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 2026
Institutional positions in Zenas BioPharma, Inc. as of Jun 30, 2026. 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
- 144
- +6 vs. Q1 2026
- Shares held
- 61.3M
- +3.48M (+6.0%) vs. Q1 2026
- Total value
- $1.55B
- +$404.0M (+35.3%) vs. Q1 2026
- New holders
- 28
- 62 more added
- Sold out
- 22
- 39 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Zenas BioPharma, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Freestone Grove Partners LP | 1 | $25 | 0.00% | +1 | New |
| Hughes Financial Services, LLC | 1 | $25 | 0.00% | +1 | New |
| Allworth Financial LP | 1 | $26 | 0.00% | −25−96.2% | Reduced |
| Caitong International Asset Management Co., Ltd | 2 | $51 | 0.00% | −58−96.7% | Reduced |
| Essential Partners LLC | 2 | $51 | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 12 | $305 | 0.00% | +12 | New |
| Rothschild Investment LLC | 20 | $508 | 0.00% | −1−4.8% | Reduced |
| Cornerstone Financial Management LLC | 26 | $660 | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 29 | $736 | 0.00% | +29 | New |
| Covestor Ltd | 22 | $1.00K | 0.00% | +16+266.7% | Added |
| Ameritas Advisory Services, LLC | 42 | $1.07K | 0.00% | +36+600.0% | Added |
| UMA Financial Services, Inc. | 67 | $1.70K | 0.00% | −25−27.2% | Reduced |
| Torren Management, LLC | 95 | $2.41K | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 95 | $2.41K | 0.00% | +81+578.6% | Added |
| Sterling Capital Management LLC | 100 | $2.54K | 0.00% | −679−87.2% | Reduced |
| SRS Capital Advisors, Inc. | 104 | $2.64K | 0.00% | +104 | New |
| EverSource Wealth Advisors, LLC | 162 | $4.11K | 0.00% | +64+65.3% | Added |
| GAMMA Investing LLC | 195 | $4.95K | 0.00% | −50−20.4% | Reduced |
| J.Safra Asset Management Corp | 224 | $5.68K | 0.00% | −46−17.0% | Reduced |
| Advisor Group Holdings, Inc. | 295 | $7.49K | 0.00% | −382−56.4% | Reduced |
| US Bancorp | 304 | $7.72K | 0.00% | −690−69.4% | Reduced |
| Group One Trading, L.P. | 345 | $8.76K | 0.00% | +45+15.0% | Added |
| Harbour Investments, Inc. | 370 | $9.39K | 0.00% | −1,000−73.0% | Reduced |
| Global Retirement Partners, LLC | 420 | $10.7K | 0.00% | +420 | New |
| Larson Financial Group LLC | 454 | $11.5K | 0.00% | +161+54.9% | Added |
| Silver Grove Financial Group, Inc. | 538 | $13.7K | 0.01% | +538 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 539 | $13.7K | 0.00% | +539 | New |
| Pacer Advisors, Inc. | 626 | $16.0K | 0.00% | +626 | New |
| Nisa Investment Advisors, LLC | 651 | $16.5K | 0.00% | −1,764−73.0% | Reduced |
| Royal Bank of Canada | 847 | $21.0K | 0.00% | +847 | New |
| Signaturefd, LLC | 1,134 | $28.8K | 0.00% | +764+206.5% | Added |
| GF Fund Management Co. Ltd. | 1,138 | $28.9K | 0.00% | −67−5.6% | Reduced |
| Tower Research Capital LLC (TRC) | 1,286 | $32.6K | 0.00% | −5,949−82.2% | Reduced |
| Quantbot Technologies LP | 1,928 | $48.9K | 0.00% | +1,672+653.1% | Added |
| Tounjian Advisory Partners, LLC | 2,500 | $63.5K | 0.03% | +2,500 | New |
| Ameritas Investment Partners, Inc. | 2,586 | $65.6K | 0.00% | +662+34.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 2,824 | $71.7K | 0.00% | +24+0.9% | Added |
| Vanguard Investments Australia, Ltd. | 4,199 | $106.6K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 4,739 | $120.3K | 0.00% | −28−0.6% | Reduced |
| KLP Kapitalforvaltning AS | 6,100 | $154.8K | 0.00% | +2,700+79.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,563 | $191.9K | 0.00% | +786+11.6% | Added |
| Jupiter Topco LLC | 7,900 | $200.6K | 0.00% | +7,900 | New |
| Manufacturers Life Insurance Company, The | 8,032 | $203.9K | 0.00% | +8,032 | New |
| Police & Firemen's Retirement System of New Jersey | 8,418 | $213.6K | 0.00% | +2,055+32.3% | Added |
| SG Americas Securities, LLC | 8,442 | $214.0K | 0.00% | +8,442 | New |
| State of New Jersey Common Pension Fund D | 8,571 | $217.5K | 0.00% | +8,571 | New |
| Quantinno Capital Management LP | 8,581 | $217.8K | 0.00% | −12,545−59.4% | Reduced |
| HRT Financial LP | 8,879 | $225.0K | 0.00% | −16,870−65.5% | Reduced |
