Sign in

CIK 0001326190 · Non-accelerated filer<br>Smaller reporting company

Altimmune, Inc.

Sign in to watch
Ticker
ALT
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
202726770
Phone
862-457-1450
Business address
350 MOUNT KEMBLE AVENUE, SUITE 1001, MORRISTOWN, NJ, 07960
Former names
PHARMATHENE, INC, HEALTHCARE ACQUISITION CORP
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-11-02 Howarth Alex G. Director Grant or award · Stock Options (option to buy) +160,000 160,000
2026-11-02 Greenleaf Peter Director Grant or award · Stock Options (option to buy) +160,000 160,000
2026-10-01 Arbet-Engels Christophe Chief Medical Officer Option exercise +37,500 37,500
2026-10-01 Arbet-Engels Christophe Chief Medical Officer Shares withheld for taxes −12,679 $2.76 $35K 24,821
2026-10-01 Arbet-Engels Christophe Chief Medical Officer Option exercise · Restricted Stock Units −37,500 112,500
2026-10-01 WEAVER GREGORY L Chief Financial Officer Option exercise +14,475 54,306
2026-10-01 WEAVER GREGORY L Chief Financial Officer Shares withheld for taxes −4,379 $2.76 $12K 49,927
2026-10-01 WEAVER GREGORY L Chief Financial Officer Option exercise · Restricted Stock Units −14,475 43,425
2026-10-01 MENZIUSO RICHARD THOMAS Principal Accounting Officer Grant or award · Stock Options (option to buy) +84,546 84,546
2026-10-01 MENZIUSO RICHARD THOMAS Principal Accounting Officer Grant or award · Restricted Stock Units +36,234 36,234
2026-09-16 Richardson Linda M Chief Commercial Officer Option exercise +24,000 24,000
2026-09-16 Richardson Linda M Chief Commercial Officer Shares withheld for taxes −6,826 $3.24 $22K 17,174
2026-09-16 Richardson Linda M Chief Commercial Officer Option exercise · Restricted Stock Units −24,000 72,000
2026-08-13 Durso Jerome Benedict President and CEO Purchase +15,000 $2.95 $44K 62,500
2026-07-31 Roberts M Scot Chief Scientific Officer Grant or award +875 $2.41 $2K 113,699
2026-07-31 WEAVER GREGORY L Chief Financial Officer Grant or award +1,753 $2.41 $4K 39,831
2026-05-01 Lawver Teri L Director Grant or award · Stock Options (option to buy) +48,800 48,800
2026-05-01 Pisano Wayne Director Grant or award · Stock Options (option to buy) +48,800 48,800
2026-05-01 Schafer Klaus Director Grant or award · Stock Options (option to buy) +48,800 48,800
2026-05-01 Hodges Philip Director Grant or award · Stock Options (option to buy) +48,800 48,800

Page 1 of 21 · 403 trades