Zenas BioPharma Ownership | Who Owns Zenas BioPharma?
Zenas BioPharma Ownership Summary
Zenas BioPharma is owned by 3.77% institutional investors, 26.22% insiders, and 70.01% retail investors. Sr one capital management, lp is the largest institutional shareholder, holding 11.95% of ZBIO shares.
ZBIO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Zenas BioPharma | 3.77% | 26.22% | 70.01% |
| Sector | Healthcare Stocks | 232.20% | 10.74% | -142.94% |
| Industry | Biotech Stocks | 382.11% | 10.55% | -292.66% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Sr one capital management, lp | 5.04M | 11.95% | $182.92M |
| 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 |
| Federated hermes | 2.72M | 6.44% | $98.60M |
| Novo | 2.00M | 4.78% | $44.40M |
| Fairmount funds management | 1.89M | 4.52% | $42.02M |
| Nvp associates | 1.84M | 4.39% | $40.81M |
| Blackrock funding, inc. /de | 1.77M | 4.19% | $64.18M |
| Deerfield management company, l.p. (series c) | 1.56M | 3.73% | $34.70M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Sr one capital management, lp | 5.04M | 25.90% | $182.92M |
| Enavate sciences gp | 3.76M | 25.50% | $83.50M |
| Nvp associates | 1.84M | 24.58% | $40.81M |
| 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 |
| Rock springs capital management lp | 580.68K | 0.75% | $12.89M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 4.82M | 0.01% | 1.50M |
| Federated hermes | 2.72M | 0.16% | 853.74K |
| Blackrock funding, inc. /de | 1.77M | 0.00% | 538.88K |
| Vanguard group | 1.45M | 0.00% | 290.31K |
| Skandinaviska enskilda banken ab (publ) | 163.86K | 0.02% | 163.86K |
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 |
|---|---|---|---|---|
| Skandinaviska enskilda banken ab (publ) | 163.86K | 0.02% | 163.86K | $5.95M |
| Invesco | 145.80K | 0.00% | 145.80K | $3.24M |
| Goldman sachs group | 130.70K | 0.00% | 130.70K | $4.75M |
| Stempoint capital lp | 38.74K | 0.17% | 38.74K | $860.07K |
| Swiss national bank | 31.60K | 0.00% | 31.60K | $1.15M |
Sold Out
| Holder | Change |
|---|---|
| Sbi securities | -1.00 |
| Mrp capital investments | -35.00 |
| Quarry lp | -1.13K |
| Corebridge financial | -7.53K |
| Stoneridge investment partners | -10.96K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 22 | -72.50% | 1,590,706 | -95.43% | 3 | 0.05% | 16 | -56.76% | 2 | -90.91% |
| 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 | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Feb 11, 2026 | Lu Hongbo | - | Buy | $584.66K |
| Feb 12, 2026 | Allen Patricia L | - | Buy | $132.50K |
| Feb 13, 2026 | Allen Patricia L | - | Buy | $109.66K |
| Feb 12, 2026 | Allen Patricia L | - | Buy | $138.74K |
| Feb 12, 2026 | Allen Patricia L | - | Buy | $118.85K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | 9 | - |
| 2025 Q4 | 8 | - |
| 2025 Q2 | - | - |
| 2025 Q1 | 2 | - |
| 2024 Q4 | 4 | - |
ZBIO Ownership FAQ
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