MATERION Corp — Director's Dealing 2025

Nov 6, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MATERION Corp (MTRN)
CIK: 0001104657
Period of Report: 2025-11-04

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-04	Common Stock	M	1459	$68.82	Acquired	11835	Direct
2025-11-04	Common Stock	F	1053	$112.96	Disposed	10782	Direct
2025-11-04	Common Stock	M	2254	$80.85	Acquired	13036	Direct
2025-11-04	Common Stock	F	1796	$113.13	Disposed	11240	Direct
2025-11-04	Common Stock	S	864	$113.226	Disposed	10376	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-11-04	Stock Appreciation Rights	$68.82	M	1459	Disposed	2028-02-17	Common Stock (1459)	Direct
2025-11-04	Stock Appreciation Rights	$80.85	M	2254	Disposed	2029-03-01	Common Stock (2254)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5337.344	Indirect

Footnotes

F1: The Stock Appreciation Rights vested in three equal annual installments beginning February 17, 2022.

F2: The Stock Appreciation Rights vested in three equal annual installments beginning March 1, 2023.