Zenas BioPharma Ownership | Who Owns Zenas BioPharma?
Zenas BioPharma Ownership Summary
Zenas BioPharma is owned by 106.34% institutional investors, 17.72% insiders. Fmr is the largest institutional shareholder, holding 17.09% of ZBIO shares. American Funds SMALLCAP World A is the top mutual fund, with 3.86% of its assets in Zenas BioPharma shares.
ZBIO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Zenas BioPharma | 106.34% | 17.72% | -24.06% |
| Sector | Healthcare Stocks | 50.53% | 12.40% | 37.07% |
| Industry | Biotech Stocks | 48.96% | 12.12% | 38.92% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 9.51M | 17.09% | $241.28M |
| Sr one capital management, lp | 5.04M | 9.06% | $127.86M |
| Nea management company | 4.02M | 7.23% | $102.11M |
| Enavate sciences gp | 3.92M | 7.05% | $99.47M |
| Federated hermes | 3.12M | 5.60% | $79.10M |
| Blackrock funding, inc. /de | 2.69M | 4.83% | $68.18M |
| Capital investors | 2.50M | 4.50% | $63.52M |
| Polar capital | 2.41M | 4.34% | $61.24M |
| Fairmount funds management | 2.36M | 4.24% | $59.87M |
| Deerfield management company, l.p. (series c) | 1.56M | 3.73% | $34.70M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Enavate sciences gp | 3.92M | 28.80% | $99.47M |
| Nvp associates | 1.84M | 14.22% | $46.66M |
| Sr one capital management, lp | 5.04M | 12.31% | $127.86M |
| Nea management company | 4.02M | 6.43% | $102.11M |
| Pivotal bioventure partners investment advisor | 490.77K | 4.05% | $12.46M |
| Fairmount funds management | 2.36M | 3.96% | $59.87M |
| Silverarc capital management | 509.79K | 1.34% | $12.94M |
| Birchview capital, lp | 93.60K | 1.11% | $2.38M |
| Ecor1 capital | 789.50K | 0.97% | $20.04M |
| Sio capital management | 208.56K | 0.88% | $5.29M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Price t rowe associates inc /md/ | 1.23M | 0.00% | 869.66K |
| Bank of america corp /de/ | 1.23M | 0.00% | 842.81K |
| Blackrock funding, inc. /de | 2.69M | 0.00% | 648.68K |
| State street | 2.06M | 0.00% | 584.18K |
| Two sigma investments, lp | 815.15K | 0.01% | 540.09K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Novo | - | - | -1.45M |
| Vivo capital | - | - | -853.50K |
| Perceptive advisors | - | - | -744.03K |
| Silverarc capital management | 509.79K | 1.34% | -626.15K |
| Great point partners | - | - | -524.07K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sixth street partners management company | 302.08K | 0.00% | 302.08K | $7.67M |
| Jefferies financial group | 219.95K | 0.03% | 219.95K | $4.30M |
| Verition fund management | 72.99K | 0.01% | 72.99K | $1.85M |
| Csm advisors | 67.62K | 0.04% | 67.62K | $1.72M |
| Stempoint capital lp | 38.74K | 0.17% | 38.74K | $860.07K |
Sold Out
| Holder | Change |
|---|---|
| Clearstead advisors | -1.00 |
| True wealth design | -3.00 |
| Stone house investment management | -5.00 |
| Sjs investment consulting | -7.00 |
| Mai capital management | -12.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 149 | 3.47% | 59,152,686 | 6.78% | 106 | 0.75% | 92 | -14.81% | 41 | 141.18% |
| Mar 31, 2026 | 140 | 4.48% | 54,992,503 | 32.32% | 122 | 1.26% | 106 | 17.78% | 16 | -33.33% |
| 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% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| American Funds SMALLCAP World A | 2.43M | 3.86% | - |
| Polar Capital Biotech S Inc | 2.29M | 3.62% | - |
| Federated Hermes Kaufmann R | 1.82M | 2.89% | - |
| Federated Hermes Kaufmann Growth | 1.82M | 2.80% | - |
| State Street® SPDR® S&P® Biotech ETF | 1.33M | 2.10% | 3.05K |
| Federated Hermes Kaufmann Small Cap A | 1.25M | 1.98% | - |
| Fidelity Select Health Care | 1.24M | 1.97% | 160.87K |
| Federated Hermes Kaufmann Small Cap Grow | 1.25M | 1.92% | - |
| Fidelity Small Cap Growth | 1.15M | 1.82% | - |
| Strategic Advisers Fidelity US TtlStk | 1.03M | 1.64% | 26.10K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 18, 2026 | MOULDER LEON O JR | Chief Executive Officer | Buy | $1.01M |
| Apr 29, 2026 | MOULDER LEON O JR | Chief Executive Officer | Buy | $616.70K |
| Apr 28, 2026 | MOULDER LEON O JR | Chief Executive Officer | Buy | $450.50K |
| Mar 31, 2026 | Lu Hongbo | - | Buy | $70.20K |
| Mar 31, 2026 | Fairmount Funds Management LLC | - | Buy | $3.00M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | 3 | - |
| 2026 Q1 | 14 | - |
| 2025 Q4 | 8 | - |
| 2025 Q2 | - | - |
| 2025 Q1 | 2 | - |
ZBIO Ownership FAQ
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