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AMTM
Amentum Holdings, Inc.
NYSE · SERVICES-BUSINESS SERVICES, NEC
Last close
$19.29
· 2026-10-09
ABOUT
Exchange
NYSE
Sector
Consumer Cyclical
Industry
SERVICES-BUSINESS SERVICES, NEC
Market cap
$4.43B
Country
USA
RECENT INSIDER TRADES
2026-09-17
· Thompson Christopher M.T.
(Director)
· OTHER
2026-05-07
· Mullen Sean Thomas
(Chief Growth Officer)
· OTHER
2026-05-07
· Arnette Stephen A
(Chief Operating Officer)
· OTHER
2026-05-07
· Bruning Jill L
(Chief Technology Officer)
· OTHER
INSTITUTIONAL OWNERSHIP
Institutional holders
505
Shares held
235,743,178
Value
$4.68B
Percent of shares outstanding
96.42%
As of quarter end
2026-06-30
RECENT CONGRESSIONAL TRADES
2024-10-31
· Hon. William R. Keating · SELL
· $1,001 - $15,000
2024-09-30
· Hon. Thomas H. Kean Jr. · EXCHANGE
· $1,001 - $15,000
RECENT NEWS
Amentum opens nuclear headquarters in Oak Ridge, Tennessee
Amentum prioritizes margin quality over revenue growth
Amentum Holdings stock hits 52-week low at 17.88 USD
Amentum JV selected for up to $2.78B Sellafield program
Amentum lands $572M defense deal to support Cheyenne Mountain hub
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2026 CATALYSTPIT · NOT FINANCIAL ADVICE · DELAYED FILINGS