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Amentum Holdings, Inc. (AMTM)

21.87 -0.20 (-0.91%)
At close: October 30 at 4:00:02 PM EDT
21.81 -0.06 (-0.29%)
After hours: October 30 at 6:10:46 PM EDT
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Key Executives

Amounts are as of December 31, 2025 and compensation values are for the last fiscal year ending on that date. Pay is salary, bonuses, etc. Exercised is the value of options exercised during the fiscal year. Currency in USD.
Name Title Pay Exercised Year Born
Mr. Steven J. Demetriou
Executive Chair 2.69M -- 1958
Mr. John E. Heller
CEO & Director 3.21M -- 1962
Mr. Travis Barton Johnson
Chief Financial Officer 1.93M -- 1985
Mr. Stephen A Arnette
Chief Operating Officer 1.62M -- 1968
Mr. Sean Mullen
Chief Growth Officer 1.4M -- 1968
Ms. Jill Bruning
Chief Technology Officer -- -- 1959
Mr. Luis German
Chief Information Officer -- -- --
Mr. Joseph William DeNardi
Senior VP & Head of Investor Relations -- -- --
Ms. Karina Vollmer
Chief Ethics & Compliance Officer -- -- --
Ms. Michele St. Mary
Chief Legal Officer, General Counsel & Corporate Secretary -- -- 1970

Amentum Holdings, Inc.

4800 Westfields Blvd
Suite #400
Chantilly, VA 20151
United States
703 579 0410 https://www.amentum.com
Sector: 
Industrials
Full Time Employees: 
50,000

Description

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.

Corporate Governance

Amentum Holdings, Inc.’s ISS Governance QualityScore as of N/A is N/A. The pillar scores are Audit: N/A; Board: N/A; Shareholder Rights: N/A; Compensation: N/A.
Corporate governance scores courtesy of Institutional Shareholder Services (ISS) Scores indicate decile rank relative to index or region. A decile score of 1 indicates lower governance risk, while a 10 indicates higher governance risk.

Upcoming Events

November 23, 2026 at 9:00 PM UTC

Amentum Holdings, Inc. Earnings Date

Recent Events

October 2, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

August 11, 2026 at 12:00 AM UTC

10-Q: Periodic Financial Reports

August 10, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

May 12, 2026 at 12:00 AM UTC

10-Q: Periodic Financial Reports

May 11, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

April 28, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

February 10, 2026 at 12:00 AM UTC

10-Q: Periodic Financial Reports

February 9, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

December 19, 2025 at 12:00 AM UTC

ARS: Annual Report to Shareholders

November 25, 2025 at 12:00 AM UTC

10-K: Periodic Financial Reports

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