AST SpaceMobile (ASTS) Stock After Hours Today (Dec. 15, 2025): BlueBird 6 Launch Delay, Insider-Selling Headlines, and What to Watch Before Tuesday’s Open
AST SpaceMobile, Inc. (NASDAQ: ASTS) ended Monday, December 15, 2025, in sharp reverse—then continued sliding after the closing bell as investors recalibrated around one near-term catalyst that matters more than almost anything else for the company right now: execution on its next-generation satellite launch schedule. By the end of after-hours trading, ASTS was not just nursing a steep regular-session drop—it was also wrestling with fresh uncertainty around BlueBird 6, the company’s first next-generation satellite and a pivotal “prove it” moment for its direct-to-device broadband ambitions. Below is what the market is reacting to after the bell today (Dec. 15) and