Astera Labs (ALAB) Stock After the Bell on Dec. 12, 2025: Why Shares Fell, After-Hours Moves, Analyst Forecasts, and What to Watch Next
Astera Labs, Inc. (NASDAQ: ALAB) ended Friday’s session (December 12, 2025) in sharp reversal mode, finishing the regular trading day near $148.85, down about 14.3% from the prior close after swinging from an early high in the low $170s to a late-session low in the mid $140s. CNBC Apps+1 In extended trading “after the bell,” quotes were little changed—hovering around $148.6—suggesting the market’s big repricing happened during regular hours rather than on a fresh after-hours headline. Investing.com+1 Below is what mattered on December 12, what Wall Street and traders were focused on as the day wrapped, and what to keep