X0306 4 2020-04-17 0 0000021510 COHERENT INC COHR 0001433762 Palatnik Kevin S. 5100 PATRICK HENRY DR SANTA CLARA CA 95054 0 1 0 0 Chief Financial Officer Performance Restricted Stock Units 0.00 2020-04-17 4 A 0 1807 0.00 A 2023-04-06 Common Stock 1807 1807 D This Performance Restricted Stock Unit ("PRSU") award vests April 6, 2023 based on the relative performance of the underlying stock versus the Russell 1000 Index for the 20 trading days on and prior to April 6, 2023 versus the 20 trading day period beginning April 6, 2020. The number of shares in the table reflects the number of PRSUs at target. The actual range of PRSUs is 0-200% of the target number, depending upon what achievement, if any, results at the measurement date. /s/ Rhonda Fassbender, pursuant to Power of Attorney 2020-04-21