Gregory R. Chemnitz - 04 Nov 2025 Form 4 Insider Report for MATERION Corp (MTRN)

Role
VP General Counsel & Secretary
Signature
/s/ Christina Zalanka, as Attorney-In-Fact
Issuer symbol
MTRN
Transactions as of
04 Nov 2025
Net transactions value
-$137,311
Form type
4
Filing time
06 Nov 2025, 13:27:24 UTC
Previous filing
09 Sep 2025
Next filing
09 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Chemnitz Gregory R. VP General Counsel & Secretary 6070 PARKLAND BLVD., MAYFIELD HEIGHTS /s/ Christina Zalanka, as Attorney-In-Fact 06 Nov 2025 0001519910

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MTRN Common Stock Options Exercise $100,408 +1,459 +14% $68.82 11,835 04 Nov 2025 Direct
transaction MTRN Common Stock Tax liability $118,947 -1,053 -8.9% $112.96 10,782 04 Nov 2025 Direct
transaction MTRN Common Stock Options Exercise $182,236 +2,254 +21% $80.85 13,036 04 Nov 2025 Direct
transaction MTRN Common Stock Tax liability $203,181 -1,796 -14% $113.13 11,240 04 Nov 2025 Direct
transaction MTRN Common Stock Sale $97,827 -864 -7.7% $113.23 10,376 04 Nov 2025 Direct
holding MTRN Common Stock 5,337 04 Nov 2025 Held in 401(k) Plan

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 Stock Appreciation Rights Options Exercise $0 -1,459 -100% $0.000000 0 04 Nov 2025 Common Stock 1,459 $68.82 Direct F1
transaction MTRN Stock Appreciation Rights Options Exercise $0 -2,254 -100% $0.000000 0 04 Nov 2025 Common Stock 2,254 $80.85 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.