X0609 4 2026-05-08 0 0001104657 MATERION Corp MTRN 0001048858 EDMAN THOMAS T false 6070 PARKLAND BOULEVARD MAYFIELD HEIGHTS OH 44124 1 0 0 0 0 Restricted Stock Units 2026-05-08 4 A 0 758 0 A Common Stock 758 758 D Each restricted stock unit represents a right to receive one share of MTRN common stock. The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant. Expiration Date is the same as the Date Exercisable. /s/Michelle R. Mekinda, as Attorney-In-Fact 2026-05-11