Coherent Corp COHR Stock: What to Know Before the US Market Opens on Dec. 15, 2025
Coherent Corp. (COHR) fell 10.16% to $178.34 on Friday after Bain Capital’s affiliate converted Series B-2 preferred stock into 5 million common shares and sold them in a $947.75 million block trade. An SEC filing shows a mandatory conversion of the remaining Series B-2 preferred, representing nearly 9.8 million shares, will take effect Dec. 15, raising concerns about further share supply at Monday’s open.