |
| Northern Trust Corp | 120,238 | $949.9K | 0.00% | −4,008−3.2% | Reduced |
| Schroder Investment Management Group | 164,035 | $1.34M | 0.00% | −7,905−4.6% | Reduced |
| State Street Corp | 266,200 | $2.10M | 0.00% | +54,694+25.9% | Added |
| Catalio Capital Management, LP | 295,148 | $2.33M | 0.58% | +107,964+57.7% | Added |
| Geode Capital Management, LLC | 357,156 | $2.82M | 0.00% | +8,396+2.4% | Added |
| Eversept Partners, LP | 445,588 | $3.52M | 0.40% | +273,485+158.9% | Added |
| Price T Rowe Associates Inc | 517,606 | $4.09M | 0.00% | +6,386+1.2% | Added |
| Pivotal bioVenture Partners Investment Advisor LLC | 736,645 | $5.82M | 4.71% | 00.0% | Unchanged |
| Wellington Management Group LLP | 873,623 | $6.90M | 0.00% | −261,666−23.0% | Reduced |
| Rock Springs Capital Management LP | 878,667 | $6.94M | 0.40% | 00.0% | Unchanged |
| Vanguard Group Inc | 975,906 | $7.71M | 0.00% | −3,417−0.3% | Reduced |
| BlackRock, Inc. | 1,014,110 | $8.01M | 0.00% | +7,552+0.8% | Added |
| ArrowMark Colorado Holdings LLC | 1,097,369 | $8.67M | 0.14% | +469,700+74.8% | Added |
| Federated Hermes, Inc. | 1,158,000 | $9.15M | 0.02% | 00.0% | Unchanged |
| Vivo Capital, LLC | 1,183,260 | $9.35M | 1.24% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,562,942 | $12.3M | 0.24% | 00.0% | Unchanged |
| NVP Associates, LLC | 1,838,482 | $14.5M | 12.95% | 00.0% | Unchanged |
| Fairmount Funds Management LLC | 1,892,806 | $15.0M | 2.32% | 00.0% | Unchanged |
| Novo Holdings A/S | 2,214,967 | $17.5M | 1.33% | +614,967+38.4% | Added |
| NEA Management Company, LLC | 2,613,948 | $20.7M | 1.59% | 00.0% | Unchanged |
| FMR LLC | 2,852,371 | $22.5M | 0.00% | +1,070,656+60.1% | Added |
| Enavate Sciences GP, LLC | 3,761,359 | $29.7M | 22.39% | 00.0% | Unchanged |
| Sr One Capital Management, LP | 4,911,539 | $38.8M | 9.97% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −744,035−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −134,896−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −82,624−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −66,202−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −62,622−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −38,400−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −17,045−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −210−100.0% | Sold out |
| MRP Capital Investments, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |