Form 4 for ALT Altimmune, Inc.
Accepted 2025-09-29 00:00:00 ET · period of report 2025-09-25 · accession 0001104659-25-094493 · 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 | 2025-09-29 | 2022-01-06 | ALT | GILL JOHN | Dir | G - Gift | $0.00 | -2,714 | 0 | -100% | $0 |
| D | 2025-09-29 | 2025-09-25 | ALT | GILL JOHN | Dir | A - Grant | $0.00 | +48.8K | 48.8K | New | $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 | 2022-01-06 | G | D | 2,714 | $0.00 | 0 | D | — | — | (F1) Represents a bona fide gift of 2,714 shares of common stock made on January 6, 2022. (F2) Certain Section 16 reports previously filed by the reporting person inadvertently overstated the reporting person's direct common stock ownership by 57 shares. As of the date of this filing, the reporting person does not hold any shares of common stock directly or indirectly. |
| 2 | Derivative | Stock Options (option to buy) | 2025-09-25 | A | A | 48,800 | $0.00 | 48,800 | D | $3.92 · — to 2035-09-25 | 48,800 Common Stock, par value $0.0001 | (F3) The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following September 25, 2025, subject to the reporting person's continued service through the applicable vesting date. |