Visionary AI and Robotics Leader to Drive Scalable Innovation Across Global Markets

Amentum (NYSE:AMTM), a global leader in advanced engineering and technology solutions, has named Dr. Sam Nazari the company's Chief AI Architect. In this role, Dr. Nazari will drive Amentum-wide AI integration to accelerate innovation and work closely with programs to optimize mission impact for customers across the defense, intelligence, energy, space, and commercial sectors.

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Sam Nazari, Chief AI Architect, Amentum

"Advancements in artificial intelligence are revolutionizing how mission objectives are achieved, enabling unprecedented levels of enterprise efficiency, precision, and scalability, " said Jill Bruning, Amentum chief technology officer. "With Sam's unique expertise, he will strategically drive results-focused AI solutions that empower our customers to tackle their most complex challenges – ultimately advancing the world's most critical missions."

In this newly established role, Dr. Nazari's focus spans both customer-facing AI solutions and internal operational automation. His priorities include aligning AI investments with mission-critical customer demand signals, and ensuring all AI deployments meet FedRAMP, CMMC, and client compliance standards.

Dr. Nazari has architected solutions ranging from AI-powered supply chain systems to state-of-the-art autonomous technologies supporting challenging defense environments and tactical operations.

Before the Chief AI Architect role, Dr. Nazari worked for Amentum leading key AI initiatives at DARPA. Prior to joining Amentum, he held roles at Scientific System Company, Inc. (SSCI) and Systems & Technology Research (STR), driving AI and machine learning (ML) advancements for the Department of Defense.

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, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.

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Forward-Looking Statements

This press release contains or incorporates by reference statements by Amentum Holdings, Inc. (the "Company") that relate to future events and expectations and, as such, constitute "forward-looking statements" as that term is defined in the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These forward-looking statements may be characterized by terminology such as "believe," "project," "expect," "anticipate," "estimate," "forecast," "outlook," "target," "endeavor," "seek," "predict," "intend," "strategy," "plan," "may," "could," "should," "will," "would," "will be," "will continue," "will likely result," or the negative thereof or variations thereon or similar terminology generally intended to identify forward-looking statements. All statements, other than historical facts, including, but not limited to, statements regarding the anticipated work and revenue under the awarded contract, and the Company's objectives, expectations and intentions, applicable legal, economic and regulatory conditions, and any assumptions underlying any of the foregoing, are forward-looking statements.

A number of important factors could cause actual results to differ materially from those contained in or implied by these forward-looking statements, including those factors discussed in our filings with the Securities and Exchange Commission (SEC), including, among others: the occurrence of an accident or safety incident; the ability of the Company to control costs, meet performance requirements or contractual schedules; and other factors set forth under Item 1A, Risk Factors in our Annual Report on Form 10-K for the fiscal year ended September 27, 2024, which can be found at the SEC's website at www.sec.gov or the Investor Relations portion of our website at www.amentum.com. Any forward-looking statement speaks only as of the date on which it is made, and the Company assumes no obligation to update or revise such statement, whether as a result of new information, future events or otherwise, except as required by applicable law.

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Donna Savarese

VP, External Communications & Public Affairs

donna.savaree@amentum.com

Amentum Names Dr. Sam Nazari Chief AI Architect