WD-40 grants controller Giordano 257 stock units

The award is scheduled to vest annually over three years, except as otherwise provided in the RSU award agreement.

Rhea-AI Filing Summary

WD-40 Company (WDFC) VP, Corporate Controller & CAO Nicholas Daniel Giordano received a grant of 257 restricted stock units on October 8, 2026, under the WD-40 Company 2016 Stock Incentive Plan, as amended and restated effective December 12, 2023. The units vest annually over three years, except as otherwise provided in the award agreement. His reported post-transaction position was 597 shares; the footnote says this amount includes 359 unvested RSUs, including this grant, and 21 shares of restricted Common Stock received upon settlement of performance share units.

Insider Trade Summary

Grant/Award: 257 shares

Grant/Award 1 txn

Insider GIORDANO NICHOLAS DANIEL

Role VP, Corporate Controller & CAO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1, F2	257	--	--

Holdings After Transaction: Common Stock — 597 shares (Direct)

Footnotes (2)

1. F1. Represents a grant of restricted stock units (RSUs) under the WD-40 Company 2016 Stock Incentive Plan, as amended and restated effective December 12, 2023. Except as otherwise provided in the RSU award agreement, the RSUs vest annually over 3 years.
2. F2. As of the filing date, the amount reported includes: (i) 359 unvested RSUs (which include the grant of RSUs reported in this Form 4), and (ii) 21 shares of restricted Common Stock received upon settlement of performance share units or PSUs.

Key Figures

Restricted stock units granted: 257 restricted stock units Reported post-transaction position: 597 shares Unvested RSUs: 359 RSUs +2 more

5 metrics

Restricted stock units granted 257 restricted stock units October 8, 2026

Reported post-transaction position 597 shares Following the reported grant

Unvested RSUs 359 RSUs As of the filing date; includes the reported grant

Restricted Common Stock 21 shares Received upon settlement of performance share units

Vesting period 3 years Annual vesting, except as otherwise provided in the award agreement

Key Terms

restricted stock units (RSUs), WD-40 Company 2016 Stock Incentive Plan, performance share units (PSUs)

3 terms

restricted stock units (RSUs) financial

"grant of restricted stock units (RSUs) under the WD-40 Company"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

WD-40 Company 2016 Stock Incentive Plan financial

"under the WD-40 Company 2016 Stock Incentive Plan"

performance share units (PSUs) financial

"settlement of performance share units or PSUs"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many RSUs did WDFC's VP receive?

WD-40 Company VP, Corporate Controller & CAO Nicholas Daniel Giordano received 257 restricted stock units on October 8, 2026, under the WD-40 Company 2016 Stock Incentive Plan, as amended and restated effective December 12, 2023.

When do WDFC's RSUs vest?

The RSUs vest annually over three years, except as otherwise provided in the RSU award agreement.

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

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Available on EDGAR 10/13/2026 - 07:12 PM EDT Accepted by SEC EDGAR 10/13/2026 - 07:11 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^*

GIORDANO NICHOLAS DANIEL

(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, Corporate Controller & CAO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/08/2026

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	10/08/2026		A		257	A	(1)	597(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. Represents a grant of restricted stock units (RSUs) under the WD-40 Company 2016 Stock Incentive Plan, as amended and restated effective December 12, 2023. Except as otherwise provided in the RSU award agreement, the RSUs vest annually over 3 years.

2. As of the filing date, the amount reported includes: (i) 359 unvested RSUs (which include the grant of RSUs reported in this Form 4), and (ii) 21 shares of restricted Common Stock received upon settlement of performance share units or PSUs.

	Ann T. Nguyen, as attorney-in-fact for Nicholas D. Giordano	10/13/2026
	** 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)