Altimmune (ALT)
Developing pemvidutide across MASH, AUD, and alcohol-associated liver disease.
$3.26
vs last close−0.01 (−0.31%)
Something off on this page? Send us feedback.
13F · 13D/G · Form 4
| Institutions | 77.46% | 150.68M shares | |
|---|---|---|---|
| 222 holders · as of Jun 30, 2026 | |||
| Insiders | 0.40% | 781.1K shares | |
| 11 holders · as of Sep 17, 2026 | |||
| Strategic holders | 5.14% | 10.00M shares | |
| 1 holder · as of May 1, 2026 | |||
| Other | 17.00% | 33.06M shares | |
| remainder | |||
194.52M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
222 holders · 150.68M shares · 60 new positions · 146 increased · 34 reduced · 21 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 20.39M | 10.48% | +7.59M | Aug 7, 2026 |
| Deep Track Capital, LP | 19.25M | 9.90% | +19.25Mnew | Aug 14, 2026 |
| State Street Corp | 12.10M | 6.22% | +4.95M | Aug 7, 2026 |
| TCG Crossover Management, LLC | 10.00M | 5.14% | +10.00Mnew | Aug 14, 2026 |
| Vanguard Capital Management LLC | 8.18M | 4.20% | +2.52M | Aug 13, 2026 |
| Vanguard Portfolio Management LLC | 7.33M | 3.77% | +1.95M | Aug 13, 2026 |
| Marshall Wace, LLP | 6.84M | 3.52% | +2.82M | Aug 13, 2026 |
| Viking Global Investors LP | 6.70M | 3.44% | +6.70Mnew | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Deep Track Capital, LP | 9.99% | 19.42M | 13G | Apr 30, 2026 |
| BlackRock, Inc. | 7.60% | 6.13M | 13G | Jul 16, 2025 |
| Viking Global Investors LP | 6.70% | 13.40M | 13G | May 1, 2026 |
| RA Capital Management, L.P. | 6.50% | 13.00M | 13G | May 1, 2026 |
| State Street Corporation | 5.50% | 7.15M | 13G | May 12, 2026 |
| TCG Crossover GP II, LLC | 5.00% | 10.00M | 13G | May 1, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 13, 2026 | Jerome Benedict Dursodirector, officer: President and CEO | Purchase | 15,000 | $2.95 | 62,500 |
| Apr 6, 2026 | John Gilldirector | Purchase | 9,200 | $3.41 | 21,700 |
| Apr 1, 2026 | Jerome Benedict Dursodirector, officer: President and CEO | Purchase | 15,000 | $3.14 | 47,500 |
| Apr 1, 2026 | Gregory L. Weaverofficer: Chief Financial Officer | Purchase | 10,000 | $3.15 | 38,078 |
| Mar 6, 2026 | Jerome Benedict Dursodirector, officer: President and CEO | Purchase | 20,000 | $3.54 | 32,500 |
| Mar 6, 2026 | Gregory L. Weaverofficer: Chief Financial Officer | Purchase | 5,000 | $3.54 | 28,078 |
| Jan 8, 2026 | Wayne Pisanodirector | Purchase | 5,000 | $4.08 | 13,498 |
| Jan 5, 2026 | Catherine A. Sohndirector | Purchase | 500 | $4.24 | 1,500 |
| Dec 29, 2025 | Diane Jorkaskydirector | Purchase | 527 | $3.80 | 527 |
| Dec 23, 2025 | John Gilldirector | Purchase | 12,500 | $4.10 | 12,500 |
House and Senate disclosures
Not reported.