WD-40 CFO Hyzer has 693 shares withheld for taxes

The withholding covered tax obligations tied to the vesting of 1,359 restricted stock units.

Rhea-AI Filing Summary

WD-40 Company VP, Finance & CFO Sara Kathleen Hyzer had 693 shares withheld on October 26, 2026, to satisfy tax withholding obligations upon vesting of 1,359 RSUs. Her reported direct position after the transaction was 7,217 shares; the reported amount includes 3,507 unvested RSUs, 71 restricted Common Stock shares received upon settlement of PSUs, and 833 shares in her WD-40 Company Profit Sharing / 401(k) Plan account.

Insider Trade Summary

Tax Withholding: 693 shares

Tax Withholding 1 txn

Insider HYZER SARA KATHLEEN

Role VP, Finance & CFO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F2, F1	693	--	--

Holdings After Transaction: Common Stock — 7,217 shares (Direct)

Footnotes (2)

1. F1. Shares withheld pursuant to mandatory provisions of Restricted Stock Unit (RSU) Award Agreement(s) in satisfaction of tax withholding obligations upon vesting of 1,359 RSUs.
2. F2. Amount reported includes: (i) 3,507 unvested RSUs, (ii) 71 shares of restricted Common Stock received upon settlement of performance share units or PSUs, and (iii) 833 shares held in Reporting Person's WD-40 Company Profit Sharing / 401(k) Plan account.

Key Figures

Shares Withheld: 693 shares RSUs Vested: 1,359 RSUs Reported Direct Position After Transaction: 7,217 shares +3 more

6 metrics

Shares Withheld 693 shares Withheld October 26, 2026, for tax obligations upon RSU vesting

RSUs Vested 1,359 RSUs Vesting associated with the tax withholding on October 26, 2026

Reported Direct Position After Transaction 7,217 shares Reported position following the October 26, 2026 transaction

Unvested RSUs Included 3,507 RSUs Included in the reported post-transaction amount

Restricted Common Stock from PSU Settlement 71 shares Included in the reported post-transaction amount

Shares in WD-40 Company Profit Sharing / 401(k) Plan 833 shares Included in the reported post-transaction amount

Key Terms

Restricted Stock Unit (RSU) Award Agreement(s), performance share units or PSUs, tax withholding obligations

3 terms

Restricted Stock Unit (RSU) Award Agreement(s) financial

"mandatory provisions of Restricted Stock Unit (RSU) Award Agreement(s)"

performance share units or PSUs financial

"received upon settlement of performance share units or PSUs"

tax withholding obligations financial

"in satisfaction of tax withholding obligations"

FAQ

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How many WDFC shares did its CFO have withheld?

Sara Kathleen Hyzer, WD-40 Company’s VP, Finance & CFO, had 693 shares withheld on October 26, 2026, to satisfy tax obligations when 1,359 RSUs vested. Her reported direct position afterward was 7,217 shares; that amount includes 3,507 unvested RSUs, 71 restricted Common Stock shares received upon PSU settlement, and 833 shares in the company’s 401(k) plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/27/2026 - 08:56 PM EDT Accepted by SEC EDGAR 10/27/2026 - 08:55 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

HYZER SARA KATHLEEN

(Last) (First) (Middle)

C/O: WD-40 COMPANY

9715 BUSINESSPARK AVENUE

(Street)

SAN DIEGO CALIFORNIA 92131

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
WD 40 CO [ WDFC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Finance & CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/26/2026		F		693(2)	D	(1)	7,217(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares withheld pursuant to mandatory provisions of Restricted Stock Unit (RSU) Award Agreement(s) in satisfaction of tax withholding obligations upon vesting of 1,359 RSUs.

2. Amount reported includes: (i) 3,507 unvested RSUs, (ii) 71 shares of restricted Common Stock received upon settlement of performance share units or PSUs, and (iii) 833 shares held in Reporting Person's WD-40 Company Profit Sharing / 401(k) Plan account.

	Ann T. Nguyen, attorney-in-fact for Sara K. Hyzer	10/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)