AZTR Azitra, Inc.
Azitra, Inc. (AZTR) Institutional Ownership
What the institutions did with AZTR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Dauntless Investment Group, LLC | 11.3M | 52.2% |
| Stonepine Capital Management, LLC | 5.3M | 24.4% |
| Nantahala Capital Management, LLC | 4.4M | 20.5% |
| JANE STREET GROUP, LLC | 248.4K | 1.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 95.4K | 0.4% |
| CITADEL ADVISORS LLC | 86.2K | 0.4% |
| Virtu Financial LLC | 64.9K | 0.3% |
| UBS Group AG | 50.5K | 0.2% |
| StoneX Group Inc. | 28.7K | 0.1% |
| Tower Research Capital LLC (TRC) | 19.5K | 0.1% |
| Corient Private Wealth LP | 14.5K | 0.1% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 12.2K | 0.1% |
| CITIGROUP INC | 6.1K | 0.0% |
| BARCLAYS PLC | 1 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Dauntless Investment Group, LLC | Increased | 1.0K | 11.3M | +11.3M |
| Stonepine Capital Management, LLC | New | 0 | 5.3M | +5.3M |
| Nantahala Capital Management, LLC | New | 0 | 4.4M | +4.4M |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 469.9K | 95.4K | -374.5K |
| JANE STREET GROUP, LLC | New | 0 | 248.4K | +248.4K |
| CITADEL ADVISORS LLC | New | 0 | 86.2K | +86.2K |
| Virtu Financial LLC | New | 0 | 64.9K | +64.9K |
| UBS Group AG | Increased | 30.2K | 50.5K | +20.3K |
| Corient Private Wealth LP | New | 0 | 14.5K | +14.5K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | 0 | 12.2K | +12.2K |
| StoneX Group Inc. | Increased | 22.5K | 28.7K | +6.2K |
| CITIGROUP INC | Increased | 1.7K | 6.1K | +4.4K |
| Tower Research Capital LLC (TRC) | Increased | 15.1K | 19.5K | +4.4K |
| FMR LLC | Sold Out | 150 | 0 | -150 |
| BARCLAYS PLC | New | 0 | 1 | +1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.