Altimmune, Inc. — insider transactions
14 transactions on record · ALT · CIK 1326190
Aggregates
computed from the filings belowPurchases, 12m
1
count of open-market buys
Sales, 12m
13
count of open-market sales
Buy / sell ratio, 12m
0.08
purchases per sale
Distinct insiders, 12m
6
Bought, 3m
$44.3K
Sold, 3m
$75.5K
Median disclosure lag
3.0 d
trade date to filing date
Largest single trade, 24m
$44.3K
2026-08-13
Director share, 12m
7.1%
of transactions where role is stated
Current run
11 sells
consecutive same-direction transactions
Net 3m flow
-$31.3K
purchases minus sales
Total on record
14
Transactions
14 most recent shown| Disclosed | Traded | Lag, d | Insider | Role | Transaction | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|---|---|
| 2026-10-05 | 2026-10-01 | 4 | WEAVER GREGORY L | Chief Financial Officer | Shares withheld for tax | 4,379 | $2.76 | $12.1K | filing |
| 2026-10-05 | 2026-10-01 | 4 | WEAVER GREGORY L | Chief Financial Officer | Exercise of derivative | 14,475 | $0.00 | — | filing |
| 2026-10-05 | 2026-10-01 | 4 | Arbet-Engels Christophe | Chief Medical Officer | Exercise of derivative | 37,500 | $0.00 | — | filing |
| 2026-10-05 | 2026-10-01 | 4 | Arbet-Engels Christophe | Chief Medical Officer | Exercise of derivative | 37,500 | $0.00 | — | filing |
| 2026-10-05 | 2026-10-01 | 4 | Arbet-Engels Christophe | Chief Medical Officer | Shares withheld for tax | 12,679 | $2.76 | $35K | filing |
| 2026-10-05 | 2026-10-01 | 4 | WEAVER GREGORY L | Chief Financial Officer | Exercise of derivative | 14,475 | $0.00 | — | filing |
| 2026-10-02 | 2026-10-01 | 1 | MENZIUSO RICHARD THOMAS | Principal Accounting Officer | Grant or award | 84,546 | $0.00 | — | filing |
| 2026-10-02 | 2026-10-01 | 1 | MENZIUSO RICHARD THOMAS | Principal Accounting Officer | Grant or award | 36,234 | $0.00 | — | filing |
| 2026-09-17 | 2026-09-16 | 1 | Richardson Linda M | Chief Commercial Officer | Exercise of derivative | 24,000 | $0.00 | — | filing |
| 2026-09-17 | 2026-09-16 | 1 | Richardson Linda M | Chief Commercial Officer | Exercise of derivative | 24,000 | $0.00 | — | filing |
| 2026-09-17 | 2026-09-16 | 1 | Richardson Linda M | Chief Commercial Officer | Shares withheld for tax | 6,826 | $3.24 | $22.1K | filing |
| 2026-08-13 | 2026-08-13 | 0 | Durso Jerome Benedict | Director, President and CEO | Open market purchase | 15,000 | $2.95 | $44.3K | filing |
| 2026-08-03 | 2026-07-31 | 3 | WEAVER GREGORY L | Chief Financial Officer | Grant or award | 1,753 | $2.41 | $4.2K | filing |
| 2026-08-03 | 2026-07-31 | 3 | Roberts M Scot | Chief Scientific Officer | Grant or award | 875 | $2.41 | $2.1K | filing |