Melissa A. Fashinpaur - 31 Jan 2026 Form 4 Insider Report for MATERION Corp (MTRN)

Role: Chief Accounting Officer
Signature: /s/Michelle R. Mekinda, as Attorney-In-Fact
Issuer symbol: MTRN
Transactions as of: 31 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 03 Feb 2026, 14:55:30 UTC
Previous filing: 09 Dec 2025
Next filing: 13 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Fashinpaur Melissa A	Chief Accounting Officer	6070 PARKLAND BOULEVARD, MAYFIELD HEIGHTS	/s/Michelle R. Mekinda, as Attorney-In-Fact	03 Feb 2026	0002072270

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MTRN	Restricted Stock Units	Award	$0	+52	+2.3%	$0.000000	2,266	31 Jan 2026	Common Stock	52		Direct	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a right to receive one share of MTRN common stock.
F2	The restricted stock units will vest on January 31, 2029.
F3	Expiration Date is the same as the Date Exercisable.