Cuyahoga County, Ohio SEC filings desk

Twice an hourEDGAR read 6:10 AM to 10:40 PM Eastern on weekdays, and nightly at 11:55

Cuyahoga Courier Route Pass$1.95 a month, free during preview

MTRN · Materion

3 Initial statement of insider ownership

Filed Friday, January 30, 2026, accepted by the SEC at 12:01 PM Eastern. Insider forms.

Open the filing at sec.gov Main document

Accession number
0001048858-26-000001
Form
3
Period or event date
Jan 21, 2026
Main document
wk-form3_1769792499.xml
Size at EDGAR
46 KB

This form reports holdings only, with no transaction lines.

Cuyahoga Courier copies the filing’s index facts from EDGAR and links to the original; it does not store or summarise the document. Nothing here is investment advice.