Melissa A. Fashinpaur - 12 Jun 2026 Form 4 Insider Report for MATERION Corp (MTRN)

Reporting relationship: Chief Accounting Officer
Issuer ticker: MTRN
Reported as of: 12 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Jun 2026, 13:29:53 UTC
Prior SEC filing: 10 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/Michelle R. Mekinda, as Attorney-In-Fact

Key filing fact

Melissa A. Fashinpaur filed Form 4 for MATERION Corp (MTRN) on 16 Jun 2026.

Key facts

This page summarizes Melissa A. Fashinpaur's Form 4 filing for MATERION Corp (MTRN).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 16 Jun 2026, 13:29.

Change

Previous filing in this sequence was filed on 10 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 0002072270 Primary reporting owner

Fashinpaur Melissa A

Relationship: Chief Accounting Officer
Address: 6070 PARKLAND BOULEVARD, MAYFIELD HEIGHTS
Signature: /s/Michelle R. Mekinda, as Attorney-In-Fact
Signature date: 16 Jun 2026

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: +1
Change %: +0.04%
Price: $0.000000^*
Shares after: 2,238
Date: 12 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1
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 restricted stock 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.