Exhibit 4.1

AMCORE FINANCIAL, INC.

as Issuer

INDENTURE

Dated as of March 27, 2007

WILMINGTON TRUST COMPANY

as Trustee

FIXED/FLOATING RATE JUNIOR SUBORDINATED DEBT SECURITIES DUE 2037



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TABLE OF CONTENTS



|                                                                                                         |  |    |  | 
|-------------------------------------------------------------------------------------------------------- |  | -- |  | 
|ARTICLE I     DEFINITIONS                                                                                |  | 1 
|                                                                                                         | 
|Section 1.01.        Definitions                                                                         |  | 1 
|                                                                                                         | 
|ARTICLE II    DEBT SECURITIES                                                                            |  | 8 
|                                                                                                         | 
|Section 2.01.        Authentication and Dating                                                           |  | 8 
|                                                                                                         | 
|Section 2.02.        Form of Trustees Certificate of Authentication                                     |  | 8 
|                                                                                                         | 
|Section 2.03.        Form and Denomination of Debt Securities                                            |  | 9 
|                                                                                                         | 
|Section 2.04.        Execution of Debt Securities                                                        |  | 9 
|                                                                                                         | 
|Section 2.05.        Exchange and Registration of Transfer of Debt Securities                            |  | 9 
|                                                                                                         | 
|Section 2.06.        Mutilated, Destroyed, Lost or Stolen Debt Securities                                |  | 12
|                                                                                                         | 
|Section 2.07.        Temporary Debt Securities                                                           |  | 13
|                                                                                                         | 
|Section 2.08.        Payment of Interest                                                                 |  | 13
|                                                                                                         | 
|Section 2.09.        Cancellation of Debt Securities Paid, etc.                                          |  | 15
|                                                                                                         | 
|Section 2.10.        Computation of Interest                                                             |  | 15
|                                                                                                         | 
|Section 2.11.        Extension of Interest Payment Period                                                |  | 16
|                                                                                                         | 
|Section 2.12.        CUSIP Numbers                                                                       |  | 17
|                                                                                                         | 
|ARTICLE III    PARTICULAR COVENANTS OF THE COMPANY                                                       |  | 17
|                                                                                                         | 
|Section 3.01.        Payment of Principal, Premium and Interest; Agreed Treatment of the Debt
Securities |  | 17
|                                                                                                         | 
|Section 3.02.        Offices for Notices and Payments, etc.                                              |  | 18
|                                                                                                         | 
|Section 3.03.        Appointments to Fill Vacancies in Trustees Office                                  |  | 19
|                                                                                                         | 
|Section 3.04.        Provision as to Paying Agent                                                        |  | 19
|                                                                                                         | 
|Section 3.05.        Certificate to Trustee                                                              |  | 20
|                                                                                                         | 
|Section 3.06.        Additional Interest                                                                 |  | 20
|                                                                                                         | 
|Section 3.07.        Compliance with Consolidation Provisions                                            |  | 20
|                                                                                                         | 
|Section 3.08.        Limitation on Dividends                                                             |  | 20
|                                                                                                         | 
|Section 3.09.        Covenants as to the Trust                                                           |  | 21
|                                                                                                         | 
|ARTICLE IV    LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE                                           |  | 22
|                                                                                                         | 
|Section 4.01.        Securityholders Lists                                                              |  | 22
|                                                                                                         | 
|Section 4.02.        Preservation and Disclosure of Lists                                                |  | 22
|                                                                                                         | 
|Section 4.03.        Financial and Other Information                                                     |  | 23
|                                                                                                         | 
|ARTICLE V     REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS UPON AN EVENT OF DEFAULT                       |  | 24



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TABLE OF CONTENTS

(continued)



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|                                                                                                                        |  | Page
|Section 5.01.        Events of Default                                                                                  |  | 24  
|                                                                                                                        | 
|Section 5.02.        Payment of Debt Securities on Default; Suit Therefor                                               |  | 25  
|                                                                                                                        | 
|Section 5.03.        Application of Moneys Collected by Trustee                                                         |  | 27  
|                                                                                                                        | 
|Section 5.04.        Proceedings by Securityholders                                                                     |  | 27  
|                                                                                                                        | 
|Section 5.05.        Proceedings by Trustee                                                                             |  | 28  
|                                                                                                                        | 
|Section 5.06.        Remedies Cumulative and Continuing                                                                 |  | 28  
|                                                                                                                        | 
|Section 5.07.        Direction of Proceedings and Waiver of Defaults by Majority of Securityholders                     |  | 28  
|                                                                                                                        | 
|Section 5.08.        Notice of Defaults                                                                                 |  | 29  
|                                                                                                                        | 
|Section 5.09.        Undertaking to Pay Costs                                                                           |  | 29  
|                                                                                                                        | 
|ARTICLE VI    CONCERNING THE TRUSTEE                                                                                    |  | 30  
|                                                                                                                        | 
|Section 6.01.        Duties and Responsibilities of Trustee                                                             |  | 30  
|                                                                                                                        | 
|Section 6.02.        Reliance on Documents, Opinions, etc                                                               |  | 31  
|                                                                                                                        | 
|Section 6.03.        No Responsibility for Recitals, etc                                                                |  | 32  
|                                                                                                                        | 
|Section 6.04.        Trustee, Authenticating Agent, Paying Agents, Transfer Agents or Registrar May Own Debt
Securities |  | 32  
|                                                                                                                        | 
|Section 6.05.        Moneys to be Held in Trust                                                                         |  | 32  
|                                                                                                                        | 
|Section 6.06.        Compensation and Expenses of Trustee                                                               |  | 33  
|                                                                                                                        | 
|Section 6.07.        Officers Certificate as Evidence                                                                  |  | 33  
|                                                                                                                        | 
|Section 6.08.        Eligibility of Trustee                                                                             |  | 34  
|                                                                                                                        | 
|Section 6.09.        Resignation or Removal of Trustee                                                                  |  | 34  
|                                                                                                                        | 
|Section 6.10.        Acceptance by Successor Trustee                                                                    |  | 35  
|                                                                                                                        | 
|Section 6.11.        Succession by Merger, etc                                                                          |  | 36  
|                                                                                                                        | 
|Section 6.12.        Authenticating Agents                                                                              |  | 37  
|                                                                                                                        | 
|ARTICLE VII    CONCERNING THE SECURITYHOLDERS                                                                           |  | 38  
|                                                                                                                        | 
|Section 7.01.        Action by Securityholders                                                                          |  | 38  
|                                                                                                                        | 
|Section 7.02.        Proof of Execution by Securityholders                                                              |  | 39  
|                                                                                                                        | 
|Section 7.03.        Who Are Deemed Absolute Owners                                                                     |  | 39  
|                                                                                                                        | 
|Section 7.04.        Debt Securities Owned by Company Deemed Not Outstanding                                            |  | 39  
|                                                                                                                        | 
|Section 7.05.        Revocation of Consents; Future Holders Bound                                                       |  | 40  



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TABLE OF CONTENTS

(continued)



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|                                                                                                 |  | Page
|ARTICLE VIII    SECURITYHOLDERS MEETINGS                                                        |  | 40  
|                                                                                                 | 
|Section 8.01.        Purposes of Meetings                                                        |  | 40  
|                                                                                                 | 
|Section 8.02.        Call of Meetings by Trustee                                                 |  | 40  
|                                                                                                 | 
|Section 8.03.        Call of Meetings by Company or Securityholders                              |  | 41  
|                                                                                                 | 
|Section 8.04.        Qualifications for Voting                                                   |  | 41  
|                                                                                                 | 
|Section 8.05.        Regulations                                                                 |  | 41  
|                                                                                                 | 
|Section 8.06.        Voting                                                                      |  | 42  
|                                                                                                 | 
|Section 8.07.        Quorum; Actions                                                             |  | 42  
|                                                                                                 | 
|ARTICLE IX      SUPPLEMENTAL INDENTURES                                                          |  | 43  
|                                                                                                 | 
|Section 9.01.        Supplemental Indentures without Consent of Securityholders                  |  | 43  
|                                                                                                 | 
|Section 9.02.        Supplemental Indentures with Consent of Securityholders                     |  | 44  
|                                                                                                 | 
|Section 9.03.        Effect of Supplemental Indentures                                           |  | 45  
|                                                                                                 | 
|Section 9.04.        Notation on Debt Securities                                                 |  | 45  
|                                                                                                 | 
|Section 9.05.        Evidence of Compliance of Supplemental Indenture to be Furnished to Trustee |  | 46  
|                                                                                                 | 
|ARTICLE X        REDEMPTION OF SECURITIES                                                        |  | 46  
|                                                                                                 | 
|Section 10.01.        Optional Redemption                                                        |  | 46  
|                                                                                                 | 
|Section 10.02.        Special Event Redemption                                                   |  | 46  
|                                                                                                 | 
|Section 10.03.        Notice of Redemption; Selection of Debt Securities                         |  | 47  
|                                                                                                 | 
|Section 10.04.        Payment of Debt Securities Called for Redemption                           |  | 48  
|                                                                                                 | 
|ARTICLE XI      CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE                                |  | 48  
|                                                                                                 | 
|Section 11.01.        Company May Consolidate, etc., on Certain Terms                            |  | 48  
|                                                                                                 | 
|Section 11.02.        Successor Entity to be Substituted                                         |  | 49  
|                                                                                                 | 
|Section 11.03.        Opinion of Counsel to be Given to Trustee                                  |  | 49  
|                                                                                                 | 
|ARTICLE XII     SATISFACTION AND DISCHARGE OF INDENTURE                                          |  | 49  
|                                                                                                 | 
|Section 12.01.        Discharge of Indenture                                                     |  | 50  
|                                                                                                 | 
|Section 12.02.        Deposited Moneys to be Held in Trust by Trustee                            |  | 50  
|                                                                                                 | 
|Section 12.03.        Paying Agent to Repay Moneys Held                                          |  | 50  
|                                                                                                 | 
|Section 12.04.        Return of Unclaimed Moneys                                                 |  | 50  



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TABLE OF CONTENTS

(continued)



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|                                                                                           |  | Page
|ARTICLE XIII      IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS          |  | 50  
|                                                                                           | 
|Section 13.01.        Indenture and Debt Securities Solely Corporate Obligations           |  | 50  
|                                                                                           | 
|ARTICLE XIV      MISCELLANEOUS PROVISIONS                                                  |  | 51  
|                                                                                           | 
|Section 14.01.        Successors                                                           |  | 51  
|                                                                                           | 
|Section 14.02.        Official Acts by Successor Entity                                    |  | 51  
|                                                                                           | 
|Section 14.03.        Surrender of Company Powers                                          |  | 51  
|                                                                                           | 
|Section 14.04.        Addresses for Notices, etc                                           |  | 51  
|                                                                                           | 
|Section 14.05.        Governing Law                                                        |  | 51  
|                                                                                           | 
|Section 14.06.        Evidence of Compliance with Conditions Precedent                     |  | 52  
|                                                                                           | 
|Section 14.07.        Business Day Convention                                              |  | 52  
|                                                                                           | 
|Section 14.08.        Table of Contents, Headings, etc                                     |  | 52  
|                                                                                           | 
|Section 14.09.        Execution in Counterparts                                            |  | 52  
|                                                                                           | 
|Section 14.10.        Separability                                                         |  | 53  
|                                                                                           | 
|Section 14.11.        Assignment                                                           |  | 53  
|                                                                                           | 
|Section 14.12.        Acknowledgment of Rights                                             |  | 53  
|                                                                                           | 
|ARTICLE XV        SUBORDINATION OF DEBT SECURITIES                                         |  | 53  
|                                                                                           | 
|Section 15.01        Agreement to Subordinate                                              |  | 53  
|                                                                                           | 
|Section 15.02.        Default on Senior Indebtedness                                       |  | 54  
|                                                                                           | 
|Section 15.03.        Liquidation; Dissolution; Bankruptcy                                 |  | 54  
|                                                                                           | 
|Section 15.04.        Subrogation                                                          |  | 55  
|                                                                                           | 
|Section 15.05.        Trustee to Effectuate Subordination                                  |  | 56  
|                                                                                           | 
|Section 15.06.        Notice by the Company                                                |  | 56  
|                                                                                           | 
|Section 15.07.        Rights of the Trustee; Holders of Senior Indebtedness                |  | 57  
|                                                                                           | 
|Section 15.08.        Subordination May Not Be Impaired                                    |  | 58  
|                                                                                           | 
|EXHIBIT A           FORM OF FIXED/FLOATING RATE JUNIOR SUBORDINATED DEBT SECURITY DUE 2037 |  | A-1 
|                                                                                           | 
|EXHIBIT B           FORM OF CERTIFICATE OF OFFICER OF THE COMPANY                          |  | B-1 



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THIS INDENTURE, dated as of March 27, 2007, between AMCORE Financial, Inc., a bank holding company
incorporated in Nevada (hereinafter sometimes called the Company), and Wilmington Trust Company, a Delaware banking corporation, as trustee (hereinafter sometimes called the Trustee).

W I T N E S S E T H :

WHEREAS, for its
lawful corporate purposes, the Company has duly authorized the issuance of its Fixed/Floating Rate Junior Subordinated Debt Securities due 2037 (the Debt Securities) under this Indenture and to provide, among other things, for the
execution and authentication, delivery and administration thereof, the Company has duly authorized the execution of this Indenture.

NOW,
THEREFORE, in consideration of the premises, and the purchase of the Debt Securities by the holders thereof, the Company covenants and agrees with the Trustee for the equal and proportionate benefit of the respective holders from time to time of the
Debt Securities as follows:

ARTICLE I

DEFINITIONS

Section 1.01. Definitions.

The terms defined in this Section 1.01 (except as herein otherwise expressly provided or unless the context otherwise requires) for all purposes of this Indenture and of any indenture supplemental hereto shall
have the respective meanings specified in this Section 1.01. All accounting terms used herein and not expressly defined shall have the meanings assigned to such terms in accordance with generally accepted accounting principles and the term
generally accepted accounting principles means such accounting principles as are generally accepted in the United States at the time of any computation. The words herein, hereof and hereunder and other
words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision.

Additional Interest shall have the meaning set forth in Section 3.06.

Additional Provisions shall
have the meaning set forth in Section 15.01.

Authenticating Agent means any agent or agents of the Trustee which at the
time shall be appointed and acting pursuant to Section 6.12.

Bankruptcy Law means Title 11, U.S. Code, or any similar
federal or state law for the relief of debtors.

Board of Directors means the board of directors or the executive committee or
any other duly authorized designated officers of the Company.



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Board Resolution means a copy of a resolution certified by the Secretary or an Assistant
Secretary of the Company to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification and delivered to the Trustee.

Business Day means any day other than a Saturday, Sunday or any other day on which banking institutions in Wilmington, Delaware,
New York City or Rockford, Illinois are permitted or required by any applicable law or executive order to close.

Calculation Agent means the Person identified as Trustee in the first paragraph hereof with respect to the Debt Securities and the Institutional Trustee with respect to the Trust Securities.

Capital Securities means undivided beneficial interests in the assets of the Trust
which are designated as Capital Securities and rank pari passu with Common Securities issued by the Trust; provided, however, that if an Event of Default (as defined in the Declaration) has occurred and is
continuing, the rights of holders of such Common Securities to payment in respect of distributions and payments upon liquidation, redemption and otherwise are subordinated to the rights of holders of such Capital Securities.

Capital Securities Guarantee means the guarantee agreement that the Company will enter into with Wilmington Trust Company or other Persons
that operates directly or indirectly for the benefit of holders of Capital Securities of the Trust.

Capital Treatment Event
means the receipt by the Company and the Trust of an Opinion of Counsel experienced in such matters to the effect that, as a result of any amendment to, or change in, the laws, rules or regulations of the United States or any political subdivision
thereof or therein, or as the result of any official or administrative pronouncement or action or decision interpreting or applying such laws, rules or regulations, which amendment or change is effective or which pronouncement, action or decision is
announced on or after the date of original issuance of the Debt Securities, there is more than an insubstantial risk that the Company will not, within 90 days of the date of such opinion, be entitled to treat an amount equal to the aggregate
Liquidation Amount of the Capital Securities as Tier 1 Capital (or the then equivalent thereof) for purposes of the capital adequacy guidelines of the Federal Reserve (or any successor regulatory authority with jurisdiction over bank
holding companies), as then in effect and applicable to the Company, provided, however, that the distribution of the Debt Securities in connection with the liquidation of the Trust by the Company shall not in and of itself constitute a
Capital Treatment Event unless such liquidation shall have occurred in connection with a Tax Event or an Investment Company Event.

Certificate means a certificate signed by any one of the principal executive officer, the principal financial officer or the principal accounting officer of the Company.

Code means the Internal Revenue Code of 1986, as amended.

Common Securities means undivided beneficial interests in the assets of the Trust which are designated as Common Securities and rank pari passu with Capital Securities issued by the
Trust; provided, however, that if an Event of Default (as defined in the Declaration) has occurred and is continuing, the rights of holders of such Common Securities to payment in respect of distributions and payments upon liquidation,
redemption and otherwise are subordinated to the rights of holders of such Capital Securities.



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Company means AMCORE Financial, Inc., a bank holding company incorporated in Nevada, and,
subject to the provisions of Article XI, shall include its successors and assigns.

Debt Security or Debt
Securities has the meaning stated in the first recital of this Indenture.

Debt Security Register has the meaning
specified in Section 2.05.

Declaration means the Amended and Restated Declaration of Trust of the Trust dated as of
March 27, 2007, as amended or supplemented from time to time.

Default means any event, act or condition that with notice
or lapse of time, or both, would constitute an Event of Default.

Defaulted Interest has the meaning set forth in
Section 2.08.

Deferred Interest has the meaning set forth in Section 2.11.

Event of Default means any event specified in Section 5.01, which has continued for the period of time, if any, and after the giving of
the notice, if any, therein designated.

Exchange Act means the Securities Exchange Act of 1934, as amended.

Extension Period has the meaning set forth in Section 2.11.

Federal Reserve means the Board of Governors of the Federal Reserve System.

Fixed Period has the meaning set forth in Section 2.10.

Indenture means this instrument as originally executed or, if amended or supplemented as herein provided, as so amended or supplemented, or both.

Institutional Trustee has the meaning set forth in the Declaration.

Interest Payment Date means March 6, June 6, September 6 and December 6 of each year, commencing on June 6,
2007, during the term of this Indenture.

Interest Period has the meaning set forth in Section 2.08.

Interest Rate means a fixed per annum rate of interest equal to 6.45% through the end of the Interest Period with respect to the Interest
Payment Date occurring in June 2012, and a variable per annum rate of interest equal to LIBOR, as determined on the LIBOR Determination Date for such Interest Period, plus 1.53% for each Interest Period thereafter.



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Investment Company Event means the receipt by the Company and the Trust of an Opinion of
Counsel experienced in such matters to the effect that, as a result of a change in law or regulation or written change in interpretation or application of law or regulation by any legislative body, court, governmental agency or regulatory authority,
there is more than an insubstantial risk that the Trust is or, within 90 days of the date of such opinion will be, considered an investment company that is required to be registered under the Investment Company Act of 1940, as amended,
which change becomes effective on or after the date of the original issuance of the Debt Securities.

