Who owns Zenas BioPharma, Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Enavate Sciences GP, LLC: 4.9% · 3,245,404 shares — Zebra Aggregator, LP: 4.9% · 3,245,404 shares
SR One Capital Management, LLC: 7.7% · 5,037,854 shares — SR One Capital Fund II Aggregator, LP: 3.0% · 1,946,564 shares — SR One Capital Partners II, LP: 3.0% · 1,946,564 shares
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Zenas BioPharma, Inc. they hold. Together these 191 managers report 102.83% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| FMR LLC | $241M | 9,506,701 | 0.01% | 14.59% | June 30, 2026 |
| SR One Capital Management, LP | $128M | 5,037,854 | 12.31% | 7.73% | June 30, 2026 |
189 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 164 funds hold 29.43% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| SMALLCAP World Fund Inc | $61.8M | 0.07% | 3.73% | June 30, 2026 |
| State Street(R) SPDR(R) S&P(R) Biotech ETF | $34.2M | 0.32% | 2.07% | June 30, 2026 |
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