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
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2025-02-18 Purchase | 2025-02-20 4:32 pm | Amentum Holdings Inc. | AMTM | Loughran Barbara Director | 4,600 | $21.23 | $97,635 | 4,600 (Direct) | View |
2025-02-12 Purchase | 2025-02-14 6:18 pm | Amentum Holdings Inc. | AMTM | DEMETRIOU STEVEN J. Executive Chair | 100,000 | $20.81 | $2,080,700 | 1,165,336 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider 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. | AMTM | Lindsay 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 | $0 | 46,159,582 (Indirect) | View |
2025-05-08 Other | 2025-05-12 4:30 pm | N/A N/A | Amentum Holdings Inc. | AMTM | GOLDBERG ALAN E Director 10% Owner | 1,132,839 | $0 | 46,159,582 (Indirect) | View |
2025-05-08 Other | 2025-05-12 4:30 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Goldberg 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 | $0 | 46,159,582 (Indirect) | View |
2025-05-08 Other | 2025-05-12 09:07 am | N/A N/A | Amentum Holdings Inc. | AMTM | Amentum Joint Venture GP LLC Amentum Joint Venture LP Director | 2,433,022 | $0 | 2,433,022 (Indirect) | View |
2025-04-08 Option Award | 2025-04-10 4:41 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Vollmer John C. Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-08 Option Award | 2025-04-10 4:40 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Brooks Vincent K Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-08 Option Award | 2025-04-10 4:40 pm | N/A N/A | Amentum Holdings Inc. | AMTM | EBERHART RALPH E Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-08 Option Award | 2025-04-10 4:40 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Loughran Barbara Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-08 Option Award | 2025-04-10 4:40 pm | N/A N/A | Amentum Holdings Inc. | AMTM | IRELAND SUSAN LESLIE Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-08 Option Award | 2025-04-10 4:40 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Rowland Sandra E. Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-08 Option Award | 2025-04-10 4:40 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Thompson Christopher M.T. Director | 11,564 | $0 | 11,564 (Direct) | View |
2025-04-07 Option Award | 2025-04-08 5:47 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Amentum Joint Venture GP LLC Amentum Joint Venture LP Director | 2,433,022 | $0 | 2,433,022 (Indirect) | View |
2025-03-17 Option Award | 2025-03-19 4:37 pm | N/A N/A | Amentum Holdings Inc. | AMTM | St. Mary Michele T Chief Legal Officer & GC | 21,242 | $0 | 21,242 (Direct) | View |
2025-03-13 Other | 2025-03-17 8:25 pm | N/A N/A | Amentum Holdings Inc. | AMTM | JACOBS SOLUTIONS INC. JACOBS ENGINEERING GROUP INC 10% Owner | 19,464,174 | $0 | 19,464,174 (Indirect) | View |
2025-03-05 Exercise | 2025-03-07 4:39 pm | N/A N/A | Amentum Holdings Inc. | AMTM | IRELAND SUSAN LESLIE Director | 3,447 | $0 | 3,447 (Direct) | View |
2025-03-05 Exercise | 2025-03-07 4:39 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Vollmer John C. Director | 3,447 | $0 | 786,129 (Direct) | View |
2024-12-17 Other | 2025-03-07 4:39 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Vollmer John C. Director | 391,341 | $0 | 786,129 (Direct) | View |
2025-03-05 Exercise | 2025-03-07 4:38 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Brooks Vincent K Director | 3,447 | $0 | 17,379 (Direct) | View |
2024-09-18 Other | 2025-03-07 4:38 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Brooks Vincent K Director | 6,966 | $0 | 17,379 (Direct) | View |
2025-03-05 Exercise | 2025-03-07 4:38 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Rowland Sandra E. Director | 3,447 | $0 | 3,447 (Direct) | View |
2025-03-05 Exercise | 2025-03-07 4:38 pm | N/A N/A | Amentum Holdings Inc. | AMTM | EBERHART RALPH E Director | 3,447 | $0 | 56,325 (Direct) | View |
