CIK 0002011286 · Large accelerated filer
Amentum Holdings, Inc.
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- AMTM
- Exchange
- NYSE
- Industry
- Services-Business Services, NEC
- FY end
- Oct 2
- Incorporated
- DE
- Entity type
- operating
- EIN
- 990622272
- Phone
- 7035790410
- Business address
- 4800 WESTFIELDS BOULEVARD, SUITE 400, CHANTILLY, VA, 20151
- Former names
- Amazon Holdco Inc.
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2025-12-05 | Burton Darren Chief People Officer | Shares withheld for taxes | −1,392 | $28.88 | $40K | 23,600 |
| 2025-12-05 | Burton Darren Chief People Officer | Option exercise · Restricted Stock Units | −2,721 | 5,444 | ||
| 2025-11-17 | Mullen Sean Thomas Chief Growth Officer | Grant or award | +17,817 | 21,034 | ||
| 2025-11-17 | Heller John E. Chief Executive Officer | Grant or award | +155,897 | 269,440 | ||
| 2025-11-17 | Bruning Jill L Chief Technology Officer | Grant or award | +17,817 | 21,198 | ||
| 2025-11-17 | Burton Darren Chief People Officer | Grant or award | +22,271 | 22,271 | ||
| 2025-11-17 | Johnson Travis Barton Chief Financial Officer | Grant or award | +100,220 | 108,675 | ||
| 2025-11-17 | St. Mary Michele T Chief Legal Officer & GC | Grant or award | +22,271 | 22,271 | ||
| 2025-11-17 | Arnette Stephen A Chief Operating Officer | Option exercise | +1,178 | 47,243 | ||
| 2025-11-17 | Arnette Stephen A Chief Operating Officer | Shares withheld for taxes | −287 | $21.49 | $6K | 46,956 |
| 2025-11-17 | Arnette Stephen A Chief Operating Officer | Grant or award | +46,769 | 93,725 | ||
| 2025-11-17 | Arnette Stephen A Chief Operating Officer | Option exercise · Restricted Stock Units | −1,178 | 0 | ||
| 2025-11-17 | DEMETRIOU STEVEN J. Executive Chair | Option exercise | +43,396 | 726,198 | ||
| 2025-11-17 | DEMETRIOU STEVEN J. Executive Chair | Shares withheld for taxes | −17,077 | $21.49 | $367K | 709,121 |
| 2025-11-17 | DEMETRIOU STEVEN J. Executive Chair | Grant or award | +111,355 | 820,476 | ||
| 2025-11-17 | DEMETRIOU STEVEN J. Executive Chair | Option exercise · Restricted Stock Units | −43,396 | 0 | ||
| 2025-11-16 | Arnette Stephen A Chief Operating Officer | Option exercise | +5,053 | 41,036 | ||
| 2025-11-16 | Arnette Stephen A Chief Operating Officer | Shares withheld for taxes | −1,231 | $22.07 | $27K | 39,805 |
| 2025-11-16 | Arnette Stephen A Chief Operating Officer | Option exercise | +3,681 | 43,486 | ||
| 2025-11-16 | Arnette Stephen A Chief Operating Officer | Shares withheld for taxes | −897 | $22.07 | $20K | 42,589 |
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