Amentum Holdings, Inc. insider transactions
Published Form 4 ownership transactions for AMTM.
| Date | Insider | Code | Shares | Price | Filing |
|---|---|---|---|---|---|
| 2026-05-06 | Heller John E. | M / A | 18,145 | - | 4 |
| 2026-05-06 | Heller John E. | F / D | 8,184 | 24.89 | 4 |
| 2026-05-06 | Mullen Sean Thomas | M / A | 9,072 | - | 4 |
| 2026-05-06 | Mullen Sean Thomas | F / D | 2,762 | 24.89 | 4 |
| 2026-05-06 | Johnson Travis Barton | M / A | 13,609 | - | 4 |
| 2026-05-06 | Johnson Travis Barton | F / D | 4,097 | 24.89 | 4 |
| 2026-05-06 | Bruning Jill L | M / A | 9,072 | - | 4 |
| 2026-05-06 | Bruning Jill L | F / D | 2,731 | 24.89 | 4 |
| 2026-05-06 | Arnette Stephen A | M / A | 13,609 | - | 4 |
| 2026-05-06 | Arnette Stephen A | F / D | 3,314 | 24.89 | 4 |
| 2026-03-04 | Bruning Jill L | G / D | 30,000 | 0 | 4 |
| 2026-03-02 | Arnette Stephen A | M / A | 2,808 | - | 4 |
| 2026-03-02 | Arnette Stephen A | F / D | 750 | 30.7 | 4 |
| 2026-02-17 | St. Mary Michele T | F / D | 2,308 | 30.05 | 4 |
| 2026-02-17 | St. Mary Michele T | M / A | 7,080 | - | 4 |
| 2026-02-06 | IRELAND SUSAN LESLIE | A / A | 5,062 | 0 | 4 |
| 2026-02-06 | Rowland Sandra E. | M / A | 11,564 | - | 4 |
| 2026-02-06 | Rowland Sandra E. | A / A | 5,062 | 0 | 4 |
| 2026-02-06 | Brooks Vincent K | M / A | 11,564 | - | 4 |
| 2026-02-06 | Brooks Vincent K | A / A | 5,062 | 0 | 4 |
| 2026-02-06 | EBERHART RALPH E | M / A | 11,564 | - | 4 |
| 2026-02-06 | EBERHART RALPH E | A / A | 5,062 | 0 | 4 |
| 2026-02-06 | Loughran Barbara | A / A | 5,062 | 0 | 4 |
| 2026-02-06 | Thompson Christopher M.T. | A / A | 5,062 | 0 | 4 |
| 2026-02-06 | Vollmer John C. | M / A | 11,564 | - | 4 |
| 2026-02-06 | Vollmer John C. | A / A | 5,062 | 0 | 4 |
| 2026-01-28 | Heller John E. | M / A | 51,979 | - | 4 |
| 2026-01-28 | Heller John E. | F / D | 19,768 | 35.71 | 4 |
| 2025-12-17 | Mullen Sean Thomas | F / D | 4,194 | 28.67 | 4 |
| 2025-12-17 | Mullen Sean Thomas | M / A | 9,298 | - | 4 |
| 2025-12-05 | Burton Darren | F / D | 1,392 | 28.88 | 4 |
| 2025-12-05 | Burton Darren | M / A | 2,721 | - | 4 |
| 2025-11-17 | Mullen Sean Thomas | A / A | 17,817 | 0 | 4 |
| 2025-11-17 | Heller John E. | A / A | 155,897 | 0 | 4 |
| 2025-11-17 | Bruning Jill L | A / A | 17,817 | 0 | 4 |
| 2025-11-17 | Burton Darren | A / A | 22,271 | 0 | 4 |
| 2025-11-17 | Johnson Travis Barton | A / A | 100,220 | 0 | 4 |
| 2025-11-17 | St. Mary Michele T | A / A | 22,271 | 0 | 4 |
| 2025-11-17 | Arnette Stephen A | M / A | 1,178 | - | 4 |
| 2025-11-17 | Arnette Stephen A | F / D | 287 | 21.49 | 4 |
| 2025-11-17 | Arnette Stephen A | A / A | 46,769 | 0 | 4 |
| 2025-11-17 | DEMETRIOU STEVEN J. | M / A | 43,396 | - | 4 |
| 2025-11-17 | DEMETRIOU STEVEN J. | F / D | 17,077 | 21.49 | 4 |
| 2025-11-17 | DEMETRIOU STEVEN J. | A / A | 111,355 | 0 | 4 |
| 2025-11-16 | Arnette Stephen A | F / D | 897 | 22.07 | 4 |
| 2025-11-16 | Arnette Stephen A | M / A | 3,681 | - | 4 |
| 2025-11-16 | Arnette Stephen A | F / D | 1,231 | 22.07 | 4 |
| 2025-11-16 | Arnette Stephen A | M / A | 4,596 | - | 4 |
| 2025-11-16 | Arnette Stephen A | F / D | 1,120 | 22.07 | 4 |
| 2025-11-16 | Arnette Stephen A | M / A | 5,053 | - | 4 |