MARSHALL & ILSLEY CORPORATION





UNITED STATES

SECURITIES AND EXCHANGE COMMISSION


Washington, D.C. 20549


FORM 8-K


CURRENT REPORT



Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


Date of Report (Date of earliest event reported):  April 12, 2005



MARSHALL & ILSLEY CORPORATION

(Exact name of registrant as specified in its charter)



           Wisconsin              

    1-15403    

      39-0968604      

(State or other jurisdiction
of incorporation)

(Commission
File Number)

(IRS Employer
Identification No.)


770 North Water Street
            Milwaukee, Wisconsin             

 


   53202   

(Address of principal executive offices)

 

(Zip Code)

   


Registrant’s telephone number, including area code:  (414) 765-7801


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


¨

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


¨

Soliciting material pursuant to Rule 14a-12 under the Securities Act (17 CFR 240.14a-12)


¨

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


¨

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))



Item 2.02.  Results of Operations and Financial Condition.

On April 12, 2005, Marshall & Ilsley Corporation issued a press release announcing its results of operations for the quarter ended March 31, 2005.  A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01.  Financial Statements and Exhibits.

Exhibit No.

Description

  

99.1

Press Release dated April 12, 2005



SIGNATURES



Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated:  April 12, 2005

MARSHALL & ILSLEY CORPORATION

  
  
 

By: /s/ Randall J. Erickson                                     

  

Randall J. Erickson

Senior Vice President, General Counsel and

Secretary




EXHIBIT INDEX



Exhibit No.

Description

  

99.1

Press Release dated April 12, 2005