LIBOR means the London
Interbank Offered Rate for three-month U.S. Dollar deposits in Europe as determined by the Calculation Agent according to Section 2.10(b).

LIBOR Banking Day has the meaning set forth in Section 2.10(b)(1).

LIBOR Business
Day has the meaning set forth in Section 2.10(b)(1).

LIBOR Determination Date has the meaning set forth in
Section 2.10(b).

Liquidation Amount means the stated amount of $1,000 per Trust Security.

Maturity Date means June 6, 2037.

Officers Certificate means a certificate signed by any two of the Chairman of the Board, the Vice Chairman, the Chief Executive Officer, the President, the Chief Financial Officer, any Vice President, the Treasurer, the
Comptroller, the Secretary, an Assistant Secretary or an Authorized Officer of the Company, and delivered to the Trustee. Each such certificate shall include the statements provided for in Section 14.06 if and to the extent required by the
provisions of such Section.

Opinion of Counsel means an opinion in writing signed by legal counsel, who may be an employee of
or counsel to the Company, or may be other counsel reasonably satisfactory to the Trustee. Each such opinion shall include the statements provided for in Section 14.06 if and to the extent required by the provisions of such Section.

The term outstanding, when used with reference to Debt Securities, subject to the provisions of Section 7.04, means, as of any
particular time, all Debt Securities authenticated and delivered by the Trustee or the Authenticating Agent under this Indenture, except

(a) Debt Securities theretofore canceled by the Trustee or the Authenticating Agent or delivered to the Trustee for cancellation;

(b) Debt Securities, or portions thereof, for the payment or redemption of which moneys in the necessary amount shall have been deposited
in trust with the Trustee or with any Paying Agent (other than the Company) or shall have been set aside and segregated in trust by the Company (if the Company shall act as its own Paying Agent); provided, that, if such Debt Securities, or
portions thereof, are to be redeemed prior to maturity thereof, notice of such redemption shall have been given as provided in Articles X and XIV or provision satisfactory to the Trustee shall have been made for giving such notice; and



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(c) Debt Securities paid pursuant to Section 2.06 or in lieu of or in substitution
for which other Debt Securities shall have been authenticated and delivered pursuant to the terms of Section 2.06 unless proof satisfactory to the Company and the Trustee is presented that any such Debt Securities are held by bona fide holders
in due course.

Paying Agent means any paying agent for the Debt Securities appointed pursuant to
Section 3.04.

Person means any individual, corporation, limited liability company, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization or government or any agency or political subdivision thereof.

Predecessor Security of any particular Debt Security means every previous Debt Security evidencing all or a portion of the same debt as that evidenced by such particular Debt Security; and, for the purposes of this definition,
any Debt Security authenticated and delivered under Section 2.06 in lieu of a lost, destroyed or stolen Debt Security shall be deemed to evidence the same debt as the lost, destroyed or stolen Debt Security.

Principal Office of the Trustee means the office of the Trustee, at which at any particular time its corporate trust business shall be
principally administered, which at all times shall be located within the United States and at the time of the execution of this Indenture shall be Rodney Square North, 1100 North Market Street, Wilmington, Delaware 19890-0001.

Purchase Agreement means the Purchase Agreement dated March 27, 2007 among the Company, the Trust, Merrill Lynch International and PFW
III, Ltd.

Redemption Date has the meaning set forth in Section 10.01.

Redemption Price means 100% of the principal amount of the Debt Securities being redeemed plus accrued and unpaid interest on such Debt
Securities to the Redemption Date or, in the case of redemption at maturity, the Maturity Date, or, in the case of a redemption due to the occurrence of a Special Event, to the Special Redemption Date if such Special Redemption Date is on or after
June 6, 2012.

Responsible Officer means, with respect to the Trustee, any officer within the Principal Office of the
Trustee with direct responsibility for the administration of the Indenture, including any vice-president, any assistant vice-president, any secretary, any assistant secretary, the treasurer, any assistant treasurer, any trust officer or other
officer of the Principal Office of the Trustee customarily performing functions similar to those performed by any of the above designated officers and also means, with respect to a particular corporate trust matter, any other officer to whom such
matter is referred because of that officers knowledge of and familiarity with the particular subject.

Securities Act
means the Securities Act of 1933, as amended.



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Securityholder, holder of Debt Securities or other similar terms, means any
Person in whose name at the time a particular Debt Security is registered on the Debt Security Register.

Senior Indebtedness
means, with respect to the Company, (i) the principal, premium, if any, and interest in respect of (A) indebtedness of the Company for borrowed and purchased money, similar obligations arising from off-balance sheet guarantees and direct
credit substitutes and (B) indebtedness evidenced by securities, debentures, notes, bonds or other similar instruments issued by the Company; (ii) all capital lease obligations of the Company; (iii) all obligations of the Company
issued or assumed as the deferred purchase price of property, all conditional sale obligations of the Company and all obligations of the Company under any title retention agreement; (iv) all obligations of the Company for the reimbursement of
any letter of credit, any bankers acceptance, any security purchase facility, any repurchase agreement or similar arrangement, all obligations associated with derivative products such as interest rate and foreign exchange contracts and
commodity contracts, any interest rate swap, any other hedging arrangement, any obligation under options or any similar credit or other transaction; (v) all obligations of the type referred to in clauses (i) through (iv) above of
other Persons for the payment of which the Company is responsible or liable as obligor, guarantor or otherwise; and (vi) all obligations of the type referred to in clauses (i) through (v) above of other Persons secured by any lien on
any property or asset of the Company (whether or not such obligation is assumed by the Company), whether incurred on or prior to the date of this Indenture or thereafter incurred, unless, with the prior approval of the Federal Reserve if not
otherwise generally approved, it is provided in the instrument creating or evidencing the same or pursuant to which the same is outstanding, that such obligations are not superior or are pari passu in right of payment to the Debt Securities;
provided, however, that Senior Indebtedness shall not include (A) any debt securities issued to any trust other than the Trust (or a trustee of such trust) that is a financing vehicle of the Company (a financing entity), in
connection with the issuance by such financing entity of equity or other securities in transactions substantially similar in structure to the transactions contemplated hereunder and in the Declaration, (B) any guarantees of the Company in
respect of the equity or other securities of any financing entity referred to in clause (A) above or (C) trade accounts payable arising in the ordinary course of business.

Special Event means any of a Tax Event, an Investment Company Event or a Capital Treatment Event.

Special Redemption Date has the meaning set forth in Section 10.02.

Special Redemption Price means, with respect to the redemption of any Debt Security following a Special Event, an amount in cash equal to the
percentage for the principal amount of the Debt Securities that is specified below for the Special Redemption Date plus unpaid interest accrued thereon to the Special Redemption Date:



|                                                   |  |                               
|-------------------------------------------------- |  | ------------------------------
|Special Event Redemption DuringPeriod Beginning On |  | Percentage of Principal Amount
|March 27, 2007                                     |  | 104.40                        
|June 6, 2008                                       |  | 103.52                        
|June 6, 2009                                       |  | 102.64                        
|June 6, 2010                                       |  | 101.76                        
|June 6, 2011                                       |  | 100.88                        
|June 6, 2012                                       |  | 100.00                        



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Subsidiary means, with respect to any Person, (i) any corporation, at least a majority
of the outstanding voting stock of which is owned, directly or indirectly, by such Person or by one or more of its Subsidiaries, or by such Person and one or more of its Subsidiaries, (ii) any general partnership, joint venture or similar
entity, at least a majority of the outstanding partnership or similar interests of which shall at the time be owned by such Person, or by one or more of its Subsidiaries, or by such Person and one or more of its Subsidiaries, and (iii) any
limited partnership of which such Person or any of its Subsidiaries is a general partner. For the purposes of this definition, voting stock means shares, interests, participations or other equivalents in the equity interest (however
designated) in such Person having ordinary voting power for the election of a majority of the directors (or the equivalent) of such Person, other than shares, interests, participations or other equivalents having such power only by reason of the
occurrence of a contingency.

Tax Event means the receipt by the Company and the Trust of an Opinion of Counsel experienced in
such matters to the effect that, as a result of any amendment to or change (including any announced prospective change) in the laws or any regulations thereunder of the United States or any political subdivision or taxing authority thereof or
therein, or as a result of any official administrative pronouncement (including any private letter ruling, technical advice memorandum, regulatory procedure, notice or announcement (an Administrative Action)) or judicial decision
interpreting or applying such laws or regulations, regardless of whether such Administrative Action or judicial decision is issued to or in connection with a proceeding involving the Company or the Trust and whether or not subject to review or
appeal, which amendment, clarification, change, Administrative Action or decision is enacted, promulgated or announced, in each case on or after the date of original issuance of the Debt Securities, there is more than an insubstantial risk that:
(i) the Trust is, or will be within 90 days of the date of such opinion, subject to United States federal income tax with respect to income received or accrued on the Debt Securities; (ii) interest payable by the Company on the Debt
Securities is not, or within 90 days of the date of such opinion, will not be, deductible by the Company, in whole or in part, for United States federal income tax purposes; or (iii) the Trust is, or will be within 90 days of the date of such
opinion, subject to or otherwise required to pay, or required to withhold from distributions to holders of Trust Securities, more than a de minimis amount of other taxes (including withholding taxes), duties, assessments or other governmental
charges.

Trust means AMCORE Capital Trust II, a Delaware statutory trust, or any other similar trust created for the purpose
of issuing Capital Securities in connection with the issuance of Debt Securities under this Indenture, of which the Company is the sponsor.

Trust Indenture Act means the Trust Indenture Act of 1939, as amended from time-to-time, or any successor legislation.

Trust Securities means Common Securities and Capital Securities of the Trust.



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Trustee means the Person identified as Trustee in the first paragraph hereof,
and, subject to the provisions of Article VI hereof, shall also include its successors and assigns as Trustee hereunder.

United
States means the United States of America and the District of Columbia.

U.S. Person has the meaning given to United
States Person as set forth in Section 7701(a)(30) of the Code.

ARTICLE II

DEBT SECURITIES

Section 2.01. Authentication and Dating.

Upon the execution and delivery of this Indenture, or from time to time thereafter, Debt Securities in an aggregate principal amount not in excess of
$51,547,000 may be executed and delivered by the Company to the Trustee for authentication, and the Trustee shall thereupon authenticate and make available for delivery said Debt Securities to or upon the written order of the Company, signed by its
Chairman of the Board of Directors, Vice Chairman, President or Chief Financial Officer or one of its Vice Presidents, without any further action by the Company hereunder. In authenticating such Debt Securities, and accepting the additional
responsibilities under this Indenture in relation to such Debt Securities, the Trustee shall be entitled to receive, and (subject to Section 6.01) shall be fully protected in relying upon a copy of any Board Resolution or Board Resolutions
relating thereto and, if applicable, an appropriate record of any action taken pursuant to such resolution, in each case certified by the Secretary or an Assistant Secretary or other officer with appropriate delegated authority of the Company as the
case may be.

The Trustee shall have the right to decline to authenticate and deliver any Debt Securities under this Section if the
Trustee, being advised by counsel, determines that such action may not lawfully be taken or if a Responsible Officer of the Trustee in good faith shall determine that such action would expose the Trustee to personal liability to existing
securityholders.

The definitive Debt Securities shall be typed, printed, lithographed or engraved on steel engraved borders or may be
produced in any other manner, all as determined by the officers executing such Debt Securities, as evidenced by their execution of such Debt Securities.

Section 2.02. Form of Trustees Certificate of Authentication.

The Trustees
certificate of authentication on all Debt Securities shall be in substantially the following form:

This certificate represents Debt
Securities referred to in the within-mentioned Indenture.

WILMINGTON TRUST COMPANY, not in its individual capacity but solely as trustee



| |  |    |  |                   
| |  | -- |  | ------------------
| |  | By |  |                   
| |  |    |  | Authorized Officer



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Section 2.03. Form and Denomination of Debt Securities.

The Debt Securities shall be substantially in the form of Exhibit A hereto. The Debt Securities shall be in registered, certificated form without coupons
and in minimum denominations of $100,000 and any multiple of $1,000 in excess thereof. The Debt Securities shall be numbered, lettered, or otherwise distinguished in such manner or in accordance with such plans as the officers executing the same may
determine with the approval of the Trustee as evidenced by the execution and authentication thereof.

Section 2.04. Execution of
Debt Securities.

The Debt Securities shall be signed in the name and on behalf of the Company by the manual or facsimile signature of
its Chairman of the Board of Directors, Vice Chairman, Chief Executive Officer, President or Chief Financial Officer or one of its Executive Vice Presidents, Senior Vice Presidents, Vice Presidents or any other person authorized by the Board of
Directors to sign documents in the name and on behalf of the Company, under its corporate seal (if then legally required) which may be affixed thereto or printed, engraved or otherwise reproduced thereon, by facsimile or otherwise, and which need
not be attested. Only such Debt Securities as shall bear thereon a certificate of authentication substantially in the form herein before recited, executed by the Trustee or the Authenticating Agent by the manual signature of an authorized signer,
shall be entitled to the benefits of this Indenture or be valid or obligatory for any purpose. Such certificate by the Trustee or the Authenticating Agent upon any Debt Security executed by the Company shall be conclusive evidence that the Debt
Security so authenticated has been duly authenticated and delivered hereunder and that the holder is entitled to the benefits of this Indenture.

In case any officer of the Company who shall have signed any of the Debt Securities shall cease to be such officer before the Debt Securities so signed shall have been authenticated and delivered by the Trustee or the Authenticating Agent,
or disposed of by the Company, such Debt Securities nevertheless may be authenticated and delivered or disposed of as though the Person who signed such Debt Securities had not ceased to be such officer of the Company; and any Debt Security may be
signed on behalf of the Company by such Persons as, at the actual date of the execution of such Debt Security, shall be the proper officers of the Company, although at the date of the execution of this Indenture any such person was not such an
officer.

Every Debt Security shall be dated the date of its authentication.

Section 2.05. Exchange and Registration of Transfer of Debt Securities.

The Company shall cause to be kept, at the office or agency maintained for the purpose of registration of transfer and for exchange as provided in
Section 3.02, a register (the Debt Security Register) for the Debt Securities issued hereunder in which, subject to such reasonable regulations as it may prescribe, the Company shall provide for the registration and transfer of all
Debt Securities as provided in this Article II. Such register shall be in written form or in any other form capable of being converted into written form within a reasonable time.



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Debt Securities to be exchanged may be surrendered at the Principal Office of the Trustee or at any
office or agency to be maintained by the Company for such purpose as provided in Section 3.02, and the Company shall execute, the Company or the Trustee shall register and the Trustee or the Authenticating Agent shall authenticate and make
available for delivery in exchange therefor the Debt Security or Debt Securities which the Securityholder making the exchange shall be entitled to receive. Upon due presentment for registration of transfer of any Debt Security at the Principal
Office of the Trustee or at any office or agency of the Company maintained for such purpose as provided in Section 3.02, the Company shall execute, the Company or the Trustee shall register and the Trustee or the Authenticating Agent shall
authenticate and make available for delivery in the name of the transferee or transferees a new Debt Security for a like aggregate principal amount. Registration or registration of transfer of any Debt Security by the Trustee or by any agent of the
Company appointed pursuant to Section 3.02, and delivery of such Debt Security, shall be deemed to complete the registration or registration of transfer of such Debt Security.

All Debt Securities presented for registration of transfer or for exchange or payment shall (if so required by the Company or the Trustee or the
Authenticating Agent) be duly endorsed by, or be accompanied by, a written instrument or instruments of transfer in form satisfactory to the Company and either the Trustee or the Authenticating Agent duly executed by, the holder or such
holders attorney duly authorized in writing.

No service charge shall be made for any exchange or registration of transfer of Debt
Securities, but the Company or the Trustee may require payment of a sum sufficient to cover any tax, fee or other governmental charge that may be imposed in connection therewith.

The Company or the Trustee shall not be required to exchange or register a transfer of any Debt Security for a period of 15 days immediately preceding
the date of selection of Debt Securities for redemption.

Notwithstanding the foregoing, Debt Securities may not be transferred except in
compliance with the restricted securities legend set forth below, unless otherwise determined by the Company in accordance with applicable law, which legend shall be placed on each Debt Security:

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE SECURITIES ACT), OR ANY STATE SECURITIES LAWS OR ANY
OTHER APPLICABLE SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY ONLY (A) TO THE COMPANY,
(B) PURSUANT TO RULE 144A UNDER THE



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SECURITIES ACT (RULE 144A), TO A PERSON THE HOLDER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER AS DEFINED IN RULE 144A
THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (C) PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT TO AN ACCREDITED INVESTOR WITHIN THE MEANING OF SUBPARAGRAPH (a) (1), (2), (3) OR (7) OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF AN
ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (D) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANYS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSES (C) OR (D) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION
SATISFACTORY TO IT IN ACCORDANCE WITH THE INDENTURE, A COPY OF WHICH MAY BE OBTAINED FROM THE COMPANY. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES THAT IT WILL COMPLY WITH THE FOREGOING RESTRICTIONS.

THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES, REPRESENTS AND WARRANTS THAT IT WILL NOT ENGAGE IN HEDGING TRANSACTIONS INVOLVING THIS
SECURITY UNLESS SUCH TRANSACTIONS ARE IN COMPLIANCE WITH THE SECURITIES ACT.

THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF ALSO
AGREES, REPRESENTS AND WARRANTS THAT IT IS NOT AN EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (ERISA), OR SECTION 4975
OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE CODE), (EACH A PLAN), OR AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF ANY PLANS INVESTMENT IN THE ENTITY AND NO PERSON INVESTING
PLAN ASSETS OF ANY PLAN MAY ACQUIRE OR HOLD THIS SECURITY OR ANY INTEREST THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE FOR THE EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR PROHIBITED TRANSACTION CLASS EXEMPTION
96-23, 95-60, 91-38, 90-1, 84-14, THE NON-FIDUCIARY SERVICE PROVIDER EXEMPTION UNDER SECTION 408(B)(17) OF ERISA OR ANOTHER APPLICABLE EXEMPTION.

IN CONNECTION WITH ANY TRANSFER, THE HOLDER OF THIS SECURITY WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS MAY BE REQUIRED BY THE INDENTURE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE
FOREGOING RESTRICTIONS.



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THIS SECURITY WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN BLOCKS HAVING A PRINCIPAL AMOUNT OF NOT LESS
THAN $100,000 AND MULTIPLES OF $1,000 IN EXCESS THEREOF. ANY ATTEMPTED TRANSFER OF THIS SECURITY IN A BLOCK HAVING A PRINCIPAL AMOUNT OF LESS THAN $100,000 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT WHATSOEVER. ANY SUCH PURPORTED TRANSFEREE
SHALL BE DEEMED NOT TO BE THE HOLDER OF THIS SECURITY FOR ANY PURPOSE, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS ON THIS SECURITY, AND SUCH PURPORTED TRANSFEREE SHALL BE DEEMED TO HAVE NO INTEREST WHATSOEVER IN THIS SECURITY.

THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY THE UNITED STATES OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL
DEPOSIT INSURANCE CORPORATION. THIS OBLIGATION IS SUBORDINATED TO THE CLAIMS OF DEPOSITORS AND THE CLAIMS OF GENERAL AND SECURED CREDITORS OF THE COMPANY, IS INELIGIBLE AS COLLATERAL FOR A LOAN BY THE COMPANY OR ANY OF ITS SUBSIDIARIES AND IS NOT
SECURED.

Section 2.06. Mutilated, Destroyed, Lost or Stolen Debt Securities.

In case any Debt Security shall become mutilated or be destroyed, lost or stolen, the Company shall execute, and upon its written request the Trustee
shall authenticate and deliver, a new Debt Security bearing a number not contemporaneously outstanding, in exchange and substitution for the mutilated Debt Security, or in lieu of and in substitution for the Debt Security so destroyed, lost or
stolen. In every case the applicant for a substituted Debt Security shall furnish to the Company and the Trustee such security or indemnity as may be required by them to save each of them harmless, and, in every case of destruction, loss or theft,
the applicant shall also furnish to the Company and the Trustee evidence to their satisfaction of the destruction, loss or theft of such Debt Security and of the ownership thereof.

The Trustee may authenticate any such substituted Debt Security and deliver the same upon the written request or authorization of any officer of the
Company. Upon the issuance of any substituted Debt Security, the Company may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses connected therewith. In
case any Debt Security which has matured or is about to mature or has been called for redemption in full shall become mutilated or be destroyed, lost or stolen, the Company may, instead of issuing a substitute Debt Security, pay or authorize the
payment of the same (without surrender thereof except in the case of a mutilated Debt Security) if the applicant for such payment shall furnish to the Company and the Trustee such security or indemnity as may be required by them to save each of them
harmless and, in case of destruction, loss or theft, evidence satisfactory to the Company and to the Trustee of the destruction, loss or theft of such Security and of the ownership thereof.

Every substituted Debt Security issued pursuant to the provisions of this Section 2.06 by virtue of the fact that any such Debt Security is
destroyed, lost or stolen shall constitute an additional contractual obligation of the Company, whether or not the destroyed, lost or stolen



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Debt Security shall be found at any time, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Debt
Securities duly issued hereunder. All Debt Securities shall be held and owned upon the express condition that, to the extent permitted by applicable law, the foregoing provisions are exclusive with respect to the replacement or payment of mutilated,
destroyed, lost or stolen Debt Securities and shall preclude any and all other rights or remedies notwithstanding any law or statute existing or hereafter enacted to the contrary with respect to the replacement or payment of negotiable instruments
or other securities without their surrender.

Section 2.07. Temporary Debt Securities.

Pending the preparation of definitive Debt Securities, the Company may execute and the Trustee shall authenticate and make available for delivery
temporary Debt Securities that are typed, printed or lithographed. Temporary Debt Securities shall be issuable in any authorized denomination, and substantially in the form of the definitive Debt Securities but with such omissions, insertions and
variations as may be appropriate for temporary Debt Securities, all as may be determined by the Company. Every such temporary Debt Security shall be executed by the Company and be authenticated by the Trustee upon the same conditions and in
substantially the same manner, and with the same effect, as the definitive Debt Securities. Without unreasonable delay, the Company will execute and deliver to the Trustee or the Authenticating Agent definitive Debt Securities and thereupon any or
all temporary Debt Securities may be surrendered in exchange therefor, at the Principal Office of the Trustee or at any office or agency maintained by the Company for such purpose as provided in Section 3.02, and the Trustee or the
Authenticating Agent shall authenticate and make available for delivery in exchange for such temporary Debt Securities a like aggregate principal amount of such definitive Debt Securities. Such exchange shall be made by the Company at its own
expense and without any charge therefor except that in case of any such exchange involving a registration of transfer the Company may require payment of a sum sufficient to cover any tax, fee or other governmental charge that may be imposed in
relation thereto. Until so exchanged, the temporary Debt Securities shall in all respects be entitled to the same benefits under this Indenture as definitive Debt Securities authenticated and delivered hereunder.

Section 2.08. Payment of Interest.

Each Debt Security will bear interest at the then applicable Interest Rate from and including each Interest Payment Date or, in the case of the first interest period, the original date of issuance of such Debt Security to, but excluding,
the next succeeding Interest Payment Date or, in the case of the last interest period, the Redemption Date, Special Redemption Date or Maturity Date, as applicable (each such period, an Interest Period), on the principal thereof, on any
overdue principal and (to the extent that payment of such interest is enforceable under applicable law) on Deferred Interest and on any overdue installment of interest (including Defaulted Interest), payable (subject to the provisions of Article XV)
on each Interest Payment Date commencing on June 6, 2007, and on the Redemption Date, the Special Redemption Date or the Maturity Date, as the case may be. Interest and any Deferred Interest on any Debt Security that is payable, and is
punctually paid or duly provided for, on any Interest Payment Date shall be paid to the Person in whose name such Debt Security (or one or more Predecessor Securities) is registered at the close of business on the regular record date for such
interest



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installment, except that interest and any Deferred Interest payable on the Maturity Date, the Redemption Date or the Special Redemption Date, as the case may
be, shall be paid to the Person to whom principal is paid. In the event that any Debt Security or portion thereof is called for redemption and the redemption date is subsequent to a regular record date with respect to any Interest Payment Date and
prior to such Interest Payment Date, interest on such Debt Security will be paid upon presentation and surrender of such Debt Security.

Any interest on any Debt Security, other than Deferred Interest, that is payable, but is not punctually paid or duly provided for, on any Interest Payment Date (herein called Defaulted Interest) shall forthwith cease to be
payable to the registered holder on the relevant regular record date by virtue of having been such holder, and such Defaulted Interest shall be paid by the Company to the Persons in whose names such Debt Securities (or their respective Predecessor
Securities) are registered at the close of business on a special record date for the payment of such Defaulted Interest, which shall be fixed in the following manner: the Company shall notify the Trustee in writing of the amount of Defaulted
Interest proposed to be paid on each such Debt Security and the date of the proposed payment, and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount proposed to be paid in respect of such
Defaulted Interest or shall make arrangements satisfactory to the Trustee for such deposit prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Interest as
in this clause provided. Thereupon the Trustee shall fix a special record date for the payment of such Defaulted Interest which shall not be more than fifteen nor less than ten days prior to the date of the proposed payment and not less than ten
days after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company of such special record date and, in the name and at the expense of the Company, shall cause notice of the proposed payment of
such Defaulted Interest and the special record date therefor to be mailed, first class postage prepaid, to each Securityholder at his or her address as it appears in the Debt Security Register, not less than ten days prior to such special record
date. Notice of the proposed payment of such Defaulted Interest and the special record date therefor having been mailed as aforesaid, such Defaulted Interest shall be paid to the Persons in whose names such Debt Securities (or their respective
Predecessor Securities) are registered on such special record date and thereafter the Company shall have no further payment obligation in respect of the Defaulted Interest.

Any interest scheduled to become payable on an Interest Payment Date occurring during an Extension Period shall not be Defaulted Interest and shall be
payable on such other date as may be specified in the terms of such Debt Securities.

The term regular record date as used in
this Section shall mean the fifteenth day prior to the applicable Interest Payment Date whether or not such date is a Business Day.

Subject to the foregoing provisions of this Section, each Debt Security delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Debt Security shall carry the rights to interest accrued and
unpaid, and to accrue, that were carried by such other Debt Security.



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Section 2.09. Cancellation of Debt Securities Paid, etc.

All Debt Securities surrendered for the purpose of payment, redemption, exchange or registration of transfer, shall, if surrendered to the Company or any
Paying Agent, be surrendered to the Trustee and promptly canceled by it, or, if surrendered to the Trustee or any Authenticating Agent, shall be promptly canceled by it, and no Debt Securities shall be issued in lieu thereof except as expressly
permitted by any of the provisions of this Indenture. All Debt Securities canceled by any Authenticating Agent shall be delivered to the Trustee. The Trustee shall destroy all canceled Debt Securities unless the Company otherwise directs the Trustee
in writing, in which case the Trustee shall dispose of such Debt Securities as directed by the Company. If the Company shall acquire any of the Debt Securities, however, such acquisition shall not operate as a redemption or satisfaction of the
indebtedness represented by such Debt Securities unless and until the same are surrendered to the Trustee for cancellation.

Section 2.10. Computation of Interest.

(a) The amount of interest payable for each Interest Period during the Fixed
Period will be computed on the basis of a 360-day year and twelve 30-day months and, thereafter, on the basis of a 360-day year and the actual number of days elapsed in such Interest Period; provided, however, that upon the occurrence
of a Special Event redemption pursuant to Section 10.02 the amounts payable pursuant to this Indenture shall be calculated as set forth in the definition of Special Redemption Price.

(b) LIBOR shall be determined by the Calculation Agent for each Interest Period after the end of the Interest Period with respect to the Interest Payment
Date occurring in June 2012 (the Fixed Period) in accordance with the following provisions:

(1) On the second
LIBOR Business Day (provided, that on such day commercial banks are open for business (including dealings in foreign currency deposits) in London (a LIBOR Banking Day), and otherwise the next preceding LIBOR Business Day that is
also a LIBOR Banking Day) prior to March 6, June 6, September 6 and December 6, as the case may be, immediately preceding the commencement of such Interest Period (each such day, a LIBOR Determination Date),
LIBOR shall equal the rate, as obtained by the Calculation Agent for three-month U.S. Dollar deposits in Europe, which appears on Telerate (as defined in the International Swaps and Derivatives Association, Inc. 2000 Interest Rate and Currency
Exchange Definitions) Page 3750 or such other page as may replace such Telerate Page 3750, as of 11:00 a.m. (London time) on such LIBOR Determination Date, as reported by Bloomberg Financial Markets Commodities News (or any successor service).
LIBOR Business Day means any day that is not a Saturday, Sunday or other day on which commercial banking institutions in New York, New York or Wilmington, Delaware are authorized or obligated by law or executive order to be closed. If
such rate is superseded on Telerate Page 3750 by a corrected rate before 12:00 noon (London time) on the same LIBOR Determination Date, the corrected rate as so substituted will be the applicable LIBOR for that LIBOR Determination Date.

(2) If, on any LIBOR Determination Date, such rate does not appear on Telerate Page 3750 as reported by Bloomberg Financial Markets
Commodities



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News or such other page as may replace such Telerate Page 3750, the Calculation Agent shall determine the arithmetic mean of the offered quotations of the
Reference Banks (as defined below) to leading banks in the London interbank market for three-month U.S. Dollar deposits in Europe (in an amount determined by the Calculation Agent) by reference to requests for quotations as of approximately
11:00 a.m. (London time) on the LIBOR Determination Date made by the Calculation Agent to the Reference Banks. If, on any LIBOR Determination Date, at least two of the Reference Banks provide such quotations, LIBOR shall equal the arithmetic mean of
such quotations. If, on any LIBOR Determination Date, only one or none of the Reference Banks provide such a quotation, LIBOR shall be deemed to be the arithmetic mean of the offered quotations that at least two leading banks in the City of New York
(as selected by the Calculation Agent) are quoting on the relevant LIBOR Determination Date for three-month U.S. Dollar deposits in Europe at approximately 11:00 a.m. (London time) (in an amount determined by the Calculation Agent). As used
herein, Reference Banks means four major banks in the London interbank market selected by the Calculation Agent.

(3) If the Calculation Agent is required but is unable to determine a rate in accordance with at least one of the procedures provided above, LIBOR shall be LIBOR in effect on the previous LIBOR Determination Date (whether or not LIBOR for
such period was in fact determined on such LIBOR Determination Date).

(c) All percentages resulting from any calculations on the Debt
Securities will be rounded, if necessary, to the nearest one hundred-thousandth of a percentage point, with five one-millionths of a percentage point rounded upward (e.g., 9.876545% (or .09876545) being rounded to 9.87655% (or .0987655)), and all
dollar amounts used in or resulting from such calculation will be rounded to the nearest cent (with one-half cent being rounded upward).

(d) On each LIBOR Determination Date, the Calculation Agent shall notify, in writing, the Company and the Paying Agent of the applicable Interest Rate in effect for the related Interest Period. The Calculation Agent shall, upon the request
of the holder of any Debt Securities, provide the Interest Rate then in effect. All calculations made by the Calculation Agent in the absence of manifest error shall be conclusive for all purposes and binding on the Company and the holders of the
Debt Securities. The Paying Agent shall be entitled to rely on information received from the Calculation Agent or the Company as to the Interest Rate. The Company shall, from time to time, provide any necessary information to the Paying Agent
relating to any original issue discount and interest on the Debt Securities that is included in any payment and reportable for taxable income calculation purposes.

Section 2.11. Extension of Interest Payment Period.

So long as no Event of Default pursuant to
Sections 5.01(b), (e) or (f) of this Indenture has occurred and is continuing, the Company shall have the right, from time to time and without causing an Event of Default, to defer payments of interest on the Debt Securities by extending
the interest payment period on the Debt Securities at any time and from time to time



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during the term of the Debt Securities, for up to twenty consecutive quarterly periods (each such extended interest payment period, an Extension
Period). No Extension Period may end on a date other than an Interest Payment Date. During any Extension Period, interest will continue to accrue on the Debt Securities, and interest on such accrued interest (such accrued interest and interest
thereon referred to herein as Deferred Interest) will accrue, at the Interest Rate, compounded quarterly from the date such Deferred Interest would have been payable were it not for the Extension Period, both to the extent permitted by
law. No interest or Deferred Interest (except any Additional Interest that may be due and payable) shall be due and payable during an Extension Period, except at the end thereof. At the end of any such Extension Period the Company shall pay all
Deferred Interest then accrued and unpaid on the Debt Securities; provided,however, that no Extension Period may extend beyond the Maturity Date, Redemption Date or Special Redemption Date; and provided further,
however, that during any such Extension Period, the Company shall be subject to the restrictions set forth in Section 3.08 of this Indenture. Prior to the termination of any Extension Period, the Company may further extend such period,
provided, that such period together with all such previous and further consecutive extensions thereof shall not exceed twenty consecutive quarterly periods. Upon the termination of any Extension Period and upon the payment of all Deferred
Interest, the Company may commence a new Extension Period, subject to the foregoing requirements. The Company must give the Trustee notice of its election to begin such Extension Period not later than the related regular record date. The Trustee
shall give notice of the Companys election to begin a new Extension Period to the Securityholders.

Section 2.12. CUSIP
Numbers.

The Company in issuing the Debt Securities may use CUSIP numbers (if then generally in use), and, if so, the
Trustee shall use CUSIP numbers in notices of redemption as a convenience to Securityholders; provided, that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the
Debt Securities or as contained in any notice of a redemption and that reliance may be placed only on the other identification numbers printed on the Debt Securities, and any such redemption shall not be affected by any defect in or omission of such
numbers. The Company will promptly notify the Trustee in writing of any change in the CUSIP numbers.

ARTICLE III

PARTICULAR COVENANTS OF THE COMPANY

Section 3.01. Payment of Principal, Premium and Interest; Agreed Treatment of the Debt Securities.

(a) The Company
covenants and agrees that it will duly and punctually pay or cause to be paid all payments due on the Debt Securities at the place, at the respective times and in the manner provided in this Indenture and the Debt Securities. At the option of the
Company, each installment of interest on the Debt Securities may be paid (i) by mailing checks for such interest payable to the order of the holders of Debt Securities entitled thereto as they appear on the Debt Security Register or
(ii) by wire transfer to any account with a banking institution located in the United States designated by such Person to the Paying Agent no later than the related record date.



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(b) The Company will treat the Debt Securities as indebtedness, and the interest payable in respect of
such Debt Securities as interest, for all U.S. federal income tax purposes. All payments in respect of such Debt Securities will be made free and clear of U.S. withholding tax to any beneficial owner thereof that has provided an Internal Revenue
Service Form W-8BEN (or any substitute or successor form) establishing its non-U.S. status for U.S. federal income tax purposes.

(c) As of
the date of this Indenture, the Company has no intention to exercise its right under Section 2.11 to defer payments of interest on the Debt Securities by commencing an Extension Period.

(d) As of the date of this Indenture, the Company represents that the likelihood that it would exercise its right under Section 2.11 to defer
payments of interest on the Debt Securities by commencing an Extension Period at any time during which the Debt Securities are outstanding is remote because of the restrictions that would be imposed on the Companys ability to declare or pay
dividends or distributions on, or to redeem, purchase or make a liquidation payment with respect to, any of its outstanding equity and on the Companys ability to make any payments of principal of or premium, if any, or interest on, or
repurchase or redeem, any of its debt securities that rank pari passu in all respects with (or junior in interest to) the Debt Securities.

Section 3.02. Offices for Notices and Payments, etc.

So long as any of the Debt Securities remain outstanding, the
Company will maintain in Wilmington, Delaware or in Rockford, Illinois an office or agency where the Debt Securities may be presented for payment, an office or agency where the Debt Securities may be presented for registration of transfer and for
exchange as provided in this Indenture and an office or agency where notices and demands to or upon the Company in respect of the Debt Securities or of this Indenture may be served. The Company will give to the Trustee written notice of the location
of any such office or agency and of any change of location thereof. Until otherwise designated from time to time by the Company in a notice to the Trustee, or specified as contemplated by Section 2.05, such office or agency for all of the above
purposes shall be the Principal Office of the Trustee. In case the Company shall fail to maintain any such office or agency in Wilmington, Delaware or in Rockford, Illinois or shall fail to give such notice of the location or of any change in the
location thereof, presentations and demands may be made and notices may be served at the Principal Office of the Trustee.

In addition to
any such office or agency, the Company may from time to time designate one or more offices or agencies outside Wilmington, Delaware or Rockford, Illinois where the Debt Securities may be presented for registration of transfer and for exchange in the
manner provided in this Indenture, and the Company may from time to time rescind such designation, as the Company may deem desirable or expedient; provided, however, that no such designation or rescission shall in any manner relieve
the Company of its obligation to maintain any such office or agency in Wilmington, Delaware or in Rockford, Illinois for the purposes above mentioned. The Company will give to the Trustee prompt written notice of any such designation or rescission
thereof.



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Section 3.03. Appointments to Fill Vacancies in Trustees Office.

The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section 6.09, a Trustee,
so that there shall at all times be a Trustee hereunder.

Section 3.04. Provision as to Paying Agent.

(a) If the Company shall appoint a Paying Agent other than the Trustee, it will cause such Paying Agent to execute and deliver to the Trustee an
instrument in which such agent shall agree with the Trustee, subject to the provision of this Section 3.04,

(1) that
it will hold all sums held by it as such agent for the payment of all payments due on the Debt Securities (whether such sums have been paid to it by the Company or by any other obligor on the Debt Securities) in trust for the benefit of the holders
of the Debt Securities;

(2) that it will give the Trustee prompt written notice of any failure by the Company (or by any
other obligor on the Debt Securities) to make any payment on the Debt Securities when the same shall be due and payable; and

(3) that it will, at any time during the continuance of any Event of Default, upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent.

(b) If the Company shall act as its own Paying Agent, it will, on or before each due date of the payments due on the Debt Securities, set aside,
segregate and hold in trust for the benefit of the holders of the Debt Securities a sum sufficient to pay such principal, premium or interest so becoming due and will notify the Trustee in writing of any failure to take such action and of any
failure by the Company (or by any other obligor under the Debt Securities) to make any payment on the Debt Securities when the same shall become due and payable.

