Gregory R. Chemnitz - 06 Mar 2026 Form 4 Insider Report for MATERION Corp (MTRN)

Reporting relationship: VP General Counsel & Secretary
Issuer ticker: MTRN
Reported as of: 06 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 10 Mar 2026, 14:21:30 UTC
Prior SEC filing: 03 Mar 2026
Next SEC filing: 16 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/Michelle R. Mekinda, as Attorney-In-Fact

Key filing fact

Gregory R. Chemnitz filed Form 4 for MATERION Corp (MTRN) on 10 Mar 2026.

Key facts

This page summarizes Gregory R. Chemnitz's Form 4 filing for MATERION Corp (MTRN).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 10 Mar 2026, 14:21.

Change

Previous filing in this sequence was filed on 03 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001519910 Primary reporting owner

Chemnitz Gregory R.

Relationship: VP General Counsel & Secretary
Address: 6070 PARKLAND BLVD., MAYFIELD HEIGHTS
Signature: /s/Michelle R. Mekinda, as Attorney-In-Fact
Signature date: 10 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MTRN transaction

Common Stock

Award

Transaction value
Shares: +5
Change %: +0.08%
Price: $0.000000^*
Shares after: 5,935
Date: 06 Mar 2026
Ownership: Direct

MTRN transaction

Common Stock

Tax liability

Transaction value
Shares: -5
Change %: -0.08%
Price: $144.19^*
Shares after: 5,930
Date: 09 Mar 2026
Ownership: Direct

MTRN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 5,348
Date: 06 Mar 2026
Ownership: Held in 401(k) Plan

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MTRN transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +4
Change %: +0.11%
Price: $0.000000^*
Shares after: 3,543
Date: 06 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4
Exercise price
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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

Footnote F2

These units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate.

Footnote F3

Expiration Date is the same as the Date Exercisable.