Document:

Fourth Supplemental Indenture, dated as of November 1, 2007

 Exhibit 4.1 
 Execution Copy 
 FOURTH SUPPLEMENTAL INDENTURE 
 THIS FOURTH SUPPLEMENTAL INDENTURE (“Supplemental Indenture”), dated as of November 1, 2007, is among M&I LLC, a Wisconsin limited
liability company formerly known as Marshall & Ilsley Corporation, a Wisconsin corporation (the “Company”), having its principal executive office at 770 North Water Street, Milwaukee, Wisconsin 53202, MARSHALL & ILSLEY
CORPORATION, a Wisconsin corporation formerly known as New M&I Corporation (the “Guarantor”), having its principal executive office at 770 North Water Street, Milwaukee, Wisconsin 53202, and THE BANK OF NEW YORK (successor to JPMORGAN
CHASE BANK, N.A. and MANUFACTURERS HANOVER TRUST COMPANY), as Trustee, having its corporate trust office at 101 Barclay Street, 8W, New York, New York 10286 (the “Trustee”). 
 RECITALS OF THE COMPANY 
 WHEREAS, the Company and the Trustee are parties to an
Indenture, dated as of November 15, 1985, as amended by a First Supplemental Indenture, dated as of May 31, 1990, a Second Supplemental Indenture, dated as of July 15, 1993, and a Third Supplemental Indenture, dated as of
March 22, 2006 (collectively, the “Indenture”), relating to the issuance from time to time by the Company of its Securities to be issued in one or more series on terms to be specified at the time of issuance; 
 WHEREAS, the Company has entered into an Investment Agreement, dated as of April 3, 2007 (the “Investment Agreement”), among the Company,
Metavante Corporation (“MVT Corp.”), Metavante Holding Company (“MVT Holding”), Montana Merger Sub Inc. (“Merger Sub”) and WPM, L.P. and a Separation Agreement, dated as of April 3, 2007 (the “Separation
Agreement”), among MVT Holding, MVT Corp., the Company and the Guarantor; 
 WHEREAS, prior to the consummation of the transactions
contemplated by the Investment Agreement and the Separation Agreement, the Company existed in the form of a Wisconsin corporation, the Guarantor and MVT Holding were wholly-owned subsidiaries of the Company and Merger Sub was a wholly-owned
subsidiary of MVT Holding; 
 WHEREAS, pursuant to the terms of the Investment Agreement (A) Merger Sub was merged with and into the
Company, with the Company continuing as the surviving corporation and as a direct, wholly-owned subsidiary of MVT Holding (the “Holding Company Merger”), (B) immediately following the Holding Company Merger, the Company was converted
into a limited liability company (the “Company Conversion”) pursuant to Section 180.1161 of the Wisconsin Business Corporation Law and continues in existence after such conversion, (C) the Company distributed the outstanding
shares of MVT Corp. to MVT Holding (the “Metavante Distribution”) and (D) MVT Holding contributed all of the outstanding membership interests of the Company to the Guarantor (the “M&I Contribution” and together with the
Holding Company Merger, the Company Conversion and the Metavante Distribution, the “Transactions”); 
 WHEREAS, Section 901 of
the Indenture provides that a supplemental indenture may be entered into by the Company and the Trustee without the consent of any Holders of the Securities to, among other things, cure any ambiguity, correct or supplement any provision in the
Indenture which may be defective or inconsistent with any other provision in the Indenture, or make any other provisions with respect to matters arising under the Indenture, provided, that such action does not adversely affect the interests of the
Holders of the Securities of any series in any material respect; 
 WHEREAS, the Company requests the Trustee to join with it in the
execution and delivery of 

