| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For ALT | |||||
| 2026-04-01 | Durso, Jerome Benedict | Director, President and CEO | Purchased | 15000 | $3.14 |
| 2026-04-01 | Weaver, Gregory L | Chief Financial Officer | Purchased | 10000 | $3.15 |
| 2026-03-06 | Weaver, Gregory L | Chief Financial Officer | Purchased | 5000 | $3.54 |
| 2026-03-06 | Durso, Jerome Benedict | Director, President and CEO | Purchased | 20000 | $3.54 |
| 2026-02-26 | Roberts, M Scot | Chief Scientific Officer | Purchased | 222670 | $0.00 |
| 2026-02-26 | Weaver, Gregory L | Chief Financial Officer | Purchased | 111000 | $0.00 |
| 2026-02-26 | Weaver, Gregory L | Chief Financial Officer | Purchased | 259000 | $0.00 |
| 2026-02-26 | Roberts, M Scot | Chief Scientific Officer | Purchased | 95430 | $0.00 |
| 2026-02-02 | Roberts, M Scot | Chief Scientific Officer | Sold | 7775 | $0.00 |
| 2026-02-02 | Roberts, M Scot | Chief Scientific Officer | Purchased | 7775 | $0.00 |
| 2026-02-02 | Roberts, M Scot | Chief Scientific Officer | Sold | 2329 | $5.55 |
| 2026-01-31 | Jordt, Raymond M | Chief Business Officer | Purchased | 4571 | $3.07 |
| 2026-01-31 | Garg, Vipin K | Director | Purchased | 6926 | $3.07 |
| 2026-01-31 | Roberts, M Scot | Chief Scientific Officer | Purchased | 5567 | $3.07 |
| 2026-01-30 | Roberts, M Scot | Chief Scientific Officer | Sold | 2859 | $5.60 |
| 2026-01-30 | Garg, Vipin K | Director | Sold | 26775 | $0.00 |
| 2026-01-30 | Garg, Vipin K | Director | Sold | 11632 | $5.60 |
| 2026-01-30 | Garg, Vipin K | Director | Purchased | 26775 | $0.00 |
| 2026-01-30 | Roberts, M Scot | Chief Scientific Officer | Sold | 9275 | $0.00 |
| 2026-01-30 | Roberts, M Scot | Chief Scientific Officer | Purchased | 9275 | $0.00 |