content: UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  
  FORM 144
  
  NOTICE OF PROPOSED SALE OF SECURITIES
  PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
  
  ATTENTION: Transmit for filing 3 copies of this form concurrently with
  either placing an order with a broker to execute sale or executing a
  sale directly with a market maker.
  1 (a) NAME OF ISSUER (Please type or print)
  (b) IRS IDENT. NO.
  (c) S.E.C. FILE NO.
  WORK LOCATION
  WD-40 Company
  95-1797918
  000-06936
    United States
  1 (d) ADDRESS OF ISSUER
  STREET
  CITY
  STATE
  ZIP CODE
  (e) TELEPHONE NO.
  
  1061 Cudahy Place
  San Diego
  CA
  92110
  AREA CODE
  NUMBER
  
  
  
  
  
  619
  275-1400
  2 (a) NAME OF PERSON FOR WHOSE ACCOUNT THE SECURITIES ARE TO BE SOLD
  (b) IRS IDENT. NO.
  (c) RELATIONSHIP TO ISSUER
  (d) ADDRESS STREET
  CITY
  STATE
  ZIP CODE
  
  Garry O. Ridge
  ###-##-####
  Director, CEO
  1061 Cudahy Place
  San Diego
  CA
  92110
  
  INSTRUCTION:  The person filing this notice should contact the issuer
  to obtain the I.R.S. Identification Number and the S.E.C. File Number.
  3 (a)
  Title of the Class of Securities To Be Sold
  (b)
  Name and Address of Each Broker Through Whom the Securities are to be
  Offered or Each Market Maker who is Acquiring the Securities
  SEC USE ONLY
  (c)
  Number of Shares
  or Other Units
  To Be Sold
  (See instr. 3(c))
  (d)
  Aggregate
  Market
  Value
  (See instr. 3(d))
  (e)
  Number of Shares
  or Other Units
  Outstanding
  (See instr. 3(e))
  (f)
  Approximate Date of Sale
  (See instr. 3(f))
  (MO. DAY YR.)
  (g)
  Name of Each Securities Exchange
  (See instr. 3(g))
  
  
  
  
  Broker-Dealer
  File Number
  
  
  
  
  
  
  
  
  
  
  Common Stock
  Computershare Securities Corp.
  2 North LaSalle Street
  Chicago, IL  60602
  
  Broadcort Correspondent Clearing Division
  Merrill, Lynch, Pierce, Fenner & Smith Incorporated
  101 Hudson Street, 7th Floor
  Jersey City, New Jersey 07302
  
  20,000
  $628,600 (1)
  16,796,332
  (2)
  NASDAQ
  INSTRUCTIONS:
  1.
  (a)
  Name of issuer
  3.
  (a)
  Title of the class of securities to be sold
  
  (b)
  Issuer's I.R.S. Identification Number
  
  (b)
  Name and address of each broker through whom the securities
  are intended to be sold
  
  (c)
  Issuer's S.E.C. file number, if any
  
  (c)
  Number of shares or other units to be sold (if debt securities, give the
  aggregate face amount)
  
  (d)
  Issuer's address, including zip code
  
  (d)
  Aggregate market value of the securities to be sold as of a specified
  date within 10 days prior to the filing of this notice
  
  (e)
  Issuer's telephone number, including area code
  
  (e)
  Number of shares or other units of the class outstanding, or if debt
  securities the face amount thereof outstanding, as shown by the most recent
   report or statement published by the issuer
  
  
  
  
  (f)
  Approximate date on which the securities are to be sold
  2.
  (a)
  Name of person for whose account the securities are to be sold
  
  (g)
  Name of each securities exchange, if any, on which the securities
  are intended to be sold
  
  (b)
  Such person's I.R.S. identification number, if such person is an entity
  
  
  
  
  (c)
  Such person's relationship to the issuer (e.g., officer, director, 10%
  stockholder, or member of immediate family of any of the foregoing)
  
  
  
  
  (d)
  Such person's address, including zip code
  
  
  
  Potential persons who are to respond to the collection of information
  contained in this form are not required to respond unless the form displays
  a currently valid OMB control number.
  SEC 1147 (01-04)
  
  
  TABLE I -- SECURITIES TO BE SOLD
  Furnish the following information with respect to the acquisition of the
  securities to be sold and with respect to the payment of all or any part of
  the purchase price or other consideration therefor:
  
  Title of the Class
  Date you Acquired
  Nature of Acquisition Transaction
  Name of Person from Whom Acquired
  (If gift, also give date donor acquired)
  Amount of Securities Acquired
  Date of Payment
  Nature of Payment
  Common Stock
  (2)
  Exercise of non-qualified stock option
  WD-40 Company
  20,000
  (2)
  Sale Proceeds (2)INSTRUCTIONS:
  If the securities were purchased and full payment therefor was not made
  in cash at the time of purchase, explain in the table or in a note thereto
  the nature of the consideration given. If the consideration consisted of any
  note or other obligation, or if payment was made in installments describe the
   arrangement and state when the note or other obligation was discharged in
   full or the last installment paid.
   TABLE II -- SECURITIES SOLD DURING THE PAST 3 MONTHS
  Furnish the following information as to all securities of the
  issuer sold during the past 3 months by the person for whose account
  the securities are to be sold.
  
