Altimmune

ALT13F as of Jun 30, 2026 · next update ~Nov 14

Limited coverage

Only 1 fund we track owns this stock, so quarterly sentiment and aggregates may be sparse.

Who's buying ALT

Top funds mostly added to Altimmune in Q2 (Apr⁠–⁠Jun)

Buying:

Funds1Insiders6Congress

Top funds
1 of 1 bought more, 0 sold some. Largest: Viking Global Investors, $20.4M (0% of its portfolio).
Insiders
6 insiders bought, 0 sales in 12 months.
Congress
No trades disclosed in the last 12 months.

1 fund$20.4M held0.1% avg. weightQ2: 1 bought / 0 sold

13F reports are a snapshot as of Jun 30, 2026; funds may have traded since.

Share price · market data, not from 13F reports

Q2 2026

Insider trades (Form 4)

Last 2 years · 13 filings

Net buying$428K

Date	Insider	Type	Shares	Price	Value
Aug 13, 2026	Jerome Benedict Durso President & CEO	Bought	15,000	$2.95	$44K
Apr 6, 2026	John Gill Director	Bought	9,200	$3.41	$31K
Apr 1, 2026	Gregory L Weaver CFO	Bought	10,000	$3.15	$31K
Apr 1, 2026	Jerome Benedict Durso President & CEO	Bought	15,000	$3.14	$47K
Mar 6, 2026	Gregory L Weaver CFO	Bought	5,000	$3.54	$18K
Mar 6, 2026	Jerome Benedict Durso President & CEO	Bought	20,000	$3.54	$71K
Jan 8, 2026	Wayne Pisano Director	Bought	5,000	$4.08	$20K
Jan 5, 2026	Catherine A. Sohn Director	Bought	500	$4.24	$2K
Dec 29, 2025	Diane Jorkasky Director	Bought	527	$3.80	$2K
Dec 23, 2025	John Gill Director	Bought	12,500	$4.10	$51K
Dec 22, 2025	Jerome Benedict Durso Director	Bought	12,500	$4.13	$52K
Mar 17, 2025	Catherine A. Sohn Director	Bought	1,000	$5.78	$6K
Mar 13, 2025	Gregory L Weaver CFO	Bought	10,000	$5.20	$52K