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, Q2 2025
Institutional positions in Zenas BioPharma, Inc. as of Jun 30, 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
- 73
- +6 vs. Q1 2025
- Shares held
- 34.1M
- +1.57M (+4.8%) vs. Q1 2025
- Total value
- $330.0M
- +$73.3M (+28.5%) vs. Q1 2025
- New holders
- 11
- 34 more added
- Sold out
- 5
- 12 more reduced
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Zenas BioPharma, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Essential Partners LLC | 2 | $19 | 0.00% | +2 | New |
| True Wealth Design, LLC | 3 | $30 | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 23 | $223 | 0.00% | +23 | New |
| EverSource Wealth Advisors, LLC | 58 | $562 | 0.00% | +56+2,800.0% | Added |
| UMA Financial Services, Inc. | 67 | $650 | 0.00% | +67 | New |
| GAMMA Investing LLC | 79 | $766 | 0.00% | +38+92.7% | Added |
| Nisa Investment Advisors, LLC | 115 | $1.11K | 0.00% | +87+310.7% | Added |
| Deutsche Bank AG | 280 | $2.71K | 0.00% | −22,710−98.8% | Reduced |
| Signaturefd, LLC | 295 | $2.86K | 0.00% | +167+130.5% | Added |
| Sterling Capital Management LLC | 439 | $4.25K | 0.00% | +308+235.1% | Added |
| Amalgamated Bank | 524 | $5.00K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 843 | $8.17K | 0.00% | +843 | New |
| US Bancorp | 1,061 | $10.3K | 0.00% | +788+288.6% | Added |
| California State Teachers Retirement System | 1,144 | $11.1K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,334 | $13.0K | 0.00% | +880+193.8% | Added |
| BNP Paribas Arbitrage, SA | 1,430 | $13.9K | 0.00% | −23,868−94.3% | Reduced |
| CWM, LLC | 1,465 | $14.0K | 0.00% | +989+207.8% | Added |
| Legal & General Group Plc | 1,548 | $15.0K | 0.00% | +29+1.9% | Added |
| Ameritas Investment Partners, Inc. | 1,608 | $15.6K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,546 | $24.7K | 0.00% | +1,135+80.4% | Added |
| STRS Ohio | 2,800 | $27.1K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 4,499 | $43.6K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 5,451 | $52.8K | 0.00% | −5,359−49.6% | Reduced |
| New York State Common Retirement Fund | 6,200 | $60.1K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 7,676 | $74.4K | 0.00% | +409+5.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 8,886 | $86.1K | 0.00% | −100−1.1% | Reduced |
| The PNC Financial Services Group, Inc. | 9,179 | $88.9K | 0.00% | +2,679+41.2% | Added |
| MetLife Investment Management | 10,100 | $97.9K | 0.00% | +13+0.1% | Added |
| Wells Fargo & Company | 10,424 | $101.0K | 0.00% | +2,261+27.7% | Added |
| SEI Investments Co | 12,142 | $117.6K | 0.00% | +186+1.6% | Added |
| Alpine Global Management, LLC | 12,907 | $125.1K | 0.03% | +12,907 | New |
| Intech Investment Management LLC | 13,206 | $128.0K | 0.00% | +1,607+13.9% | Added |
| Bank of America Corp | 13,991 | $135.6K | 0.00% | +3,412+32.3% | Added |
| UBS Asset Management Americas Inc | 14,900 | $144.4K | 0.00% | +14,900 | New |
| Alliancebernstein L.P. | 16,360 | $158.5K | 0.00% | +16,360 | New |
| Birchview Capital, LP | 16,500 | $159.9K | 0.16% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 19,541 | $189.4K | 0.00% | +904+4.9% | Added |
