[Form 4] WD 40 CO Insider Trading Activity

Rhea-AI Filing Summary

WD-40 Company (WDFC) director David Pendarvis reported an open-market purchase of 523 common shares on 10/30/2025 at $196.37 per share. After this trade, his directly beneficially owned balance is 5,862 shares.

A footnote explains the total reflects 851 shares acquired via stock purchases and 5,011 vested RSUs treated as common stock equivalents (previously reported as 5,018 in error). The vested RSUs will be settled in common stock upon termination of his board service.

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

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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^*

PENDARVIS DAVID

(Last) (First) (Middle)

C/O: WD-40 COMPANY

9715 BUSINESSPARK AVENUE

(Street)

SAN DIEGO CA 92131

(City) (State) (Zip)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/30/2025

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

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

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

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	10/30/2025		P		523	A	$196.37	5,862(1)	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: (i) 851 shares acquired via stock purchases by Reporting Owner, and (ii) 5,011 vested RSUs (previously reported as 5,018 in error) treated as common stock equivalents. Following termination of Reporting Person's service as a director, vested RSUs will be settled with Issuer's common stock.

	Ann T. Nguyen, attorney-in-fact for David Pendarvis	10/30/2025
	** 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.

FAQ

What insider transaction did WDFC report on Form 4?

Director David Pendarvis purchased 523 shares of WD-40 Company common stock at $196.37 on 10/30/2025.

How many WDFC shares does the reporting person own after the trade?

Following the transaction, he directly beneficially owns 5,862 shares.

What is the price per share for the WDFC insider purchase?

The reported purchase price was $196.37 per share.

What does the footnote say about RSUs in this WDFC filing?

Holdings include 5,011 vested RSUs treated as common stock equivalents, to be settled in common stock after board service ends.

Was there a correction noted in the RSU count?

Yes. The RSUs were previously reported as 5,018 in error; the corrected figure is 5,011.

What is the reporting person’s role at WD-40 Company (WDFC)?

The reporting person is a Director of WD-40 Company.

What SEC form was used for the WDFC insider transaction?

The transaction was disclosed on Form 4.