The current institutional shareholding score of Masco Corp is 10.00, ranking 1 out of 56 in the Homebuilding & Construction Supplies industry. The latest institutional shareholding proportion is 105.58%, representing a quarter-over-quarter increase of 6.37%. The largest institutional shareholder is David G. Herro, holding a total of 7.40M shares, representing 4.26% of shares outstanding, with 0.03% decrease in holdings.