In its Q3 filing with the SEC on November 14, 2025, SEGRA Capital Management established a new position in Amentum by acquiring 417,025 shares valued at approximately $9.99 million. This single holding now represents 11.55% of SEGRA’s total 13F assets under management and ranks as the fund’s third-largest position, behind uranium miner Ur-Energy and nuclear services firm NorthStar. The move reflects SEGRA’s confidence in Amentum’s services-driven business model and diversified government contract portfolio, and signals increased institutional interest; Amentum has outperformed peers by rebounding over 40% year-to-date following a 25% year-earlier decline.

On December 20, 2025, Amentum delivered advanced end-to-end ground systems engineering for NASA’s Countdown Demonstration Test at Kennedy Space Center, mobilizing more than 300 specialists across spacecraft processing, launch vehicle integration and Firing Room support. As prime integrator under NASA’s Exploration Ground Systems program, the company’s engineers modernized critical ground equipment, managed the Launch Control System software backbone, and executed full vehicle power-up procedures. Successful completion of this milestone enhances Amentum’s reputation in high-consequence launch operations and positions it to capture a meaningful share of the $47 billion contract backlog driven by national security and space exploration mandates.