Page 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended August 31 , 2021 For the transition period from TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 to Delaware ( State or other jurisdiction of incorporation or organization ) Title of each class Common stock , par value $ 0.001 or 9715 Businesspark Avenue , San Diego , California ( Address of principal executive offices ) Commission File Number : 000-06936 Commission Company Name : WD 40 CO WD - 40 COMPANY ( Exact name of registrant as specified in its charter ) per 95-1797918 ( I.R.S. Employer Identification No. ) Registrant's telephone number , including area code : ( 619 ) 275-1400 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol WDFC share Securities registered pursuant to Section 12 ( g ) of the Act : Title of each class None 92131 ( Zip code ) Name of exchange on which registered NASDAQ Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes þ No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes No p