Whenever the Company shall have one or more Paying Agents for the Debt Securities, it will, on or prior to each due date of the payments on the Debt Securities, deposit with a Paying Agent a sum sufficient to pay all
payments so becoming due, such sum to be held in trust for the benefit of the Persons entitled thereto and (unless such Paying Agent is the Trustee) the Company shall promptly notify the Trustee in writing of its action or failure to act.

(c) Anything in this Section 3.04 to the contrary notwithstanding, the Company may, at any time, for the purpose of obtaining a
satisfaction and discharge with respect to the Debt Securities, or for any other reason, pay, or direct any Paying Agent to pay to the Trustee all sums held in trust by the Company or any such Paying Agent, such sums to be held by the Trustee upon
the same terms and conditions herein contained.



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(d) Anything in this Section 3.04 to the contrary notwithstanding, the agreement to hold sums in
trust as provided in this Section 3.04 is subject to Sections 12.03 and 12.04.

(e) The Company hereby initially appoints the Trustee
to act as Paying Agent.

Section 3.05. Certificate to Trustee.

The Company will deliver to the Trustee on or before 120 days after the end of each fiscal year, so long as Debt Securities are outstanding hereunder, a
Certificate, substantially in the form of Exhibit B attached hereto, stating that in the course of the performance by the signers of their duties as officers of the Company they would normally have knowledge of any default by the Company in the
performance of any covenants contained herein, stating whether or not they have knowledge of any such default and, if so, specifying each such default of which the signers have knowledge and the nature thereof.

Section 3.06. Additional Interest.

If and for so long as the Trust is the holder of all Debt Securities and is subject to, or otherwise required to pay, or is required to withhold from distributions to holders of Trust Securities, any additional taxes (including withholding
taxes), duties, assessments or other governmental charges as a result of a Tax Event, the Company will pay such additional amounts (the Additional Interest) on the Debt Securities as shall be required so that the net amounts received and
retained by the Trust after paying taxes, duties, assessments or other governmental charges will be equal to the amounts the Trust would have received if no such taxes, duties, assessments or other governmental charges had been imposed. Whenever in
this Indenture or the Debt Securities there is a reference in any context to the payment of principal of or premium, if any, or interest on the Debt Securities, such mention shall be deemed to include mention of payments of the Additional Interest
provided for in this paragraph to the extent that, in such context, Additional Interest is, was or would be payable in respect thereof pursuant to the provisions of this paragraph and express mention of the payment of Additional Interest (if
applicable) in any provisions hereof shall not be construed as excluding Additional Interest in those provisions hereof where such express mention is not made, provided, however, that the deferral of the payment of interest during an
Extension Period pursuant to Section 2.11 shall not defer the payment of any Additional Interest that may be due and payable.

Section 3.07. Compliance with Consolidation Provisions.

The Company will not, while any of the Debt Securities remain
outstanding, consolidate with, or merge into any other Person, or merge into itself, or sell or convey all or substantially all of its property to any other Person unless the provisions of Article XI hereof are complied with.

Section 3.08. Limitation on Dividends.

If (i) there shall have occurred and be continuing a Default or an Event of Default, (ii) the Company shall be in default with respect to its payment of any obligations under the Capital Securities Guarantee or (iii) the
Company shall have given notice of its election to defer



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payments of interest on the Debt Securities by extending the interest payment period as provided herein and such period, or any extension thereof, shall have
commenced and be continuing, then the Company may not (A) declare or pay any dividends or distributions on, or redeem, purchase, acquire, or make a liquidation payment with respect to, any of the Companys capital stock, (B) make any
payment of principal of or interest or premium, if any, on or repay, repurchase or redeem any debt securities of the Company that rank pari passu in all respects with or junior in interest to the Debt Securities or (C) make any payment
under any guarantees of the Company that rank pari passuin all respects with or junior in interest to the Capital Securities Guarantee (other than (a) repurchases, redemptions or other acquisitions of shares of capital stock of the
Company (I) in connection with any employment contract, benefit plan or other similar arrangement with or for the benefit of one or more employees, officers, directors or consultants, (II) in connection with a dividend reinvestment or
stockholder stock purchase plan or (III) in connection with the issuance of capital stock of the Company (or securities convertible into or exercisable for such capital stock) as consideration in an acquisition transaction entered into prior to the
occurrence of (i), (ii) or (iii) above, (b) as a result of any exchange or conversion of any class or series of the Companys capital stock (or any capital stock of a subsidiary of the Company) for any class or series of the
Companys capital stock or of any class or series of the Companys indebtedness for any class or series of the Companys capital stock, (c) the purchase of fractional interests in shares of the Companys capital stock
pursuant to the conversion or exchange provisions of such capital stock or the security being converted or exchanged, (d) any declaration of a dividend in connection with any stockholders rights plan, or the issuance of rights, stock or
other property under any stockholders rights plan, or the redemption or repurchase of rights pursuant thereto or (e) any dividend in the form of stock, warrants, options or other rights where the dividend stock or the stock issuable upon
exercise of such warrants, options or other rights is the same stock as that on which the dividend is being paid or ranks pari passuwith or junior in interest to such stock) and any cash payments in lieu of fractional shares issued in
connection therewith.

Section 3.09. Covenants as to the Trust.

For so long as such Trust Securities remain outstanding, the Company shall maintain 100% ownership of the Common Securities; provided,
however, that any permitted successor of the Company under this Indenture that is a U.S. Person may succeed to the Companys ownership of such Common Securities. The Company, as owner of the Common Securities, shall use commercially
reasonable efforts to cause the Trust (a) to remain a statutory trust, except in connection with a distribution of Debt Securities to the holders of Trust Securities in liquidation of the Trust, the redemption of all of the Trust Securities or
certain mergers, consolidations or amalgamations, each as permitted by the Declaration, (b) to otherwise continue to be classified as a grantor trust for United States federal income tax purposes and (c) to cause each holder of Trust
Securities to be treated as owning an undivided beneficial interest in the Debt Securities.



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ARTICLE IV

LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE

Section 4.01. Securityholders Lists.

The Company covenants and agrees that it will furnish or cause to be furnished to the Trustee:

(a) on each regular record date for an Interest Payment Date, a list, in such form as the Trustee may reasonably require, of the names and addresses of
the Securityholders of the Debt Securities as of such record date; and

(b) at such other times as the Trustee may request in writing,
within 30 days after the receipt by the Company of any such request, a list of similar form and content as of a date not more than 15 days prior to the time such list is furnished; except that no such lists need be furnished under this
Section 4.01 so long as the Trustee is in possession thereof by reason of its acting as Debt Security registrar.

Section 4.02.
Preservation and Disclosure of Lists.

(a) The Trustee shall preserve, in as current a form as is reasonably practicable, all
information as to the names and addresses of the holders of Debt Securities (1) contained in the most recent list furnished to it as provided in Section 4.01 or (2) received by it in the capacity of Debt Securities registrar (if so
acting) hereunder. The Trustee may destroy any list furnished to it as provided in Section 4.01 upon receipt of a new list so furnished.

(b) In case three or more holders of Debt Securities (hereinafter referred to as applicants) apply in writing to the Trustee and furnish to the Trustee reasonable proof that each such applicant has owned a Debt Security for a
period of at least six months preceding the date of such application, and such application states that the applicants desire to communicate with other holders of Debt Securities with respect to their rights under this Indenture or under such Debt
Securities and is accompanied by a copy of the form of proxy or other communication which such applicants propose to transmit, then the Trustee shall within five Business Days after the receipt of such application, at its election, either:

(1) afford such applicants access to the information preserved at the time by the Trustee in accordance with the provisions
of subsection (a) of this Section 4.02, or

(2) inform such applicants as to the approximate number of holders of
Debt Securities whose names and addresses appear in the information preserved at the time by the Trustee in accordance with the provisions of subsection (a) of this Section 4.02, and as to the approximate cost of mailing to such
Securityholders the form of proxy or other communication, if any, specified in such application.

If the Trustee shall elect not to afford
such applicants access to such information, the Trustee shall, upon the written request of such applicants, mail to each Securityholder of Debt Securities whose name and address appear in the information preserved at the time by the Trustee in
accordance with the provisions of subsection (a) of this Section 4.02 a copy of the form of proxy or other communication which is specified in such request with reasonable promptness after a tender to the Trustee of the material to be
mailed and of payment, or provision for the payment, of the reasonable expenses of mailing, unless within five days after such tender,



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the Trustee shall mail to such applicants and file with the Securities and Exchange Commission, if permitted or required by applicable law, together with a
copy of the material to be mailed, a written statement to the effect that, in the opinion of the Trustee, such mailing would be contrary to the best interests of the holders of all Debt Securities, as the case may be, or would be in violation of
applicable law. Such written statement shall specify the basis of such opinion. If said Commission, as permitted or required by applicable law, after opportunity for a hearing upon the objections specified in the written statement so filed, shall
enter an order refusing to sustain any of such objections or if, after the entry of an order sustaining one or more of such objections, said Commission shall find, after notice and opportunity for hearing, that all the objections so sustained have
been met and shall enter an order so declaring, the Trustee shall mail copies of such material to all such Securityholders with reasonable promptness after the entry of such order and the renewal of such tender; otherwise the Trustee shall be
relieved of any obligation or duty to such applicants respecting their application.

(c) Each and every holder of Debt Securities, by
receiving and holding the same, agrees with the Company and the Trustee that neither the Company nor the Trustee nor any Paying Agent shall be held accountable by reason of the disclosure of any such information as to the names and addresses of the
holders of Debt Securities in accordance with the provisions of subsection (b) of this Section 4.02, regardless of the source from which such information was derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under said subsection (b).

Section 4.03. Financial and Other Information.

(a) The Company shall deliver to each holder of the Debt Securities and the Capital Securities (1) if the Company or any of its Subsidiaries is
not then (x) subject to Section 13 or 15(d) of the Exchange Act or (y) exempt from reporting pursuant to Rule 12g3-2(b) thereunder, the information required by Rule 144A(d)(4) under the Securities Act and (2) if the Company is
not then required to file Form FR Y-9C, the audited annual financial statements (or, if no audited financial statements are prepared, the unaudited financial statements) of the Company and any Subsidiaries within 90 days after the end of the fiscal
year. The Company shall deliver or cause the Paying Agent to deliver within 30 days after the end of the fiscal year of the Company, Form 1099 or such other annual U.S. federal income tax information statement required by the Code, containing such
information with regard to the Debt Securities held by such holder as is required by the Code and the income tax regulations of the U.S. Treasury thereunder.

(b) If and so long as the holder of the Capital Securities is an entity that holds a pool of trust preferred securities, debt securities and/or similar securities or a trustee thereof, the Company will cause copies of
its reports on Form FR Y-9C to be delivered to the holder promptly following their filing with the Federal Reserve.



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ARTICLE V

REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS UPON AN EVENT OF DEFAULT

Section 5.01. Events of
Default.

The following events shall be Events of Default with respect to Debt Securities:

(a) the Company defaults in the payment of any interest upon any Debt Security when it becomes due and payable, and continuance of such default for a
period of 30 days; for the avoidance of doubt, an extension of any interest payment period by the Company in accordance with Section 2.11 of this Indenture shall not constitute a default under this clause 5.01(a); or

(b) the Company defaults in the payment of any interest upon any Debt Security, including any Additional Interest in respect thereof, following the
nonpayment of any such interest for twenty (20) or more consecutive quarterly interest payment periods; or

(c) the Company defaults
in the payment of all or any part of the principal of (or premium, if any, on) any Debt Securities as and when the same shall become due and payable either at maturity, upon redemption, by declaration of acceleration or otherwise; or

(d) the Company defaults in the performance of, or breaches, any of its covenants or agreements in Sections 3.06, 3.07, 3.08 or 3.09 of this Indenture
(other than a covenant or agreement a default in whose performance or whose breach is elsewhere in this Section specifically dealt with), and continuance of such default or breach for a period of 90 days after there has been given, by registered or
certified mail, to the Company by the Trustee or to the Company and the Trustee by the holders of not less than 25% in aggregate principal amount of the outstanding Debt Securities, a written notice specifying such default or breach and requiring it
to be remedied and stating that such notice is a Notice of Default hereunder; or

(e) a court having jurisdiction in the
premises shall enter a decree or order for relief in respect of the Company in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or appoints a receiver, liquidator, assignee, custodian,
trustee, sequestrator (or other similar official) of the Company or for any substantial part of its property, or orders the winding-up or liquidation of its affairs and such decree or order shall remain unstayed and in effect for a period of 90
consecutive days; or

(f) the Company shall commence a voluntary case under any applicable bankruptcy, insolvency or other similar law now
or hereafter in effect, shall consent to the entry of an order for relief in an involuntary case under any such law, or shall consent to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian, sequestrator
(or other similar official) of the Company or of any substantial part of its property, or shall make any general assignment for the benefit of creditors, or shall fail generally to pay its debts as they become due; or

(g) the Trust shall have voluntarily or involuntarily liquidated, dissolved, wound-up its business or otherwise terminated its existence except in
connection with (1) the distribution of the Debt Securities to holders of the Trust Securities in liquidation of their interests in the Trust, (2) the redemption of all of the outstanding Trust Securities or (3) certain mergers,
consolidations or amalgamations, each as permitted by the Declaration.



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If an Event of Default specified under clause (b) of this Section 5.01 occurs and is continuing
with respect to the Debt Securities, then, in each and every such case, either the Trustee or the holders of not less than 25% in aggregate principal amount of the Debt Securities then outstanding hereunder, by notice in writing to the Company (and
to the Trustee if given by Securityholders), may declare the entire principal of the Debt Securities and any premium and interest accrued, but unpaid, thereon to be due and payable immediately, and upon any such declaration the same shall become
immediately due and payable. If an Event of Default specified under clause (e) or (f) of this Section 5.01 occurs, then, in each and every such case, the entire principal amount of the Debt Securities and any premium and interest
accrued, but unpaid, thereon shall ipso facto become immediately due and payable without further action.

The foregoing provisions,
however, are subject to the condition that if, at any time after the principal of the Debt Securities shall have become due by acceleration, and before any judgment or decree for the payment of the moneys due shall have been obtained or entered as
hereinafter provided, (i) the Company shall pay or shall deposit with the Trustee a sum sufficient to pay all matured installments of interest upon all the Debt Securities and all payments on the Debt Securities which shall have become due
otherwise than by acceleration (with interest upon all such payments and Deferred Interest, to the extent permitted by law) and such amount as shall be sufficient to cover reasonable compensation to the Trustee and each predecessor Trustee, their
respective agents, attorneys and counsel, and all other amounts due to the Trustee pursuant to Section 6.06, if any, and (ii) all Events of Default under this Indenture, other than the non-payment of the payments on Debt Securities which
shall have become due by acceleration, shall have been cured, waived or otherwise remedied as provided herein, then and in every such case the holders of a majority in aggregate principal amount of the Debt Securities then outstanding, by written
notice to the Company and to the Trustee, may waive all defaults and rescind and annul such acceleration and its consequences, but no such waiver or rescission and annulment shall extend to or shall affect any subsequent default or shall impair any
right consequent thereon.

In case the Trustee shall have proceeded to enforce any right under this Indenture and such proceedings shall
have been discontinued or abandoned because of such rescission or annulment or for any other reason or shall have been determined adversely to the Trustee, then and in every such case the Company, the Trustee and the holders of the Debt Securities
shall be restored respectively to their several positions and rights hereunder, and all rights, remedies and powers of the Company, the Trustee and the holders of the Debt Securities shall continue as though no such proceeding had been taken.

Section 5.02. Payment of Debt Securities on Default; Suit Therefor.

The Company covenants that upon the occurrence of an Event of Default pursuant to clause (b) of Section 5.01 and upon demand of the Trustee, the
Company will pay to the Trustee, for the benefit of the holders of the Debt Securities, the whole amount that then shall have become due and payable on all Debt Securities, including Deferred Interest accrued on the Debt Securities; and, in addition
thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including a reasonable compensation to the Trustee, its agents, attorneys and counsel, and any other amounts due to the Trustee under
Section 6.06. In case the Company shall fail forthwith to pay such amounts upon such demand, the Trustee, in its own



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name and as trustee of an express trust, shall be entitled and empowered to institute any actions or proceedings at law or in equity for the collection of
the sums so due and unpaid, and may prosecute any such action or proceeding to judgment or final decree, and may enforce any such judgment or final decree against the Company or any other obligor on such Debt Securities and collect in the manner
provided by law out of the property of the Company or any other obligor on such Debt Securities wherever situated the moneys adjudged or decreed to be payable.

In case there shall be pending proceedings for the bankruptcy or for the reorganization of the Company or any other obligor on the Debt Securities under Bankruptcy Law, or in case a receiver or trustee shall have been
appointed for the property of the Company or such other obligor, or in the case of any other similar judicial proceedings relative to the Company or other obligor upon the Debt Securities, or to the creditors or property of the Company or such other
obligor, the Trustee, irrespective of whether the principal of the Debt Securities shall then be due and payable as therein expressed or by acceleration or otherwise and irrespective of whether the Trustee shall have made any demand pursuant to the
provisions of this Section 5.02, shall be entitled and empowered, by intervention in such proceedings or otherwise, to file and prove a claim or claims for the whole amount of principal and interest owing and unpaid in respect of the Debt
Securities and, in case of any judicial proceedings, to file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for reasonable compensation to the
Trustee and each predecessor Trustee, and their respective agents, attorneys and counsel, and for reimbursement of all other amounts due to the Trustee under Section 6.06) and of the Securityholders allowed in such judicial proceedings relative
to the Company or any other obligor on the Debt Securities, or to the creditors or property of the Company or such other obligor, unless prohibited by applicable law and regulations, to vote on behalf of the holders of the Debt Securities in any
election of a trustee or a standby trustee in arrangement, reorganization, liquidation or other bankruptcy or insolvency proceedings or Person performing similar functions in comparable proceedings, and to collect and receive any moneys or other
property payable or deliverable on any such claims, and to distribute the same after the deduction of its charges and expenses; and any receiver, assignee or trustee in bankruptcy or reorganization is hereby authorized by each of the Securityholders
to make such payments to the Trustee, and, in the event that the Trustee shall consent to the making of such payments directly to the Securityholders, to pay to the Trustee such amounts as shall be sufficient to cover reasonable compensation to the
Trustee, each predecessor Trustee and their respective agents, attorneys and counsel, and all other amounts due to the Trustee under Section 6.06.

Nothing herein contained shall be construed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Securityholder any plan of reorganization, arrangement, adjustment or composition
affecting the Debt Securities or the rights of any holder thereof or to authorize the Trustee to vote in respect of the claim of any Securityholder in any such proceeding.

All rights of action and of asserting claims under this Indenture, or under any of the Debt Securities, may be enforced by the Trustee without the
possession of any of the Debt Securities, or the production thereof at any trial or other proceeding relative thereto, and any such suit or proceeding instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall be for the ratable benefit of the holders of the Debt Securities.