 
this Supplemental Indenture in order to amend the Indenture, pursuant to Section 901 thereof, to provide for the full and unconditional guarantee by the
Guarantor of (i) the full payment of principal of (and premium, if any) and interest on the Guaranteed Securities (as defined below) when due, whether at maturity, by acceleration or otherwise, (ii) the full and punctual payment of all
other monetary obligations of the Company under the Indenture and (iii) the full and punctual performance within any applicable grace period of all other obligations of the Company under the Indenture with respect to the Trustee or the
Guaranteed Securities; 
 WHEREAS, the amendments to the Indenture provided in this Supplemental Indenture do not adversely affect the
interests of the Holders of Securities of any series in any material respect; 
 WHEREAS, the Company has furnished the Trustee with such
documents as may have been required by Sections 102 and 903 of the Indenture; and 
 WHEREAS, all things necessary to make this Supplemental
Indenture a valid agreement of the Company, the Guarantor and the Trustee and a valid amendment of and supplement to the Indenture have been done. 
 NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH: 
 For and in consideration of the premises, it is mutually covenanted and
agreed for the equal and proportionate benefit of all Holders of the Guaranteed Securities, as follows: 
 ARTICLE I 
 DEFINITIONS 
 Section 1.1.
Definition of Terms. 
 Unless the context otherwise requires, capitalized terms used herein but not defined herein shall have the
specified meanings therefor set forth in the Indenture. 
 ARTICLE II 
 GUARANTEE 
 Section 2.1. Guarantee. 
 Subject to the provisions of the Indenture and any supplemental indenture thereto, the Guarantor hereby irrevocably and unconditionally guarantees to each
Holder of (i) a Security outstanding on the date hereof and (ii) any Security of any series authorized and issued by the Company after the date hereof, but only if and to the extent that the terms of such Security specifically make the
Securities Guarantee (as defined below) applicable thereto and the Guarantor consents to such application (any and all such Securities described in clause (i) and (ii) being referred to herein as “Guaranteed Securities”), and to
the Trustee and its successors and assigns: (a) the full payment of principal of (and premium, if any) and interest on the Guaranteed Securities when due, whether at maturity, by acceleration or otherwise, (b) in case of any extension of
time in payment or renewal of any Guaranteed Securities or pursuant to any cure period provisions of the Guaranteed Securities or the Indenture, the full payment when due in accordance with the terms of the extension or renewal or cure period,
(c) the full and punctual payment of all other monetary obligations of the Company under the Indenture and (d) the full and punctual performance within any applicable grace period of all other obligations of the Company under the Indenture
with respect to the Trustee or the Guaranteed Securities (the “Securities Guarantee”). The Guarantor agrees that this is a guarantee of payment and not a guarantee of collection. 
  

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 The Guarantor hereby agrees that its obligations with regard to the Securities Guarantee shall be
unconditional, irrespective of any circumstances which might otherwise constitute a legal or equitable defense of a guarantor. In the event of a default in the payment of principal (and premium, if any) and/or interest, the Trustee or any Holder of
a Guaranteed Security may seek to enforce the Securities Guarantee against the Guarantor without first proceeding against the Company. The Guarantor further, to the extent permitted by law, hereby waives (a) any defense that may arise by reason
of the incapacity, lack of authority, death or disability of any other Person or the failure of the Trustee, the Holders of Guaranteed Securities or the Company (each a “Benefited Party”) to file or enforce a claim against the estate (in
administration, bankruptcy or any other proceeding) of any other Person, (b) notice of the existence, creation or incurrence of any new or additional indebtedness or obligation, (c) any defense based upon an election of remedies by a
Benefited Party, including, but not limited to, an election law which provides that the obligation of a surety must be neither larger in amount nor in other respects more burdensome than that of the principal, (d) any defense arising because of
a Benefited Party’s election, in any proceeding instituted under Federal bankruptcy law, of the application of 11 U.S.C. Section 1111(b)(2) or (e) any defense based on any borrowing or grant of a security interest under 11 U.S.C.
Section 364. The Guarantor hereby covenants that the Securities Guarantee shall not be discharged except by complete payment of principal (and premium, if any) and interest on the Guaranteed Securities and all other obligations of the Company
and the Guarantor under the Indenture, or other discharge of the obligations of the Company and the Guarantor thereunder in accordance with the provisions contained in the Guaranteed Securities, the Securities Guarantee, the Indenture and any
supplemental indenture thereto. 
 If any Holder of Guaranteed Securities or the Trustee is required by any court or otherwise to return to
either the Company or the Guarantor, or any custodian acting in relation to either the Company or the Guarantor, any amount paid by the Company or the Guarantor to the Trustee or such Holder, the Guaranteed Securities, to the extent theretofore
discharged, shall be reinstated in full force and effect. The Guarantor agrees that it shall not be entitled to any right of subrogation in relation to the Holders of Guaranteed Securities or the Trustee in respect of any obligations guaranteed
hereby until payment in full of all obligations guaranteed hereby. 
 The Securities Guarantee is a continuing guarantee and shall remain in
full force and effect and shall be binding upon the Guarantor and its successors and assigns until full and final payment of all of principal of (and premium, if any) and interest on the Guaranteed Securities and all other obligations of the Company
and the Guarantor under the Indenture, or release of the Securities Guarantee pursuant to the terms hereof and shall inure to the benefit of the successors and assigns of the Trustee and the Holders of Guaranteed Securities and, in the event of any
transfer or assignment of rights by any such Holder or the Trustee, the rights and privileges herein conferred upon that party shall automatically extend to and be vested in such transferee or assignee, all subject to the terms and conditions
hereof. 
 The Guarantor acknowledges that it will receive direct and indirect benefits from the arrangements contemplated by this
Supplemental Indenture. 
 Section 2.2. Releases. 
 In the event that (i) the indebtedness on any series of outstanding Guaranteed Securities shall have been deemed satisfied pursuant to the Indenture (including Section 401 thereof and including all
obligations of the Company and the Guarantor under the Indenture with respect to such series), or (ii) the Holders of a majority in aggregate principal amount of the outstanding Guaranteed Securities of any series shall consent to the release
of the Guarantor of its Securities Guarantee with respect to such series, the Guarantor shall thereby become released from and relieved of its Securities Guarantee and all its other 

