MATERION Corp — Director's Dealing 2025

May 9, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MATERION Corp (MTRN)
CIK: 0001104657
Period of Report: 2025-05-07

Reporting Person: PHILLIPPY ROBERT J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-07	Common Stock	M	1155	—	Acquired	5158	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-07	Restricted Stock Units	$	M	1155	Disposed		Common Stock (1155)	Direct
2025-05-08	Restricted Stock Units	$	A	1996	Acquired		Common Stock (1996)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	11966.376	Indirect

Footnotes

F1: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2: These shares were issued pursuant to the vesting of a restricted stock unit award made on May 10, 2024 that vested on May 7, 2025.

F3: Expiration Date is the same as the Date Exercisable.

F4: 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 date.