X0306 4 2022-02-18 0001057379 HACKETT GROUP, INC. HCKT 0001250781 HAMLIN RICHARD N C/O THE HACKETT GROUP, INC., 1001 BRICKELL BAY DRIVE, SUITE 3000 MIAMI FL 33131 1 0 0 0 Common Stock 2022-02-18 4 A 0 3744 0 A 53936 D Common Stock 1300 I By Spouse in IRA Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 18, 2023. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis. Includes 3,744 unvested RSUs. /s/ Frank A. Zomerfeld, Attorney-in-Fact 2022-02-23