Shelly Marie Chadwick - 01 Mar 2023 Form 4 Insider Report for MATERION Corp (MTRN)

Role: Vice President, Finance & CFO
Signature: /s/Michelle R. Mekinda, as Attorney-In-Fact
Issuer symbol: MTRN
Transactions as of: 01 Mar 2023
Net transactions value: -$39,648
Form type: 4
Filing time: 03 Mar 2023, 11:50:00 UTC
Previous filing: 26 Jan 2023
Next filing: 14 Mar 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MTRN	Common Stock	Options Exercise	$0	+1,074	+19%	$0.000000	6,691	01 Mar 2023	Direct
transaction	MTRN	Common Stock	Tax liability	$39,648	-350	-5.2%	$113.28	6,341	01 Mar 2023	Direct

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	Options Exercise	$0	-1,074	-7.3%	$0.000000	13,645	01 Mar 2023	Common Stock	1,074		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 granted on 03/01/2022 vest in three equal annual installments.
F3	Expiration Date is the same as the Date Exercisable.