Metallus MTUS Institutional Ownership

Updated Oct 11, 2026

Metallus Inc. (NYSE:MTUS) had 204 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

• These investors held 85.76% of outstanding shares in Q2 2026, down from 86.00% the quarter before.
• Total shares held in Metallus fell 0.52% from Q1 2026, while the number of holders rose 13.33% from Q2 2025.
• Among the 204 holders of Metallus, 102 added to their positions, 58 reduced their stakes and 44 left their positions unchanged.
• Altogether, institutional holders owned 35.68Mn MTUS shares at the end of Q2 2026, down 188.1K from the prior quarter and up 766.5K from a year earlier.
• As of June 30, 2026, BlackRock, Inc. held the largest stake in Metallus with 5.83Mn shares, or 14.01% of shares outstanding.
• Among holders that already owned Metallus, the biggest buyers in Q2 2026 were Acadian Asset Management LLC (+624.37K shares), Citadel Advisors LLC (+227.94K shares), BlackRock, Inc. (+171.31K shares), Mirae Asset Global ETFS Holdings Ltd. (+163.91K shares) and Nuveen, LLC (+158.17K shares).
• On the other side, among holders that kept a position in Metallus, the largest reductions in Q2 2026 came from Donald Smith & Co., Inc. (-463.22K shares), State Street Corp (-387.08K shares), SEI Investments Co (-142.49K shares), Charles Schwab Investment Management Inc (-136.13K shares) and Azarias Capital Management, L.P. (-123.81K shares).
• Per Business Quant data, the 10 largest holders of Metallus at the end of Q2 2026 were BlackRock, Inc. (5.83Mn shares), Dimensional Fund Advisors LP (2.56Mn shares), State Street Corp (2.41Mn shares), Mirae Asset Global ETFS Holdings Ltd. (2.01Mn shares), American Century Companies Inc (1.67Mn shares), Vanguard Capital Management LLC (1.57Mn shares), Systematic Financial Management LP (1.43Mn shares), Vanguard Portfolio Management LLC (1.07Mn shares), Royce & Associates LP (988.43K shares) and Geode Capital Management, LLC (929.92K shares).