Who Owns ALTIMMUNE (ALT)? -- Institutional Holders (2026-06-30)

229 institutions reported holding $474.5M of ALTIMMUNE (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.

RankInstitutionValueSharesChange
1BlackRock, Inc.$62.0M20.4MAdded
2Deep Track Capital, LP$58.5M19.2MNew
3VANGUARD GROUP INC$51.3M16.9MAdded
4STATE STREET CORP$36.8M12.1MAdded
5TCG Crossover Management, LLC$30.4M10.0MNew
6MARSHALL WACE, LLP$20.8M6.8MAdded
7VIKING GLOBAL INVESTORS LP$20.4M6.7MNew
8RA CAPITAL MANAGEMENT, L.P.$19.8M6.5MNew
9GEODE CAPITAL MANAGEMENT, LLC$15.2M5.0MAdded
10Woodline Partners LP$10.3M3.4MNew
11MILLENNIUM MANAGEMENT LLC$10.1M3.3MAdded
12SUSQUEHANNA INTERNATIONAL GROUP, LLP$8.7M2.9MAdded
13Trails Edge Capital Partners, LP$8.1M2.7MNew
14Nuveen, LLC$7.3M2.4MAdded
15TWO SIGMA INVESTMENTS, LP$7.2M2.4MTrimmed
16GOLDMAN SACHS GROUP INC$6.7M2.2MAdded
17CITADEL ADVISORS LLC$5.3M1.7MAdded
18GREAT POINT PARTNERS LLC$5.3M1.7MNew
19NORTHERN TRUST CORP$4.9M1.6MAdded
20Weiss Asset Management LP$4.7M1.5MNew
21Nantahala Capital Management, LLC$4.6M1.5MNew
22GROUP ONE TRADING LLC$3.8M1.3MAdded
23Cormorant Asset Management, LP$3.8M1.2MNew
24AQR CAPITAL MANAGEMENT LLC$3.7M1.2MAdded
25UBS Group AG$2.6M866,385Trimmed

Source: SEC Form 13F filings · as of 2026-06-30