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MATERION Corp Director's Dealing 2025

May 6, 2025

31520_dirs_2025-05-06_ab52ecb1-e566-4599-8947-c1b684e328aa.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MATERION Corp (MTRN)
CIK: 0001104657
Period of Report: 2025-05-05

Reporting Person: Chemnitz Gregory R. (VP General Counsel & Secretary)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-05-05 Common Stock S 930 $79.849 Disposed 14446 Direct
2025-05-05 Common Stock S 939 $80.861 Disposed 13507 Direct
2025-05-05 Common Stock S 130 $81.698 Disposed 13377 Direct
2025-05-05 Common Stock S 1 $83.328 Disposed 13376 Direct

Holdings (Non-Derivative)

Security Shares Ownership
Common Stock 5321.432 Indirect

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.520 to $80.516, inclusive.

F2: The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (3), and (4) of this Form 4.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.523 to $81.512, inclusive.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.525 to $81.970, inclusive.