Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Mitchell Maria
 2. Date of Event Requiring Statement (Month/Day/Year)
12/14/2010		 3. Issuer Name and Ticker or Trading Symbol
WD 40 CO [WDFC]
(Last)
(First)
(Middle)
1061 CUDAHY PLACE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Section 16 Reporting Person
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SAN DIEGO, CA 92110		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 8,520 (1)
D (2)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non-qualified Stock Option 09/23/2006 09/23/2013 Common Stock 3,000 $ 29.3 D  
Non-qualified Stock Option 10/18/2008 10/18/2015 Common Stock 5,000 $ 27.27 D  
Non-qualified Stock Option 10/17/2009 10/17/2016 Common Stock 5,000 $ 35.99 D  
Non-qualified Stock Option 10/16/2010 10/16/2017 Common Stock 6,160 $ 36.03 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Mitchell Maria
1061 CUDAHY PLACE
SAN DIEGO, CA 92110		       Section 16 Reporting Person

Signatures

Maria M. Mitchell 12/23/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) Total includes 597 shares held in WD-40 Company Profit Sharing Plan (Company Stock Fund) account; estimated number of shares based upon equivalent value of units held. Total also includes 4,769 Restricted Stock Units, all of which are subject to future vesting.
(2) On December 14, 2010, the Reporting Person was designated as an Officer for purposes of Section 16(a) by the Issuer's Board of Directors.

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