John E. Heller

CIK: 0001552715

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)3 (25.0%)

Derivative conversions

Awards (A)5 (41.7%)

Compensation grants

Other (G, F, J, C, D, …)4 (33.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AMTM

Amentum Holdings, Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (12 total)

AMTM
Amentum Holdings, Inc.
May 6, 2026
Exercise(M)
Direct
18.1K shares-
AMTM
Amentum Holdings, Inc.
May 6, 2026
Tax Payment(F)
Direct
8.2K shares at avg. $24.89$204K
AMTM
Amentum Holdings, Inc.
Jan 28, 2026
Tax Payment(F)
Direct
19.8K shares at avg. $35.71$706K
AMTM
Amentum Holdings, Inc.
Jan 28, 2026
Exercise(M)
Direct
52K shares-
AMTM
Amentum Holdings, Inc.
Nov 17, 2025
Award(A)
Direct
155.9K shares-
AMTM
Amentum Holdings, Inc.
Nov 6, 2025
Exercise(M)
Direct
39.6K shares-
AMTM
Amentum Holdings, Inc.
Nov 6, 2025
Tax Payment(F)
Direct
17.9K shares at avg. $21.79$389K
AMTM
Amentum Holdings, Inc.
Jan 28, 2025
Award(A)
Stock Option
Direct
1.4M shares-
AMTM
Amentum Holdings, Inc.
Jan 28, 2025
Award(A)
Restricted Stock Units
Direct
155.9K shares-
AMTM
Amentum Holdings, Inc.
Dec 17, 2024
Other(J)
Direct
91.8K shares-
AMTM
Amentum Holdings, Inc.
Nov 6, 2024
Award(A)
Restricted Stock Units
Direct
36.3K shares-
AMTM
Amentum Holdings, Inc.
Nov 6, 2024
Award(A)
Restricted Stock Units
Direct
118.9K shares-

		Type	Shares	Price		Ownership
May 6, 2026	AMTM Amentum Holdings, Inc.	Exercise(M)	18,145	-	$0	Direct
May 6, 2026	AMTM Amentum Holdings, Inc.	Tax Payment(F)	8,184	$24.89	$203,700	Direct
Jan 28, 2026	AMTM Amentum Holdings, Inc.	Tax Payment(F)	19,768	$35.71	$705,915	Direct
Jan 28, 2026	AMTM Amentum Holdings, Inc.	Exercise(M)	51,979	-	$0	Direct
Nov 17, 2025	AMTM Amentum Holdings, Inc.	Award(A)	155,897	-	-	Direct
Nov 6, 2025	AMTM Amentum Holdings, Inc.	Exercise(M)	39,617	-	-	Direct
Nov 6, 2025	AMTM Amentum Holdings, Inc.	Tax Payment(F)	17,868	$21.79	$389,344	Direct
Jan 28, 2025	AMTM Amentum Holdings, Inc.	Award(A) Stock Option	1,373,955	-	-	Direct
Jan 28, 2025	AMTM Amentum Holdings, Inc.	Award(A) Restricted Stock Units	155,938	-	-	Direct
Dec 17, 2024	AMTM Amentum Holdings, Inc.	Other(J)	91,794	-	$0	Direct
Nov 6, 2024	AMTM Amentum Holdings, Inc.	Award(A) Restricted Stock Units	36,291	-	-	Direct
Nov 6, 2024	AMTM Amentum Holdings, Inc.	Award(A) Restricted Stock Units	118,853	-	-	Direct

1-12 of 12 transactions

About Heller John E.

Heller John E. (SEC CIK 0001552715) files insider reports with the SEC as Chief Executive Officer of Amentum Holdings, Inc. (AMTM).

Signal8 holds 8 ownership filings by Heller John E. (1 Form 3, 7 Form 4), filed between Sep 27, 2024 and May 7, 2026. Those filings report 12 transactions, from Nov 6, 2024 to May 6, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Heller John E.'s filings is in CHANTILLY, VA.

Recent filings by Heller John E.

May 6, 2026: Option exercise of AMTM shares (Form 4, code M).
May 6, 2026: Tax withholding of AMTM shares (Form 4, code F).
Jan 28, 2026: Tax withholding of AMTM shares (Form 4, code F).
Jan 28, 2026: Option exercise of AMTM shares (Form 4, code M).
Nov 17, 2025: Grant or award of AMTM shares (Form 4, code A).

Other insiders filing for Amentum Holdings, Inc. (AMTM)

Thompson Christopher M.T., Director
Mullen Sean Thomas, Chief Growth Officer
Johnson Travis Barton, Chief Financial Officer
Bruning Jill L, Chief Technology Officer
Arnette Stephen A, Chief Operating Officer
St. Mary Michele T, Chief Legal Officer & GC

How to read Form 4 transaction codes