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

List of insiders holdings for Amentum Holdings Inc.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. 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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#Insider Holder NameReport
Date Time		Shares Owned
Directly
Indirectly		Total
Shares Owned		Filing
1Lindsay 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		2025-05-12 16:30:190
46,159,582		46,159,582Form 4
2GOLDBERG ALAN E
Director
10% Owner		2025-05-12 16:30:160
46,159,582		46,159,582Form 4
3Goldberg 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		2025-05-12 16:30:140
46,159,582		46,159,582Form 4
4ASP Amentum Investco LP
ASP Manager Corp.
AMERICAN SECURITIES LLC
10% Owner		2024-12-30 17:34:2643,893,904
0		43,893,904Form 3/A
5JACOBS SOLUTIONS INC.
JACOBS ENGINEERING GROUP INC
10% Owner		2025-03-17 20:25:300
19,464,174		19,464,174Form 4
6Amentum Joint Venture GP LLC
Amentum Joint Venture LP
Director		2025-05-12 09:07:420
2,433,022		2,433,022Form 4
7DEMETRIOU STEVEN J.
Executive Chair		2025-11-19 17:25:09820,476
23,550		844,026Form 4
8Heller John E.
Chief Executive Officer		2025-12-19 18:49:09333,847
0		333,847Form 4/A
9Bruning Jill L
Chief Technology Officer		2025-12-19 18:47:14220,999
0		220,999Form 4/A
10Johnson Travis Barton
Chief Financial Officer		2025-11-19 17:45:40108,675
0		108,675Form 4
11Arnette Stephen A
Chief Operating Officer		2025-12-19 18:45:2094,299
0		94,299Form 4/A
12Burton Darren
Chief People Officer		2025-12-09 16:28:4229,044
0		29,044Form 4
13Mullen Sean Thomas
Chief Growth Officer		2025-12-19 16:19:0426,138
0		26,138Form 4
14St. Mary Michele T
Chief Legal Officer & GC		2025-11-19 17:40:0722,271
0		22,271Form 4
15EBERHART RALPH E
Director		2025-04-10 16:40:4911,564
0		11,564Form 4
16Vollmer John C.
Director		2025-04-10 16:41:0911,564
0		11,564Form 4
17Brooks Vincent K
Director		2025-04-10 16:40:5811,564
0		11,564Form 4
18Loughran Barbara
Director		2025-04-10 16:40:3811,564
0		11,564Form 4
19IRELAND SUSAN LESLIE
Director		2025-04-10 16:40:2811,564
0		11,564Form 4
20Rowland Sandra E.
Director		2025-04-10 16:40:1811,564
0		11,564Form 4
21Thompson Christopher M.T.
Director		2025-04-10 16:40:0711,564
0		11,564Form 4
22Young Stuart Ira
Chief Legal Officer		2024-11-08 16:16:493,629
0		3,629Form 4
23Hsu Chin Chang
Treasurer		2024-09-18 16:48:310
0		0Form 3
24Triedman J Russell
Director		2024-09-27 16:57:410
0		0Form 3
25Wentzell Connor
Director		2024-09-27 14:54:380
0		0Form 3
26Dickson Benjamin Buhl
Director		2024-09-27 14:50:550
0		0Form 3
27PRAGADA ROBERT V
Chief Executive Officer		2024-09-18 16:53:230
0		0Form 3
28Berryman Kevin C
Chief Financial Officer		2024-09-18 16:49:500
0		0Form 3
29Johnson Justin C
Secretary		2024-09-18 16:49:310
0		0Form 3