Form 4 for ALT Altimmune, Inc.
Accepted 2026-02-02 00:00:00 ET · period of report 2026-01-30 · accession 0001515813-26-000006 · 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 | 2026-02-02 | 2026-01-31 | ALT | Garg Vipin K | Dir | A - Grant | $3.07 | +6,926 | 424.5K | +2% | +$21.3K |
| D | 2026-02-02 | 2026-01-30 | ALT | Garg Vipin K | Dir | F - Tax | $5.60 | -11.6K | 417.6K | -3% | -$65.1K |
| D | 2026-02-02 | 2026-01-30 | ALT | Garg Vipin K | Dir | M - OptEx | $0.00 | +26.8K | 429.2K | +7% | $0 |
| D | 2026-02-02 | 2026-01-30 | ALT | Garg Vipin K | Dir | M - OptEx | $0.00 | -26.8K | 26.8K | -50% | $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 | 2026-01-31 | A | A | 6,926 | $3.07 | 424,519 | D | — | — | (F4) In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on August 1, 2025 |
| 2 | Common | Common Stock, par value $0.0001 | 2026-01-30 | F | D | 11,632 | $5.60 | 417,593 | D | — | — | |
| 3 | Common | Common Stock, par value $0.0001 | 2026-01-30 | M | A | 26,775 | $0.00 | 429,225 | D | — | — | (F1) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. |
| 4 | Derivative | Restricted Stock Units | 2026-01-30 | M | D | 26,775 | $0.00 | 26,775 | D | — · — to — | 26,775 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. (F5) The RSUs become vested in substantially equal annual installments over the 4 years following January 30, 2023, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date. |