Coherent Corp. (COHR) Stock After the Bell on Dec. 12, 2025: Why Shares Fell, Bain’s Block Sale, Analyst Forecasts, and What to Watch Ahead of Dec. 13
Coherent Corp. shares fell 10% to $178.56 Friday and slid further after hours, following a Bain affiliate’s $947.8 million block sale of 5 million shares disclosed in an SEC filing. Trading volume nearly doubled the average. The drop coincided with a broader selloff in AI-related tech stocks, as the S&P 500 lost 1.1% and the Nasdaq fell 1.7%.