Masonite International CORP: management transactions · United States · SEC (Form 4)

About Masonite International CORP

Masonite International Corp. was a U.S.-listed company on the NYSE/NASDAQ under ticker DOOR, historically headquartered in the United States and widely recognized as one of the leading global manufacturers of interior and exterior doors. Founded in 1925 in Laurel, Mississippi, by William H. Mason, the company originally developed around fiber-based building materials and later evolved into a specialized door platform with a broad portfolio of systems and components. Its long-standing North American industrial footprint and historic base in Tampa, Florida, reinforced its proximity to major residential construction and building-products distribution channels. ([sec.gov](https://www.sec.gov/Archives/edgar/data/893691/000089369124000011/door-20231231.htm?utm_source=openai)) Operationally, Masonite designs, manufactures, markets, and distributes interior and exterior doors and door systems, with primary exposure to U.S. and international residential new construction as well as repair and remodeling activity. The company also served select non-residential end markets, but its core business was tied to housing, renovation, and the broader building envelope ecosystem. Its product set included molded doors, wood doors, engineered doors, door frames, system components, and more integrated door solutions aimed at improving durability, appearance, and performance. Masonite was consistently described as a leading global designer and distributor in its category, supported by a broad customer base across the building-products supply chain. ([sec.gov](https://www.sec.gov/Archives/edgar/data/893691/000089369123000049/door-20230702.htm?utm_source=openai)) From a competitive standpoint, Masonite operated in a highly fragmented but intensely contested market, where success depends on product innovation, manufacturing scale, channel relationships, and service levels. The company’s strategy increasingly emphasized “door systems” rather than standalone doors, allowing it to capture more value per project and expand into higher-value niche applications. Recent strategic moves included the acquisition of Endura Products in January 2023 and Fleetwood Aluminum Products in October 2023, both aimed at broadening the portfolio and strengthening its position in differentiated segments of the market. ([sec.gov](https://www.sec.gov/Archives/edgar/data/893691/000089369123000003/a20230103ex991pressrelease.htm?utm_source=openai)) The key recent milestone was Owens Corning’s acquisition of Masonite, completed on May 15, 2024. That transaction effectively removed Masonite as an independent public company and folded its doors business into a larger building-materials platform. For investors, Masonite is best viewed as a cyclical U.S. housing-related industrial company with global reach, strong brand and product depth, and a history of portfolio expansion through targeted M&A. Its relevance in the NYSE/NASDAQ universe today is mainly historical/transactional, but its business remains important within the United States residential building-products market. ([sec.gov](https://www.sec.gov/Archives/edgar/data/0001370946/000162828025022858/oc-20250331.htm?utm_source=openai))