Materion MTRN Institutional Ownership

Updated Oct 11, 2026

MATERION Corp (NYSE:MTRN) had 404 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

• These investors held 97.04% of outstanding shares in Q2 2026, up from 94.11% the quarter before.
• Total holdings of MTRN shares rose 3.35% from Q1 2026, and the holder count rose 59.06% from Q2 2025.
• Among the 404 holders of Materion, 238 added to their positions, 121 reduced their stakes and 45 left their positions unchanged.
• Altogether, institutional holders owned 20.19Mn MTRN shares at the end of Q2 2026, up 653.63K from the prior quarter and up 947.49K from a year earlier.
• BlackRock, Inc. held the largest position in MTRN at 3.47Mn shares as of June 30, 2026, or 16.70% of shares outstanding.
• Among existing holders, the largest additions to Materion in Q2 2026 came from T. Rowe Price Associates Inc (+304.88K shares), Capital Research Global Investors (+210.58K shares), State Street Corp (+128.03K shares), Goldman Sachs Group Inc (+119K shares) and BlackRock, Inc. (+104.56K shares).
• On the other side, among holders that kept a position in Materion, the largest reductions in Q2 2026 came from ACK Asset Management LLC (-339.8K shares), Dimensional Fund Advisors LP (-307.21K shares), American Century Companies Inc (-266.66K shares), Trigran Investments, Inc. (-114.11K shares) and Barrow Hanley Mewhinney & Strauss LLC (-83.77K shares).
• Per Business Quant data, the 10 largest holders of Materion at the end of Q2 2026 were BlackRock, Inc. (3.47Mn shares), State Street Corp (1.46Mn shares), Vanguard Portfolio Management LLC (1.4Mn shares), Capital Research Global Investors (1Mn shares), Vanguard Capital Management LLC (937.55K shares), American Century Companies Inc (616.02K shares), Geode Capital Management, LLC (591.01K shares), Dimensional Fund Advisors LP (577.95K shares), Fisher Asset Management, LLC (495.23K shares) and Barrow Hanley Mewhinney & Strauss LLC (446.07K shares).