Arnette Stephen A
SEC insider (Form 3/4/5 filer). CIK 0001919492. Chief Operating Officer at Amentum Holdings, Inc. (AMTM) and 1 other issuer. 43 reported Form 4/5 transactions since Sep 2024; latest on May 6, 2026. Located in CHANTILLY, VA.
Companies Arnette Stephen A has filed insider reports for
- Amentum Holdings, Inc. (AMTM): Officer, Chief Operating Officer
- JACOBS SOLUTIONS INC. (J): Officer, EXECUTIVE VICE PRESIDENT
Arnette Stephen A
CIK: 0001919492
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (43 total)
- May 6, 2026AMTM
Amentum Holdings, Inc.
Tax PaymentDirect3.3K shares at avg. $24.89$82K - May 6, 2026AMTM
Amentum Holdings, Inc.
ExerciseDirect13.6K shares- - Mar 2, 2026AMTM
Amentum Holdings, Inc.
ExerciseDirect2.8K shares- - Mar 2, 2026AMTM
Amentum Holdings, Inc.
Tax PaymentDirect750 shares at avg. $30.70$23K - Nov 17, 2025AMTM
Amentum Holdings, Inc.
AwardDirect46.8K shares- - Nov 17, 2025AMTM
Amentum Holdings, Inc.
ExerciseDirect1.2K shares- - Nov 17, 2025AMTM
Amentum Holdings, Inc.
Tax PaymentDirect287 shares at avg. $21.49$6K - Nov 16, 2025AMTM
Amentum Holdings, Inc.
Tax PaymentDirect1.2K shares at avg. $22.07$27K - Nov 16, 2025AMTM
Amentum Holdings, Inc.
ExerciseDirect5.1K shares- - Nov 16, 2025AMTM
Amentum Holdings, Inc.
ExerciseDirect4.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 6, 2026 |  AMTM Amentum Holdings, Inc. | Tax Payment | 3,314 | $24.89 | $82,485 | Direct |
| May 6, 2026 | AMTM Amentum Holdings, Inc. | Exercise | 13,609 | - | $0 | Direct |
| Mar 2, 2026 | AMTM Amentum Holdings, Inc. | Exercise | 2,808 | - | $0 | Direct |
| Mar 2, 2026 | AMTM Amentum Holdings, Inc. | Tax Payment | 750 | $30.70 | $23,025 | Direct |
| Nov 17, 2025 | AMTM Amentum Holdings, Inc. | Award | 46,769 | - | - | Direct |
| Nov 17, 2025 | AMTM Amentum Holdings, Inc. | Exercise | 1,178 | - | - | Direct |
| Nov 17, 2025 | AMTM Amentum Holdings, Inc. | Tax Payment | 287 | $21.49 | $6,168 | Direct |
| Nov 16, 2025 | AMTM Amentum Holdings, Inc. | Tax Payment | 1,231 | $22.07 | $27,168 | Direct |
| Nov 16, 2025 | AMTM Amentum Holdings, Inc. | Exercise | 5,053 | - | - | Direct |
| Nov 16, 2025 | AMTM Amentum Holdings, Inc. | Exercise | 4,596 | - | - | Direct |
1-10 of 43 transactions