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In any proceedings brought by the Trustee (and also any proceedings involving the interpretation of any
provision of this Indenture to which the Trustee shall be a party) the Trustee shall be held to represent all the holders of the Debt Securities, and it shall not be necessary to make any holders of the Debt Securities parties to any such
proceedings.

Section 5.03. Application of Moneys Collected by Trustee.

Any moneys collected by the Trustee shall be applied in the following order, at the date or dates fixed by the Trustee for the distribution of such
moneys, upon presentation of the several Debt Securities in respect of which moneys have been collected, and stamping thereon the payment, if only partially paid, and upon surrender thereof if fully paid:

First: To the payment of costs and expenses incurred by, and reasonable fees of, the Trustee, its agents, attorneys and counsel, and of all other amounts
due to the Trustee under Section 6.06;

Second: To the payment of all Senior Indebtedness of the Company if and to the extent required
by Article XV;

Third: To the payment of the amounts then due and unpaid upon Debt Securities, in respect of which or for the benefit of
which money has been collected, ratably, without preference or priority of any kind, according to the amounts due on such Debt Securities; and

Fourth: The balance, if any, to the Company.

Section 5.04. Proceedings by Securityholders.

No holder of any Debt Security shall have any right to institute any suit, action or proceeding for any remedy hereunder, unless such holder previously
shall have given to the Trustee written notice of an Event of Default with respect to the Debt Securities and unless the holders of not less than 25% in aggregate principal amount of the Debt Securities then outstanding shall have given the Trustee
a written request to institute such action, suit or proceeding and shall have offered to the Trustee such reasonable indemnity as it may require against the costs, expenses and liabilities to be incurred thereby, and the Trustee for 60 days after
its receipt of such notice, request and offer of indemnity shall have failed to institute any such action, suit or proceeding; provided, that no holder of Debt Securities shall have any right to prejudice the rights of any other holder of
Debt Securities, obtain priority or preference over any other such holder or enforce any right under this Indenture except in the manner herein provided and for the equal, ratable and common benefit of all holders of Debt Securities.

Notwithstanding any other provisions in this Indenture, however, the right of any holder of any Debt Security to receive payment of the principal of,
premium, if any, and interest on such Debt Security when due, or to institute suit for the enforcement of any such payment, shall not be impaired or affected without the consent of such holder. For the protection and enforcement of the provisions of
this Section, each and every Securityholder and the Trustee shall be entitled to such relief as can be given either at law or in equity.



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Section 5.05. Proceedings by Trustee.

In case of an Event of Default hereunder the Trustee may in its discretion proceed to protect and enforce the rights vested in it by this Indenture by
such appropriate judicial proceedings as the Trustee shall deem most effectual to protect and enforce any of such rights, either by suit in equity or by action at law or by proceeding in bankruptcy or otherwise, whether for the specific enforcement
of any covenant or agreement contained in this Indenture or in aid of the exercise of any power granted in this Indenture, or to enforce any other legal or equitable right vested in the Trustee by this Indenture or by law.

Section 5.06. Remedies Cumulative and Continuing.

Except as otherwise provided in Section 2.06, all powers and remedies given by this Article V to the Trustee or to the Securityholders shall, to the extent permitted by law, be deemed cumulative and not
exclusive of any other powers and remedies available to the Trustee or the holders of the Debt Securities, by judicial proceedings or otherwise, to enforce the performance or observance of the covenants and agreements contained in this Indenture or
otherwise established with respect to the Debt Securities, and no delay or omission of the Trustee or of any holder of any of the Debt Securities to exercise any right or power accruing upon any Event of Default occurring and continuing as aforesaid
shall impair any such right or power, or shall be construed to be a waiver of any such default or an acquiescence therein; and, subject to the provisions of Section 5.04, every power and remedy given by this Article V or by law to the Trustee
or to the Securityholders may be exercised from time to time, and as often as shall be deemed expedient, by the Trustee or by the Securityholders.

Section 5.07. Direction of Proceedings and Waiver of Defaults by Majority of Securityholders.

The holders of a
majority in aggregate principal amount of the Debt Securities affected (voting as one class) at the time outstanding shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred on the Trustee with respect to such Debt Securities; provided, however, that (subject to the provisions of Section 6.01) the Trustee shall have the right to decline to follow any such
direction if the Trustee shall determine that the action so directed would be unjustly prejudicial to the holders not taking part in such direction or if the Trustee being advised by counsel determines that the action or proceeding so directed may
not lawfully be taken or if a Responsible Officer of the Trustee shall determine that the action or proceedings so directed would involve the Trustee in personal liability. Prior to any declaration of acceleration, or ipso facto acceleration, of the
maturity of the Debt Securities, the holders of a majority in aggregate principal amount of the Debt Securities at the time outstanding may on behalf of the holders of all of the Debt Securities waive (or modify any previously granted waiver of) any
past Default or Event of Default and its consequences, except a default (a) in the payment of principal of, premium, if any, or interest on any of the Debt Securities, (b) in respect of covenants or provisions hereof which cannot be
modified or amended without the consent of



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the holder of each Debt Security affected, or (c) in respect of the covenants contained in Section 3.09; provided, however, that if
the Debt Securities are held by the Trust or a trustee of the Trust, such waiver or modification to such waiver shall not be effective until the holders of a majority in liquidation preference of the Trust Securities of the Trust shall have
consented to such waiver or modification to such waiver; provided, further, that if the consent of the holder of each outstanding Debt Security is required, such waiver shall not be effective until each holder of the Trust Securities
of the Trust shall have consented to such waiver. Upon any such waiver, the Default or Event of Default covered thereby shall be deemed to be cured for all purposes of this Indenture and the Company, the Trustee and the holders of the Debt
Securities shall be restored to their former positions and rights hereunder, respectively; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereon. Whenever any Default or Event
of Default hereunder shall have been waived as permitted by this Section 5.07, said Default or Event of Default shall for all purposes of the Debt Securities and this Indenture be deemed to have been cured and to be not continuing.

Section 5.08. Notice of Defaults.

The Trustee shall, within 90 days after a Responsible Officer of the Trustee shall have actual knowledge or received written notice of the occurrence of a default with respect to the Debt Securities, mail to all Securityholders, as the
names and addresses of such holders appear upon the Debt Security Register, notice of all defaults with respect to the Debt Securities known to the Trustee, unless such defaults shall have been cured before the giving of such notice (the term
defaults for the purpose of this Section 5.08 being hereby defined to be any event specified in Section 5.01, not including periods of grace, if any, provided for therein); provided, that, except in the case of default
in the payment of the principal of, premium, if any, or interest on any of the Debt Securities, the Trustee shall be protected in withholding such notice if and so long as a Responsible Officer of the Trustee in good faith determines that the
withholding of such notice is in the interests of the Securityholders.

Section 5.09. Undertaking to Pay Costs.

All parties to this Indenture agree, and each holder of any Debt Security by such holders acceptance thereof shall be deemed to have agreed, that
any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken or omitted by it as Trustee, the filing by any party litigant in such suit
of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys fees and expenses, against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the provisions of this Section 5.09 shall not apply to any suit instituted by the Trustee, to any suit instituted by any Securityholder, or group of Securityholders, holding
in the aggregate more than 10% in principal amount of the Debt Securities outstanding, or to any suit instituted by any Securityholder for the enforcement of the payment of the principal of (or premium, if any) or interest on any Debt Security
against the Company on or after the same shall have become due and payable.



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ARTICLE VI

CONCERNING THE TRUSTEE

Section 6.01. Duties and Responsibilities of Trustee.

With respect to the holders of Debt Securities issued hereunder, the Trustee, prior to the occurrence of an Event of Default with respect to the Debt
Securities and after the curing or waiving of all Events of Default which may have occurred, with respect to the Debt Securities, undertakes to perform such duties and only such duties as are specifically set forth in this Indenture. In case an
Event of Default with respect to the Debt Securities has occurred (which has not been cured or waived) the Trustee shall exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in their
exercise, as a prudent person would exercise or use under the circumstances in the conduct of such persons own affairs.

No provision
of this Indenture shall be construed to relieve the Trustee from liability for its own negligent action, its own negligent failure to act or its own willful misconduct, except that:

(a) prior to the occurrence of an Event of Default with respect to the Debt Securities and after the curing or waiving of all Events of Default which may
have occurred

(1) the duties and obligations of the Trustee with respect to the Debt Securities shall be determined solely
by the express provisions of this Indenture, and the Trustee shall not be liable except for the performance of such duties and obligations with respect to the Debt Securities as are specifically set forth in this Indenture, and no implied covenants
or obligations shall be read into this Indenture against the Trustee; and

(2) in the absence of bad faith on the part of
the Trustee, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture;
but, in the case of any such certificates or opinions which by any provision hereof are specifically required to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform on their
face to the requirements of this Indenture;

(b) the Trustee shall not be liable for any error of judgment made in good faith by a
Responsible Officer or Officers of the Trustee, unless it shall be proved that the Trustee was negligent in ascertaining the pertinent facts;

(c) the Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith, in accordance with the direction of the Securityholders pursuant to Section 5.07, relating to the time, method and place
of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture; and



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(d) the Trustee shall not be charged with knowledge of any Default or Event of Default with respect to
the Debt Securities unless either (1) a Responsible Officer shall have actual knowledge of such Default or Event of Default or (2) written notice of such Default or Event of Default shall have been given to the Trustee by the Company or
any other obligor on the Debt Securities or by any holder of the Debt Securities, except with respect to an Event of Default pursuant to Sections 5.01(a), 5.01(b) or 5.01(c) hereof (other than an Event of Default resulting from the default in the
payment of Additional Interest or premium, if any, if the Trustee does not have actual knowledge or written notice that such payment is due and payable), of which the Trustee shall be deemed to have knowledge.

None of the provisions contained in this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur personal financial
liability in the performance of any of its duties or in the exercise of any of its rights or powers.

Section 6.02. Reliance on
Documents, Opinions, etc.

Except as otherwise provided in Section 6.01:

(a) the Trustee may conclusively rely and shall be fully protected in acting or refraining from acting upon any resolution, certificate, statement,
instrument, opinion, report, notice, request, consent, order, bond, note, debenture or other paper or document believed by it in good faith to be genuine and to have been signed or presented by the proper party or parties;

(b) any request, direction, order or demand of the Company mentioned herein shall be sufficiently evidenced by an Officers Certificate (unless
other evidence in respect thereof be herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a copy thereof certified by the Secretary or an Assistant Secretary of the Company;

(c) the Trustee may consult with counsel of its selection and any advice or Opinion of Counsel shall be full and complete authorization and protection in
respect of any action taken, suffered or omitted by it hereunder in good faith and in accordance with such advice or Opinion of Counsel;

(d) the Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request, order or direction of any of the Securityholders, pursuant to the provisions of this Indenture, unless such
Securityholders shall have offered to the Trustee reasonable security or indemnity against the costs, expenses and liabilities which may be incurred therein or thereby;

(e) the Trustee shall not be liable for any action taken or omitted by it in good faith and believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Indenture; nothing
contained herein shall, however, relieve the Trustee of the obligation, upon the occurrence of an Event of Default with respect to the Debt Securities (that has not been cured or waived) to exercise with respect to the Debt Securities such of the
rights and powers vested in it by this Indenture, and to use the same degree of care and skill in their exercise, as a prudent person would exercise or use under the circumstances in the conduct of such persons own affairs;



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(f) the Trustee shall not be bound to make any investigation into the facts or matters stated in any
resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order, approval, bond, debenture, coupon or other paper or document, unless requested in writing to do so by the holders of not less than a majority in
principal amount of the outstanding Debt Securities affected thereby; provided, however, that if the payment within a reasonable time to the Trustee of the costs, expenses or liabilities likely to be incurred by it in the making of
such investigation is, in the opinion of the Trustee, not reasonably assured to the Trustee by the security afforded to it by the terms of this Indenture, the Trustee may require reasonable indemnity against such expense or liability as a condition
to so proceeding; and

(g) the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or
by or through agents (including any Authenticating Agent) or attorneys, and the Trustee shall not be responsible for any misconduct or negligence on the part of any such agent or attorney appointed by it with due care.

Section 6.03. No Responsibility for Recitals, etc.

The recitals contained herein and in the Debt Securities (except in the certificate of authentication of the Trustee or the Authenticating Agent) shall be taken as the statements of the Company and the Trustee and the
Authenticating Agent assume no responsibility for the correctness of the same. The Trustee and the Authenticating Agent make no representations as to the validity or sufficiency of this Indenture or of the Debt Securities. The Trustee and the
Authenticating Agent shall not be accountable for the use or application by the Company of any Debt Securities or the proceeds of any Debt Securities authenticated and delivered by the Trustee or the Authenticating Agent in conformity with the
provisions of this Indenture.

Section 6.04. Trustee, Authenticating Agent, Paying Agents, Transfer Agents or Registrar May Own
Debt Securities.

The Trustee or any Authenticating Agent or any Paying Agent or any transfer agent or any Debt Security registrar, in
its individual or any other capacity, may become the owner or pledgee of Debt Securities with the same rights it would have if it were not Trustee, Authenticating Agent, Paying Agent, transfer agent or Debt Security registrar.

Section 6.05. Moneys to be Held in Trust.

Subject to the provisions of Section 12.04, all moneys received by the Trustee or any paying agent shall, until used or applied as herein provided, be held in trust for the purpose for which they were received,
but need not be segregated from other funds except to the extent required by law. The Trustee and any Paying Agent shall be under no liability for interest on any money received by it hereunder except as otherwise agreed in writing with the Company.
So long as no Event of Default shall have occurred and be continuing, all interest allowed on any such moneys, if any, shall be paid from time to time to the Company upon the written order of the Company, signed by the Chairman of the Board of
Directors, the President, the Chief Operating Officer, a Vice President, the Treasurer or an Assistant Treasurer of the Company.



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Section 6.06. Compensation and Expenses of Trustee.

The Company covenants and agrees to pay to the Trustee from time to time, and the Trustee shall be entitled to, such compensation as shall be agreed to in
writing between the Company and the Trustee (which shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust), and the Company will pay or reimburse the Trustee upon its written request for all
documented reasonable expenses, disbursements and advances incurred or made by the Trustee in accordance with any of the provisions of this Indenture (including the reasonable compensation and the reasonable expenses and disbursements of its counsel
and of all Persons not regularly in its employ) except any such expense, disbursement or advance that arises from its negligence or bad faith. The Company also covenants to indemnify each of the Trustee (including in its individual capacity) and any
predecessor Trustee (and its officers, agents, directors and employees) for, and to hold it harmless against, any and all loss, damage, claim, liability or expense including taxes (other than taxes based on the income of the Trustee), except to the
extent such loss, damage, claim, liability or expense results from the negligence or bad faith of such indemnitee, arising out of or in connection with the acceptance or administration of this trust, including the costs and expenses of defending
itself against any claim or liability in the premises. The obligations of the Company under this Section 6.06 to compensate and indemnify the Trustee and to pay or reimburse the Trustee for documented expenses, disbursements and advances shall
constitute additional indebtedness hereunder. Such additional indebtedness shall be secured by a lien prior to that of the Debt Securities upon all property and funds held or collected by the Trustee as such, except funds held in trust for the
benefit of the holders of particular Debt Securities.

Without prejudice to any other rights available to the Trustee under applicable law,
when the Trustee incurs expenses or renders services in connection with an Event of Default specified in subsections (e), (f) or (g) of Section 5.01, the expenses (including the reasonable charges and expenses of its counsel) and the
compensation for the services are intended to constitute expenses of administration under any applicable federal or state bankruptcy, insolvency or other similar law.

The provisions of this Section shall survive the resignation or removal of the Trustee and the defeasance or other termination of this Indenture.

Notwithstanding anything in this Indenture or any Debt Security to the contrary, the Trustee shall have no obligation whatsoever to advance funds to pay
any principal of or interest on or other amounts with respect to the Debt Securities or otherwise advance funds to or on behalf of the Company.

Section 6.07. Officers Certificate as Evidence.

Except as otherwise provided in Sections 6.01 and 6.02, whenever
in the administration of the provisions of this Indenture the Trustee shall deem it necessary or desirable that a matter be proved or established prior to taking or omitting any action hereunder, such matter (unless other evidence in respect thereof
be herein specifically prescribed) may, in the absence of negligence or bad faith on the part of the Trustee, be deemed to be conclusively proved and established by an Officers Certificate delivered to the Trustee, and such certificate, in the
absence of negligence or bad faith on the part of the Trustee, shall be full warrant to the Trustee for any action taken or omitted by it under the provisions of this Indenture upon the faith thereof.



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Section 6.08. Eligibility of Trustee.

The Trustee hereunder shall at all times be a U.S. Person that is a banking corporation or national association organized and doing business under the
laws of the United States of America or any state thereof or of the District of Columbia and authorized under such laws to exercise corporate trust powers, having a combined capital and surplus of at least fifty million U.S. dollars ($50,000,000)
and subject to supervision or examination by federal, state, or District of Columbia authority. If such corporation or national association publishes reports of condition at least annually, pursuant to law or to the requirements of the aforesaid
supervising or examining authority, then for the purposes of this Section 6.08 the combined capital and surplus of such corporation or national association shall be deemed to be its combined capital and surplus as set forth in its most recent
records of condition so published.

The Company may not, nor may any Person directly or indirectly controlling, controlled by, or under
common control with the Company, serve as Trustee, notwithstanding that such corporation or national association shall be otherwise eligible and qualified under this Article.

In case at any time the Trustee shall cease to be eligible in accordance with the provisions of this Section 6.08, the Trustee shall resign
immediately in the manner and with the effect specified in Section 6.09.

If the Trustee has or shall acquire any conflicting
interest within the meaning of § 310(b) of the Trust Indenture Act, the Trustee shall either eliminate such interest or resign, to the extent and in the manner provided by, and subject to this Indenture.

Section 6.09. Resignation or Removal of Trustee.

(a) The Trustee, or any trustee or trustees hereafter appointed, may at any time resign by giving written notice of such resignation to the Company and by mailing notice thereof, at the Companys expense, to the
holders of the Debt Securities at their addresses as they shall appear on the Debt Security Register. Upon receiving such notice of resignation, the Company shall promptly appoint a successor trustee or trustees by written instrument, in duplicate,
executed by order of its Board of Directors, one copy of which instrument shall be delivered to the resigning Trustee and one copy to the successor Trustee. If no successor Trustee shall have been so appointed and have accepted appointment within 30
days after the mailing of such notice of resignation to the affected Securityholders, the resigning Trustee may petition any court of competent jurisdiction for the appointment of a successor Trustee, or any Securityholder who has been a bona fide
holder of a Debt Security or Debt Securities for at least six months may, subject to the provisions of Section 5.09, on behalf of himself or herself and all others similarly situated, petition any such court for the appointment of a successor
Trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, appoint a successor Trustee.



