X0306 4 2020-03-23 0000795403 WATTS WATER TECHNOLOGIES INC WTS 0001661822 Halloran Virginia A 815 CHESTNUT STREET NORTH ANDOVER MA 01845 1 Chief Accounting Officer Class A Common Stock 2020-03-23 4 F 0 82.0000 72.4300 D 10999.0000 D Represents shares disposed to cover taxes upon the vesting of a restricted stock award granted to the Reporting Person on March 21, 2017. The disposition of shares to cover tax withholding obligations is required by the terms of the Reporting Person's grant agreement and does not represent a discretionary transaction by the Reporting Person. /s/ Seth M. Kipp, Attorney-in-Fact 2020-03-24