  

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obligations hereunder with respect to such series, the Securities Guarantee and such other obligations shall be of no further force or effect with respect to
such series, and upon request of the Guarantor, accompanied by an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the release of the Securities Guarantee have been
complied with, and evidence of the consent of the Holders of Guaranteed Securities, if applicable, the Trustee shall execute and deliver to the Guarantor a satisfaction and discharge with respect to the Securities Guarantee and such other
obligations with respect to such series and the Trustee shall execute any other documents reasonably required to evidence the release of the Guarantor from the Securities Guarantee and such other obligations with respect to such series. 

In the event that (i) there is effected, in accordance with the applicable terms of the Indenture, a sale or other disposition of all or
substantially all the assets of the Company (as a result of a sale or other disposition of assets or securities, a merger or consolidation or otherwise) to any Person that is not immediately after giving effect to such transaction an Affiliate of
the Guarantor or (ii) at any time the Guarantor ceases to Beneficially Own Voting Stock carrying at least a majority of the Voting Power of all then outstanding Voting Stock of the Company (as a result of a sale or other disposition of
membership interests, a merger or consolidation or otherwise), then the Guarantor shall thereupon become released and relieved of its Securities Guarantee and all its other obligations hereunder with respect to all the Guaranteed Securities, and all
provisions referencing or relating to the Guarantor, the Securities Guarantee or such other obligations shall be of no further force or effect, and upon the request of the Guarantor, accompanied by an Officers’ Certificate and an Opinion of
Counsel, each stating that all conditions precedent herein provided for relating to the release of the Securities Guarantee have been complied with, the Trustee shall execute and deliver to the Guarantor a satisfaction and discharge with respect to
the Securities Guarantee and such other obligations and the Trustee shall execute any other documents reasonably required to evidence the release of the Guarantor from the Securities Guarantee and such other obligations with respect to all the
Guaranteed Securities. For purposes of this Section only, (i) “Beneficially Own” shall have the meaning specified in Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”),
(ii) “Voting Stock” shall mean, as to any Person, membership interests or other equity interests of any class or kind ordinarily having the power to vote for the election of directors, managers or other voting members of the governing
body of such Person, (iii) “Voting Power” shall mean, as to any Voting Stock of a Person at any time, the number of votes the holder of such Voting Stock is entitled to cast for directors, managers or other voting members of the
governing body of such Person at any meeting of the holders of Voting Stock held at such time for such purpose, and (iv) “Affiliate” shall have the meaning specified in Rule 12b-2 under the Exchange Act. 
 For the avoidance of doubt, the Securities Guarantee shall terminate upon (i) the merger or consolidation of the Company with and into the Guarantor
in accordance with the applicable terms of the Indenture or (ii) the sale or other disposition of all or substantially all the assets of the Company by the Company to the Guarantor in accordance with the applicable terms of the Indenture, and
the Guarantor shall thereupon become released from and relieved of all its other obligations hereunder with respect to all the Guaranteed Securities, the Securities Guarantee and such other obligations shall be of no further force or effect, and
upon request of the Guarantor, accompanied by an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the release of the Securities Guarantee have been complied with, the
Trustee shall execute and deliver to the Guarantor a satisfaction and discharge with respect to the Securities Guarantee and such other obligations and the Trustee shall execute any other documents reasonably required to evidence the release of the
Guarantor from the Securities Guarantee and such other obligations with respect to the Guaranteed Securities. 
  

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 Section 2.3 Successors and Assigns. 
 Except as provided in Section 2.2, this Article II shall be binding upon the Guarantor and its successors and assigns and shall inure to the benefit
of the successors and assigns of the Trustee and the Holders of Guaranteed Securities and, in the event of any transfer or assignment of rights by any such Holder or the Trustee, the rights and privileges conferred upon that party in this
Supplemental Indenture and in the Guaranteed Securities shall automatically extend to and be vested in such transferee or assignee, all subject to the terms and conditions of this Supplemental Indenture. 
 Section 2.4 No Waiver, etc. 
 Neither a failure nor a delay on the part of either the Trustee or the Holders of Guaranteed Securities in exercising any right, power or privilege under this Article II shall operate as a waiver thereof, nor shall a single or partial
exercise thereof preclude any other or further exercise of any right, power or privilege. The rights, remedies and benefits of the Trustee and the Holders of Guaranteed Securities herein expressly specified are cumulative and not exclusive of any
other rights, remedies or benefits which either may have under this Article II at law, in equity, by statute or otherwise. 
 ARTICLE III

 MISCELLANEOUS 
 Section 3.1 Effectiveness. 
 This Supplemental Indenture shall become operative immediately following the consummation
of the Share Distribution (as defined in the Investment Agreement) on the closing date of the Transactions (the “Operative Time”), following which the Company will promptly notify the Trustee in writing that such Operative Time has
occurred and that this Supplemental Indenture has become effective. In the event the Operative Time shall not have occurred within 30 days of the execution hereof, this Supplemental Indenture shall become null and void and of no force or effect
without any action from any party hereto. 
 Section 3.2 Ratification of Indenture. 
 The Indenture, as supplemented by this Supplemental Indenture, is in all respects ratified and confirmed, and this Supplemental Indenture shall be deemed
part of the Indenture in the manner and to the extent herein and therein provided. For the avoidance of doubt, the provisions of this Supplemental Indenture shall supplement but not modify the existing provisions of the Indenture. 
 Section 3.3 Further Assurances. 
 The Company will, at its own cost and expense, execute and deliver any documents or agreements, and take any other actions, which the Trustee or its counsel may from time to time request in order to assure the Trustee of the benefits of the
rights granted to the Trustee under the Indenture, as supplemented and amended by this Supplemental Indenture. 
 Section 3.4 Effect
of Recitals. 
 The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this
Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Company and the Guarantor. 
  

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 Section 3.5 Governing Law. 
 THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 
 Section 3.6 Counterparts. 
 This
instrument may be executed in any number of separate counterparts, each of which so executed shall be deemed to be an original, but all such separate counterparts shall together constitute but one and the same instrument. 
 [Signatures on following page] 
  

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 IN WITNESS WHEREOF, each of M&I LLC and MARSHALL & ILSLEY CORPORATION has caused this Fourth
Supplemental Indenture to be signed in its name by its Chairman of the Board, its President or a Vice President, and its corporate seal to be affixed hereunto, and the same to be attested by the signature of its Secretary or an Assistant Secretary;
and THE BANK OF NEW YORK (successor to JPMORGAN CHASE BANK, N.A. and MANUFACTURES HANOVER TRUST COMPANY) has caused this Fourth Supplemental Indenture to be signed in its corporate name by one of its Vice Presidents, as of the day and year first
above written. 
  