  Name and Address of Seller
  Title of Securities Sold
  Date of Sale
  Amount of Securities Sold
  Gross Proceeds
  Garry O. Ridge
  Common Stock
  4/18/06
  20,000
  $654,000
  REMARKS:
  (1)  Estimated based on the fair market value at market close
  on 4/28/06 of $31.43/share.
  (2)  These control securities, registered on Form S-8, will be
  acquired upon the proposed exercise of a non-qualified stock option and
  sold on the same day pursuant to a cashless stock option exercise transaction
  processed by the Issuer's stock option plan administrator.  The proposed
  transaction will be completed pursuant to a Rule 10b5-1 trading plan
  adopted by the reporting person on 4/17/06.  The representations of the
  reporting person regarding knowledge of material adverse information
  in regard to the current and prospective operations of the Issuer were
  made and they were true and correct as of the date of adoption of the
  Rule 10b5-1 trading plan.
  
  INSTRUCTIONS:
  
  ATTENTION:
  See the definition of "person" in paragraph (a) of Rule 144.
  Information is to be given not only as to the person for whose account
  the securities are to be sold but also as to all other persons included
  in that definition. In addition, information shall be given as to sales by
  all persons whose sales are required by paragraph (e) of Rule 144 to be
  aggregated with sales for the account of the person filing this notice.
  
  The person for whose account the securities to which this notice relates are
  to be sold hereby represents by signing this notice that he does not know
  any material adverse information in regard to the current and prospective
  operations of the Issuer of the securities to be sold which has not been
  publicly disclosed.
  
  4/28/06
  
  /s/ Maria M. Mitchell as Attorney in Fact for Garry O. Ridge
  DATE OF NOTICE
  
  (SIGNATURE)
  The notice shall be signed by the person for whose account the securities are
  to be sold. At least one copy of the notice shall be manually signed.
  Any copies not manually signed shall bear typed or printed signatures.
  ATTENTION: Intentional misstatements or omission of facts constitute
  Federal Criminal Violations (See 18 U.S.C. 1001)
  SEC 1147 (01-04)
metadata_documents: [{"type": "144", "sequence": "1", "filename": "gr060428.txt", "description": "GRIDGE 144 060501", "secsgml_size_bytes": 6646}, {"type": "144", "sequence": "2", "filename": "gr144060501.pdf", "description": "GRIDGE 144 060501 PDF", "secsgml_size_bytes": 47243}]
text: UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  
  FORM 144
  
  NOTICE OF PROPOSED SALE OF SECURITIES
  PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
  
  ATTENTION: Transmit for filing 3 copies of this form concurrently with
  either placing an order with a broker to execute sale or executing a
  sale directly with a market maker.
  1 (a) NAME OF ISSUER (Please type or print)
  (b) IRS IDENT. NO.
  (c) S.E.C. FILE NO.
  WORK LOCATION
  WD-40 Company
  95-1797918
  000-06936
    United States
  1 (d) ADDRESS OF ISSUER
  STREET
  CITY
  STATE
  ZIP CODE
  (e) TELEPHONE NO.
  
  1061 Cudahy Place
  San Diego
  CA
  92110
  AREA CODE
  NUMBER
  
  619
  275-1400
  2 (a) NAME OF PERSON FOR WHOSE ACCOUNT THE SECURITIES ARE TO BE SOLD
  (b) IRS IDENT. NO.
  (c) RELATIONSHIP TO ISSUER
  (d) ADDRESS STREET
  CITY
  STATE
  ZIP CODE
  
  Garry O. Ridge
  ###-##-####
  Director, CEO
  1061 Cudahy Place
  San Diego
  CA
  92110
  
  INSTRUCTION:  The person filing this notice should contact the issuer
  to obtain the I.R.S. Identification Number and the S.E.C. File Number.
  3 (a)
  Title of the Class of Securities To Be Sold
  (b)
  Name and Address of Each Broker Through Whom the Securities are to be
  Offered or Each Market Maker who is Acquiring the Securities
  SEC USE ONLY
  (c)
  Number of Shares
  or Other Units
  To Be Sold
  (See instr. 3(c))
  (d)
  Aggregate
  Market
  Value
  (See instr. 3(d))
  (e)
  Number of Shares
  or Other Units
  Outstanding
  (See instr. 3(e))
  (f)
  Approximate Date of Sale
  (See instr. 3(f))
  (MO. DAY YR.)
  (g)
  Name of Each Securities Exchange
  (See instr. 3(g))
  
  Broker-Dealer
  File Number
  
  Common Stock
  Computershare Securities Corp.
  2 North LaSalle Street
  Chicago, IL  60602
  
