DANIEL T. CARTER - 12 Dec 2025 Form 4 Insider Report for WD 40 CO (WDFC)

Role: Director
Signature: Ann T. Nguyen, attorney-in-fact for Daniel T. Carter
Issuer symbol: WDFC
Transactions as of: 12 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 12 Dec 2025, 20:11:23 UTC
Previous filing: 27 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
CARTER DANIEL T	Director	C/O: WD-40 COMPANY, 9715 BUSINESSPARK AVENUE, SAN DIEGO	Ann T. Nguyen, attorney-in-fact for Daniel T. Carter	12 Dec 2025	0001117949

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WDFC	Common Stock	Award		+612	+8.5%		7,817	12 Dec 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
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. 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: (i) 1,000 shares acquired via stock purchase by Reporting Owner, and (ii) 6,817 vested RSUs treated as common stock equivalents. Following termination of the Reporting Person's service as a director, vested RSUs will be settled with Issuer's common stock.

Content

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 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.

Represents: (i) 1,000 shares acquired via stock purchase by Reporting Owner, and (ii) 6,817 vested RSUs treated as common stock equivalents. Following termination of the Reporting Person's service as a director, vested RSUs will be settled with Issuer's common stock.