Welcome to our dedicated page for MasterBrand SEC filings (Ticker: MBC), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
MasterBrand, Inc. SEC filings document the reporting obligations of a NYSE-listed residential cabinetry manufacturer. The company’s Form 8-K filings cover operating and financial results, Regulation FD materials, material-event disclosures and amendments to credit agreements, including related capital-structure and covenant disclosures.
Proxy materials address annual meeting matters, board governance, executive compensation and shareholder voting. The filing record also documents the company’s common stock registration, governance matters, risk disclosures and formal records related to financing arrangements and other material agreements.
Coliseum Capital affiliates disclosed passive ownership stakes in MasterBrand, Inc. (MBC). Coliseum Capital Management, LLC reports shared beneficial ownership of 6,960,829 shares, equal to 5.5% of the outstanding common stock based on 126,730,924 shares outstanding as of August 1, 2025. Coliseum Capital, LLC and Coliseum Capital Partners, L.P. each report beneficial ownership of 5,700,896 shares (4.5%). Adam Gray and Christopher Shackelton are reported with shared ownership of 6,960,829 shares (5.5%). The filing states the positions were not acquired to influence control and identifies CCP as record owner of 5,700,896 shares and a Separate Account holding 1,259,933 shares.
Gates Capital Management and affiliated entities report beneficial ownership of 12,024,816 shares of MasterBrand, Inc. common stock, representing 9.5% of the outstanding class based on 126,730,924 shares outstanding per the issuer's filing. The reported position is held with shared voting and shared dispositive power of 12,024,816 shares and no sole voting or dispositive power. The filing is a Schedule 13G/A indicating the stake is reported as held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
Boston Partners filed a Schedule 13G/A disclosing beneficial ownership of 7,931,062 shares of MasterBrand, Inc. common stock, representing 6.26% of the class as of 6/30/2025. The filing shows sole voting power over 7,362,454 shares and sole dispositive power over 7,931,062 shares; shared voting and dispositive powers are reported as 0. The shares are held in discretionary client accounts and, by rule, Boston Partners may be deemed a beneficial owner of the reported shares.
The statement includes a certification that the holdings were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control. No group affiliation, subsidiary acquisition, or dissolution of a group is reported. The filing is signed by Akiko Lindholm, Senior Compliance Officer, dated 08/08/2025.