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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
105132	Wd 40 Co	WDFC	Miscellaneous Chemical Products (2890)	951797918

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1191649	O Garry Ridge	1061 Cudahy Place San Diego CA 92110	President & Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-12-15	2,400	$27.56	65,025	No	4	M	Direct
Common Stock	Disposition	2010-12-15	2,400	$41.39	62,625	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-qualified Stock Option	Disposition	2010-12-15	2,400	$0.00	2,400	$27.56

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2005-09-24	2012-09-24	No	4	M	Direct

Footnotes

Transaction pursuant to trading plan adopted pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934.
Total includes 1,092 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 20,468 Restricted Stock Units, of which 16,545 are subject to future vesting, and 19,200 Performance Share Units, all of which are subject to future vesting.
Not applicable.
In addition to the reported options in Table II, the reporting person holds options to acquire 161,000 common shares as follows: 30,000 non-qualified stock options (NQSO) exercisable 9/23/06 at $29.30 expiring 9/23/13; 12,000 NQSO exercisable 10/19/07 at $27.67 expiring 10/19/14; 24,000 NQSO exercisable 10/18/08 at $27.27 expiring 10/18/15; 35,000 NQSO exercisable 10/17/09 at $35.99 expiring 10/17/16;and 60,000 NQSO exercisable 10/16/10 at $36.03 expiring 10/16/17.