Zenas BioPharma Ownership | Who Owns Zenas BioPharma?
Zenas BioPharma Ownership Summary
Zenas BioPharma is owned by 7.91% institutional investors, 26.22% insiders, and 65.87% retail investors. Sr one capital management, lp is the largest institutional shareholder, holding 11.73% of ZBIO shares.
ZBIO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Zenas BioPharma | 7.91% | 26.22% | 65.87% |
| Sector | Healthcare Stocks | 42.53% | 10.81% | 46.67% |
| Industry | Biotech Stocks | 45.24% | 10.75% | 44.01% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Sr one capital management, lp | 4.91M | 11.73% | $109.04M |
| Fmr | 4.82M | 11.51% | $107.01M |
| Enavate sciences gp | 3.76M | 8.98% | $83.50M |
| Nea management company | 2.73M | 6.53% | $60.69M |
| Novo | 2.00M | 4.78% | $44.40M |
| Fairmount funds management | 1.89M | 4.52% | $42.02M |
| Federated hermes | 1.86M | 4.45% | $41.33M |
| Nvp associates | 1.84M | 4.39% | $40.81M |
| Deerfield management company, l.p. (series c) | 1.56M | 3.73% | $34.70M |
| Blackrock funding, inc. /de | 1.23M | 2.93% | $27.28M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Enavate sciences gp | 3.76M | 25.50% | $83.50M |
| Nvp associates | 1.84M | 24.58% | $40.81M |
| Sr one capital management, lp | 4.91M | 15.77% | $109.04M |
| Pivotal bioventure partners investment advisor | 779.04K | 10.00% | $17.29M |
| Fairmount funds management | 1.89M | 3.78% | $42.02M |
| Nea management company | 2.73M | 3.33% | $60.69M |
| Novo | 2.00M | 2.86% | $44.40M |
| Superstring capital management lp | 96.67K | 2.11% | $2.15M |
| Vivo capital | 1.18M | 2.11% | $26.27M |
| Sectoral asset management | 152.03K | 2.08% | $3.37M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 4.82M | 0.01% | 1.50M |
| Vanguard group | 1.16M | 0.00% | 170.55K |
| Invesco | 145.80K | 0.00% | 145.80K |
| Blackrock funding, inc. /de | 1.23M | 0.00% | 133.03K |
| Geode capital management | 470.04K | 0.00% | 96.42K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Perceptive advisors | - | - | -744.03K |
| Arrowmark colorado | 824.67K | 0.34% | -269.67K |
| Novo | 2.00M | 2.86% | -250.00K |
| Catalio capital management, lp | - | - | -215.31K |
| Eversept partners, lp | 158.74K | 0.24% | -166.74K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Invesco | 145.80K | 0.00% | 145.80K | $3.24M |
| Stempoint capital lp | 38.74K | 0.17% | 38.74K | $860.07K |
| Creative planning | 11.88K | 0.00% | 11.88K | $263.78K |
| American century companies | 10.98K | 0.00% | 10.98K | $243.78K |
| Russell investments group | 1.34K | - | 1.34K | $29.86K |
Sold Out
| Holder | Change |
|---|---|
| Mrp capital investments | -35.00 |
| Corebridge financial | -7.53K |
| Stoneridge investment partners | -10.96K |
| Sei investments | -12.14K |
| Alpine global management | -12.91K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 24 | -66.67% | 3,311,937 | -90.27% | 7 | 0.12% | 10 | -78.72% | 4 | -63.64% |
| Jun 30, 2025 | 72 | 12.50% | 34,055,191 | 22.15% | 81 | 1.83% | 47 | 67.86% | 11 | -45.00% |
| Mar 31, 2025 | 66 | 4.76% | 32,487,083 | 3.18% | 77 | 13.66% | 27 | -42.55% | 20 | 233.33% |
| Dec 31, 2024 | 64 | 48.84% | 31,696,956 | 28.35% | 24 | 0.69% | 48 | 11.63% | 6 | - |
| Sep 30, 2024 | 43 | - | 24,696,152 | - | 59 | - | 43 | - | - | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 09, 2025 | Nunn Jason Raleigh | - | Buy | $1.20M |
| Oct 09, 2025 | SR ONE CAPITAL MANAGEMENT, LLC | - | Buy | $1.20M |
| Oct 09, 2025 | SR ONE CAPITAL MANAGEMENT, LLC | - | Buy | $1.20M |
| Oct 09, 2025 | ENRIGHT PATRICK G | - | Buy | $249.99K |
| Oct 09, 2025 | ENRIGHT PATRICK G | - | Buy | $2.00M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | 3 | - |
| 2025 Q2 | - | - |
| 2025 Q1 | 2 | - |
| 2024 Q4 | 4 | - |
ZBIO Ownership FAQ
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