Vollmer John C.
SEC insider (Form 3/4/5 filer). CIK 0001723342. Director at Amentum Holdings, Inc. (AMTM). 6 reported Form 4/5 transactions since Sep 2024; latest on Feb 6, 2026. Located in CHANTILLY, VA.
Companies Vollmer John C. has filed insider reports for
- Amentum Holdings, Inc. (AMTM): Director
Vollmer John C.
CIK: 0001723342
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Amentum Holdings, Inc.
Discretionary Trading P&L
Holdings
Transaction History (6 total)
- Feb 6, 2026AMTM
Amentum Holdings, Inc.
ExerciseDirect11.6K shares- - Feb 6, 2026AMTM
Amentum Holdings, Inc.
AwardDirect5.1K shares- - Apr 8, 2025AMTM
Amentum Holdings, Inc.
AwardDirectRestricted Stock Units
11.6K shares- - Mar 5, 2025AMTM
Amentum Holdings, Inc.
ExerciseDirect3.4K shares- - Dec 17, 2024AMTM
Amentum Holdings, Inc.
OtherDirect391.3K shares- - Nov 6, 2024AMTM
Amentum Holdings, Inc.
AwardDirectRestricted Stock Units
3.4K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Feb 6, 2026 | AMTM Amentum Holdings, Inc. | Exercise | 11,564 | - | $0 | Direct |
| Feb 6, 2026 | AMTM Amentum Holdings, Inc. | Award | 5,062 | - | $0 | Direct |
| Apr 8, 2025 | AMTM Amentum Holdings, Inc. | Award Restricted Stock Units | 11,564 | - | - | Direct |
| Mar 5, 2025 | AMTM Amentum Holdings, Inc. | Exercise | 3,447 | - | - | Direct |
| Dec 17, 2024 | AMTM Amentum Holdings, Inc. | Other | 391,341 | - | - | Direct |
| Nov 6, 2024 | AMTM Amentum Holdings, Inc. | Award Restricted Stock Units | 3,447 | - | - | Direct |
1-6 of 6 transactions