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About Amentum Holdings, Inc. (AMTM)

Amentum Holdings, Inc. engages in the provision of engineering and technology solutions in the United States and internationally. It operates through two segments, Digital Solutions and Global Engineering Solutions. The company offers digital and data-driven solutions, including intelligence analytics, space system development, cybersecurity, and IT to the federal government and commercial clients. It also provides large-scale environmental remediation, nuclear power solutions, platform engineering, sustainment, and supply chain management for the U.S. government and allied nations. The company was incorporated in 2023 and is headquartered in Chantilly, Virginia.

Ticker
AMTM
Exchange
XNYS
Sector
Industrials
Industry
Specialty Business Services

Company profile updated October 10, 2026.

Stored market snapshot

As of October 8, 2026. Daily closing data may differ from the live quote shown in the dashboard.

Stored daily close (USD)
$18.97
Company market capitalization (USD)
$4,638,286,654.61
Price / earnings (TTM)
22.74×
Price / book
0.97×

Research AMTM

Compare the company’s price history and fundamentals in the dashboard. Explore disclosed trading and ownership activity in these research collections: