UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
(X) Check this box if no longer subject to Section 16.
1. Name and Address of Reporting Person
Strelow, Gary D.
770 North Water Street
Milwaukee, WI 53202
USA
2. Issuer Name and Ticker or Trading Symbol
Marshall & Ilsley Corporation (MI)
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Year
4/2000
5. If Amendment, Date of Original (Month/Day/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
( ) Director ( ) 10% Owner
(X) Officer (give title below) ( ) Other (specify below)
Senior Vice President
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
<TABLE>
TABLE I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
<CAPTION>
+---------------------------------+----------+-------------+-----------------------------+----------------+-----------+------------+
|1. Title of Security |2. Trans- |3. Trans- |4. Securities Acquired (A) |5. Amount of |6. Owner- |7. Nature |
| | action | action | or Disposed of (D) | Securities | ship | of In- |
| | Date | Code | | Beneficially | Form: | direct |
| | | | | Owned at | Direct | Bene- |
| | (Month/ | | | End of | (D) or | ficial |
| | Day/ +-------+-----+-----------+------+----------+ Month | Indirect| Owner- |
| | Year) |Code |V |Amount |A/D |Price | | (I) | ship |
+---------------------------------+----------+-------+-----+-----------+------+----------+----------------+-----------+------------+
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
</TABLE>
<PAGE>
<TABLE>
TABLE II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
<CAPTION>
+-------------+--------+----------+---------+-----------+---------------------+----------------+----------+--------+-------+-------+
|1. |2. |3. |4. |5. |6. |7. |8. |9. |10. |11. |
| | | | | | | | |Number |Owner- | |
| | | | | | | | |of |ship | |
| | | | | | | | |Deriv- |Form of| |
| | | | | | |Title and Amount| |ative |Deriv- | |
| | | | | | |of Underlying | |Secur- |ative |Nature |
| |Conver- | | |Number of | |Securities | |ities |Secur- |of |
| |sion or | | |Derivative |Date Exercisable +-------+--------+ |Benefi- |ity: |In- |
| |Exercise| | |Securities |and Expiration Date | |Amount | |cially |Direct |direct |
| |Price of|Transac- |Transac- |Acquired(A)|(Month/Day/Year) | |or | |Owned |(D) or |Bene- |
|Title of |Deriv- |tion Date |tion Code|Disposed(D)+----------+----------+ |Number |Price of |at End |In- |ficial |
|Derivative |ative |(Month/ +------+--+-----+-----+Date Exer-|Expira- | |of |Derivative|of |direct |Owner- |
|Security |Security|Day/Year) |Code |V |(A) |(D) |cisable |tion Date |Title |Shares |Security |Month |(I) |ship |
+-------------+--------+----------+------+--+-----+-----+----------+----------+-------+--------+----------+--------+-------+-------+
<S> <C> <C> <C> <C><C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Stock Options $61.5 03/15/2000 G V 10000 12/16/1999 12/16/2009 Common 10000 $61.500000 0 D
(Right to buy) Stock
Stock Option $51.8125 03/15/2000 G V 4500 12/10/1998 12/10/2008 Common 4500 $51.812500 0 D
Stock
</TABLE>
Explanation of Responses:
SIGNATURE OF REPORTING PERSON
/s/ Gary D. Strelow
DATE
05/04/2000
