Who Owns ALTIMMUNE INC (ALT)? -- Institutional Holders (2026-06-30)
227 institutions reported holding $474.5M of ALTIMMUNE INC (ALT) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($62.0M), Deep Track Capital, LP ($58.5M), VANGUARD GROUP INC ($51.3M), STATE STREET CORP ($36.8M), TCG Crossover Management, LLC ($30.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | BlackRock, Inc. | $62.0M | 20.4M | Added |
| 2 | Deep Track Capital, LP | $58.5M | 19.2M | New |
| 3 | VANGUARD GROUP INC | $51.3M | 16.9M | Added |
| 4 | STATE STREET CORP | $36.8M | 12.1M | Added |
| 5 | TCG Crossover Management, LLC | $30.4M | 10.0M | New |
| 6 | MARSHALL WACE, LLP | $20.8M | 6.8M | Added |
| 7 | VIKING GLOBAL INVESTORS LP | $20.4M | 6.7M | New |
| 8 | RA CAPITAL MANAGEMENT, L.P. | $19.8M | 6.5M | New |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $15.2M | 5.0M | Added |
| 10 | Woodline Partners LP | $10.3M | 3.4M | New |
| 11 | MILLENNIUM MANAGEMENT LLC | $10.1M | 3.3M | Added |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $8.7M | 2.9M | Added |
| 13 | Trails Edge Capital Partners, LP | $8.1M | 2.7M | New |
| 14 | Nuveen, LLC | $7.3M | 2.4M | Added |
| 15 | TWO SIGMA INVESTMENTS, LP | $7.2M | 2.4M | Trimmed |
| 16 | GOLDMAN SACHS GROUP INC | $6.7M | 2.2M | Added |
| 17 | CITADEL ADVISORS LLC | $5.3M | 1.7M | Added |
| 18 | GREAT POINT PARTNERS LLC | $5.3M | 1.7M | New |
| 19 | NORTHERN TRUST CORP | $4.9M | 1.6M | Added |
| 20 | Weiss Asset Management LP | $4.7M | 1.5M | New |
| 21 | Nantahala Capital Management, LLC | $4.6M | 1.5M | New |
| 22 | GROUP ONE TRADING LLC | $3.8M | 1.3M | Added |
| 23 | Cormorant Asset Management, LP | $3.8M | 1.2M | New |
| 24 | AQR CAPITAL MANAGEMENT LLC | $3.7M | 1.2M | Added |
| 25 | UBS Group AG | $2.6M | 866,385 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30