MasterBrand, Inc. (MBC) Institutional Ownership

Ownership Summary

MasterBrand, Inc. (NYSE:MBC) showed up in the 13F filings of 315 institutional investors as of December 2025.

• These investors held 112.6% of outstanding shares in December 2025, up from 103.3% in September 2025.
• They increased total shares held in MasterBrand by 10.91% from the prior quarter, while the number of investors in MBC decreased 12.01% year over year.
• During the quarter, 126 of these 315 funds increased positions in MBC, 105 reduced exposure, and 84 held steady.
• Institutional investors collectively held 145.54Mn shares in MasterBrand as of December 2025, up by 14.32Mn shares quarter on quarter, and up 28.07Mn shares year over year.
• As of December 31, 2025, the biggest holder of MasterBrand is BlackRock, Inc. at 19.36Mn shares, representing 14.99% of shares outstanding.
• The largest buyers of MasterBrand for the quarter ending December 2025 were Pertento Partners LLP (3.88Mn), Coliseum Capital Management, LLC (3.21Mn), COOKE & BIELER LP (2.83Mn), Sixth Street Partners Management Company, L.P. (1.57Mn), Diameter Capital Partners LP (950.0K).
• The largest sellers of MasterBrand for the quarter ending December 2025 were Gates Capital Management, Inc. (1.15Mn), THRIVENT FINANCIAL FOR LUTHERANS (880.46K), Bank Of America Corp /De/ (454.19K), Jpmorgan Chase & Co (397.99K), PZENA INVESTMENT MANAGEMENT LLC (337.13K).
• MasterBrand's 10 largest shareholders as of December 2025 include BlackRock, Inc. (19.36Mn), Coliseum Capital Management, LLC (10.77Mn), Gates Capital Management, Inc. (9.23Mn), VANGUARD GROUP INC (9.08Mn), Boston Partners (8.7Mn), DIMENSIONAL FUND ADVISORS LP (6.56Mn), Diameter Capital Partners LP (6.01Mn), State Street Corp (4.96Mn), Sixth Street Partners Management Company, L.P. (4.91Mn), Pertento Partners LLP (3.88Mn) per Business Quant data.