  Broadcort Correspondent Clearing Division
  Merrill, Lynch, Pierce, Fenner & Smith Incorporated
  101 Hudson Street, 7th Floor
  Jersey City, New Jersey 07302
  
  20,000
  $628,600 (1)
  16,796,332
  (2)
  NASDAQ
  INSTRUCTIONS:
  1.
  (a)
  Name of issuer
  3.
  (a)
  Title of the class of securities to be sold
  
  (b)
  Issuer's I.R.S. Identification Number
  
  (b)
  Name and address of each broker through whom the securities
  are intended to be sold
  
  (c)
  Issuer's S.E.C. file number, if any
  
  (c)
  Number of shares or other units to be sold (if debt securities, give the
  aggregate face amount)
  
  (d)
  Issuer's address, including zip code
  
  (d)
  Aggregate market value of the securities to be sold as of a specified
  date within 10 days prior to the filing of this notice
  
  (e)
  Issuer's telephone number, including area code
  
  (e)
  Number of shares or other units of the class outstanding, or if debt
  securities the face amount thereof outstanding, as shown by the most recent
   report or statement published by the issuer
  
  (f)
  Approximate date on which the securities are to be sold
  2.
  (a)
  Name of person for whose account the securities are to be sold
  
  (g)
  Name of each securities exchange, if any, on which the securities
  are intended to be sold
  
  (b)
  Such person's I.R.S. identification number, if such person is an entity
  
  (c)
  Such person's relationship to the issuer (e.g., officer, director, 10%
  stockholder, or member of immediate family of any of the foregoing)
  
  (d)
  Such person's address, including zip code
  
  Potential persons who are to respond to the collection of information
  contained in this form are not required to respond unless the form displays
  a currently valid OMB control number.
  SEC 1147 (01-04)
  
  TABLE I -- SECURITIES TO BE SOLD
  Furnish the following information with respect to the acquisition of the
  securities to be sold and with respect to the payment of all or any part of
  the purchase price or other consideration therefor:
  
  Title of the Class
  Date you Acquired
  Nature of Acquisition Transaction
  Name of Person from Whom Acquired
  (If gift, also give date donor acquired)
  Amount of Securities Acquired
  Date of Payment
  Nature of Payment
  Common Stock
  (2)
  Exercise of non-qualified stock option
  WD-40 Company
  20,000
  (2)
  Sale Proceeds (2)INSTRUCTIONS:
  If the securities were purchased and full payment therefor was not made
  in cash at the time of purchase, explain in the table or in a note thereto
  the nature of the consideration given. If the consideration consisted of any
  note or other obligation, or if payment was made in installments describe the
   arrangement and state when the note or other obligation was discharged in
   full or the last installment paid.
   TABLE II -- SECURITIES SOLD DURING THE PAST 3 MONTHS
  Furnish the following information as to all securities of the
  issuer sold during the past 3 months by the person for whose account
  the securities are to be sold.
  
  Name and Address of Seller
  Title of Securities Sold
  Date of Sale
  Amount of Securities Sold
  Gross Proceeds
  Garry O. Ridge
  Common Stock
  4/18/06
  20,000
  $654,000
  REMARKS:
  (1)  Estimated based on the fair market value at market close
  on 4/28/06 of $31.43/share.
  (2)  These control securities, registered on Form S-8, will be
  acquired upon the proposed exercise of a non-qualified stock option and
  sold on the same day pursuant to a cashless stock option exercise transaction
  processed by the Issuer's stock option plan administrator.  The proposed
  transaction will be completed pursuant to a Rule 10b5-1 trading plan
  adopted by the reporting person on 4/17/06.  The representations of the
  reporting person regarding knowledge of material adverse information
  in regard to the current and prospective operations of the Issuer were
  made and they were true and correct as of the date of adoption of the
  Rule 10b5-1 trading plan.
  
  INSTRUCTIONS:
  
  ATTENTION:
  See the definition of "person" in paragraph (a) of Rule 144.
  Information is to be given not only as to the person for whose account
  the securities are to be sold but also as to all other persons included
  in that definition. In addition, information shall be given as to sales by
  all persons whose sales are required by paragraph (e) of Rule 144 to be
  aggregated with sales for the account of the person filing this notice.
  
  The person for whose account the securities to which this notice relates are
  to be sold hereby represents by signing this notice that he does not know
  any material adverse information in regard to the current and prospective
  operations of the Issuer of the securities to be sold which has not been
  publicly disclosed.
  
  4/28/06
  
  /s/ Maria M. Mitchell as Attorney in Fact for Garry O. Ridge
  DATE OF NOTICE
  
  (SIGNATURE)
  The notice shall be signed by the person for whose account the securities are
  to be sold. At least one copy of the notice shall be manually signed.
  Any copies not manually signed shall bear typed or printed signatures.
  ATTENTION: Intentional misstatements or omission of facts constitute
  Federal Criminal Violations (See 18 U.S.C. 1001)
  SEC 1147 (01-04)