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 |
|---|---|---|---|---|---|---|
| 2026-05-06 | Mullen Sean Thomas Chief Growth Officer | Shares withheld for taxes | −2,762 | $24.89 | $69K | 32,448 |
| 2026-05-06 | Mullen Sean Thomas Chief Growth Officer | Option exercise · Restricted Stock Units | −9,072 | 9,073 | ||
| 2026-05-06 | Johnson Travis Barton Chief Financial Officer | Option exercise | +13,609 | 122,284 | ||
| 2026-05-06 | Johnson Travis Barton Chief Financial Officer | Shares withheld for taxes | −4,097 | $24.89 | $102K | 118,187 |
| 2026-05-06 | Johnson Travis Barton Chief Financial Officer | Option exercise · Restricted Stock Units | −13,609 | 13,609 | ||
| 2026-05-06 | Bruning Jill L Chief Technology Officer | Option exercise | +9,072 | 200,188 | ||
| 2026-05-06 | Bruning Jill L Chief Technology Officer | Shares withheld for taxes | −2,731 | $24.89 | $68K | 197,457 |
| 2026-05-06 | Bruning Jill L Chief Technology Officer | Option exercise · Restricted Stock Units | −9,072 | 9,073 | ||
| 2026-05-06 | Arnette Stephen A Chief Operating Officer | Option exercise | +13,609 | 109,966 | ||
| 2026-05-06 | Arnette Stephen A Chief Operating Officer | Shares withheld for taxes | −3,314 | $24.89 | $82K | 106,652 |
| 2026-05-06 | Arnette Stephen A Chief Operating Officer | Option exercise · Restricted Stock Units | −13,609 | 13,609 | ||
| 2026-03-04 | Bruning Jill L Chief Technology Officer | Gift | −30,000 | 190,999 | ||
| 2026-03-02 | Arnette Stephen A Chief Operating Officer | Option exercise | +2,808 | 97,107 | ||
| 2026-03-02 | Arnette Stephen A Chief Operating Officer | Shares withheld for taxes | −750 | $30.70 | $23K | 96,357 |
| 2026-03-02 | Arnette Stephen A Chief Operating Officer | Option exercise · Restricted Stock Units | −2,808 | 0 | ||
| 2026-02-17 | St. Mary Michele T Chief Legal Officer & GC | Option exercise | +7,080 | 29,351 | ||
| 2026-02-17 | St. Mary Michele T Chief Legal Officer & GC | Shares withheld for taxes | −2,308 | $30.05 | $69K | 27,043 |
| 2026-02-17 | St. Mary Michele T Chief Legal Officer & GC | Option exercise · Restricted Stock Units | −7,080 | 14,162 | ||
| 2026-02-06 | IRELAND SUSAN LESLIE Director | Grant or award | +5,062 | 8,509 | ||
| 2026-02-06 | Rowland Sandra E. Director | Option exercise | +11,564 | 15,011 |
Page 2 of 9 · 180 trades