Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities and Exchange Act of 1934 For the Fiscal Year Ended December 31, 2021 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 1-5581 WATSCO, INC. 2665 South Bayshore Drive, Suite 901 Miami, FL 33133 (Address of principal executive offices, including zi ...