Form 4 for AMTM Amentum Holdings, Inc.
Accepted 2025-03-05 00:00:00 ET · period of report 2025-03-03 · accession 0002011286-25-000070 · 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 | 2025-03-05 | 2024-09-18 | AMTM | Arnette Stephen A | COO | J - Other | — | +20.8K | 20.8K | New | — |
| DM | 2025-03-05 | 2025-03-03+ | AMTM | Arnette Stephen A | COO | M - OptEx | — | +1,751 | 22.2K | +9% | — |
| DM | 2025-03-05 | 2025-03-03+ | AMTM | Arnette Stephen A | COO | F - Tax | $19.37 | -517 | 21.7K | -2% | -$10.0K |
| DM | 2025-03-05 | 2025-03-03+ | AMTM | Arnette Stephen A | COO | M - OptEx | $0.00 | -1,751 | 2,808 | -38% | $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 | 2024-09-18 | J | A | 20,786 | — | 20,786 | D | — | — | (F1) Represents securities received in a pro-rata distribution in-kind by Jacobs Solutions Inc. for no consideration. |
| 2 | Common | Common Stock | 2025-03-03 | M | A | 1,230 | — | 22,016 | D | — | — | (F2) Represents distribution of AMTM common stock upon vesting of restricted stock units. |
| 3 | Common | Common Stock | 2025-03-04 | F | D | 152 | $18.71 | 22,020 | D | — | — | (F3) Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units. |
| 4 | Common | Common Stock | 2025-03-04 | M | A | 521 | — | 22,172 | D | — | — | (F2) Represents distribution of AMTM common stock upon vesting of restricted stock units. |
| 5 | Common | Common Stock | 2025-03-03 | F | D | 365 | $19.64 | 21,651 | D | — | — | (F3) Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units. |
| 6 | Derivative | Restricted Stock Units | 2025-03-04 | M | D | 521 | $0.00 | 0 | D | — · — to — | 521 Common Stock | (F4) Each restricted stock unit represents a contingent right to receive one share of AMTM common stock. (F6) The restricted stock units awarded vested on March 4, 2025. |
| 7 | Derivative | Restricted Stock Units | 2025-03-03 | M | D | 1,230 | $0.00 | 2,808 | D | — · — to — | 1,230 Common Stock | (F4) Each restricted stock unit represents a contingent right to receive one share of AMTM common stock. (F5) The restricted stock units awarded vested on March 3, 2025. |