X0306 4 2017-11-13 0000062996 MASCO CORP /DE/ MAS 0001182556 VAN LOKEREN MARY ANN P.O. BOX 2027 BOCA GRANDE FL 33921 1 Common Stock 2017-11-13 4 S 0 14850.0000 38.8450 D 47909.0000 D Common Stock 2017-11-13 4 S 0 2000.0000 38.8450 D 0.0000 I By Trust The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.8300 to $38.8610, 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 (1) and (2) 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 $38.8300 to $38.8610, inclusive. Yvette M. VanRiper by Power of Attorney 2017-11-14