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(b) In case at any time any of the following shall occur 

(1) the Trustee shall fail to comply with the provisions of the last paragraph of Section 6.08 after written request therefor by the
Company or by any Securityholder who has been a bona fide holder of a Debt Security or Debt Securities for at least six months,

(2) the Trustee shall cease to be eligible in accordance with the provisions of Section 6.08 and shall fail to resign after written request therefor by the Company or by any such Securityholder, or

(3) the Trustee shall become incapable of acting, or shall be adjudged bankrupt or insolvent, or a receiver of the Trustee or of its
property shall be appointed, or any public officer shall take charge or control of the Trustee or of its property or affairs for the purpose of rehabilitation, conservation or liquidation,

then, in any such case, the Company may remove the Trustee and appoint a successor Trustee by written instrument, in duplicate, executed by order of the Board of
Directors, one copy of which instrument shall be delivered to the Trustee so removed and one copy to the successor Trustee, or, subject to the provisions of Section 5.09, if no successor Trustee shall have been so appointed and have accepted
appointment within 30 days of the occurrence of any of (1),(2) or (3) above, any Securityholder who has been a bona fide holder of a Debt Security or Debt Securities for at least six months may, on behalf of himself or herself and all
others similarly situated, petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, remove the
Trustee and appoint a successor Trustee.

(c) Upon prior written notice to the Company and the Trustee, the holders of a majority in
aggregate principal amount of the Debt Securities at the time outstanding may at any time remove the Trustee and nominate a successor Trustee, which shall be deemed appointed as successor Trustee unless within ten Business Days after such nomination
the Company objects thereto, in which case or in the case of a failure by such holders to nominate a successor Trustee, the Trustee so removed or any Securityholder, upon the terms and conditions and otherwise as in subsection (a) of this
Section 6.09 provided, may petition any court of competent jurisdiction for an appointment of a successor.

(d) Any resignation or
removal of the Trustee and appointment of a successor Trustee pursuant to any of the provisions of this Section 6.09 shall become effective upon acceptance of appointment by the successor Trustee as provided in Section 6.10.

Section 6.10. Acceptance by Successor Trustee.

Any successor Trustee appointed as provided in Section 6.09 shall execute, acknowledge and deliver to the Company and to its predecessor Trustee an instrument accepting such appointment hereunder, and thereupon
the resignation or removal of the retiring Trustee shall become effective and such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, duties and obligations with respect to the Debt
Securities of its predecessor hereunder, with like effect as if originally named as Trustee herein;



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but, nevertheless, on the written request of the Company or of the successor Trustee, the Trustee ceasing to act shall, upon payment of the amounts then due
it pursuant to the provisions of Section 6.06, execute and deliver an instrument transferring to such successor Trustee all the rights and powers of the Trustee so ceasing to act and shall duly assign, transfer and deliver to such successor
Trustee all property and money held by such retiring Trustee hereunder. Upon request of any such successor Trustee, the Company shall execute any and all instruments in writing for more fully and certainly vesting in and confirming to such successor
Trustee all such rights and powers. Any Trustee ceasing to act shall, nevertheless, retain a lien upon all property or funds held or collected by such Trustee to secure any amounts then due it pursuant to the provisions of Section 6.06.

If a successor Trustee is appointed, the Company, the retiring Trustee and the successor Trustee shall execute and deliver an indenture
supplemental hereto which shall contain such provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts and duties of the retiring Trustee with respect to the Debt Securities as to which the predecessor
Trustee is not retiring shall continue to be vested in the predecessor Trustee, and shall add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the Trust hereunder by more
than one Trustee, it being understood that nothing herein or in such supplemental indenture shall constitute such Trustees co-trustees of the same trust and that each such Trustee shall be Trustee of a trust or trusts hereunder separate and apart
from any trust or trusts hereunder administered by any other such Trustee.

No successor Trustee shall accept appointment as provided in
this Section 6.10 unless at the time of such acceptance such successor Trustee shall be eligible under the provisions of Section 6.08.

In no event shall a retiring Trustee be liable for the acts or omissions of any successor Trustee hereunder.

Upon acceptance of
appointment by a successor Trustee as provided in this Section 6.10, the Company shall mail notice of the succession of such Trustee hereunder to the holders of Debt Securities at their addresses as they shall appear on the Debt Security
Register. If the Company fails to mail such notice within ten Business Days after the acceptance of appointment by the successor Trustee, the successor Trustee shall cause such notice to be mailed at the expense of the Company.

Section 6.11. Succession by Merger, etc.

Any Person into which the Trustee may be merged or converted or with which it may be consolidated, or any Person resulting from any merger, conversion or consolidation to which the Trustee shall be a party, or any Person succeeding to all
or substantially all of the corporate trust business of the Trustee, shall be the successor of the Trustee hereunder without the execution or filing of any paper or any further act on the part of any of the parties hereto; provided, that such
Person shall be otherwise eligible and qualified under this Article.



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In case at the time such successor to the Trustee shall succeed to the trusts created by this Indenture
any of the Debt Securities shall have been authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor Trustee, and deliver such Debt Securities so authenticated; and in case at
that time any of the Debt Securities shall not have been authenticated, any successor to the Trustee may authenticate such Debt Securities either in the name of any predecessor hereunder or in the name of the successor Trustee; and in all such cases
such certificates shall have the full force which it is anywhere in the Debt Securities or in this Indenture provided that the certificate of the Trustee shall have; provided, however, that the right to adopt the certificate of
authentication of any predecessor Trustee or authenticate Debt Securities in the name of any predecessor Trustee shall apply only to its successor or successors by merger, conversion or consolidation.

Section 6.12. Authenticating Agents.

There may be one or more Authenticating Agents appointed by the Trustee upon the request of the Company with power to act on its behalf and subject to its direction in the authentication and delivery of Debt Securities issued upon exchange
or registration of transfer thereof as fully to all intents and purposes as though any such Authenticating Agent had been expressly authorized to authenticate and deliver Debt Securities; provided, that the Trustee shall have no liability to
the Company for any acts or omissions of the Authenticating Agent with respect to the authentication and delivery of Debt Securities. Any such Authenticating Agent shall at all times be a banking corporation or national association organized and
doing business under the laws of the United States or of any state or territory thereof or of the District of Columbia authorized under such laws to act as Authenticating Agent, having a combined capital and surplus of at least $50,000,000 and being
subject to supervision or examination by federal, state, territorial or District of Columbia authority. If such banking corporation or national association publishes reports of condition at least annually pursuant to law or the requirements of such
authority, then for the purposes of this Section 6.12 the combined capital and surplus of such corporation shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at any time
an Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect herein specified in this Section.

Any corporation into which any Authenticating Agent may be merged or converted or with which it may be consolidated, or any corporation resulting from
any merger, consolidation or conversion to which any Authenticating Agent shall be a party, or any corporation succeeding to all or substantially all of the corporate trust business of any Authenticating Agent, shall be the successor of such
Authenticating Agent hereunder, if such successor corporation is otherwise eligible under this Section 6.12 without the execution or filing of any paper or any further act on the part of the parties hereto or such Authenticating Agent.

Any Authenticating Agent may at any time resign by giving written notice of resignation to the Trustee and to the Company. The Trustee may
at any time terminate the agency of any Authenticating Agent with respect to the Debt Securities by giving written notice of termination to such Authenticating Agent and to the Company. Upon receiving such a notice of resignation or upon such a
termination, or in case at any time any Authenticating Agent shall cease to be eligible under this Section 6.12, the Trustee may, and upon the request of the



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Company shall, promptly appoint a successor Authenticating Agent eligible under this Section 6.12, shall give written notice of such appointment to the
Company and shall mail notice of such appointment to all holders of Debt Securities as the names and addresses of such holders appear on the Debt Security Register. Any successor Authenticating Agent upon acceptance of its appointment hereunder
shall become vested with all rights, powers, duties and responsibilities with respect to the Debt Securities of its predecessor hereunder, with like effect as if originally named as Authenticating Agent herein.

The Company agrees to pay to any Authenticating Agent from time to time reasonable compensation for its services. Any Authenticating Agent shall have no
responsibility or liability for any action taken by it as such in accordance with the directions of the Trustee.

ARTICLE VII

CONCERNING THE SECURITYHOLDERS

Section 7.01. Action by Securityholders.

Whenever in this Indenture it is provided that the holders of a specified
percentage in aggregate principal amount of the Debt Securities may take any action (including the making of any demand or request, the giving of any notice, consent or waiver or the taking of any other action), the fact that at the time of taking
any such action the holders of such specified percentage have joined therein may be evidenced (a) by any instrument or any number of instruments of similar tenor executed by such Securityholders in person or by agent or proxy appointed in
writing, or (b) by the record of such holders of Debt Securities voting in favor thereof at any meeting of such Securityholders duly called and held in accordance with the provisions of Article VIII, or (c) by a combination of such
instrument or instruments and any such record of such a meeting of such Securityholders or (d) by any other method the Trustee deems satisfactory.

If the Company shall solicit from the Securityholders any request, demand, authorization, direction, notice, consent, waiver or other action or revocation of the same, the Company may, at its option, as evidenced by
an Officers Certificate, fix in advance a record date for such Debt Securities for the determination of Securityholders entitled to give such request, demand, authorization, direction, notice, consent, waiver or other action or revocation of
the same, but the Company shall have no obligation to do so. If such a record date is fixed, such request, demand, authorization, direction, notice, consent, waiver or other action or revocation of the same may be given before or after the record
date, but only the Securityholders of record at the close of business on the record date shall be deemed to be Securityholders for the purposes of determining whether Securityholders of the requisite proportion of outstanding Debt Securities have
authorized or agreed or consented to such request, demand, authorization, direction, notice, consent, waiver or other action or revocation of the same, and for that purpose the outstanding Debt Securities shall be computed as of the record date;
provided, however, that no such authorization, agreement or consent by such Securityholders on the record date shall be deemed effective unless it shall become effective pursuant to the provisions of this Indenture not later than six
months after the record date.



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Section 7.02. Proof of Execution by Securityholders.

Subject to the provisions of Sections 6.01, 6.02 and 8.05, proof of the execution of any instrument by a Securityholder or such Securityholders
agent or proxy shall be sufficient if made in accordance with such reasonable rules and regulations as may be prescribed by the Trustee or in such manner as shall be satisfactory to the Trustee. The ownership of Debt Securities shall be proved by
the Debt Security Register or by a certificate of the Debt Security registrar. The Trustee may require such additional proof of any matter referred to in this Section as it shall deem necessary.

The record of any Securityholders meeting shall be proved in the manner provided in Section 8.06.

Section 7.03. Who Are Deemed Absolute Owners.

Prior to due presentment for registration of transfer of any Debt Security, the Company, the Trustee, any Authenticating Agent, any Paying Agent, any transfer agent and any Debt Security registrar may deem the Person
in whose name such Debt Security shall be registered upon the Debt Security Register to be, and may treat such Person as, the absolute owner of such Debt Security (whether or not such Debt Security shall be overdue) for the purpose of receiving
payment of or on account of the principal of, premium, if any, and interest on such Debt Security and for all other purposes; and neither the Company nor the Trustee nor any Authenticating Agent nor any Paying Agent nor any transfer agent nor any
Debt Security registrar shall be affected by any notice to the contrary. All such payments so made to any holder for the time being or upon such holders order shall be valid, and, to the extent of the sum or sums so paid, effectual to satisfy
and discharge the liability for moneys payable upon any such Debt Security.

Section 7.04. Debt Securities Owned by Company Deemed
Not Outstanding.

In determining whether the holders of the requisite aggregate principal amount of Debt Securities have concurred in
any direction, consent or waiver under this Indenture, Debt Securities which are owned by the Company or any other obligor on the Debt Securities or by any Person directly or indirectly controlling or controlled by or under direct or indirect common
control with the Company (other than the Trust) or any other obligor on the Debt Securities shall be disregarded and deemed not to be outstanding for the purpose of any such determination; provided, that for the purposes of determining
whether the Trustee shall be protected in relying on any such direction, consent or waiver, only Debt Securities which a Responsible Officer of the Trustee actually knows are so owned shall be so disregarded. Debt Securities so owned which have been
pledged in good faith may be regarded as outstanding for the purposes of this Section 7.04 if the pledgee shall establish to the satisfaction of the Trustee the pledgees right to vote such Debt Securities and that the pledgee is not the
Company or any such other obligor or Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company or any such other obligor. In the case of a dispute as to such right, any decision by the
Trustee taken upon the advice of counsel shall be full protection to the Trustee.



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Section 7.05. Revocation of Consents; Future Holders Bound.

At any time prior to (but not after) the evidencing to the Trustee, as provided in Section 7.01, of the taking of any action by the holders of the
percentage in aggregate principal amount of the Debt Securities specified in this Indenture in connection with such action, any holder (in cases where no record date has been set pursuant to Section 7.01) or any holder as of an applicable
record date (in cases where a record date has been set pursuant to Section 7.01) of a Debt Security (or any Debt Security issued in whole or in part in exchange or substitution therefor) the serial number of which is shown by the evidence to be
included in the Debt Securities the holders of which have consented to such action may, by filing written notice with the Trustee at the Principal Office of the Trustee and upon proof of holding as provided in Section 7.02, revoke such action
so far as concerns such Debt Security (or so far as concerns the principal amount represented by any exchanged or substituted Debt Security). Except as aforesaid any such action taken by the holder of any Debt Security shall be conclusive and
binding upon such holder and upon all future holders and owners of such Debt Security, and of any Debt Security issued in exchange or substitution therefor or on registration of transfer thereof, irrespective of whether or not any notation in regard
thereto is made upon such Debt Security or any Debt Security issued in exchange or substitution therefor.

ARTICLE VIII

SECURITYHOLDERS MEETINGS

Section 8.01. Purposes of Meetings.

A meeting of Securityholders may be called at any time and from time to time
pursuant to the provisions of this Article VIII for any of the following purposes:

(a) to give any notice to the Company or to the Trustee,
or to give any directions to the Trustee, or to consent to the waiving of any default hereunder and its consequences, or to take any other action authorized to be taken by Securityholders pursuant to any of the provisions of Article V;

(b) to remove the Trustee and nominate a successor trustee pursuant to the provisions of Article VI;

(c) to consent to the execution of an indenture or indentures supplemental hereto pursuant to the provisions of Section 9.02; or

(d) to take any other action authorized to be taken by or on behalf of the holders of any specified aggregate principal amount of such Debt Securities
under any other provision of this Indenture or under applicable law.

Section 8.02. Call of Meetings by Trustee.

The Trustee may at any time call a meeting of Securityholders to take any action specified in Section 8.01, to be held at such time and at such place
in New York or Wilmington, Delaware, as the Trustee shall determine. Notice of every meeting of the Securityholders, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting, shall be
mailed to holders of Debt Securities affected at their addresses as they shall appear on the Debt Securities Register. Such notice shall be mailed not less than 20 nor more than 180 days prior to the date fixed for the meeting.



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Section 8.03. Call of Meetings by Company or Securityholders.

In case at any time the Company pursuant to a Board Resolution, or the holders of at least 10% in aggregate principal amount of the Debt Securities, as
the case may be, then outstanding, shall have requested the Trustee to call a meeting of Securityholders, by written request setting forth in reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have mailed the
notice of such meeting within 20 days after receipt of such request, then the Company or such Securityholders may determine the time and the place in Rockford, Illinois for such meeting and may call such meeting to take any action authorized in
Section 8.01, by mailing notice thereof as provided in Section 8.02.

Section 8.04. Qualifications for Voting.

To be entitled to vote at any meeting of Securityholders a Person shall be (a) a holder of one or more Debt Securities with respect to
which the meeting is being held or (b) a Person appointed by an instrument in writing as proxy by a holder of one or more such Debt Securities. The only Persons who shall be entitled to be present or to speak at any meeting of Securityholders
shall be the Persons entitled to vote at such meeting and their counsel and any representatives of the Trustee and its counsel and any representatives of the Company and its counsel.

Section 8.05. Regulations.

Notwithstanding any other provisions of this Indenture, the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Securityholders, in regard to proof of the holding of Debt Securities and of the
appointment of proxies, and in regard to the appointment and duties of inspectors of votes, the submission and examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting
as it shall deem appropriate.

The Trustee shall, by an instrument in writing, appoint a temporary chairman of the meeting, unless the
meeting shall have been called by the Company or by Securityholders as provided in Section 8.03, in which case the Company or the Securityholders calling the meeting, as the case may be, shall in like manner appoint a temporary chairman. A
permanent chairman and a permanent secretary of the meeting shall be elected by majority vote at the meeting.

Subject to the provisions of
Section 7.04, at any meeting each holder of Debt Securities with respect to which such meeting is being held or proxy therefor shall be entitled to one vote for each $1,000 principal amount of Debt Securities held or represented by such holder;
provided, however, that no vote shall be cast or counted at any meeting in respect of any Debt Security challenged as not outstanding and ruled by the chairman of the meeting to be not outstanding. The chairman of the meeting shall
have no right to vote other than by virtue of Debt Securities held by such chairman or instruments in writing as aforesaid duly designating such chairman as the Person to vote on behalf of other Securityholders. Any meeting of Securityholders duly
called pursuant to the provisions of Section 8.02 or 8.03 may be adjourned from time to time by a majority of those present, whether or not constituting a quorum, and the meeting may be held as so adjourned without further notice.



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Section 8.06. Voting.

The vote upon any resolution submitted to any meeting of holders of Debt Securities with respect to which such meeting is being held shall be by written
ballots on which shall be subscribed the signatures of such holders or of their representatives by proxy and the serial number or numbers of the Debt Securities held or represented by them. The permanent chairman of the meeting shall appoint two
inspectors of votes who shall count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary of the meeting their verified written reports in triplicate of all votes cast at the meeting. A record in
duplicate of the proceedings of each meeting of Securityholders shall be prepared by the secretary of the meeting and there shall be attached to said record the original reports of the inspectors of votes on any vote by ballot taken thereat and
affidavits by one or more Persons having knowledge of the facts setting forth a copy of the notice of the meeting and showing that said notice was mailed as provided in Section 8.02. The record shall show the serial numbers of the Debt
Securities voting in favor of or against any resolution. The record shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting and one of the duplicates shall be delivered to the Company and the other to
the Trustee to be preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting.

Any record so signed and
verified shall be conclusive evidence of the matters therein stated.

Section 8.07. Quorum; Actions.

The Persons entitled to vote a majority in outstanding principal amount of the Debt Securities shall constitute a quorum for a meeting of Securityholders;
provided, however, that if any action is to be taken at such meeting with respect to a consent, waiver, request, demand, notice, authorization, direction or other action which may be given by the holders of not less than a specified
percentage in outstanding principal amount of the Debt Securities, the Persons holding or representing such specified percentage in outstanding principal amount of the Debt Securities will constitute a quorum. In the absence of a quorum within 30
minutes of the time appointed for any such meeting, the meeting shall, if convened at the request of Securityholders, be dissolved. In any other case the meeting may be adjourned for a period of not less than 10 days as determined by the permanent
chairman of the meeting prior to the adjournment of such meeting. In the absence of a quorum at any such adjourned meeting, such adjourned meeting may be further adjourned for a period of not less than 10 days as determined by the permanent chairman
of the meeting prior to the adjournment of such adjourned meeting. Notice of the reconvening of any adjourned meeting shall be given as provided in Section 8.02, except that such notice need be given only once not less than five days prior to
the date on which the meeting is scheduled to be reconvened. Notice of the reconvening of an adjourned meeting shall state expressly the percentage, as provided above, of the outstanding principal amount of the Debt Securities which shall constitute
a quorum.



