Form 4 for ALT Altimmune, Inc.
Accepted 2026-01-29 00:00:00 ET · period of report 2026-01-27 · accession 0001515813-26-000004 · 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 | 2026-01-29 | 2026-01-27 | ALT | Garg Vipin K | Dir | M - OptEx | $0.00 | +41.2K | 420.3K | +11% | $0 |
| D | 2026-01-29 | 2026-01-27 | ALT | Garg Vipin K | Dir | F - Tax | $6.18 | -17.9K | 402.4K | -4% | -$110.6K |
| D | 2026-01-29 | 2026-01-27 | ALT | Garg Vipin K | Dir | M - OptEx | $0.00 | -41.2K | 123.6K | -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 | 2026-01-27 | M | A | 41,200 | $0.00 | 420,348 | D | — | — | (F1) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. |
| 2 | Common | Common Stock, par value $0.0001 | 2026-01-27 | F | D | 17,898 | $6.18 | 402,450 | D | — | — | |
| 3 | Derivative | Restricted Stock Units | 2026-01-27 | M | D | 41,200 | $0.00 | 123,600 | D | — · — to — | 41,200 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 vest in substantially equal annual installments over the 4 years following January 27, 2025, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date. |