Robert J. Phillippy - May 4, 2022 Form 4 Insider Report for MATERION Corp (MTRN)

Role: Director
Signature: /s/Michelle R. Mekinda as Atty.In Fact.
Stock symbol: MTRN
Transactions as of: May 4, 2022
Transactions value $: $0
Form type: 4
Date filed: 5/6/2022, 04:36 PM
Previous filing: Apr 21, 2022
Next filing: Jun 21, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MTRN	Common Stock	Options Exercise		+1.25K	+12.4%		11.3K	May 4, 2022	Held in Directors Deferred Compensation Plan	F1
holding	MTRN	Common Stock						1.45K	May 4, 2022	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 Unit	Options Exercise	$0	-1.25K	-100%	$0.00^*	0	May 4, 2022	Common Stock	1.25K		Direct	F1, F2
transaction	MTRN	Restricted Stock Units	Award	$0	+1.39K		$0.00	1.39K	May 5, 2022	Common Stock	1.39K		Direct	F1, 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	These shares were issued pursuant to the vesting of a restricted stock unit award made in May 2021 that vested on May 4, 2022.
F3	The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the date of the next annual meeting of MTRN's shareholders that follows the grant date.