UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2019 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 001-11499 WATTS WATER TECHNOLOGIES, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 04-2916536 (State or Other Jurisdiction ...