Form 4 for ALT Altimmune, Inc.
Accepted 2025-11-12 00:00:00 ET · period of report 2025-11-11 · accession 0001251779-25-000006 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-11-12 | 2025-11-11 | ALT | WEAVER GREGORY L | CFO | F - Tax | $4.28 | -5,672 | 23.1K | -20% | -$24.3K |
| D | 2025-11-12 | 2025-11-11 | ALT | WEAVER GREGORY L | CFO | M - OptEx | $0.00 | +18.8K | 28.8K | +188% | $0 |
| D | 2025-11-12 | 2025-11-11 | ALT | WEAVER GREGORY L | CFO | M - OptEx | $0.00 | -18.8K | 56.2K | -25% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock, par value $0.0001 | 2025-11-11 | F | D | 5,672 | $4.28 | 23,078 | D | — | — | |
| 2 | Common | Common Stock, par value $0.0001 | 2025-11-11 | M | A | 18,750 | $0.00 | 28,750 | D | — | — | (F1) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. |
| 3 | Derivative | Restricted Stock Units | 2025-11-11 | M | D | 18,750 | $0.00 | 56,250 | D | — · — to — | 18,750 Common Stock, par value $0.0001 | (F1) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. (F3) The RSUs become vested over four (4) years with 25% of the shares vesting on November 11, 2025, with the remainder vesting in equal annual installments for the following three (3) years, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date. |