| Dimensional Fund Advisors LP | 8,874 | $225.2K | 0.00% | +8,874 | New |
| Scientech Research LLC | 9,028 | $229.1K | 0.19% | −3,924−30.3% | Reduced |
| Massachusetts Financial Services Co | 9,053 | $229.8K | 0.00% | +9,053 | New |
| New York State Common Retirement Fund | 10,300 | $261.4K | 0.00% | +4,100+66.1% | Added |
| VARCOV Co. | 10,505 | $266.6K | 0.10% | +10,505 | New |
| Creative Planning | 11,723 | $297.5K | 0.00% | −935−7.4% | Reduced |
| Russell Investments Group, Ltd. | 12,740 | $323.3K | 0.00% | +10,019+368.2% | Added |
| Engineers Gate Manager LP | 12,980 | $329.4K | 0.00% | +12,980 | New |
| Brevan Howard Capital Management LP | 14,674 | $372.4K | 0.01% | +14,674 | New |
| Nordea Investment Management AB | 15,050 | $382.9K | 0.00% | +15,050 | New |
| Vanguard Global Advisers, LLC | 15,332 | $389.1K | 0.00% | −5,508−26.4% | Reduced |
| Point72 Asset Management, L.P. | 16,136 | $409.5K | 0.00% | +16,136 | New |
| Virtus Investment Advisers, Inc. | 16,525 | $419.4K | 0.10% | +9,808+146.0% | Added |
| MetLife Investment Management | 17,041 | $432.5K | 0.00% | +4,132+32.0% | Added |
| Y-Intercept (Hong Kong) Ltd | 17,332 | $439.9K | 0.01% | +17,332 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 17,423 | $442.9K | 0.00% | +3,037+21.1% | Added |
| Allstate Corp | 18,241 | $463.0K | 0.00% | +18+0.1% | Added |
| Profund Advisors LLC | 18,838 | $478.1K | 0.01% | −2,578−12.0% | Reduced |
| China Universal Asset Management Co., Ltd. | 18,848 | $478.4K | 0.03% | +5,322+39.3% | Added |
| Invesco Ltd. | 18,954 | $481.1K | 0.00% | −94,525−83.3% | Reduced |
| Legal & General Group Plc | 20,023 | $508.2K | 0.00% | +9,591+91.9% | Added |
| Vanguard Asset Management, Ltd | 20,623 | $523.4K | 0.00% | +9,981+93.8% | Added |
| Wells Fargo & Company | 25,995 | $659.8K | 0.00% | +17,110+192.6% | Added |
| JPMorgan Chase & Co | 24,445 | $660.5K | 0.00% | −664−2.6% | Reduced |
| State of Wisconsin Investment Board | 26,922 | $683.3K | 0.00% | +6,108+29.3% | Added |
| DCF Advisers, LLC | 28,184 | $715.3K | 0.19% | +28,184 | New |
| Deutsche Bank AG | 28,881 | $733.0K | 0.00% | +9,615+49.9% | Added |
| California State Teachers Retirement System | 29,471 | $748.0K | 0.00% | +13,652+86.3% | Added |
| AQR Capital Management LLC | 31,100 | $789.3K | 0.00% | −19,871−39.0% | Reduced |
| Boothbay Fund Management, LLC | 33,280 | $844.6K | 0.02% | +33,280 | New |
| Rhumbline Advisers | 34,245 | $869.1K | 0.00% | +7,432+27.7% | Added |
| Atom Investors LP | 37,149 | $942.8K | 0.08% | −69,867−65.3% | Reduced |
| Rafferty Asset Management, LLC | 37,509 | $952.0K | 0.00% | −10,660−22.1% | Reduced |
| UBS Asset Management Americas Inc | 37,790 | $959.1K | 0.00% | +22,267+143.4% | Added |
| Burkehill Global Management, LP | 40,000 | $1.02M | 0.04% | 00.0% | Unchanged |
| XTX Topco Ltd | 40,034 | $1.02M | 0.01% | +20,723+107.3% | Added |
| Los Angeles Capital Management LLC | 48,465 | $1.23M | 0.00% | +48,465 | New |
| Citigroup Inc | 49,521 | $1.26M | 0.00% | +39,633+400.8% | Added |
| Jump Financial, LLC | 51,022 | $1.29M | 0.01% | −8,979−15.0% | Reduced |
| Exome Asset Management LLC | 52,443 | $1.33M | 0.82% | −28,287−35.0% | Reduced |
| Swiss National Bank | 53,200 | $1.35M | 0.00% | +21,600+68.4% | Added |
| Alps Advisors Inc | 63,675 | $1.62M | 0.01% | +19,981+45.7% | Added |
| Nuveen, LLC | 66,638 | $1.69M | 0.00% | −1,132−1.7% | Reduced |
| CSM Advisors, LLC | 67,622 | $1.72M | 0.04% | +67,622 | New |
| J. Goldman & Co LP | 68,232 | $1.73M | 0.06% | +31,435+85.4% | Added |
| Bank of New York Mellon Corp | 70,477 | $1.79M | 0.00% | +9,613+15.8% | Added |
| Verition Fund Management LLC | 72,988 | $1.85M | 0.01% | +72,988 | New |
| Birchview Capital, LP | 93,601 | $2.38M | 1.11% | +23,601+33.7% | Added |
| Seven Grand Managers, LLC | 100,000 | $2.54M | 0.10% | 00.0% | Unchanged |
| Barclays PLC | 115,965 | $2.94M | 0.00% | +86,355+291.6% | Added |
| Squarepoint Ops LLC | 125,185 | $3.18M | 0.01% | +82,311+192.0% | Added |
| Morgan Stanley | 134,979 | $3.43M | 0.00% | +41,583+44.5% | Added |