X0306 4 2017-03-02 0 0000105016 WATSCO INC WSO; WSOB 0001243203 NAHMAD ALBERT H 2665 S. BAYSHORE DRIVE SUITE 901 COCONUT GROVE FL 33133 1 1 0 0 Chairman and CEO Common Stock 2017-03-02 4 J 0 26 148.12 A 1353 I See footnote Class B Common Stock 2017-03-02 4 A 0 15353 148.75 A Class B Common Stock 15353 2172182 D Class B Common Stock Class B Common Stock 524463 524463 I See footnote Class B Common Stock Class B Common Stock 1330000 1330000 I See footnote Class B Common Stock Class B Common Stock 297079 297079 D Ownership in Watsco, Inc. Profit Sharing Retirement Plan and Trust. The Class B Common Stock is convertible into Common Stock at any time on a one-for-one basis and has no expiration date. Award of stock pursuant to Watsco, Inc. Restricted Stock Agreement. Reflects 498,845 shares held by various trusts over which Mr. Nahmad maintains effective control and 25,618 shares held by custodial accounts for Mr. Nahmad's grandchildren, of which Mr. Nahmad is the custodian. Reflects shares owned by Albert Capital LP, a limited partnership, over which Mr. Nahmad maintains effective control. Albert H. Nahmad 2017-03-06