WATSCO INC

During the quarter ended December 31, 2024, none of our officers or directors adopted or terminated any contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule

10b5-1(c)

under the Exchange Act or any

“non-Rule

10b5-1

trading arrangement

,

” as defined in Item 408 of Regulation

S-K.

Appointment of Director

On February 25, 2025, the Board of Directors appointed Gary L. Tapella, 81, as a Common stock director to fill the vacancy on the Board of Directors formerly held by John A. Macdonald, whose term as a director expired at Watsco’s 2024 annual meeting of shareholders. The Board of Directors nominated Mr. Tapella to stand for election at the Company’s 2025 annual shareholder meeting for a term to expire at the Company’s 2028 annual meeting of shareholders.

Mr. Tapella has served on Watsco’s Advisory Board since February 2022 and previously served as a Watsco director from 2006 to 2010. Mr. Tapella retired in 2005 after a 36-year career with Rheem Manufacturing Company, one of the Company’s principal suppliers, where he served in various leadership capacities, ultimately as President and Chief Executive Officer. Presently, he serves as an Operating Partner of One Rock Capital Partners, LLC, a value-oriented, operationally focused private equity firm. Prior to joining One Rock he was an Operating Partner at Ripplewood Holdings, LLC from 2005 to 2009.

Mr. Tapella will participate in the standard non-employee director compensation arrangements described in the section entitled “Director Compensation” that is included in the Company’s 2024 Proxy Statement filed with the Securities and Exchange Commission on April 26, 2024.

There are no arrangements or understandings between either Mr. Tapella, on the one hand, and any other person, on the other hand, pursuant to which he was appointed to the Board of Directors. Since the beginning of the Company’s last fiscal year, the Company has not engaged in any transactions, and there are no proposed transactions, or series of similar transactions, in which Mr. Tapella was or is to be a participant and in which any related person had a direct or indirect material interest in which the amount involved exceeds or exceeded $120,000.