X0306 4 2018-11-13 0000062996 MASCO CORP /DE/ MAS 0001623468 O'Reagan Richard A. 17450 COLLEGE PARKWAY LIVONIA MI 48152 1 Group President Common Stock 2018-11-13 4 S 0 12900.0000 31.4847 D 61443.0000 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.470 to $31.495, 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 this footnote (1) this Form 4. Yvette M. VanRiper by Power of Attorney 2018-11-14