			
	M&I LLC
		
	By:	 	 /s/ Gregory A. Smith

	Name:	 	Gregory A. Smith
	Title:	 	President

  

			
	Attest:
		
		 	 /s/ Randall J. Erickson

	Name:	 	Randall J. Erickson
	Title:	 	Vice President and Secretary

  

			
	MARSHALL & ILSLEY CORPORATION, as Guarantor
		
	By:	 	 /s/ Randall J. Erickson

	Name:	 	Randall J. Erickson
	Title:	 	 Senior Vice President, Chief
 Administrative Officer
and General Counsel

  

			
	Attest:
		
		 	 /s/ Gina M. McBride

	Name:	 	Gina M. McBride
	Title:	 	Vice President and Corporate Secretary

  

			
	THE BANK OF NEW YORK, as Trustee
		
	By:	 	 /s/ Larry O’Brien

	Name:	 	Larry O’Brien
	Title:	 	Vice President

  

 7Second Supplemental Indenture, dated as of November 1, 2007

 Exhibit 4.2 
 Execution Copy 
 SECOND SUPPLEMENTAL INDENTURE 
 THIS SECOND SUPPLEMENTAL INDENTURE, dated as of November 1, 2007 (this “Supplemental Indenture”), to an Indenture, dated as June 1,
2004, as amended by a First Supplemental Indenture, dated as of July 29, 2004 (collectively, the “Indenture”), by and among M&I LLC, a Wisconsin limited liability company formerly named Marshall & Ilsley Corporation, a
Wisconsin corporation (the “Company”), MARSHALL & ILSLEY CORPORATION, a Wisconsin corporation formerly named New M&I Corporation (the “Guarantor”), and BNY MIDWEST TRUST COMPANY, not in its individual capacity but
solely as trustee under the Indenture referred to above, an Illinois Trust company (the “Trustee”). 
 WHEREAS, the Company and the
Trustee entered into the Indenture, relating to the issuance from time to time by the Company of its Debt Securities; 
 WHEREAS, the Company
has entered into an Investment Agreement, dated as of April 3, 2007, among the Company, Metavante Corporation (“MVT Corp.”), Metavante Holding Company (“MVT Holding”), Montana Merger Sub Inc. and WPM, L.P. (the
“Investment Agreement”), and a Separation Agreement, dated as of April 3, 2007, among MVT Holding, MVT Corp., the Company and the Guarantor (the “Separation Agreement”); 
 WHEREAS, pursuant to the terms of the Investment Agreement and the Separation Agreement, the Company has been converted into a limited liability company
as of the closing date of the Transactions (as defined in the Investment Agreement) pursuant to Section 180.1161 of the Wisconsin Business Corporation Law and continues in existence after such conversion and the Guarantor has become the holder
of all issued and outstanding membership interests of the Company; 
 WHEREAS, Section 901 of the Indenture provides that a supplemental
indenture may be entered into by the Company and the Trustee without the consent of any Holder to, among other things, cure any ambiguity, correct or supplement any provision in the Indenture which may be defective or inconsistent with any other
provision in the Indenture, or make any other provisions with respect to matters or questions arising under the Indenture which are not inconsistent with any provision of the Indenture, provided that such other provisions do not adversely affect the
interests of the Holders of Debt Securities of any series or any related coupons in any material respect; 
 WHEREAS, the Company requests
that the Trustee join with it in the execution and delivery of this Supplemental Indenture in order to amend the Indenture, pursuant to Section 901 thereof, to provide for the full and unconditional guarantee by the Guarantor of (i) the
full payment of principal of (and premium, if any) and interest on the Guaranteed Securities (as defined below) when due, whether at maturity, by acceleration or otherwise, (ii) the full and punctual payment of all other monetary obligations of
the Company under the Indenture and (iii) the full and punctual performance within any applicable grace period of all other obligations of the Company under the Indenture with respect to the Trustee or the Guaranteed Securities; 
 WHEREAS, the amendments to the Indenture provided in this Supplemental Indenture do not adversely affect the interests of the Holders of Debt Securities
of any series in any material respect; 
 WHEREAS, the Company has delivered to the Trustee an Opinion of Counsel and an Officer’s
Certificate pursuant to Section 102 and Section 903 of the Indenture to the effect that all conditions precedent provided for in the Indenture to the Trustee’s execution and delivery of this Supplemental Indenture have been complied
with; and 

