ZBIO
Zenas BioPharma, Inc.After hours25.16−1.24 −4.70%USD
NasdaqGS · as of Oct 13, 16:00 ET · 15m delayAfter hours 25.16 0.00%
Open
26.11
Prev close
26.40
Day range
25.0427.00
52-week range
13.5044.60
Volume
519.65K0.72×
Mkt cap
1.64B
P/E ttm
—
Fwd P/E
-5.40
EPS ttm
-9.63
Div yield
0.00%
Earnings
Aug 13, 2026
From 52w high
−43.59%
ZBIO shareholders
ZBIO Ownership
13F / N-PORT filings via Yahoo
Institutions
101.5%
126.5% of the float
Insiders
19.8%
officers and directors
Institutional holders
208
filing positions
Top 10 institutions
58.2%
3 adding · 2 trimming
Top Institutions
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| FMR, LLC | 14.59% | 9.51M | $239.19M | +4.7% | Jun 30, 2026 |
| SR One Capital Management, LP | 7.73% | 5.04M | $126.75M | 0.0% | Jun 30, 2026 |
| NEA Management Company, LLC | 6.17% | 4.02M | $101.22M | 0.0% | Jun 30, 2026 |
| Enavate Sciences Gp, LLC | 6.01% | 3.92M | $98.61M | 0.0% | Jun 30, 2026 |
| Federated Hermes, Inc. | 4.78% | 3.12M | $78.42M | −0.3% | Jun 30, 2026 |
| Blackrock Inc. | 4.12% | 2.69M | $67.59M | +31.8% | Jun 30, 2026 |
| Capital International Investors | 3.84% | 2.50M | $62.97M | +2.8% | Jun 30, 2026 |
| Polar Capital Holdings PLC | 3.70% | 2.41M | $60.71M | −5.3% | Jun 30, 2026 |
| Royalty Pharma Sub-manager, LLC | 3.66% | 2.39M | $60.09M | 0.0% | Jun 30, 2026 |
| Fairmount Funds Management LLC | 3.62% | 2.36M | $59.35M | 0.0% | Jun 30, 2026 |
Top Funds
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| VANGUARD SPECIALIZED FUNDS-Vanguard Health Care Fund | 4.51% | 2.94M | $73.90M | +100.0% | Jul 31, 2026 |
| SmallCap World Fund Inc | 3.73% | 2.43M | $61.24M | 0.0% | Jun 30, 2026 |
| Federated Hermes Equity Funds-Federated Hermes Kaufmann Fund | 2.80% | 1.82M | $45.86M | +37.0% | Jul 31, 2026 |
| SPDR SERIES TRUST-State Street SPDR S&P Biotech ETF | 2.19% | 1.42M | $35.84M | +7.5% | Aug 31, 2026 |
| Federated Hermes Equity Funds-Federated Hermes Kaufmann Small Cap Fund | 1.92% | 1.25M | $31.50M | 0.0% | Jul 31, 2026 |
| Fidelity Select Portfolios-Select Health Care Portfolio | 1.66% | 1.08M | $27.17M | 0.0% | Aug 31, 2026 |
| Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total | 1.63% | 1.06M | $26.78M | +1.3% | Aug 31, 2026 |
| Fidelity Securities Fund-Fidelity Small Cap Growth Fund | 1.52% | 988.64K | $24.87M | 0.0% | Jul 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 1.37% | 891.20K | $22.42M | 0.0% | Jun 30, 2026 |
| iShares Trust-iShares Russell 2000 ETF | 1.13% | 733.65K | $18.46M | +0.7% | Aug 31, 2026 |
Institutions report quarterly, up to 45 days after the quarter ends, so these positions can be months old. Change compares the share count with the holder's previous filing. Insider transactions are on the overview page (INSD).