Coherent (COHR) 4: $5.7M RSU tax withholding (Oct 14, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-10-12 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: COHERENT CORP. (COHR) CIK: 0000820318 --- Reporting Owner --- Name: Luther Sherri R CIK: 0001764515 Role: Officer (Chief Financial Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-10-12 | Code: F (Payment of exercise/tax) Shares: -18,284 | Price: $312.62 Total Value: $5,715,944.08 Shares Owned After: 52,571 | Ownership: D (Direct) Footnotes: [F1] Withheld shares are in connection with the vesting of a restricted stock unit award of 79,056 shares granted to the reporting person on October 11, 2024, of which 15,902 of the restricted stock units vest in three equal annual installments beginning on October 11, 2025, and 63,154 of the restricted stock units vest in two equal annual installments beginning on October 11, 2025. [F2] These shares were withheld by the company to discharge withholding tax obligations of the reporting person and do not constitute an actual sale or other open market transaction. --- Footnotes (Complete Index) --- F1: Withheld shares are in connection with the vesting of a restricted stock unit award of 79,056 shares granted to the reporting person on October 11, 2024, of which 15,902 of the restricted stock units vest in three equal annual installments beginning on October 11, 2025, and 63,154 of the restricted stock units vest in two equal annual installments beginning on October 11, 2025. F2: These shares were withheld by the company to discharge withholding tax obligations of the reporting person and do not constitute an actual sale or other open market transaction. --- Signature --- /s/ /s/ Christopher M. Forrester, Attorney-in-Fact (2026-10-14)