Form 4 for ALT Altimmune, Inc.
Accepted 2026-02-03 00:00:00 ET · period of report 2026-01-30 · accession 0001705905-26-000006 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-02-03 | 2026-01-30+ | ALT | Roberts M Scot | CSO | M - OptEx | $0.00 | +17.1K | 115.2K | +17% | $0 |
| D | 2026-02-03 | 2026-01-31 | ALT | Roberts M Scot | CSO | A - Grant | $3.07 | +5,567 | 107.4K | +5% | +$17.1K |
| DM | 2026-02-03 | 2026-01-30+ | ALT | Roberts M Scot | CSO | F - Tax | $5.58 | -5,188 | 101.8K | -5% | -$28.9K |
| DM | 2026-02-03 | 2026-01-30+ | ALT | Roberts M Scot | CSO | M - OptEx | $0.00 | -17.1K | 0 | -100% | $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 | 2026-01-30 | M | A | 9,275 | $0.00 | 104,670 | 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 | 2026-01-31 | A | A | 5,567 | $3.07 | 107,378 | 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. |
| 3 | Common | Common Stock, par value $0.0001 | 2026-02-02 | M | A | 7,775 | $0.00 | 115,153 | 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 | Common | Common Stock, par value $0.0001 | 2026-02-02 | F | D | 2,329 | $5.55 | 112,824 | D | — | — | |
| 5 | Common | Common Stock, par value $0.0001 | 2026-01-30 | F | D | 2,859 | $5.60 | 101,811 | D | — | — | |
| 6 | Derivative | Restricted Stock Units | 2026-01-30 | M | D | 9,275 | $0.00 | 9,275 | D | — · — to — | 9,275 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. |
| 7 | Derivative | Restricted Stock Units | 2026-02-02 | M | D | 7,775 | $0.00 | 0 | D | — · — to — | 7,775 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. (F6) The RSUs become vested in substantially equal annual installments over the 4 years following February 2, 2022, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date. |