X0508 4 2025-12-16 0 0001718227 Construction Partners, Inc. ROAD 0001739309 McKay Michael H 290 HEALTHWEST DRIVE, SUITE 2 DOTHAN AL 36303 1 0 0 0 0 Class A Common Stock 2025-12-16 5 G 0 E 1000 0 D 22192 I By Michael H. McKay Trust Class B Common Stock Class A Common Stock 8000 8000 D Class B Common Stock Class A Common Stock 73197 73197 I By Michael H. McKay Trust The reported transaction represents a charitable donation of shares of Class A common stock, $0.001 par value ("Class A common stock"), of Construction Partners, Inc. (the "Issuer") by the reporting person. The reported shares are held by a trust for which the reporting person serves as sole trustee, and in such capacity shares the power to vote and direct the disposition of such shares. Each share of Class B common stock, $0.001 par value ("Class B common stock"), of the Issuer is convertible into one share of Class A common stock (i) at any time at the option of the holder or (ii) upon any transfer, except for certain transfers described in the Issuer's amended and restated certificate of incorporation. In addition, upon the election of the holders of a majority of the then-outstanding shares of Class B common stock, all outstanding shares of Class B common stock will be converted into shares of Class A common stock. The holders of Class A common stock and Class B common stock vote as a single class on all matters submitted to a vote of stockholders. The holders of Class A common stock are entitled to one vote per share, and the holders of the Class B common stock are entitled to 10 votes per share. The shares of Class B common stock do not expire. Includes 8,000 restricted shares of Class B common stock with time-based vesting criteria previously granted under the Construction Partners, Inc. 2024 Restricted Stock Plan that vest as follows: (i) 5,333 shares on January 1, 2027 and (ii) 2,667 shares on January 1, 2028. Under the terms of the award agreement, the reporting person has sole voting power with respect to the shares. /s/ Michael H. McKay 2025-12-16