 WHEREAS, the Company has requested that the Trustee execute and deliver this Supplemental Indenture and
satisfy all requirements necessary to make this Supplemental Indenture a valid instrument in accordance with its terms and all acts and things necessary have been done and performed to make this Supplemental Indenture enforceable in accordance with
its terms, and execution and delivery of this Supplemental Indenture has been duly authorized in all respects. 
 NOW, THEREFORE, the
Company, the Guarantor and the Trustee agree as follows: 
 ARTICLE I 
 DEFINITIONS 
 Section 1.1. Definition of Terms. 
 Unless the context otherwise requires, capitalized terms used herein but not defined herein shall have the specified meanings therefor set forth in the
Indenture. 
 ARTICLE II 
 GUARANTEE 
 Section 2.1. Guarantee. 
 Subject to the provisions of the Indenture and any supplemental indenture thereto, the Guarantor hereby irrevocably and unconditionally guarantees to each
Holder of (i) a Debt Security outstanding on the date hereof and (ii) any Debt Security of any series authorized and issued by the Company after the date hereof, but only if and to the extent that the terms of such Debt Security
specifically make the Debt Securities Guarantee (as defined below) applicable thereto and the Guarantor consents to such application (any and all such Debt Securities described in clause (i) and (ii) being referred to herein as
“Guaranteed Securities”), and to the Trustee and its successors and assigns: (a) the full payment of principal of (and premium, if any) and interest on the Guaranteed Securities when due, whether at maturity, by acceleration or
otherwise, (b) in case of any extension of time in payment or renewal of any Guaranteed Securities or pursuant to any cure period provisions of the Guaranteed Securities or the Indenture, the full payment when due in accordance with the terms
of the extension or renewal or cure period, (c) the full and punctual payment of all other monetary obligations of the Company under the Indenture and (d) the full and punctual performance within any applicable grace period of all other
obligations of the Company under the Indenture with respect to the Trustee or the Guaranteed Securities (the “Debt Securities Guarantee”). The Guarantor agrees that this is a guarantee of payment and not a guarantee of collection.

 The Guarantor hereby agrees that its obligations with regard to the Debt Securities Guarantee shall be unconditional, irrespective of any
circumstances which might otherwise constitute a legal or equitable defense of a guarantor. In the event of a default in the payment of principal of (and premium, if any) and interest, the Trustee or any Holder of a Guaranteed Security may seek to
enforce the Debt Securities Guarantee against the Guarantor without first proceeding against the Company. The Guarantor further, to the extent permitted by law, hereby waives (a) any defense that may arise by reason of the incapacity, lack of
authority, death or disability of any other Person or the failure of the Trustee, the Holders or the Company (each a “Benefited Party”) to file or enforce a claim against the estate (in 

  

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administration, bankruptcy or any other proceeding) of any other Person, (b) notice of the existence, creation or incurrence of any new or additional
indebtedness or obligation, (c) any defense based upon an election of remedies by a Benefited Party, including, but not limited to, an election law which provides that the obligation of a surety must be neither larger in amount nor in other
respects more burdensome than that of the principal, (d) any defense arising because of a Benefited Party’s election, in any proceeding instituted under Federal bankruptcy law, of the application of 11 U.S.C. Section 1111(b)(2) or
(e) any defense based on any borrowing or grant of a security interest under 11 U.S.C. Section 364. The Guarantor hereby covenants that the Debt Securities Guarantee shall not be discharged except by complete payment of principal (and
premium, if any) and interest on the Guaranteed Securities and all other obligations of the Company and the Guarantor under the Indenture, or other discharge of the obligations of the Company and the Guarantor thereunder in accordance with the
provisions contained in the Guaranteed Securities, the Debt Securities Guarantee, the Indenture and any supplemental indenture thereto. 
 If
any Holder of Guaranteed Securities or the Trustee is required by any court or otherwise to return to either the Company or the Guarantor, or any custodian acting in relation to either the Company or the Guarantor, any amount paid by the Company or
the Guarantor to the Trustee or such Holder, the Guaranteed Securities, to the extent theretofore discharged, shall be reinstated in full force and effect. The Guarantor agrees that it shall not be entitled to any right of subrogation in relation to
the Holders or the Trustee in respect of any obligations guaranteed hereby until payment in full of all obligations guaranteed hereby. 
 The
Debt Securities Guarantee is a continuing guarantee and shall remain in full force and effect and shall be binding upon the Guarantor and its successors and assigns until full and final payment of all of principal of (and premium, if any) and
interest on the Guaranteed Securities and all other obligations of the Company and the Guarantor under the Indenture, or release of the Debt Securities Guarantee pursuant to the terms hereof and shall inure to the benefit of the successors and
assigns of the Trustee and the Holders of Guaranteed Securities and, in the event of any transfer or assignment of rights by any such Holder or the Trustee, the rights and privileges herein conferred upon that party shall automatically extend to and
be vested in such transferee or assignee, all subject to the terms and conditions hereof. 
 The Guarantor acknowledges that it will receive
direct and indirect benefits from the arrangements contemplated by this Supplemental Indenture. 
 Section 2.2. Releases.

