8-K Current report

Filed Thursday, December 11, 2025, accepted by the SEC at 5:03 PM Eastern. Events (8-K).

Open the filing at sec.gov Main document

Accession number: 0001104657-25-000207
Form: 8-K
Period or event date: Dec 9, 2025
Main document: mtrn-20251209.htm
Size at EDGAR: 173 KB

8-K items reported

Item numbers as the company tagged them, with the official titles from SEC Form 8-K. The text of what happened is in the filing itself.

5.02Directors or officersDeparture of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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.