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Except as limited by the proviso in the first paragraph of Section 9.02, any resolution presented to
a meeting or adjourned meeting duly reconvened at which a quorum is present as aforesaid may be adopted by the affirmative vote of the holders of not less than a majority in outstanding principal amount of the Debt Securities; provided,
however, that, except as limited by the proviso in the first paragraph of Section 9.02, any resolution with respect to any consent, waiver, request, demand, notice, authorization, direction or other action that this Indenture expressly
provides may be given by the holders of not less than a specified percentage in outstanding principal amount of the Debt Securities may be adopted at a meeting or an adjourned meeting duly reconvened and at which a quorum is present as aforesaid
only by the affirmative vote of the holders of not less than such specified percentage in outstanding principal amount of the Debt Securities.

Any resolution passed or decision taken at any meeting of holders of Debt Securities duly held in accordance with this Section shall be binding on all the Securityholders, whether or not present or represented at the meeting.

ARTICLE IX

SUPPLEMENTAL INDENTURES

Section 9.01. Supplemental Indentures without Consent of Securityholders.

The Company, when authorized by a Board Resolution, and the Trustee may from time to time and at any time enter into an indenture or indentures
supplemental hereto, without the consent of the Securityholders, for one or more of the following purposes:

(a) to evidence the succession
of another corporation to the Company, or successive successions, and the assumption by the successor corporation of the covenants, agreements and obligations of the Company, pursuant to Article XI hereof;

(b) to add to the covenants of the Company such further covenants, restrictions or conditions for the protection of the holders of Debt Securities as the
Board of Directors shall consider to be for the protection of the holders of such Debt Securities, and to make the occurrence, or the occurrence and continuance, of a Default in any of such additional covenants, restrictions or conditions a Default
or an Event of Default permitting the enforcement of all or any of the several remedies provided in this Indenture as herein set forth; provided, however, that in respect of any such additional covenant, restriction or condition such
supplemental indenture may provide for a particular period of grace after Default (which period may be shorter or longer than that allowed in the case of other Defaults) or may provide for an immediate enforcement upon such Default or may limit the
remedies available to the Trustee upon such default;

(c) to cure any ambiguity or to correct or supplement any provision contained herein
or in any supplemental indenture which may be defective or inconsistent with any other provision contained herein or in any supplemental indenture, or to make such other provisions in regard to matters or questions arising under this Indenture;
provided, that any such action shall not adversely affect the interests of the holders of the Debt Securities;



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(d) to add to, delete from, or revise the terms of Debt Securities, including, without limitation, any
terms relating to the issuance, exchange, registration or transfer of Debt Securities, including to provide for transfer procedures and restrictions substantially similar to those applicable to the Capital Securities, as required by
Section 2.05 (for purposes of assuring that no registration of Debt Securities is required under the Securities Act; provided, that any such action shall not adversely affect the interests of the holders of the Debt Securities then
outstanding (it being understood, for purposes of this proviso, that transfer restrictions on Debt Securities substantially similar to those applicable to Capital Securities shall not be deemed to adversely affect the holders of the Debt
Securities);

(e) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Debt
Securities and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, pursuant to the requirements of Section 6.10;

(f) to make any change (other than as elsewhere provided in this paragraph) that does not adversely affect the rights of any
Securityholder in any material respect; or

(g) to provide for the issuance of and establish the form and terms and conditions of the Debt
Securities, to establish the form of any certifications required to be furnished pursuant to the terms of this Indenture or the Debt Securities, or to add to the rights of the holders of Debt Securities.

The Trustee is hereby authorized to join with the Company in the execution of any such supplemental indenture, to make any further appropriate agreements
and stipulations which may be therein contained and to accept the conveyance, transfer and assignment of any property thereunder, but the Trustee shall not be obligated to, but may in its discretion, enter into any such supplemental indenture which
affects the Trustees own rights, duties or immunities under this Indenture or otherwise.

Any supplemental indenture authorized by
the provisions of this Section 9.01 may be executed by the Company and the Trustee without the consent of the holders of any of the Debt Securities at the time outstanding, notwithstanding any of the provisions of Section 9.02.

Section 9.02. Supplemental Indentures with Consent of Securityholders.

With the consent (evidenced as provided in Section 7.01) of the holders of not less than a majority in aggregate principal amount of the Debt
Securities at the time outstanding affected by such supplemental indenture (voting as a class), the Company, when authorized by a Board Resolution, and the Trustee may from time to time and at any time enter into an indenture or indentures
supplemental hereto (which shall conform to the provisions of the Trust Indenture Act, then in effect, applicable to indentures qualified thereunder) for the purpose of adding any provisions to or changing in any manner or eliminating any of the
provisions of this Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Debt Securities; provided, however, that no such supplemental indenture shall without such consent of the
holders of each Debt Security then outstanding and affected thereby (i) extend the fixed maturity of any Debt Security, or reduce the principal amount thereof or any premium



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thereon, or reduce the rate or extend the time of payment of interest thereon, or reduce any amount payable on redemption thereof or make the principal
thereof or any interest or premium thereon payable in any coin or currency other than that provided in the Debt Securities, or impair or affect the right of any Securityholder to institute suit for payment thereof or impair the right of repayment,
if any, at the option of the holder, or (ii) reduce the aforesaid percentage of Debt Securities the holders of which are required to consent to any such supplemental indenture; and provided, further, that if the Debt Securities
are held by the Trust or a trustee of such trust, such supplemental indenture shall not be effective until the holders of a majority in liquidation preference of the Trust Securities shall have consented to such supplemental indenture;
provided, further, that if the consent of the Securityholder of each outstanding Debt Security is required, such supplemental indenture shall not be effective until each holder of the Trust Securities shall have consented to such
supplemental indenture.

Upon the request of the Company accompanied by a Board Resolution authorizing the execution of any such
supplemental indenture, and upon the filing with the Trustee of evidence of the consent of Securityholders as aforesaid, the Trustee shall join with the Company in the execution of such supplemental indenture unless such supplemental indenture
affects the Trustees own rights, duties or immunities under this Indenture or otherwise, in which case the Trustee may in its discretion, but shall not be obligated to, enter into such supplemental indenture.

Promptly after the execution by the Company and the Trustee of any supplemental indenture pursuant to the provisions of this Section, the Trustee shall
transmit by mail, first class postage prepaid, a notice, prepared by the Company, setting forth in general terms the substance of such supplemental indenture, to the Securityholders as their names and addresses appear upon the Debt Security
Register. Any failure of the Trustee to mail such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such supplemental indenture.

It shall not be necessary for the consent of the Securityholders under this Section 9.02 to approve the particular form of any proposed supplemental
indenture, but it shall be sufficient if such consent shall approve the substance thereof.

Section 9.03. Effect of Supplemental
Indentures.

Upon the execution of any supplemental indenture pursuant to the provisions of this Article IX, this Indenture shall be and
be deemed to be modified and amended in accordance therewith and the respective rights, limitations of rights, obligations, duties and immunities under this Indenture of the Trustee, the Company and the holders of Debt Securities shall thereafter be
determined, exercised and enforced hereunder subject in all respects to such modifications and amendments and all the terms and conditions of any such supplemental indenture shall be and be deemed to be part of the terms and conditions of this
Indenture for any and all purposes.

Section 9.04. Notation on Debt Securities.

Debt Securities authenticated and delivered after the execution of any supplemental indenture pursuant to the provisions of this Article IX may bear a
notation as to



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any matter provided for in such supplemental indenture. If the Company or the Trustee shall so determine, new Debt Securities so modified as to conform, in
the opinion of the Board of Directors of the Company, to any modification of this Indenture contained in any such supplemental indenture may be prepared and executed by the Company, authenticated by the Trustee or the Authenticating Agent and
delivered in exchange for the Debt Securities then outstanding.

Section 9.05. Evidence of Compliance of Supplemental Indenture to
be Furnished to Trustee.

The Trustee, subject to the provisions of Sections 6.01 and 6.02, shall, in addition to the documents
required by Section 14.06, receive an Officers Certificate and an Opinion of Counsel as conclusive evidence that any supplemental indenture executed pursuant hereto complies with the requirements of this Article IX. The Trustee shall
receive an Opinion of Counsel as conclusive evidence that any supplemental indenture executed pursuant to this Article IX is authorized or permitted by, and conforms to, the terms of this Article IX and that it is proper for the Trustee under the
provisions of this Article IX to join in the execution thereof.

ARTICLE X

REDEMPTION OF SECURITIES

Section 10.01. Optional Redemption.

At any time the Company shall have the right, subject to the receipt by the Company of prior approval from the Federal Reserve, if then required under
applicable capital guidelines or policies of the Federal Reserve, to redeem the Debt Securities, in whole or in part, on any March 6, June 6, September 6 and December 6 on or after June 6, 2012 (the
Redemption Date), at the Redemption Price.

Section 10.02. Special Event Redemption.

If a Special Event shall occur and be continuing, the Company shall have the right, subject to the receipt by the Company of prior approval from the
Federal Reserve if then required under applicable capital guidelines or policies of the Federal Reserve, to redeem the Debt Securities, in whole but not in part, at any time within 90 days following the occurrence of such Special Event (the
Special Redemption Date), at the Special Redemption Price.

Section 10.03. Notice of Redemption; Selection of Debt
Securities.

In case the Company shall desire to exercise the right to redeem all, or, as the case may be, any part of the Debt
Securities, it shall fix a date for redemption and shall mail a notice of such redemption at least 30 and not more than 60 days prior to the date fixed for redemption to the holders of Debt Securities so to be redeemed as a whole or in part at their
last addresses as the same appear on the Debt Security Register. Such mailing shall be by first class mail. The notice if mailed in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the holder receives
such notice. In any case, failure to give such notice by mail or any defect in the notice to the holder of any Debt Security designated for redemption as a whole or in part shall not affect the validity of the proceedings for the redemption of any
other Debt Security.



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Each such notice of redemption shall specify the CUSIP number, if any, of the Debt Securities to be
redeemed, the date fixed for redemption, the redemption price at which Debt Securities are to be redeemed, the place or places of payment, that payment will be made upon presentation and surrender of such Debt Securities, that interest accrued to
the date fixed for redemption will be paid as specified in said notice, and that on and after said date interest thereon or on the portions thereof to be redeemed will cease to accrue. If less than all the Debt Securities are to be redeemed the
notice of redemption shall specify the numbers of the Debt Securities to be redeemed. In case the Debt Securities are to be redeemed in part only, the notice of redemption shall state the portion of the principal amount thereof to be redeemed and
shall state that on and after the date fixed for redemption, upon surrender of such Debt Security, a new Debt Security or Debt Securities in principal amount equal to the unredeemed portion thereof will be issued.

Prior to 10:00 a.m. New York City time on the Redemption Date or the Special Redemption Date specified in the notice of redemption given as provided in
this Section, the Company will deposit with the Trustee or with one or more Paying Agents an amount of money sufficient to redeem on the redemption date all the Debt Securities so called for redemption at the appropriate redemption price, together
with accrued interest to the date fixed for redemption.

The Company will give the Trustee notice not less than 45 nor more than 60 days
prior to the redemption date as to the redemption price at which the Debt Securities are to be redeemed and the aggregate principal amount of Debt Securities to be redeemed and the Trustee shall select, in such manner as in its sole discretion it
shall deem appropriate and fair, the Debt Securities or portions thereof (in integral multiples of $1,000) to be redeemed.

Section 10.04. Payment of Debt Securities Called for Redemption.

If notice of redemption has been given as provided in
Section 10.03, the Debt Securities or portions of Debt Securities with respect to which such notice has been given shall become due and payable on the Redemption Date or the Special Redemption Date (as the case may be) and at the place or
places stated in such notice at the applicable redemption price, together with interest accrued to the date fixed for redemption, and on and after said Redemption Date or the Special Redemption Date (unless the Company shall default in the payment
of such Debt Securities at the redemption price, together with interest accrued to said date) interest on the Debt Securities or portions of Debt Securities so called for redemption shall cease to accrue. On presentation and surrender of such Debt
Securities at a place of payment specified in said notice, such Debt Securities or the specified portions thereof shall be paid and redeemed by the Company at the applicable redemption price, together with interest accrued thereon to the Redemption
Date or the Special Redemption Date (as the case may be).

Upon presentation of any Debt Security redeemed in part only, the Company shall
execute and the Trustee shall authenticate and make available for delivery to the holder thereof, at the expense of the Company, a new Debt Security or Debt Securities of authorized denominations in principal amount equal to the unredeemed portion
of the Debt Security so presented.



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ARTICLE XI

CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE

Section 11.01. Company May Consolidate, etc., on
Certain Terms.

Nothing contained in this Indenture or in the Debt Securities shall prevent any consolidation or merger of the Company
with or into any other corporation or corporations (whether or not affiliated with the Company) or successive consolidations or mergers in which the Company or its successor or successors shall be a party or parties, or shall prevent any sale,
conveyance, transfer or other disposition of the property or capital stock of the Company or its successor or successors as an entirety, or substantially as an entirety, to any other corporation (whether or not affiliated with the Company, or its
successor or successors) authorized to acquire and operate the same; provided, however, that the Company hereby covenants and agrees that, upon any such consolidation, merger (where the Company is not the surviving corporation), sale,
conveyance, transfer or other disposition, the due and punctual payment of all payments due on all of the Debt Securities in accordance with their terms, according to their tenor, and the due and punctual performance and observance of all the
covenants and conditions of this Indenture to be kept or performed by the Company, shall be expressly assumed by supplemental indenture reasonably satisfactory in form to the Trustee executed and delivered to the Trustee by the entity formed by such
consolidation, or into which the Company shall have been merged, or by the entity which shall have acquired such property or capital stock.

Section 11.02. Successor Entity to be Substituted.

In case of any such consolidation, merger, sale, conveyance,
transfer or other disposition contemplated in Section 11.01 and upon the assumption by the successor entity, by supplemental indenture, executed and delivered to the Trustee and reasonably satisfactory in form to the Trustee, of the due and
punctual payment of the principal of and premium, if any, and interest on all of the Debt Securities and the due and punctual performance and observance of all of the covenants and conditions of this Indenture to be performed or observed by the
Company, such successor entity shall succeed to and be substituted for the Company, with the same effect as if it had been named herein as the Company, and thereupon the predecessor entity shall be relieved of any further liability or obligation
hereunder or upon the Debt Securities. Such successor entity thereupon may cause to be signed, and may issue either in its own name or in the name of the Company, any or all of the Debt Securities issuable hereunder which theretofore shall not have
been signed by the Company and delivered to the Trustee or the Authenticating Agent; and, upon the order of such successor entity instead of the Company and subject to all the terms, conditions and limitations in this Indenture prescribed, the
Trustee or the Authenticating Agent shall authenticate and deliver any Debt Securities which previously shall have been signed and delivered by the officers of the Company, to the Trustee or the Authenticating Agent for authentication, and any Debt
Securities which such successor entity thereafter shall cause to be signed and delivered to the Trustee or the Authenticating Agent for that purpose. All the Debt Securities so issued shall in all respects have the same legal rank and



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benefit under this Indenture as the Debt Securities theretofore or thereafter issued in accordance with the terms of this Indenture as though all of such
Debt Securities had been issued at the date of the execution hereof.

Section 11.03. Opinion of Counsel to be Given to Trustee.

The Trustee, subject to the provisions of Sections 6.01 and 6.02, shall receive, in addition to the Opinion of Counsel required by
Section 9.05, an Opinion of Counsel as conclusive evidence that any consolidation, merger, sale, conveyance, transfer or other disposition, and any assumption, permitted or required by the terms of this Article XI complies with the provisions
of this Article XI.

ARTICLE XII

SATISFACTION AND DISCHARGE OF INDENTURE

Section 12.01. Discharge of Indenture.

When (a) the Company shall deliver to the Trustee for cancellation all Debt Securities theretofore authenticated (other than any Debt Securities
which shall have been destroyed, lost or stolen and which shall have been replaced or paid as provided in Section 2.06) and not theretofore canceled, or (b) all the Debt Securities not theretofore canceled or delivered to the Trustee for
cancellation shall have become due and payable, or are by their terms to become due and payable within one year or are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption,
and the Company shall deposit with the Trustee, in trust, funds, which shall be immediately due and payable, sufficient to pay at maturity or upon redemption all of the Debt Securities (other than any Debt Securities which shall have been destroyed,
lost or stolen and which shall have been replaced or paid as provided in Section 2.06) not theretofore canceled or delivered to the Trustee for cancellation, including principal and premium, if any, and interest due or to become due to such
date of maturity or redemption date, as the case may be, but excluding, however, the amount of any moneys for the payment of principal of, and premium, if any, or interest on the Debt Securities (1) theretofore repaid to the Company in
accordance with the provisions of Section 12.04, or (2) paid to any state or to the District of Columbia pursuant to its unclaimed property or similar laws, and if in the case of either clause (a) or clause (b) the Company shall
also pay or cause to be paid all other sums payable hereunder by the Company, then this Indenture shall cease to be of further effect except for the provisions of Sections 2.05, 2.06, 3.01, 3.02, 3.04, 6.06, 6.09 and 12.04 hereof, which shall
survive until such Debt Securities shall mature or are redeemed, as the case may be, and are paid. Thereafter, Sections 6.06, 6.09 and 12.04 shall survive, and the Trustee, on demand of the Company accompanied by an Officers Certificate and an
Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture have been complied with, and at the cost and expense of the Company, shall execute proper instruments
acknowledging satisfaction of and discharging this Indenture, the Company, however, hereby agreeing to reimburse the Trustee for any costs or expenses thereafter reasonably and properly incurred by the Trustee in connection with this Indenture or
the Debt Securities.



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Section 12.02. Deposited Moneys to be Held in Trust by Trustee.

Subject to the provisions of Section 12.04, all moneys deposited with the Trustee pursuant to Section 12.01 shall be held in trust and applied
by it to the payment, either directly or through any Paying Agent (including the Company if acting as its own Paying Agent), to the holders of the particular Debt Securities for the payment of which such moneys have been deposited with the Trustee,
of all sums due and to become due thereon for principal, and premium, if any, and interest.

Section 12.03. Paying Agent to Repay
Moneys Held.

Upon the satisfaction and discharge of this Indenture, all moneys then held by any Paying Agent of the Debt Securities
(other than the Trustee) shall, upon demand of the Company, be repaid to the Company or paid to the Trustee, and thereupon such Paying Agent shall be released from all further liability with respect to such moneys.

Section 12.04. Return of Unclaimed Moneys.

Any moneys deposited with or paid to the Trustee or any Paying Agent for payment of the principal of, and premium, if any, or interest on Debt Securities and not applied but remaining unclaimed by the holders of Debt
Securities for two years after the date upon which the principal of, and premium, if any, or interest on such Debt Securities, as the case may be, shall have become due and payable, shall be repaid to the Company by the Trustee or such Paying Agent
on written demand; and the holder of any of the Debt Securities shall thereafter look only to the Company for any payment which such holder may be entitled to collect and all liability of the Trustee or such Paying Agent with respect to such moneys
shall thereupon cease.

