- Current report filing (8-K)

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 20, 2010

MARSHALL & ILSLEY CORPORATION

(Exact name of registrant as specified in its charter)

Wisconsin	1-33488	20-8995389
(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:  [phone]

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 Exchange 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 20, 2010, Marshall & Ilsley Corporation issued a press release announcing its results of operations for the first quarter ended March 31, 2010.  A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

In addition, a copy of the supplemental financial data referenced in the earnings release is attached hereto as Exhibit 99.2.

Item 9.01.

Financial Statements and Exhibits .

	Exhibit No.	Description
	99.1	Press Release dated April 20, 2010
	99.2	Supplemental Financial Data

2

---

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 20, 2010	MARSHALL & ILSLEY CORPORATION
	By:   /s/ Randall J. Erickson
	Randall J. Erickson Senior Vice President, Chief Administrative Officer and General Counsel

3

---

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release dated April 20, 2010
99.2	Supplemental Financial Data

4