Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 023939101 since 12/18/2024, largest first.
| Filer | % of Class | Filed | ||
|---|---|---|---|---|
|
ASP Manager Corp.
13D
|
18.0% |
12/23/2024
Event 12/17/2024
|
||
| ASP Amentum Investco LP | 18.0% | |||
| ASP Manager Corp. | 18.0% | |||
| American Securities LLC | 18.0% | |||
|
Alan E. Goldberg
13D
|
18.0% |
12/23/2024
Event 12/17/2024
|
||
| Alan E. Goldberg | 18.0% | |||
| Goldberg 2014 LLC | 18.0% | |||
| Goldberg 2020 LLC | 18.0% | |||
| LG GP Holding IV LLC | 18.0% | |||
| LG GP Holding V LLC | 18.0% | |||
| Lindsay Goldberg GP IV LLC | 18.0% | |||
| Lindsay Goldberg GP V LLC | 18.0% | |||
| Lindsay Goldberg IV L.P. | 18.0% | |||
| Lindsay Goldberg IV - A L.P. | 18.0% | |||
| Lindsay Goldberg IV - PCF L.P. | 18.0% | |||
| Lindsay Goldberg Co-Inv. IV L.P. | 18.0% | |||
| Lindsay Goldberg Employee Co-Inv. IV L.P. | 18.0% | |||
| LG Co-Inv. A L.P. | 18.0% | |||
| Lindsay Goldberg V L.P. | 18.0% | |||
| Lindsay Goldberg Maverick Co-Inv. L.P. | 18.0% | |||
| LG Amentum Holdings GP LLC | 18.0% | |||
| LG Amentum Holdings LP | 18.0% | |||
| Invesco Ltd. 13G/A | 10.1% |
5/7/2026
Event 4/30/2026
|
||
| BlackRock, Inc. 13G/A | 6.9% |
2/5/2025
Event 12/31/2024
|
||
| Primecap Management Co/CA/ 13G | 5.0% |
8/6/2026
Event 6/30/2026
|
||
| Under 5%, checked the "5 percent or less" box, or amended by a later filing (3) | ||||
|
Amentum Joint Venture LP
13D/A
|
0% |
12/19/2024
Event 12/17/2024
|
||
| Amentum Joint Venture LP | 0% | |||
| Amentum Joint Venture GP LLC | 0% | |||
|
Jacobs Solutions Inc.
13G/A
|
0% |
3/13/2025
Event 3/13/2025
|
||
| Jacobs Solutions Inc. | 0% | |||
| Jacobs Engineering Group Inc. | 0% | |||
| Vanguard Group Inc 13G/A | 0% |
3/26/2026
Event 3/13/2026
|
||
| Period | Filings | Shares, Excl. Options | Value, Excl. Options |
|---|---|---|---|
| 2026 Q3 | 57 | 2.32 M | $41.6 M |
| 2026 Q2 | 491 | 223 M | $4.53 B |
| 2026 Q1 | 516 | 211 M | $5.28 B |
| 2025 Q4 | 508 | 204 M | $5.64 B |
| 2025 Q3 | 483 | 194 M | $4.63 B |
| 2025 Q2 | 491 | 201 M | $4.74 B |
| 2025 Q1 | 448 | 192 M | $3.50 B |
| 2024 Q4 | 480 | 181 M | $3.81 B |
| 2024 Q3 | 507 | 101 M | $3.26 B |