2024-09-18 Other | 2025-03-07 4:38 pm | N/A N/A | Amentum Holdings Inc. | AMTM | EBERHART RALPH E Director | 26,439 | $0 | 56,325 (Direct) | View |
2025-03-03 Exercise | 2025-03-05 4:35 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Arnette Stephen A Chief Operating Officer | 1,751 | $0 | 45,614 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-05 4:35 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Arnette Stephen A Chief Operating Officer | 365 | $19.64 | 45,614 (Direct) | View |
2025-03-04 Tax Withholding | 2025-03-05 4:35 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Arnette Stephen A Chief Operating Officer | 152 | $18.71 | 45,614 (Direct) | View |
2024-09-18 Other | 2025-03-05 4:35 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Arnette Stephen A Chief Operating Officer | 20,786 | $0 | 45,614 (Direct) | View |
2024-09-18 Other | 2025-02-14 6:18 pm | N/A N/A | Amentum Holdings Inc. | AMTM | DEMETRIOU STEVEN J. Executive Chair | 520,893 | $0 | 1,165,336 (Direct) | View |
2025-01-28 Option Award | 2025-01-30 4:24 pm | N/A 2029-01-28 | Amentum Holdings Inc. | AMTM | Heller John E. Chief Executive Officer | 1,529,893 | $0 | 1,713,481 (Direct) | View |
2024-12-17 Other | 2025-01-30 4:24 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Heller John E. Chief Executive Officer | 91,794 | $0 | 1,713,481 (Direct) | View |
Ownership(A) | 2024-12-30 5:34 pm | N/A N/A | Amentum Holdings Inc. | AMTM | ASP Amentum Investco LP ASP Manager Corp. AMERICAN SECURITIES LLC 10% Owner | 0 | $0 | 43,893,904 (Direct) | View |
Ownership | 2024-12-27 6:11 pm | N/A N/A | Amentum Holdings Inc. | AMTM | ASP Manager Corp. AMERICAN SECURITIES LLC 10% Owner | 0 | $0 | 43,893,904 (Indirect) | View |
2024-12-17 Other | 2024-12-27 4:31 pm | N/A N/A | Amentum Holdings Inc. | AMTM | GOLDBERG ALAN E Director 10% Owner | 43,893,904 | $0 | 87,787,808 (Indirect) | View |
Ownership | 2024-12-27 4:30 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Goldberg 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 | $0 | 43,893,904 (Indirect) | View |
Ownership | 2024-12-27 4:30 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Lindsay 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 | $0 | 43,893,904 (Indirect) | View |
2024-12-20 Option Award | 2024-12-23 5:55 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Mullen Sean Thomas Chief Growth Officer | 9,298 | $0 | 9,298 (Direct) | View |
2024-12-17 Other | 2024-12-19 6:10 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Amentum Joint Venture GP LLC Amentum Joint Venture LP Director 10% Owner | 90,021,804 | $0 | 90,021,804 (Indirect) | View |
2024-12-05 Option Award | 2024-12-09 4:06 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Burton Darren Chief People Officer | 8,165 | $0 | 8,165 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:22 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Heller John E. Chief Executive Officer | 155,144 | $0 | 155,144 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:16 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Loughran Barbara Director | 3,447 | $0 | 3,447 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:16 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Young Stuart Ira Chief Legal Officer | 3,629 | $0 | 3,629 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:16 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Mullen Sean Thomas Chief Growth Officer | 32,661 | $0 | 32,661 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:11 pm | N/A N/A | Amentum Holdings Inc. | AMTM | DEMETRIOU STEVEN J. Executive Chair | 90,727 | $0 | 90,727 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:11 pm | N/A N/A | Amentum Holdings Inc. | AMTM | Thompson Christopher M.T. Director | 3,447 | $0 | 3,447 (Direct) | View |
2024-11-06 Option Award | 2024-11-08 4:10 pm | N/A N/A | Amentum Holdings Inc. | AMTM | EBERHART RALPH E Director | 3,447 | $0 | 3,447 (Direct) | View |