MTRN SCHEDULE 13G: SEC filing
State Street Corporation and its subsidiary SSGA Funds Management
Filed with the SEC on · accession 0000093751-26-000690
MTRN filed a SCHEDULE 13G (schedule 13g) with the SEC on Nov 10, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -0.3% by the first close after the filing.
Summary of the filing
State Street Corporation and its subsidiary SSGA Funds Management filed a Schedule 13G disclosing a passive ownership position in Materion Corp. State Street beneficially owns 1,603,883 shares (7.7%) and SSGA Funds Management owns 1,115,792 shares (5.4%).
Key details
How MTRN stock reacted
Close before
$202.14
Nov 9, 2026
First close after
-0.35%
$201.44
5 trading days
—
Since filing
—
✦ Ask GOAX AI about this filing — what it means for MTRN, what changed since its last filings and what to watch next.
Try it free for 7 days🔔 Want to stay updated on new SEC filings for MTRN?
Click hereFrequently asked questions
What did MTRN file with the SEC on Nov 10, 2026?
MTRN filed a SCHEDULE 13G (SEC filing). State Street Corporation and its subsidiary SSGA Funds Management filed a Schedule 13G disclosing a passive ownership position in Materion Corp. State Street beneficially owns 1,603,883 shares (7.7%) and SSGA Funds Management owns 1,115,792 shares (5.4%).
How do I read a SCHEDULE 13G?
A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G (schedule 13g): A report the company filed with the SEC (the US market regulator).
How did MTRN stock react to this filing?
MTRN closed at $202.14 before the filing and $201.44 on Nov 10, 2026 (-0.35%).
Other MTRN SEC filings
Get alerts when MTRN files with the SEC, plus live charts, key levels and news for 13,000+ stocks.
Try SEPT free for 7 days