ALT — ALTIMMUNE INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
About ALTIMMUNE INC (ALT)
ALTIMMUNE INC (ALT) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $10M. Across recent filings, tracked investors recorded 5 new positions, 0 increased, 0 reduced, and 1 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in ALT
How many top investors track ALT
A small number of top investors own this.
ALT Ownership Composition
How ALTIMMUNE INC is held across tracked investor types, based on reported 13F positions.
- Other86.4%
- Hedge Funds13.6%
Tracked investors reporting ALT
- Izzy EnglanderMar 31, 2026Millennium ManagementShares3.3MValue$10M% Portfolio0.00%
- Ken GriffinMar 31, 2026Citadel AdvisorsShares982.4KValue$3M% Portfolio0.00%
- Steve CohenMar 31, 2026Point72 Asset ManagementShares665.3KValue$2M% Portfolio0.00%
Recent activity
- $748.7KFeb 17, 2026
- $10MMay 15, 2026
- New$3MMay 15, 2026
- New$2MMay 15, 2026
- Sold$0(-100.00%)Feb 17, 2026
- New$7.6MNov 14, 2025
Frequently asked questions
- How many institutional investors hold ALT?
- 3 tracked institutional investors disclosed a position in ALT (ALTIMMUNE INC) in their most recent 13F filing.
- Who is the largest institutional holder of ALT?
- Izzy Englander, Millennium Management, holds the largest disclosed position in ALT, valued at $10M.
- Did institutional ownership of ALT increase or decrease?
- Across recent 13F filings, tracked investors recorded 5 new positions, 0 increased, 0 reduced, and 1 fully exited ALT.
- Where does this ALT ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.