WD 40 CO — Director's Dealing 2025

Dec 12, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WD 40 CO (WDFC)
CIK: 0000105132
Period of Report: 2025-12-12

Reporting Person: Etchart Eric (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-12	Common Stock	A	612	—	Acquired	8982	Direct
2025-12-12	Common Stock	A	367	—	Acquired	9349	Direct

Footnotes

F1: Represents a restricted stock unit ("RSU") award covering shares of Issuer's common stock granted in accordance with Issuer's Directors' Compensation Policy and Election Plan adopted on June 16, 2025 ("2025 Directors' Compensation Policy"). This RSU award, which was granted effective December 12, 2025 and had an aggregate fair market value of approximately $125,000 on such date, is the non-elective portion of annual director compensation and vests upon grant.

F2: Represents an elective RSU award covering shares of Issuer's common stock granted in accordance the 2025 Directors' Compensation Policy. This RSU award, which was granted effective December 12, 2025 ("Grant Date") and was in lieu of receiving cash for annual base compensation for directors, had an aggregate fair market value of approximately $75,000 on the Grant Date. Unless as otherwise provided in the 2025 Directors' Compensation Policy, and subject to continuous service as a director, the RSU award vests 1/12th per month over one year commencing on the first day of the calendar month after the Grant Date.

F3: Represents: (i) 2,000 shares acquired via stock purchases by Reporting Owner, (ii) 6,982 vested RSUs treated as common stock equivalents, and (iii) 367 unvested RSUs. Following termination of Reporting Person's service as a director, vested RSUs will be settled with Issuer's common stock.