X0306 4 2022-10-10 0 0000105132 WD 40 CO WDFC 0001691913 Brass Steven A C/O: WD-40 COMPANY 9715 BUSINESSPARK AVENUE SAN DIEGO CA 92131 1 1 0 0 President and CEO Common Stock 2022-10-10 4 A 0 3752 A 15389 D Represents a grant of restricted stock units (RSUs) under the WD-40 Company 2016 Stock Incentive Plan. Except as otherwise provided in the RSU award agreement, the RSUs vest annually over 3 years. Total includes: (i) 973 shares of restricted Common Stock received upon settlement of performance share units or PSUs, (ii) 7,383 unvested RSUs (which include the grant of RSUs reported in this Form 4), and (iii) 108 vested deferred performance units or DPUs, which are Common Stock equivalents. See attached Power of Attorney dated March 2, 2022. Phenix Q. Kiamilev, as attorney-in-fact for Steven A. Brass 2022-10-12