 In the event that (i) the indebtedness on any series of outstanding Guaranteed Securities shall have been deemed satisfied pursuant to
the Indenture (including Article IV thereof), or (ii) the Holders of a majority in aggregate principal amount of the outstanding Guaranteed Securities of any series shall consent to the release of the Guarantor of its Debt Securities Guarantee
with respect to such series, the Guarantor shall thereby become released from and relieved of its Debt Securities Guarantee and all its other obligations hereunder with respect to such series, the Debt Securities Guarantee and such other obligations
shall be of no further force or effect with respect to such series, and upon request of the Guarantor, accompanied by an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to
the release of the Debt Securities Guarantee have been complied with, the Trustee shall execute and deliver to the Guarantor a satisfaction and discharge with respect to the Debt Securities Guarantee and such other obligations and the Trustee shall
execute any other documents reasonably required to evidence the release of the Guarantor from the Debt Securities Guarantee and such other obligations with respect to such series. 
  

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 In the event that (i) there is effected a sale or other disposition of all or substantially all the
assets of the Company (as a result of a sale or other disposition of assets or securities, a merger or consolidation or otherwise) to any Person that is not immediately after giving effect to such transaction an Affiliate of the Guarantor or
(ii) at any time the Guarantor ceases to Beneficially Own Voting Stock carrying at least a majority of the Voting Power of all then outstanding Voting Stock of the Company (as a result of a sale or other disposition of membership interests, a
merger or consolidation or otherwise), then the Guarantor shall thereupon become released and relieved of its Debt Securities Guarantee and all its other obligations hereunder with respect to all the Guaranteed Securities, and all provisions
referencing or relating to the Guarantor, the Debt Securities Guarantee or such other obligations shall be of no further force or effect, and upon the request of the Guarantor, accompanied by an Officers’ Certificate and an Opinion of Counsel,
each stating that all conditions precedent herein provided for relating to the release of the Debt Securities Guarantee have been complied with, the Trustee shall execute and deliver to the Guarantor a satisfaction and discharge with respect to the
Debt Securities Guarantee and such other obligations and the Trustee shall execute any other documents reasonably required to evidence the release of the Guarantor from the Debt Securities Guarantee and such other obligations with respect to all the
Guaranteed Securities. For purposes of this Section only, (i) “Beneficially Own” shall have the meaning specified in Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”),
(ii) “Voting Stock” shall mean, as to any Person, membership interests or other equity interests of any class or kind ordinarily having the power to vote for the election of directors, managers or other voting members of the governing
body of such Person, (iii) “Voting Power” shall mean, as to any Voting Stock of a Person at any time, the number of votes the holder of such Voting Stock is entitled to cast for directors, managers or other voting members of the
governing body of such Person at any meeting of the holders of Voting Stock held at such time for such purpose, and (iv) “Affiliate” shall have the meaning specified in Rule 12b-2 under the Exchange Act. 
 For the avoidance of doubt, the Debt Securities Guarantee shall terminate upon (i) the merger or consolidation of the Company with and into the
Guarantor or (ii) the sale or other disposition of all or substantially all the assets of the Company by the Company to the Guarantor, and the Guarantor shall thereupon become released from and relieved of all its other obligations hereunder
with respect to all the Guaranteed Securities, the Debt Securities Guarantee and such other obligations shall be of no further force or effect, and upon request of the Guarantor, accompanied by an Officers’ Certificate and an Opinion of
Counsel, each stating that all conditions precedent herein provided for relating to the release of the Debt Securities Guarantee have been complied with, the Trustee shall execute and deliver to the Guarantor a satisfaction and discharge with
respect to the Debt Securities Guarantee and such other obligations and the Trustee shall execute any other documents reasonably required to evidence the release of the Guarantor from the Debt Securities Guarantee and such other obligations with
respect to all the Guaranteed Securities. 
 Section 2.3 Successors and Assigns. 
 Except as provided in Section 2.2, this Article II shall be binding upon the Guarantor and its successors and assigns and shall inure to the benefit
of the successors and assigns of the Trustee and the Holders of Guaranteed Securities and, in the event of any transfer or assignment of rights by any Holder of Guaranteed Securities or the Trustee, the rights and privileges conferred upon that
party in this Supplemental Indenture and in the Guaranteed Securities shall automatically extend to and be vested in such transferee or assignee, all subject to the terms and conditions of this Supplemental Indenture. 
 Section 2.4 No Waiver, etc. 
 Neither a failure nor a delay on the part of either the Trustee or the Holders of Guaranteed Securities in exercising any right, power or privilege under this Article II shall operate as a waiver 

