AMENTUM HOLDINGS INC (AMTM) Stock Ownership and Short Interest
USA - New York Stock Exchange - NYSE:AMTM - US0239391016 - Common Stock
28.63 USD
-0.7 (-2.39%)
28.63 USD
0 (0%)
| Shares Outstanding | 243.33M |
| Float | 151.21M |
| Float Short Interest Percentage | 6.42% |
| Owners (insider) | 0.56% |
| Owners (institutional) | 66.11% |
| Owners (insider) change | 35.3% |
| Owners (institutional) change | 0.3% |
Insider Transactions
Top Institutional Holders
Insider Owners
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Nov 17, 2025 | DEMETRIOU STEVEN J. | Option Excercise | 43396 | $ 0.00 | |
| Nov 17, 2025 | DEMETRIOU STEVEN J. | Option Excercise | 17077 | 21.49 | $ 366,984.73 |
| Nov 17, 2025 | DEMETRIOU STEVEN J. | Grant | 111355 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Johnson Travis Barton | Grant | 100220 | 0.00 | $ 0.00 |
| Nov 17, 2025 | St. Mary Michele T | Grant | 22271 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Arnette Stephen A | Option Excercise | 1178 | $ 0.00 | |
| Nov 17, 2025 | Arnette Stephen A | Option Excercise | 287 | 21.49 | $ 6,167.63 |
| Nov 17, 2025 | Arnette Stephen A | Grant | 46769 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Mullen Sean Thomas | Grant | 17817 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Bruning Jill L | Grant | 17817 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Burton Darren | Grant | 22271 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Heller John E. | Grant | 155897 | 0.00 | $ 0.00 |
| Nov 15, 2025 | Arnette Stephen A | Option Excercise | 4651 | 22.07 | $ 102,647.57 |
| Nov 15, 2025 | Arnette Stephen A | Option Excercise | 19088 | $ 0.00 | |
| Nov 6, 2025 | Arnette Stephen A | Option Excercise | 12701 | $ 0.00 | |
| Nov 6, 2025 | Arnette Stephen A | Option Excercise | 3093 | 21.79 | $ 67,396.47 |
| Nov 6, 2025 | Johnson Travis Barton | Option Excercise | 12097 | $ 0.00 | |
| Nov 6, 2025 | Johnson Travis Barton | Option Excercise | 3642 | 21.79 | $ 79,359.18 |
| Nov 6, 2025 | Bruning Jill L | Option Excercise | 4838 | $ 0.00 | |
| Nov 6, 2025 | Bruning Jill L | Option Excercise | 1457 | 21.79 | $ 31,748.03 |
| Nov 6, 2025 | Heller John E. | Option Excercise | 39617 | $ 0.00 | |
| Nov 6, 2025 | Heller John E. | Option Excercise | 17868 | 21.79 | $ 389,343.72 |
| Nov 6, 2025 | Mullen Sean Thomas | Option Excercise | 4838 | $ 0.00 | |
| Nov 6, 2025 | Mullen Sean Thomas | Option Excercise | 1621 | 21.79 | $ 35,321.59 |
| Nov 6, 2025 | DEMETRIOU STEVEN J. | Option Excercise | 90727 | $ 0.00 | |
| Nov 6, 2025 | DEMETRIOU STEVEN J. | Option Excercise | 28818 | 21.79 | $ 627,944.22 |
| May 8, 2025 | Amentum Joint Venture GP LLC | Other Disposition | 2433022 | 0.00 | $ 0.00 |
| May 8, 2025 | Amentum Joint Venture LP | Other Disposition | 2433022 | 0.00 | $ 0.00 |
| May 8, 2025 | Lindsay Goldberg Employee Co-Inv. IV L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | LG Co-Inv. A L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg V L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg Maverick Co-Inv. L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | LG Amentum Holdings GP LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | LG Amentum Holdings LP | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | GOLDBERG ALAN E | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Goldberg 2014 LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Goldberg 2020 LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | LG GP Holding IV LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | LG GP Holding V LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg GP IV LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg GP V LLC | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg IV L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg IV - A L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg IV - PCF L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| May 8, 2025 | Lindsay Goldberg Co-Inv. IV L.P. | Other Aquisition | 1132839 | $ 0.00 | |
| Apr 7, 2025 | Amentum Joint Venture GP LLC | Grant | 2433022 | 0.00 | $ 0.00 |
| Apr 7, 2025 | Amentum Joint Venture LP | Grant | 2433022 | 0.00 | $ 0.00 |
| Mar 13, 2025 | JACOBS SOLUTIONS INC. | Other Disposition | 19464174 | $ 0.00 | |
| Mar 13, 2025 | JACOBS ENGINEERING GROUP INC /DE/ | Other Disposition | 19464174 | $ 0.00 | |
| Mar 5, 2025 | IRELAND SUSAN LESLIE | Option Excercise | 3447 | $ 0.00 | |
| Mar 5, 2025 | Vollmer John C. | Option Excercise | 3447 | $ 0.00 | |
| Mar 5, 2025 | Brooks Vincent K | Option Excercise | 3447 | $ 0.00 | |
| Mar 5, 2025 | Rowland Sandra E. | Option Excercise | 3447 | $ 0.00 | |
| Mar 5, 2025 | EBERHART RALPH E | Option Excercise | 3447 | $ 0.00 | |
| Mar 3, 2025 | Arnette Stephen A | Option Excercise | 1751 | $ 0.00 | |
| Mar 3, 2025 | Arnette Stephen A | Option Excercise | 517 | 19.37 | $ 10,012.52 |
| Feb 18, 2025 | Loughran Barbara | Open Market Purchase | 4600 | 21.23 | $ 97,635.00 |
| Feb 12, 2025 | DEMETRIOU STEVEN J. | Open Market Purchase | 100000 | 20.81 | $ 2,080,700.00 |
| Dec 17, 2024 | Amentum Joint Venture GP LLC | Other Disposition | 90021804 | 0.00 | $ 0.00 |
| Dec 17, 2024 | Amentum Joint Venture LP | Other Disposition | 90021804 | 0.00 | $ 0.00 |