Zenas BioPharma, Inc. Common Stock (ZBIO)
PHARMACEUTICAL PREPARATIONS
Zenas BioPharma, Inc. Common Stock (ZBIO) is listed on Nasdaq, where it has traded since September 13, 2024.
- Listed On
- Nasdaq
- Listed Since
- September 13, 2024
- Employees
- 167
- Market Cap
- $1.9B
About Zenas BioPharma, Inc. Common Stock
Zenas BioPharma Inc is a clinical-stage biopharmaceutical company. Its I&I product candidate, obexelimab, is a bifunctional monoclonal antibody designed to bind both CD19 and FcyRIIb, which are present across B cell lineage, in order to inhibit the activity of cells that are implicated in many autoimmune diseases without depleting them. The Company manages its operations on a consolidated basis as a single reportable segment focused on the research, development and commercialization of transformative immunology-based therapies.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 139 institutions reported holding ZBIO, with 61.3 million shares worth $1.5 billion in aggregate. The largest reported holder was FMR, with 9.5 million shares worth $241.3 million. Of the 5 largest holders listed below, 1 added shares, 1 reduced its position and 3 held their positions unchanged during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| FMR | 9,506,701 | $241M | Added 4.68% |
| SR One Capital Management | 5,037,854 | $128M | Unchanged |
| Nea Management Company | 4,023,219 | $102M | Unchanged |
| Enavate Sciences GP | 3,919,159 | $99M | Unchanged |
| Federated Hermes | 3,116,805 | $79M | Reduced 0.33% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is ZBIO?
Zenas BioPharma, Inc. Common Stock (ZBIO) is listed on Nasdaq, where it has traded since September 13, 2024.
Who are the largest institutional holders of ZBIO?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of ZBIO were FMR, SR One Capital Management and Nea Management Company.
How many institutions own ZBIO?
139 institutions reported a position in ZBIO for the quarter ended June 30, 2026, worth $1.5 billion in total.
Did institutions buy or sell ZBIO last quarter?
Of the 5 largest reported holders, 1 added shares, 1 reduced its position and 3 held their positions unchanged during the quarter. Every reported holder and its change is on the SentiSense ownership page for ZBIO.
Every reported institutional holder, plus insider and congressional trades in ZBIO, on SentiSense.