State Street Corporation and its subsidiary SSGA Funds Management, Inc. filed a Schedule 13G with the SEC on November 10, 2026, disclosing beneficial ownership positions in Materion Corp common stock as of September 30, 2026.

Key Highlights

  • State Street Corporation aggregate stake: 1,603,883 shares, representing 7.7% of Materion Corp common stock.
  • SSGA Funds Management stake: 1,115,792 shares, representing 5.4% of the class, reported separately as an investment adviser.
  • Shared voting power (State Street Corporation): 1,545,416 shares; sole voting power reported as 0.
  • Shared dispositive power (State Street Corporation): 1,603,883 shares; sole dispositive power reported as 0.
  • Triggering date: The event requiring this filing occurred on September 30, 2026.
  • Subsidiaries identified: Five State Street subsidiaries are listed as investment advisers, including SSGA Funds Management, Inc., State Street Global Advisors Europe Limited, State Street Global Advisors Limited, State Street Global Advisors Trust Company, and State Street Global Advisors, Ltd.

State Street Corporation Discloses Beneficial Ownership in Materion Corp

According to the filing, State Street Corporation, organized in Massachusetts and classified as a parent holding company (HC), reported aggregate beneficial ownership of 1,603,883 shares of Materion Corp (NYSE:MTRN) common stock, equating to 7.7% of the class. The company's principal business address is listed as One Congress Street, Suite 1, Boston, MA 02114. Materion Corp's principal executive offices are located at 6070 Parkland Blvd, Mayfield Heights, Ohio, 44124, according to the filing.

The filing discloses that State Street Corporation holds shared voting power over 1,545,416 shares and shared dispositive power over 1,603,883 shares, with sole voting and sole dispositive power each reported as zero. SSGA Funds Management, Inc., classified as an investment adviser (IA) and a subsidiary of State Street Corporation, separately reported beneficial ownership of 1,115,792 shares, or 5.4% of the class, with shared voting power of 1,112,818 shares and shared dispositive power of 1,115,792 shares.

The certifications included in the filing state that, according to the reporting persons, "the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer." The filing was signed on November 9, 2026, by Alok Maheshwary, Senior Vice President, on behalf of State Street Corporation, and by Brian Harris, Chief Compliance Officer, on behalf of SSGA Funds Management, Inc.

What Was Disclosed

State Street Corporation and SSGA Funds Management, Inc. disclosed beneficial ownership positions in Materion Corp common stock via a Schedule 13G, with State Street reporting 1,603,883 shares (7.7%) and SSGA Funds Management reporting 1,115,792 shares (5.4%), both as of September 30, 2026.