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Institutional ownership intelligence
Schedule 13G/A

MTRN Schedule 13G/A filing by Capital Research Global Investors

Capital Research Global Investors reported beneficial ownership of 20.8M shares, representing 12% of MATERION Corp in this filing.

FiledMay 14, 2026
Ownership dateMar 31, 2026
Reported shares20.8M
Reported ownership12%
Ownership details

Voting and dispositive power reported in the filing

These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.

Sole voting power 789.9K
Shared voting power 789.9K
Sole dispositive power 789.9K
Shared dispositive power 789.9K
Compared with the prior filing

How the reported position changed

This compares the current filing with the previous tracked Schedule 13 filing from the same reporting CIK for MTRN. A change between filings does not by itself establish when shares were bought or sold.

Previous filingFeb 13, 2025
Reported share change+50,056
Ownership percentage change0 pts
Previous filingThis filing
Reported shares20.8M20.8M
Reported ownership12%12%
Price context

Price dates alongside the ownership filing

Price data provides market context around the disclosure. It does not identify the filer’s actual transaction price.

Close near filing date$211.09as of May 14, 2026
Latest tracked price$297.08as of Aug 5, 2026
Source

Original filing and accession

Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.

Reporting filer
Capital Research Global Investors
CIK
CIK0001422848
Accession
0001422848-26-000078
Form
Schedule 13G/A
Read the filing in context

Understand what a Schedule 13 filing does—and does not—tell you.