  

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thereof, nor shall a single or partial exercise thereof preclude any other or further exercise of any right, power or privilege. The rights, remedies and
benefits of the Trustee and the Holders of Guaranteed Securities herein expressly specified are cumulative and not exclusive of any other rights, remedies or benefits which either may have under this Article II at law, in equity, by statute or
otherwise. 
 ARTICLE III 
 MISCELLANEOUS 
 Section 3.1 Effectiveness. 
 This Supplemental Indenture shall become operative immediately following the consummation of the Share Distribution (as defined in the Investment
Agreement) on the closing date of the Transactions (the “Operative Time”), following which the Company will notify the Trustee that such Operative Time has occurred and that this Supplemental Indenture has become effective. In the event
the Operative Time shall not have occurred within 30 days of the execution hereof, this Supplemental Indenture shall become null and void and of no force or effect without any action from any party hereto. 
 Section 3.2 Ratification of Indenture. 
 The Indenture as supplemented by this Supplemental Indenture, is in all respects ratified and confirmed, and this Supplemental Indenture shall be deemed part of the Indenture in the manner and to the extent herein and therein provided.

 Section 3.3 Further Assurances. 
 The Company will, at its own cost and expense, execute and deliver any documents or agreements, and take any other actions, which the Trustee or its counsel may from time to time request in order to assure the Trustee
of the benefits of the rights granted to the Trustee under the Indenture, as supplemented and amended by this Supplemental Indenture. 
 Section 3.4 Effect of Recitals. 
 The Trustee shall not be responsible in any manner whatsoever for or in respect of the
validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Company and the Guarantor. 
 Section 3.5 Governing Law. 
 THIS
SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 
 Section 3.6
Counterparts. 
 This instrument may be executed in any number of separate counterparts, each of which so executed shall be deemed to
be an original, but all such separate counterparts shall together constitute but one and the same instrument. 
 [Signatures on following
page] 
  

 5 

 IN WITNESS WHEREOF, the parties hereto have caused this Second Supplemental Indenture to be duly executed
by their respective officers thereunto duly authorized, as of the day and year first above written. 
  

			
	M&I LLC
		
	By:	 	 /s/ Randall J. Erickson

	Name:	 	Randall J. Erickson
	Title:	 	Vice President and Secretary
	
	MARSHALL & ILSLEY CORPORATION, as
	Guarantor
		
	By:	 	 /s/ Randall J. Erickson

	Name:	 	Randall J. Erickson
	Title:	 	Senior Vice President, Chief Administrative Officer and General Counsel
	
	BNY MIDWEST TRUST COMPANY, as
	Trustee
		
	By:	 	 /s/ Roxane Ellwanger

	Name:	 	Roxane Ellwanger
	Title:	 	Assistant Vice President

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