MARK A YOUNG plan to sell securities of MasterBrand, Inc. under Form 144

MARK A YOUNG filed Form 144 to notify SEC of plan to sell 11765 units of MasterBrand, Inc. securities around 2026-06-01, with aggregate market value of $101,179.00. The total outstanding units is 127984590.0. The amount planned to be sold represents 0.01% of total outstanding units;