Who owns Azitra, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AZTR from SEC Form 13F filings across 14 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 14 institutions disclosed 95.9M shares of Azitra, Inc. worth $10.3M — about 497% of shares outstanding; the largest disclosed holder is Stonepine Capital Management, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
14
13F holders
$10.3M
value, 2026 filers
497%
of shares outstanding (95.9M sh)
8
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AZTR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Stonepine Capital Management, LLCNEW | 81.8M | $8.0M | 3.7% | 423.8% | new |
| 2 | Dauntless Investment Group, LLC | 11.3M | $1.9M | 1.5% | 58.5% | +1129118.6% |
| 3 | Nantahala Capital Management, LLCNEW | 2.2M | $371,444 | 0.0% | 11.5% | new |
| 4 | JANE STREET GROUP, LLCNEW | 248,433 | $41,688 | 0.0% | 1.3% | new |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 95,409 | $16,008 | 0.0% | 0.5% | -79.7% |
| 6 | CITADEL ADVISORS LLCNEW | 86,242 | $14,471 | 0.0% | 0.4% | new |
| 7 | Virtu Financial LLCNEW | 64,940 | $11 | 0.0% | 0.3% | new |
| 8 | UBS Group AG | 50,481 | $8,481 | 0.0% | 0.3% | +67.1% |
| 9 | StoneX Group Inc. | 28,651 | $5,029 | 0.0% | 0.1% | +27.5% |
| 10 | Tower Research Capital LLC (TRC) | 19,500 | $3,272 | 0.0% | 0.1% | +29.3% |
| 11 | Corient Private Wealth LPNEW | 14,451 | $2,426 | 0.0% | 0.1% | new |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 12,237 | $2,053 | 0.0% | 0.1% | new |
| 13 | CITIGROUP INC | 6,149 | $1,032 | 0.0% | 0% | +260.6% |
| 14 | BARCLAYS PLCNEW | 1 | $0 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.