Altimmune, Inc. (ALT) Insider Trading -- Recent Executive & Director Transactions
12 insiders reported 48 Form 4 transactions for Altimmune, Inc. (ALT) over the past 18 months (most recent 2026-10-05). Recent activity: Arbet-Engels Christophe (Chief Medical Officer) Buy 37,500 shares, WEAVER GREGORY L (Chief Financial Officer) Buy 14,475 shares, WEAVER GREGORY L (Chief Financial Officer) Sell 4,379 shares, Arbet-Engels Christophe (Chief Medical Officer) Sell 12,679 shares, Richardson Linda M (Chief Commercial Officer) Buy 24,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-05 | Arbet-Engels Christophe | Chief Medical Officer | Buy | 37,500 | $0 |
| 2026-10-05 | WEAVER GREGORY L | Chief Financial Officer | Buy | 14,475 | $0 |
| 2026-10-05 | WEAVER GREGORY L | Chief Financial Officer | Sell | 4,379 | $12,086 |
| 2026-10-05 | Arbet-Engels Christophe | Chief Medical Officer | Sell | 12,679 | $34,994 |
| 2026-09-17 | Richardson Linda M | Chief Commercial Officer | Buy | 24,000 | $0 |
| 2026-09-17 | Richardson Linda M | Chief Commercial Officer | Sell | 6,826 | $22,116 |
| 2026-08-13 | Durso Jerome Benedict | President and CEO | Buy | 15,000 | $44,250 |
| 2026-08-03 | WEAVER GREGORY L | Chief Financial Officer | Buy | 1,753 | $4,232 |
| 2026-08-03 | Roberts M Scot | Chief Scientific Officer | Buy | 875 | $2,112 |
| 2026-04-06 | GILL JOHN | Director | Buy | 9,200 | $31,372 |
| 2026-04-01 | Durso Jerome Benedict | President and CEO | Buy | 15,000 | $47,100 |
| 2026-04-01 | WEAVER GREGORY L | Chief Financial Officer | Buy | 10,000 | $31,500 |
| 2026-03-09 | WEAVER GREGORY L | Chief Financial Officer | Buy | 5,000 | $17,700 |
| 2026-03-09 | Durso Jerome Benedict | President and CEO | Buy | 20,000 | $70,800 |
| 2026-02-03 | Roberts M Scot | Chief Scientific Officer | Buy | 9,275 | $0 |
| 2026-02-03 | Roberts M Scot | Chief Scientific Officer | Sell | 2,859 | $16,010 |
| 2026-02-03 | Roberts M Scot | Chief Scientific Officer | Buy | 5,567 | $17,091 |
| 2026-02-03 | Roberts M Scot | Chief Scientific Officer | Buy | 7,775 | $0 |
| 2026-02-03 | Roberts M Scot | Chief Scientific Officer | Sell | 2,329 | $12,926 |
| 2026-02-02 | Jordt Raymond M | Chief Business Officer | Buy | 4,571 | $14,033 |
| 2026-02-02 | Garg Vipin K | Director | Buy | 26,775 | $0 |
| 2026-02-02 | Garg Vipin K | Director | Buy | 6,926 | $21,263 |
| 2026-02-02 | Garg Vipin K | Director | Sell | 11,632 | $65,139 |
| 2026-01-29 | Jordt Raymond M | Chief Business Officer | Sell | 4,229 | $26,135 |
| 2026-01-29 | Jordt Raymond M | Chief Business Officer | Buy | 15,850 | $0 |
Source: SEC Form 4 filings · as of 2026-10-05