Amentum Reports First Quarter Fiscal Year 2025 Results and Reaffirms Full Year Guidance

CHANTILLY, VA., February 4, 2025 — Amentum Holdings, Inc. (“Amentum” or the “Company”) (NYSE: AMTM), a leading advanced engineering and technology company, today announced results for the first quarter ended December 27, 2024, and reaffirmed its outlook for fiscal year 2025.

“We are off to a strong start as a newly combined company,” said Amentum Chief Executive Officer John Heller. “Our first quarter results were robust and in line with our expectations across all key financial metrics, including organic growth and free cash flow. This solid start to the year, coupled with strong bid volume and growing momentum, position Amentum to meet our fiscal year 2025 commitments and drive long-term value for shareholders.”

Amentum’s full press release is available on the investor relations webpage.

Webcast Information

Amentum will host a conference call beginning at 8:30 a.m. Eastern time on Wednesday, February 5, 2025 to discuss the results for the first quarter of fiscal year ended December  27, 2024. The conference call will be webcast simultaneously to the public through a link on the Investor Relations section of the Amentum website at amentum.com. After the call concludes, a replay of the webcast can be accessed on the Investor Relations website.

About Amentum

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, inclusion and well-being are integral to success. Headquartered in Chantilly, Virginia, we have more than 53,000 employees in approximately 80 countries.

Visit us at amentum.com to learn how we advance the future together.

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Contacts

Investor Relations Contact:

Nathan Rutledge

[email protected]

Media Contact:

Roela Santos

[email protected]