Welcome to our dedicated page for Amentum Holdings news (Ticker: AMTM), a resource for investors and traders seeking the latest updates and insights on Amentum Holdings stock.
Amentum Holdings, Inc. reports developments tied to its advanced engineering and technology solutions for U.S. and allied government agencies, international customers and commercial markets. Company news commonly covers mission support contracts, nuclear engineering and decommissioning work, space systems operations, defense logistics, aviation support, digital infrastructure and environmental services.
Recurring updates also include quarterly earnings communications, contract awards, joint-venture activity, operational expansions and investor relations or governance changes. Amentum’s releases frame its work across science, security and sustainability, including NASA ground systems support, small modular reactor programs, nuclear research-site cleanup, aerial firefighting operations and Indo-Pacific logistics capabilities.
Amentum (NYSE: AMTM) has been selected for strategic positions on two UK energy frameworks awarded by Scottish and Southern Electricity Networks (SSEN) Transmission, under three-year agreements. Amentum will be the exclusive provider of high-end cybersecurity engineering services to digitize and enhance the security and resilience of the UK energy grid.
Amentum (NYSE: AMTM) has been awarded the $974 million Center Maintenance, Operations, and Engineering II (CMOE II) contract at NASA Langley Research Center in Hampton, Virginia. The company will support advanced research systems, provide engineering services, and manage maintenance and utilities across institutional and research facilities.
According to Amentum, this award extends its more than six-decade partnership with NASA and includes work on wind tunnels, laboratories, infrastructure modernization, and automation of laboratory and wind tunnel testing systems.
Amentum (NYSE: AMTM) has been selected for a new five-year Babcock International Group Engineering Services Framework, enabling it to support nuclear, marine, land, aviation and mission systems for the UK Armed Forces domestically and overseas.
The framework is intended to streamline procurement, deepen long-term partnerships and extend Amentum’s decades-long role across key UK naval bases and dockyards, including support for Astute- and Dreadnought-class submarine infrastructure and wider Royal Navy platforms.
Amentum (NYSE: AMTM) announced that Australian Naval Infrastructure (ANI) has selected a joint venture between Amentum and Laing O’Rourke as its Capability Partner for a long-term contract to support delivery of a nuclear-powered submarine construction yard at Osborne in South Australia.
The joint venture will play a central role in developing the new shipyard where Australia’s SSN-AUKUS nuclear-powered submarines will be built under the AUKUS trilateral agreement. According to Amentum, the team will lead governance, assurance, logistics, commissioning, digital engineering, supply chain quality and integration of construction expertise into design. The Capability Partner will provide nuclear-related program management, construction management and safety leadership within ANI’s Integrated Delivery Office, coordinating work packages and contractor engagement across nuclear and non-nuclear yard areas.
The new yard will enable Australia to build and sustain conventionally armed, nuclear-powered submarines for the first time and is described as critical to national security, defense industrial capability and job creation in South Australia.
Amentum (NYSE: AMTM) reported third quarter FY 2026 revenues of $3.49 billion, down 2% year-over-year, with GAAP net income of $66 million and diluted EPS of $0.27. Adjusted EBITDA rose 6% to $290 million with an 8.3% margin, and adjusted diluted EPS increased 20% to $0.67. Free cash flow was $135 million, up 35%.
The company generated $146 million of operating cash flow and ended the quarter with $459 million in cash and $3.88 billion of gross debt, after a voluntary $125 million term loan repayment. Backlog grew 8% to $48.2 billion, funded backlog rose 10% to $6.2 billion, and last-twelve-month book-to-bill was 1.3x.
Amentum highlighted over $400 million in new global nuclear energy awards, about $250 million in critical digital infrastructure contracts, more than $1 billion in classified defense awards, and large NASA wins including the ~$500 million COSMOS JV award and the $974 million, 10-year CMOE II contract. FY 2026 guidance was updated to revenues of $13.8–$13.95 billion, adjusted EBITDA of $1.115–$1.14 billion, adjusted diluted EPS of $2.40–$2.50, and free cash flow of $525–$575 million.
Amentum (NYSE: AMTM) and Westinghouse Electric Company have signed a series of agreements to support Westinghouse’s APX nuclear technology platform. The collaboration is intended to expand fleet-scale deployment capacity for the AP1000® reactor and advance development of the AP300™ small modular reactor (SMR).
The companies plan to combine Amentum’s nuclear engineering and project expertise with Westinghouse’s validated AP1000 technology, supply chain and licensing strategies. Under the latest agreement, they will work together to obtain U.S. Nuclear Regulatory Commission approval for the AP300 SMR. Westinghouse and Amentum highlight a long track record of joint nuclear projects across the U.S., U.K., Poland, Slovakia, Lithuania and South Africa.
Amentum (NYSE: AMTM) has been selected by the U.S. Department of Energy’s National Nuclear Security Administration to enter negotiations for a phased lease to develop an integrated artificial intelligence data center and energy infrastructure project at the Savannah River Site in South Carolina.
According to Amentum, once finalized, the public‑private project would establish a 1‑gigawatt AI data center supported by about 2 gigawatts of on‑site energy generation, initially using natural gas and later advanced nuclear energy. The project is designed to expand domestic AI computing capacity, enhance reliable power generation, and demonstrate how public‑private partnerships can support critical national security and energy resilience goals.
Amentum (NYSE: AMTM) will host a third quarter fiscal year 2026 earnings conference call on August 11, 2026 at 8:30 AM EDT to discuss financial results for the quarter ended July 3, 2026. A news release with the results will be issued before the call.
The conference call will be webcast to the public via a link on Amentum’s Investor Relations website. According to Amentum, a replay of the call, along with the earnings press release, presentation slides and supplemental financial disclosures, will be available afterward through the same online link.
Amentum (NYSE: AMTM), a global advanced engineering and technology company, was named to TIME Magazine’s America’s Best Companies 2026 list. The ranking, developed with Statista, evaluates U.S. companies using data on employee satisfaction, financial strength, and sustainability transparency, highlighting Amentum’s people-first and responsible-business focus.
Amentum (NYSE: AMTM) has been awarded NASA’s Consolidated Spaceflight Mission Operations and Systems (COSMOS) contract through ASCEND Aerospace & Technology, a joint venture with Aerodyne Industries under the SBA Mentor-Protégé Program.
The work supports NASA’s Flight Operations Directorate at Johnson Space Center across Orion, SLS, ISS, Commercial Crew and Artemis programs, providing mission operations, systems, training, and Mission Control Center expertise.