Insider Trading & Ownership - Amentum Holdings Inc. (AMTM)

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
Insider Trading Transactions for Amentum Holdings Inc.
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Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2025-02-18
Purchase
2025-02-20
4:32 pm
Amentum Holdings Inc.AMTMLoughran Barbara
Director
4,600$21.23$97,6354,600
(Direct)
View
2025-02-12
Purchase
2025-02-14
6:18 pm
Amentum Holdings Inc.AMTMDEMETRIOU STEVEN J.
Executive Chair
100,000$20.81$2,080,7001,165,336
(Indirect
Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2025-05-08
Other
2025-05-12
4:30 pm
N/A
N/A
Amentum Holdings Inc.AMTMLindsay Goldberg Employee Co-Inv. IV L.P.
LG Co-Inv. A L.P.
Lindsay Goldberg V L.P.
Lindsay Goldberg Maverick Co-Inv. L.P.
LG Amentum Holdings GP LLC
LG Amentum Holdings LP
10% Owner
1,132,839$046,159,582
(Indirect)
View
2025-05-08
Other
2025-05-12
4:30 pm
N/A
N/A
Amentum Holdings Inc.AMTMGOLDBERG ALAN E
Director
10% Owner
1,132,839$046,159,582
(Indirect)
View
2025-05-08
Other
2025-05-12
4:30 pm
N/A
N/A
Amentum Holdings Inc.AMTMGoldberg 2014 LLC
Goldberg 2020 LLC
LG GP Holding IV LLC
LG GP Holding V LLC
Lindsay Goldberg GP IV LLC
Lindsay Goldberg GP V LLC
Lindsay Goldberg IV L.P.
Lindsay Goldberg IV - A L.P.
Lindsay Goldberg IV - PCF L.P.
Lindsay Goldberg Co-Inv. IV L.P.
10% Owner
1,132,839$046,159,582
(Indirect)
View
2025-05-08
Other
2025-05-12
09:07 am
N/A
N/A
Amentum Holdings Inc.AMTMAmentum Joint Venture GP LLC
Amentum Joint Venture LP
Director
2,433,022$02,433,022
(Indirect)
View
2025-04-08
Option Award
2025-04-10
4:41 pm
N/A
N/A
Amentum Holdings Inc.AMTMVollmer John C.
Director
11,564$011,564
(Direct)
View
2025-04-08
Option Award
2025-04-10
4:40 pm
N/A
N/A
Amentum Holdings Inc.AMTMBrooks Vincent K
Director
11,564$011,564
(Direct)
View
2025-04-08
Option Award
2025-04-10
4:40 pm
N/A
N/A
Amentum Holdings Inc.AMTMEBERHART RALPH E
Director
11,564$011,564
(Direct)
View
2025-04-08
Option Award
2025-04-10
4:40 pm
N/A
N/A
Amentum Holdings Inc.AMTMLoughran Barbara
Director
11,564$011,564
(Direct)
View
2025-04-08
Option Award
2025-04-10
4:40 pm
N/A
N/A
Amentum Holdings Inc.AMTMIRELAND SUSAN LESLIE
Director
11,564$011,564
(Direct)
View
2025-04-08
Option Award
2025-04-10
4:40 pm
N/A
N/A
Amentum Holdings Inc.AMTMRowland Sandra E.
Director
11,564$011,564
(Direct)
View
2025-04-08
Option Award
2025-04-10
4:40 pm
N/A
N/A
Amentum Holdings Inc.AMTMThompson Christopher M.T.
Director
11,564$011,564
(Direct)
View
2025-04-07
Option Award
2025-04-08
5:47 pm
N/A
N/A
Amentum Holdings Inc.AMTMAmentum Joint Venture GP LLC
Amentum Joint Venture LP
Director
2,433,022$02,433,022
(Indirect)
View
2025-03-17
Option Award
2025-03-19
4:37 pm
N/A
N/A
Amentum Holdings Inc.AMTMSt. Mary Michele T
Chief Legal Officer & GC
21,242$021,242
(Direct)
View
2025-03-13
Other
2025-03-17
8:25 pm
N/A
N/A
Amentum Holdings Inc.AMTMJACOBS SOLUTIONS INC.
JACOBS ENGINEERING GROUP INC
10% Owner
19,464,174$019,464,174
(Indirect)
View
2025-03-05
Exercise
2025-03-07
4:39 pm
N/A
N/A
Amentum Holdings Inc.AMTMIRELAND SUSAN LESLIE
Director
3,447$03,447
(Direct)
View
2025-03-05
Exercise
2025-03-07
4:39 pm
N/A
N/A
Amentum Holdings Inc.AMTMVollmer John C.
Director
3,447$0786,129
(Direct)
View
2024-12-17
Other
2025-03-07
4:39 pm
N/A
N/A
Amentum Holdings Inc.AMTMVollmer John C.
Director
391,341$0786,129
(Direct)
View
2025-03-05
Exercise
2025-03-07
4:38 pm
N/A
N/A
Amentum Holdings Inc.AMTMBrooks Vincent K
Director
3,447$017,379
(Direct)
View
2024-09-18
Other
2025-03-07
4:38 pm
N/A
N/A
Amentum Holdings Inc.AMTMBrooks Vincent K
Director
6,966$017,379
(Direct)
View
2025-03-05
Exercise
2025-03-07
4:38 pm
N/A
N/A
Amentum Holdings Inc.AMTMRowland Sandra E.
Director
3,447$03,447
(Direct)
View
2025-03-05
Exercise
2025-03-07
4:38 pm
N/A
N/A
Amentum Holdings Inc.AMTMEBERHART RALPH E
Director
3,447$056,325
(Direct)
View
2024-09-18
Other
2025-03-07
4:38 pm
N/A
N/A
Amentum Holdings Inc.AMTMEBERHART RALPH E
Director
26,439$056,325
(Direct)
View
2025-03-03
Exercise
2025-03-05
4:35 pm
N/A
N/A
Amentum Holdings Inc.AMTMArnette Stephen A
Chief Operating Officer
1,751$045,614
(Direct)
View
2025-03-03
Tax Withholding
2025-03-05
4:35 pm
N/A
N/A
Amentum Holdings Inc.AMTMArnette Stephen A
Chief Operating Officer
365$19.6445,614
(Direct)
View
2025-03-04
Tax Withholding
2025-03-05
4:35 pm
N/A
N/A
Amentum Holdings Inc.AMTMArnette Stephen A
Chief Operating Officer
152$18.7145,614
(Direct)
View
2024-09-18
Other
2025-03-05
4:35 pm
N/A
N/A
Amentum Holdings Inc.AMTMArnette Stephen A
Chief Operating Officer
20,786$045,614
(Direct)
View
2024-09-18
Other
2025-02-14
6:18 pm
N/A
N/A
Amentum Holdings Inc.AMTMDEMETRIOU STEVEN J.
Executive Chair
520,893$01,165,336
(Direct)
View
2025-01-28
Option Award
2025-01-30
4:24 pm
N/A
2029-01-28
Amentum Holdings Inc.AMTMHeller John E.
Chief Executive Officer
1,529,893$01,713,481
(Direct)
View
2024-12-17
Other
2025-01-30
4:24 pm
N/A
N/A
Amentum Holdings Inc.AMTMHeller John E.
Chief Executive Officer
91,794$01,713,481
(Direct)
View

