X0306 4 2018-07-27 0000795403 WATTS WATER TECHNOLOGIES INC WTS 0001299653 Pagano Robert J Jr 815 CHESTNUT STREET NORTH ANDOVER MA 01845 1 President and CEO Class A Common Stock 2018-07-27 4 F 0 3623.0000 83.7500 D 127585.0000 D Represents the number of shares required to be withheld from the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock awarded to the Reporting Person on July 27, 2015. The withholding of shares to cover tax withholding obligations is mandated by the terms of the Reporting Person's restricted stock award under the Issuer's Second Amended and Restated 2004 Stock Incentive Plan and does not represent a discretionary trade by the Reporting Person. /s/ Amy B. Clark, Attorney-in-Fact 2018-07-30