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

Michael J. Irwin

CFO
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

19,804
$682,248 (1)
17,242,436
(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 stock options
WD-40 Company
19,804
(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 Michael J. Irwin Common Stock
4/25/07 5,967
 $211,828.50
Michael J. Irwin Common Stock 7/9/07 11,013 $390,961.50


REMARKS:
(1)  Estimated based on the fair market value at market close on 7/18/2007 of
$34.45/share.
(2)  These control securities, registered on Form S-8, will be acquired upon
the proposed exercise of stock options for 19,804 shares 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 7/18/07.  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.

7/19/07

/s/ Michael J. Irwin
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)