X0306 4 2022-10-24 0 0000105132 WD 40 CO WDFC 0001213639 REMBOLT JAY C/O: WD-40 COMPANY 9715 BUSINESSPARK AVENUE SAN DIEGO CA 92131 0 1 0 0 VP, Finance, Treasurer & CFO Common Stock 2022-10-24 4 F 0 268 D 44126 D Shares withheld pursuant to mandatory provisions of Restricted Stock Unit (RSU) Award Agreement(s) in satisfaction of tax withholding obligations upon vesting of 772 RSUs. Total includes: (i) 6,712 shares held in the WD-40 Company Profit Sharing Plan / 401(k) Plan (Company Stock Fund account), (ii) 524 shares of restricted Common Stock received upon settlement of performance share units or PSUs, (iii) 3,344 unvested RSUs, and (iv) 310 vested deferred performance units or DPUs, which are Common Stock equivalents. Immaterial increases in shares held in the Common Stock Fund account are due to stock dividends received periodically. Phenix Q. Kiamilev, attorney-in-fact for Jay Rembolt 2022-10-25