Sara K. Hyzer - 27 Oct 2025 Form 4 Insider Report for WD 40 CO (WDFC)

Role: VP, Finance & CFO
Signature: Ann T. Nguyen, attorney-in-fact for Sara K. Hyzer
Issuer symbol: WDFC
Transactions as of: 27 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 28 Oct 2025, 19:38:54 UTC
Previous filing: 10 Oct 2025
Next filing: 29 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HYZER SARA KATHLEEN	VP, Finance & CFO	C/O: WD-40 COMPANY, 9715 BUSINESSPARK AVE., SAN DIEGO	Ann T. Nguyen, attorney-in-fact for Sara K. Hyzer	28 Oct 2025	0001951273

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WDFC	Common Stock	Tax liability		-533	-7.9%		6,190	27 Oct 2025	Direct	F1
transaction	WDFC	Common Stock	Tax liability		-455	-7.4%		5,735	27 Oct 2025	Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Shares withheld pursuant to mandatory provisions of Restricted Stock Unit (RSU) Award Agreement(s) in satisfaction of tax withholding obligations upon vesting of 1,048 RSUs.
F2	Shares withheld pursuant to mandatory provisions of Market Share Unit (MSU) Award Agreement in satisfaction of tax withholding obligations upon vesting of 895 MSUs.
F3	Amount reported includes: (i) 2,905 unvested RSUs, (ii) 71 shares of restricted Common Stock received upon settlement of performance stock units or PSUs, and (iii) 619 shares held in Reporting Person's WD-40 Company Profit Sharing / 401(k) Plan account.