144 0001910890 XXXXXXXX LIVE 0000820318 Coherent Corp. 001-39375 375 Saxonburg Blvd. Saxonburg PA 16056 724-352-4455 BCPE Watson (DE) BML, LP Affiliate Common Stock, no par value Goldman Sachs & Co. LLC

200 West Street New York City NY 10282

7500000 1075275000.00 157153611 11/24/2025 NYSE Common Stock, no par value 11/25/2025 Acquired upon conversion of its Series B-1 Convertible Preferred Stock, which was settled with cash on March 31, 2021. Issuer N 2971280 03/31/2021 Settled with cash on March 31, 2021. Common Stock, no par value 11/25/2025 Acquired upon conversion of its Series B-2 Convertible Preferred Stock, which was settled with cash on July 1, 2022. Issuer N 4528720 07/01/2022 Settled with cash on July 1, 2022. N BCPE Watson (DE) BML, LP

200 Clarendon Street Boston MA 02116

Common Stock, no par value 11/07/2025 7500000 1075275000.00 11/24/2025 /s/ Joseph Robbins, as Partner of Bain Capital Investors, LLC