X0508 4 2025-12-05 0 0001104657 MATERION Corp MTRN 0001231898 LIGGETT EMILY M 6070 PARKLAND BLVD. MAYFIELD HTS. OH 44124 1 0 0 0 0 Common Stock 2025-12-05 4 A 0 1.402 0 A 1269.346 I Held in Directors Deferred Comp. Plan Common Stock 3776 D Restricted Stock Units 2025-12-05 4 A 0 2 0 A Common Stock 2 2004 D Each restricted stock unit represents a right to receive one share of MTRN common stock. These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders). Expiration Date is the same as the Date Exercisable. Exhibit 24 Power of Attorney /s/Michelle R. Mekinda, as Attorney-In-Fact 2025-12-09