Ken Allen Plunk - 18 Feb 2026 Form 4 Insider Report for WD 40 CO (WDFC)

Role: Director
Signature: Ann T. Nguyen, attorney-in-fact for Ken Allen Plunk
Issuer symbol: WDFC
Transactions as of: 18 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 19 Feb 2026, 18:07:00 UTC
Previous filing: 18 Nov 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Plunk Ken Allen	Director	C/O: WD-40 COMPANY, 9715 BUSINESSPARK AVENUE, SAN DIEGO	Ann T. Nguyen, attorney-in-fact for Ken Allen Plunk	19 Feb 2026	0001826410

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WDFC	Common Stock	Award		+515			515	18 Feb 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reporting person was appointed as a director to Issuer's Board of Directors effective February 18, 2026. Acquisition reported 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. This RSU award, which was granted effective February 18, 2026 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 fully vested RSUs treated as common stock equivalents. Following termination of the Reporting Person's service as a director, the RSUs will be settled with Issuer's common stock.

Content

Reporting person was appointed as a director to Issuer's Board of Directors effective February 18, 2026. Acquisition reported 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. This RSU award, which was granted effective February 18, 2026 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.

Represents fully vested RSUs treated as common stock equivalents. Following termination of the Reporting Person's service as a director, the RSUs will be settled with Issuer's common stock.