ALT Insider Trading Activity and SEC Form 4 Filings
ALT insider trading summary
Over the past 12 months, insiders at Altimmune, Inc. (ALT) reported 10 open-market purchases worth $368K by 5 insiders and no sales on SEC Form 4. Net insider buying was $368K.
Latest ALT insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 13, 2026 | Jerome Benedict Durso | President and CEO | Buy | $44K (15,000 @ $2.95) |
| Apr 6, 2026 | John Gill | Insider | Buy | $31K (9,200 @ $3.41) |
| Apr 1, 2026 | Jerome Benedict Durso | President and CEO | Buy | $47K (15,000 @ $3.14) |
| Apr 1, 2026 | Gregory L Weaver | Chief Financial Officer | Buy | $31K (10,000 @ $3.15) |
| Mar 6, 2026 | Jerome Benedict Durso | President and CEO | Buy | $71K (20,000 @ $3.54) |
| Mar 6, 2026 | Gregory L Weaver | Chief Financial Officer | Buy | $18K (5,000 @ $3.54) |
| Jan 8, 2026 | Wayne Pisano | Insider | Buy | $20K (5,000 @ $4.08) |
| Jan 5, 2026 | Catherine A. Sohn | Insider | Buy | $2K (500 @ $4.24) |
| Dec 23, 2025 | John Gill | Insider | Buy | $51K (12,500 @ $4.10) |
| Dec 22, 2025 | Jerome Benedict Durso | Insider | Buy | $52K (12,500 @ $4.13) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.