Marshall & Ilsley Corporation Files Acquisition Shelf Registration Statement

Marshall & Ilsley Corporation Files Acquisition Shelf
Registration Statement 


MILWAUKEE, Nov. 17  /PRNewswire-FirstCall/ -- Marshall & Ilsley Corporation
(M&I) (NYSE:MI) today announced that it has filed an acquisition shelf
registration statement with the Securities and Exchange Commission covering up
to 6,000,000 shares of M&I common stock.  These shares may be used from time to
time by M&I and its subsidiaries for business acquisitions.  The issuance of
M&I common stock for all or part of certain acquisitions will assist M&I in
keeping its capital at desired levels.

A registration statement relating to these securities has been filed with the
Securities and Exchange Commission but has not yet become effective. These
securities may not be sold nor may offers to buy be accepted prior to the time
the registration statement becomes effective.  This press release shall not
constitute an offer to sell or the solicitation of an offer to buy nor shall
there be any sale of these securities in any state in which such offer,
solicitation or sale would be unlawful prior to registration or qualification
under the securities laws of any such state.  A written prospectus (when
available) may be obtained from: Corporate Secretary, Marshall & Ilsley
Corporation, 770 North Water Street, Milwaukee, Wisconsin 53202.

Marshall & Ilsley Corporation (NYSE:MI) is a diversified financial services
corporation headquartered in Milwaukee, Wis., with $39 billion in assets. 
Founded in 1847, M&I Marshall & Ilsley Bank has the largest banking presence in
Wisconsin with 196 offices throughout the state.  In addition, M&I has 33
locations throughout Arizona; 11 offices in metropolitan Minneapolis/St. Paul,
Minn.; and, locations in Duluth, Minn.; Las Vegas, Nev.; and, Naples and Bonita
Springs, Fla. M&I's Southwest Bank affiliate has six offices in the St. Louis
area and one office in Belleville, Ill.  Metavante Corporation, Marshall &
Ilsley Corporation's wholly owned technology subsidiary, provides virtually all
of the technology an organization needs to offer financial services.  M&I also
provides trust and investment management, equipment leasing, mortgage banking,
asset-based lending, financial planning, investments, and insurance services
from offices throughout the country and on the Internet (
http://www.mibank.com/ or http://www.micorp.com/ ).  M&I's customer-based
approach, internal growth, and strategic acquisitions have made M&I a
nationally recognized leader in the financial services industry.

The press release contains forward-looking statements concerning M&I's future
operations.  Such statements are subject to important factors that could cause
M&I's actual results to differ materially from those anticipated by the
forward-looking statements.  These factors include (i) the factors identified
in M&I's Annual Report on Form 10-K for the year ended December 31, 2003 under
the heading "Forward-Looking Statements" which factors are incorporated herein
by reference, (ii) such other factors as may be described from time to time in
M&I's SEC filings, and (iii) those factors associated with capital markets
generally, the market price for M&I's common stock, price volatility of M&I's
common stock and the ability of M&I to complete its securities transactions. 
Additional risks and uncertainties include the risks that the Securities and
Exchange Commission may not allow M&I's registration statement to become
effective; that M&I may not issue the securities covered under the registration
statement; that M&I may not obtain future opportunities for acquisitions or
other corporate transactions; and that M&I may not use the shares covered under
the registration statement for such transactions. 

DATASOURCE: Marshall & Ilsley Corporation



CONTACT:  John Presley, senior vice president and chief financial

officer, [phone], or Don Wilson, senior vice president, corporate

treasurer, [phone], both of Marshall & Ilsley Corporation



Web site:  http://www.micorp.com/

http://www.mibank.com/ 

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