BigBear.ai Holdings' stock experienced a significant after-hours plunge of 5.85% following the release of its fourth-quarter 2025 financial results. The decline occurred in post-market trading as investors reacted to the company's latest earnings report.

The AI solutions provider reported quarterly revenue of $27.3 million, which missed analyst consensus estimates of $33.309 million by 18.04% and represented a 37.71% decrease from the same period last year. Company officials attributed the revenue decline to lower volume on Army programs and the absence of significant one-time high-margin contracts that boosted results in the prior year period. The quarterly gross margin also declined to 20.3% from 37.4% in the fourth quarter of 2024.

Despite the quarterly challenges, BigBear.ai highlighted several positive developments including the completion of Ask Sage and CargoSeer acquisitions, expansion into the Middle East market, and a strengthened financial position with $462 million in total cash and investments as of December 31, 2025. The company also settled the remaining $125 million of its 2029 convertible notes and provided a 2026 revenue outlook of $135 million to $165 million.