BigBear.ai (BBAI) shares surged 19% in premarket trading on November 11, 2025, after the company reported better-than-expected third-quarter results and announced the acquisition of Ask Sage for $250 million. The generative AI platform, Ask Sage, specializes in defense and national security applications. BigBear.ai's Q3 revenue reached $33.1 million, surpassing analyst expectations, while the company posted a narrower-than-expected GAAP loss per share of $0.03. The acquisition is set to enhance BigBear.ai's capabilities in the defense AI sector by integrating Ask Sage's secure AI technologies.