Ownership(A)
2024-12-30
5:34 pm
N/A
N/A
Amentum Holdings Inc.AMTMASP Amentum Investco LP
ASP Manager Corp.
AMERICAN SECURITIES LLC
10% Owner
0$043,893,904
(Direct)
View

Ownership
2024-12-27
6:11 pm
N/A
N/A
Amentum Holdings Inc.AMTMASP Manager Corp.
AMERICAN SECURITIES LLC
10% Owner
0$043,893,904
(Indirect)
View
2024-12-17
Other
2024-12-27
4:31 pm
N/A
N/A
Amentum Holdings Inc.AMTMGOLDBERG ALAN E
Director
10% Owner
43,893,904$087,787,808
(Indirect)
View

Ownership
2024-12-27
4:30 pm
N/A
N/A
Amentum Holdings Inc.AMTMGoldberg 2014 LLC
Goldberg 2020 LLC
LG GP Holding IV LLC
LG GP Holding V LLC
Lindsay Goldberg GP IV LLC
Lindsay Goldberg GP V LLC
Lindsay Goldberg IV L.P.
Lindsay Goldberg IV - A L.P.
Lindsay Goldberg IV - PCF L.P.
Lindsay Goldberg Co-Inv. IV L.P.
10% Owner
0$043,893,904
(Indirect)
View

Ownership
2024-12-27
4:30 pm
N/A
N/A
Amentum Holdings Inc.AMTMLindsay Goldberg Employee Co-Inv. IV L.P.
LG Co-Inv. A L.P.
Lindsay Goldberg V L.P.
Lindsay Goldberg Maverick Co-Inv. L.P.
LG Amentum Holdings GP LLC
LG Amentum Holdings LP
10% Owner
0$043,893,904
(Indirect)
View
2024-12-20
Option Award
2024-12-23
5:55 pm
N/A
N/A
Amentum Holdings Inc.AMTMMullen Sean Thomas
Chief Growth Officer
9,298$09,298
(Direct)
View
2024-12-17
Other
2024-12-19
6:10 pm
N/A
N/A
Amentum Holdings Inc.AMTMAmentum Joint Venture GP LLC
Amentum Joint Venture LP
Director
10% Owner
90,021,804$090,021,804
(Indirect)
View
2024-12-05
Option Award
2024-12-09
4:06 pm
N/A
N/A
Amentum Holdings Inc.AMTMBurton Darren
Chief People Officer
8,165$08,165
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:22 pm
N/A
N/A
Amentum Holdings Inc.AMTMHeller John E.
Chief Executive Officer
155,144$0155,144
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:16 pm
N/A
N/A
Amentum Holdings Inc.AMTMLoughran Barbara
Director
3,447$03,447
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:16 pm
N/A
N/A
Amentum Holdings Inc.AMTMYoung Stuart Ira
Chief Legal Officer
3,629$03,629
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:16 pm
N/A
N/A
Amentum Holdings Inc.AMTMMullen Sean Thomas
Chief Growth Officer
32,661$032,661
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:11 pm
N/A
N/A
Amentum Holdings Inc.AMTMDEMETRIOU STEVEN J.
Executive Chair
90,727$090,727
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:11 pm
N/A
N/A
Amentum Holdings Inc.AMTMThompson Christopher M.T.
Director
3,447$03,447
(Direct)
View
2024-11-06
Option Award
2024-11-08
4:10 pm
N/A
N/A
Amentum Holdings Inc.AMTMEBERHART RALPH E
Director
3,447$03,447
(Direct)
View
(A) Indicate amendment filing.
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