| Two Sigma Investments, LP | 19,617 | $190.1K | 0.00% | +19,617 | New |
| Rhumbline Advisers | 19,721 | $191.1K | 0.00% | +8,207+71.3% | Added |
| Alps Advisors Inc | 22,553 | $218.5K | 0.00% | −5,579−19.8% | Reduced |
| UBS Group AG | 24,263 | $235.1K | 0.00% | +3,498+16.8% | Added |
| AQR Capital Management LLC | 24,668 | $239.0K | 0.00% | +24,668 | New |
| Barclays PLC | 27,813 | $269.5K | 0.00% | +11,653+72.1% | Added |
| Nuveen, LLC | 31,626 | $306.5K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 38,433 | $372.4K | 0.00% | +3,245+9.2% | Added |
| Superstring Capital Management LP | 111,605 | $1.08M | 1.35% | 00.0% | Unchanged |
| Northern Trust Corp | 119,515 | $1.16M | 0.00% | −723−0.6% | Reduced |
| Charles Schwab Investment Management Inc | 122,210 | $1.18M | 0.00% | +6,070+5.2% | Added |
| Morgan Stanley | 124,301 | $1.20M | 0.00% | +46,391+59.5% | Added |
| Schroder Investment Management Group | 154,916 | $1.48M | 0.00% | −9,119−5.6% | Reduced |
| Sectoral Asset Management Inc | 210,625 | $2.04M | 1.35% | +210,625 | New |
| Catalio Capital Management, LP | 215,314 | $2.09M | 0.44% | −79,834−27.0% | Reduced |
| Citadel Advisors LLC | 293,785 | $2.85M | 0.00% | +293,785 | New |
| State Street Corp | 310,236 | $3.01M | 0.00% | +44,036+16.5% | Added |
| Eversept Partners, LP | 325,479 | $3.15M | 0.32% | −120,109−27.0% | Reduced |
| Geode Capital Management, LLC | 373,617 | $3.62M | 0.00% | +16,461+4.6% | Added |
| Price T Rowe Associates Inc | 485,202 | $4.70M | 0.00% | −32,404−6.3% | Reduced |
| Rock Springs Capital Management LP | 640,467 | $6.21M | 0.39% | −238,200−27.1% | Reduced |
| Pivotal bioVenture Partners Investment Advisor LLC | 779,045 | $7.55M | 4.68% | +42,400+5.8% | Added |
| Wellington Management Group LLP | 878,918 | $8.52M | 0.00% | +5,295+0.6% | Added |
| Vanguard Group Inc | 992,212 | $9.61M | 0.00% | +16,306+1.7% | Added |
| ArrowMark Colorado Holdings LLC | 1,094,338 | $10.6M | 0.19% | −3,031−0.3% | Reduced |
| BlackRock, Inc. | 1,095,609 | $10.6M | 0.00% | +81,499+8.0% | Added |
| Vivo Capital, LLC | 1,183,260 | $11.5M | 1.17% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,562,942 | $15.1M | 0.27% | 00.0% | Unchanged |
| NVP Associates, LLC | 1,838,482 | $17.8M | 9.67% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 1,861,838 | $18.0M | 0.03% | +703,838+60.8% | Added |
| Fairmount Funds Management LLC | 1,892,806 | $18.3M | 2.38% | 00.0% | Unchanged |
| Novo Holdings A/S | 2,250,000 | $21.8M | 1.54% | +35,033+1.6% | Added |
| NEA Management Company, LLC | 2,733,719 | $26.5M | 1.99% | +119,771+4.6% | Added |
| FMR LLC | 3,323,534 | $32.2M | 0.00% | +471,163+16.5% | Added |
| Enavate Sciences GP, LLC | 3,761,359 | $36.4M | 20.65% | 00.0% | Unchanged |
| Sr One Capital Management, LP | 4,911,539 | $47.6M | 10.32% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −44,067−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −31,757−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −23,957−100.0% | Sold out |
| Stoneridge Investment Partners LLC | 0 | $0 | 0.00% | −10,955−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −7,529−100.0% | Sold out |