X0306 4 2023-02-07 0000062996 MASCO CORP /DE/ MAS 0001599376 Allman Keith J. 17450 COLLEGE PARKWAY LIVONIA MI 48152 1 1 President and CEO Common Stock 2023-02-07 4 M 0 45448.0000 35.5200 A 303533.0000 D Common Stock 2023-02-07 4 S 0 8591.0000 54.5000 D 294942.0000 D Common Stock 2023-02-07 4 S 0 36857.0000 53.8300 D 258085.0000 D Employee Stock Option 35.5200 2023-02-07 4 M 0 45448.0000 D 2029-02-07 Common Stock 45448.0000 181792.0000 D This transaction was made pursuant to a 10b5-1 trading plan entered into by the reporting person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.32 to $54.71, inclusive. The reporting person undertakes to provide to Masco Corporation, any security holder of Masco Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.32 to $54.31, inclusive. This option, representing a right to purchase a total of 227,240 shares, is exercisable in five equal annual installments of 45,448 shares commencing February 7, 2020. Grant of option under the Masco Corporation 2014 Long Term Stock Incentive Plan in transactions exempt under Rule 16b-3. Yvette M. VanRiper by Power of Attorney 2023-02-09