X0306 4 2021-11-13 0 0000021510 COHERENT INC COHR 0001364879 DiMarco Bret 5100 PATRICK HENRY DRIVE SANTA CLARA CA 95054 0 1 0 0 Exec VP & Chief Legal Officer Common Stock 2021-11-13 4 M 0 2291 0.00 A 27634 I Family Trust Common Stock 2021-11-13 4 F 0 1681 259.00 D 25953 I Family Trust Common Stock 27335 D Performance Restricted Stock Units 0.00 2021-11-13 4 M 0 2291 0.00 D 2021-11-13 Common Stock 2291 0 D Released shares issued to family trust. Represents shares withheld to satisfy minimum tax withholding obligations for released restricted stock units and performance restricted stock units. Includes 27,335 Restricted Stock Units. This Performance Restricted Stock Unit award vested after the three year anniversary of the grant based on the relative performance of the underlying stock versus the Russell 1000 Index for the 90 trading days on and prior to November 13, 2021 versus the same 90 trading day period ending November 13, 2018. The number of shares reflects achievement of 72% of the number of RSUs at target. /s/ Bret DiMarco 2021-11-16