ARTICLE XIII

IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS

Section 13.01. Indenture and Debt Securities Solely
Corporate Obligations.

No recourse for the payment of the principal of or premium, if any, or interest on any Debt Security, or for any
claim based thereon or otherwise in respect thereof, and no recourse under or upon any obligation, covenant or agreement of the Company in this Indenture or in any supplemental indenture, or in any such Debt Security, or because of the creation of
any indebtedness represented thereby, shall be had against any incorporator, stockholder, officer, director, employee or agent, as such, past, present or future, of the Company or of any predecessor or successor corporation of the Company, either
directly or through the Company or any successor corporation of the Company, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise; it being expressly understood that all such
liability is hereby expressly waived and released as a condition of, and as a consideration for, the execution of this Indenture and the issue of the Debt Securities.



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ARTICLE XIV

MISCELLANEOUS PROVISIONS

Section 14.01. Successors.

All the covenants, stipulations, promises and agreements of the Company contained in this Indenture shall bind its successors and assigns whether so
expressed or not.

Section 14.02. Official Acts by Successor Entity.

Any act or proceeding by any provision of this Indenture authorized or required to be done or performed by any board, committee or officer of the Company
shall and may be done and performed with like force and effect by the like board, committee, officer or other authorized Person of any entity that shall at the time be the lawful successor of the Company.

Section 14.03. Surrender of Company Powers.

The Company by instrument in writing executed by authority of at least 2/3 (two-thirds) of its Board of Directors and delivered to the Trustee may surrender any of the powers reserved to the Company and thereupon such
power so surrendered shall terminate both as to the Company and as to any permitted successor.

Section 14.04. Addresses for
Notices, etc.

Any notice or demand which by any provision of this Indenture is required or permitted to be given or served by the
Trustee or by the Securityholders on the Company may be given or served in writing by being deposited postage prepaid by registered or certified mail in a post office letter box addressed (until another address is filed by the Company with the
Trustee for such purpose) to the Company at:

501 Seventh Street, P.O. Box 1537

Rockford, Illinois 61110

Attention: Douglas
Howe

Telecopy: 866-889-9808

Telephone: 815-961-4965

Any notice, direction, request or demand by any Securityholder or the Company to or upon the Trustee
shall be deemed to have been sufficiently given or made, for all purposes, if given or made in writing at the office of Wilmington Trust Company at:

Rodney Square North

1100 North Market Street

Wilmington, Delaware 19890-0001

Attention: Corporate Capital Markets

Section 14.05. Governing Law.

This Indenture and each Debt Security shall be deemed to be a contract made under the law of the State of New York, and for all purposes shall be governed by and construed in accordance with the law of said State, without regard to conflict
of laws principles thereof.



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Section 14.06. Evidence of Compliance with Conditions Precedent.

Upon any application or demand by the Company to the Trustee to take any action under any of the provisions of this Indenture, the Company shall furnish
to the Trustee an Officers Certificate stating that in the opinion of the signers all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with and an Opinion of Counsel stating that,
in the opinion of such counsel, all such conditions precedent have been complied with (except that no such Opinion of Counsel is required to be furnished to the Trustee in connection with the authentication and issuance of Debt Securities issued on
the date of this Indenture).

Each certificate or opinion provided for in this Indenture and delivered to the Trustee with respect to
compliance with a condition or covenant provided for in this Indenture (except certificates delivered pursuant to Section 3.05) shall include (a) a statement that the person making such certificate or opinion has read such covenant or
condition; (b) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based; (c) a statement that, in the opinion of such person,
he or she has made such examination or investigation as is necessary to enable him or her to express an informed opinion as to whether or not such covenant or condition has been complied with; and (d) a statement as to whether or not, in the
opinion of such person, such condition or covenant has been complied with.

Section 14.07. Business Day Convention.

Notwithstanding anything to the contrary contained herein, if any Interest Payment Date, other than the Maturity Date, any Redemption Date or the
Special Redemption Date, falls on a day that is not a Business Day, then any interest payable will be paid on, and such Interest Payment Date will be moved to, the next succeeding Business Day. During the Fixed Period, no additional interest will
accrue for each day that such payment is delayed as a result thereof. Thereafter, additional interest will accrue for each day that such payment is delayed as a result thereof. If the Maturity Date, any Redemption Date or the Special Redemption Date
falls on a day that is not a Business Day, then the principal, premium, if any, and/or interest payable on such date will be paid on the next succeeding Business Day, and no additional interest will accrue in respect of such payment made on such
next succeeding Business Day.

Section 14.08. Table of Contents, Headings, etc.

The table of contents and the titles and headings of the articles and sections of this Indenture have been inserted for convenience of reference only, are
not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof.

Section 14.09.
Execution in Counterparts.

This Indenture may be executed in any number of counterparts, each of which shall be an original, but
such counterparts shall together constitute but one and the same instrument.



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Section 14.10. Separability.

In case any one or more of the provisions contained in this Indenture or in the Debt Securities shall for any reason be held to be invalid, illegal or
unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect any other provisions of this Indenture or of such Debt Securities, but this Indenture and such Debt Securities shall be construed as if such invalid or
illegal or unenforceable provision had never been contained herein or therein.

Section 14.11. Assignment.

Subject to Article XI, the Company will have the right at all times to assign any of its rights or obligations under this Indenture to a direct or
indirect wholly owned Subsidiary of the Company, provided, that, in the event of any such assignment, the Company will remain liable for all such obligations. Subject to the foregoing, this Indenture is binding upon and inures to the benefit
of the parties hereto and their respective successors and assigns. This Indenture may not otherwise be assigned by the parties thereto.

Section 14.12. Acknowledgment of Rights.

The Company acknowledges that, with respect to any Debt Securities held by
the Trust or the Institutional Trustee of the Trust, if the Institutional Trustee of the Trust fails to enforce its rights under this Indenture as the holder of Debt Securities held as the assets of the Trust after the holders of a majority in
Liquidation Amount of the Capital Securities of the Trust have so directed in writing such Institutional Trustee, a holder of record of such Capital Securities may to the fullest extent permitted by law institute legal proceedings directly against
the Company to enforce such Institutional Trustees rights under this Indenture without first instituting any legal proceedings against such Institutional Trustee or any other Person. Notwithstanding the foregoing, if an Event of Default has
occurred and is continuing and such event is attributable to the failure of the Company to pay interest (or premium, if any) or principal on the Debt Securities on the date such interest (or premium, if any) or principal is otherwise due and payable
(or in the case of redemption, on the redemption date), the Company acknowledges that a holder of record of Capital Securities of the Trust may directly institute a proceeding against the Company for enforcement of payment to such holder directly of
the principal of (or premium, if any) or interest on the Debt Securities having an aggregate principal amount equal to the aggregate Liquidation Amount of the Capital Securities of such holder on or after the respective due date specified in the
Debt Securities.

ARTICLE XV

SUBORDINATION OF DEBT SECURITIES

Section 15.01. Agreement to Subordinate.

The Company covenants and agrees, and each holder of Debt Securities issued hereunder and under any supplemental indenture (the Additional
Provisions) by such Securityholders acceptance thereof likewise covenants and agrees, that all Debt Securities shall be issued subject to the provisions of this Article XV; and each holder of a Debt Security, whether upon original issue
or upon transfer or assignment thereof, accepts and agrees to be bound by such provisions.



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The payment by the Company of the payments due on all Debt Securities issued hereunder and under any
Additional Provisions shall, to the extent and in the manner hereinafter set forth, be subordinated and junior in right of payment to the prior payment in full of all Senior Indebtedness of the Company, whether outstanding at the date of this
Indenture or thereafter incurred.

No provision of this Article XV shall prevent the occurrence of any default or Event of Default
hereunder.

Section 15.02. Default on Senior Indebtedness.

In the event and during the continuation of any default by the Company in the payment of principal, premium, interest or any other payment due on any
Senior Indebtedness of the Company following any applicable grace period, or in the event that the maturity of any Senior Indebtedness of the Company has been accelerated because of a default, and such acceleration has not been rescinded or canceled
and such Senior Indebtedness has not been paid in full then, in either case, no payment shall be made by the Company with respect to the payments due on the Debt Securities.

In the event that, notwithstanding the foregoing, any payment shall be received by the Trustee when such payment is prohibited by the preceding paragraph
of this Section 15.02, such payment shall, subject to Section 15.06, be held in trust for the benefit of, and shall be paid over or delivered to, the holders of Senior Indebtedness or their respective representatives, or to the trustee or
trustees under any indenture pursuant to which any of such Senior Indebtedness may have been issued, as their respective interests may appear, but only to the extent that the holders of the Senior Indebtedness (or their representative or
representatives or a trustee) notify the Trustee in writing within 90 days of such payment of the amounts then due and owing on the Senior Indebtedness and only the amounts specified in such notice to the Trustee shall be paid to the holders of
Senior Indebtedness.

Section 15.03. Liquidation; Dissolution; Bankruptcy.

Upon any payment by the Company or distribution of assets of the Company of any kind or character, whether in cash, property or securities, to creditors
upon any dissolution or winding-up or liquidation or reorganization of the Company, whether voluntary or involuntary or in bankruptcy, insolvency, receivership or other proceedings, all amounts due upon all Senior Indebtedness of the Company shall
first be paid in full, or payment thereof provided for in money in accordance with its terms, before any payment is made by the Company on the Debt Securities; and upon any such dissolution or winding-up or liquidation or reorganization, any payment
by the Company, or distribution of assets of the Company of any kind or character, whether in cash, property or securities, to which the Securityholders or the Trustee would be entitled to receive from the Company, except for the provisions of this
Article XV, shall be paid by the Company, or by any receiver, trustee in bankruptcy, liquidating trustee, agent or other Person making such payment or distribution, or by the Securityholders or by the Trustee under



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this Indenture if received by them or it, directly to the holders of Senior Indebtedness of the Company (pro rata to such holders on the basis of the
respective amounts of Senior Indebtedness held by such holders, as calculated by the Company) or their representative or representatives, or to the trustee or trustees under any indenture pursuant to which any instruments evidencing such Senior
Indebtedness may have been issued, as their respective interests may appear, to the extent necessary to pay such Senior Indebtedness in full, in money or moneys worth, after giving effect to any concurrent payment or distribution to or for the
holders of such Senior Indebtedness, before any payment or distribution is made to the Securityholders or to the Trustee.

In the event
that, notwithstanding the foregoing, any payment or distribution of assets of the Company of any kind or character, whether in cash, property or securities, prohibited by the foregoing, shall be received by the Trustee or any Securityholder before
all Senior Indebtedness of the Company is paid in full, or provision is made for such payment in money in accordance with its terms, such payment or distribution shall be held in trust for the benefit of and shall be paid over or delivered to the
holders of such Senior Indebtedness or their representative or representatives, or to the trustee or trustees under any indenture pursuant to which any instruments evidencing such Senior Indebtedness may have been issued, as their respective
interests may appear, as calculated by the Company, for application to the payment of all Senior Indebtedness of the Company remaining unpaid to the extent necessary to pay such Senior Indebtedness in full in money in accordance with its terms,
after giving effect to any concurrent payment or distribution to or for the benefit of the holders of such Senior Indebtedness.

For
purposes of this Article XV, the words cash, property or securities shall not be deemed to include shares of stock of the Company as reorganized or readjusted, or securities of the Company or any other corporation provided for by a
plan of reorganization or readjustment, the payment of which is subordinated at least to the extent provided in this Article XV with respect to the Debt Securities to the payment of all Senior Indebtedness of the Company, that may at the time be
outstanding, provided, that (a) such Senior Indebtedness is assumed by the new corporation, if any, resulting from any such reorganization or readjustment, and (b) the rights of the holders of such Senior Indebtedness are not,
without the consent of such holders, altered by such reorganization or readjustment. The consolidation of the Company with, or the merger of the Company into, another corporation or the liquidation or dissolution of the Company following the
conveyance or transfer of its property as an entirety, or substantially as an entirety, to another corporation upon the terms and conditions provided for in Article XI of this Indenture shall not be deemed a dissolution, winding-up, liquidation
or reorganization for the purposes of this Section 15.03 if such other corporation shall, as a part of such consolidation, merger, conveyance or transfer, comply with the conditions stated in Article XI of this Indenture. Nothing in
Section 15.02 or in this Section 15.03 shall apply to claims of, or payments to, the Trustee under or pursuant to Section 6.06 of this Indenture.

Section 15.04. Subrogation.

Subject to the payment in full of all Senior Indebtedness of the
Company, the Securityholders shall be subrogated to the rights of the holders of such Senior Indebtedness to receive payments or distributions of cash, property or securities of the Company applicable to such Senior Indebtedness until all payments
due on the Debt Securities shall be paid in full; and,



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for the purposes of such subrogation, no payments or distributions to the holders of such Senior Indebtedness of any cash, property or securities to which
the Securityholders or the Trustee would be entitled except for the provisions of this Article XV, and no payment over pursuant to the provisions of this Article XV to or for the benefit of the holders of such Senior Indebtedness by Securityholders
or the Trustee, shall, as between the Company, its creditors other than holders of Senior Indebtedness of the Company, and the holders of the Debt Securities be deemed to be a payment or distribution by the Company to or on account of such Senior
Indebtedness. It is understood that the provisions of this Article XV are and are intended solely for the purposes of defining the relative rights of the holders of the Debt Securities, on the one hand, and the holders of such Senior
Indebtedness, on the other hand.

Nothing contained in this Article XV or elsewhere in this Indenture, any Additional Provisions or in the
Debt Securities is intended to or shall impair, as between the Company, its creditors other than the holders of Senior Indebtedness of the Company, and the holders of the Debt Securities, the obligation of the Company, which is absolute and
unconditional, to pay to the holders of the Debt Securities all payments on the Debt Securities as and when the same shall become due and payable in accordance with their terms, or is intended to or shall affect the relative rights of the holders of
the Debt Securities and creditors of the Company, other than the holders of Senior Indebtedness of the Company, nor shall anything herein or therein prevent the Trustee or the holder of any Debt Security from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture, subject to the rights, if any, under this Article XV of the holders of such Senior Indebtedness in respect of cash, property or securities of the Company received upon the exercise of
any such remedy.

Upon any payment or distribution of assets of the Company referred to in this Article XV, the Trustee, subject to the
provisions of Article VI of this Indenture, and the Securityholders shall be entitled to conclusively rely upon any order or decree made by any court of competent jurisdiction in which such dissolution, winding-up, liquidation or reorganization
proceedings are pending, or a certificate of the receiver, trustee in bankruptcy, liquidation trustee, agent or other Person making such payment or distribution, delivered to the Trustee or to the Securityholders, for the purposes of ascertaining
the Persons entitled to participate in such distribution, the holders of Senior Indebtedness and other indebtedness of the Company, the amount thereof or payable thereon, the amount or amounts paid or distributed thereon and all other facts
pertinent thereto or to this Article XV.

Section 15.05. Trustee to Effectuate Subordination.

Each Securityholder by such Securityholders acceptance thereof authorizes and directs the Trustee on such Securityholders behalf to take such
action as may be necessary or appropriate to effectuate the subordination provided in this Article XV and appoints the Trustee such Securityholders attorney-in-fact for any and all such purposes.

Section 15.06. Notice by the Company.

The Company shall give prompt written notice to a Responsible Officer of the Trustee at the Principal Office of the Trustee of any fact known to the Company that would prohibit the making of any payment of moneys to or by the Trustee in
respect of the Debt



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Securities pursuant to the provisions of this Article XV. Notwithstanding the provisions of this Article XV or any other provision of this Indenture or any
Additional Provisions, the Trustee shall not be charged with knowledge of the existence of any facts that would prohibit the making of any payment of moneys to or by the Trustee in respect of the Debt Securities pursuant to the provisions of this
Article XV, unless and until a Responsible Officer of the Trustee at the Principal Office of the Trustee shall have received written notice thereof from the Company or a holder or holders of Senior Indebtedness or from any trustee therefor; and
before the receipt of any such written notice, the Trustee, subject to the provisions of Article VI of this Indenture, shall be entitled in all respects to assume that no such facts exist; provided, however, that if the Trustee shall
not have received the notice provided for in this Section 15.06 at least two Business Days prior to the date upon which by the terms hereof any money may become payable for any purpose (including, without limitation, the payment of the
principal of (or premium, if any) or interest on any Debt Security), then, anything herein contained to the contrary notwithstanding, the Trustee shall have full power and authority to receive such money and to apply the same to the purposes for
which they were received, and shall not be affected by any notice to the contrary that may be received by it within two Business Days prior to such date.

The Trustee, subject to the provisions of Article VI of this Indenture, shall be entitled to conclusively rely on the delivery to it of a written notice by a Person representing himself or herself to be a holder of
Senior Indebtedness of the Company (or a trustee or representative on behalf of such holder) to establish that such notice has been given by a holder of such Senior Indebtedness or a trustee or representative on behalf of any such holder or holders.
In the event that the Trustee determines in good faith that further evidence is required with respect to the right of any Person as a holder of such Senior Indebtedness to participate in any payment or distribution pursuant to this Article XV, the
Trustee may request such Person to furnish evidence to the reasonable satisfaction of the Trustee as to the amount of such Senior Indebtedness held by such Person, the extent to which such Person is entitled to participate in such payment or
distribution and any other facts pertinent to the rights of such Person under this Article XV, and, if such evidence is not furnished, the Trustee may defer any payment to such Person pending judicial determination as to the right of such Person to
receive such payment.

Section 15.07. Rights of the Trustee; Holders of Senior Indebtedness.

The Trustee in its individual capacity shall be entitled to all the rights set forth in this Article XV in respect of any Senior Indebtedness at any time
held by it, to the same extent as any other holder of Senior Indebtedness, and nothing in this Indenture or any Additional Provisions shall deprive the Trustee of any of its rights as such holder.

With respect to the holders of Senior Indebtedness of the Company, the Trustee undertakes to perform or to observe only such of its covenants and
obligations as are specifically set forth in this Article XV, and no implied covenants or obligations with respect to the holders of such Senior Indebtedness shall be read into this Indenture or any Additional Provisions against the Trustee. The
Trustee shall not owe or be deemed to owe any fiduciary duty to the holders of such Senior Indebtedness and, subject to the provisions of Article VI of this Indenture, the Trustee shall not be liable to any holder of such Senior Indebtedness if it
shall pay over or deliver to Securityholders, the Company or any other Person money or assets to which any holder of such Senior Indebtedness shall be entitled by virtue of this Article XV or otherwise.



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Nothing in this Article XV shall apply to claims of, or payments to, the Trustee under or pursuant to
Section 6.06.

Section 15.08. Subordination May Not Be Impaired.

No right of any present or future holder of any Senior Indebtedness of the Company to enforce subordination as herein provided shall at any time in any
way be prejudiced or impaired by any act or failure to act on the part of the Company, or by any act or failure to act, in good faith, by any such holder, or by any noncompliance by the Company, with the terms, provisions and covenants of this
Indenture, regardless of any knowledge thereof that any such holder may have or otherwise be charged with.

Without in any way limiting the
generality of the foregoing paragraph, the holders of Senior Indebtedness of the Company may, at any time and from time to time, without the consent of or notice to the Trustee or the Securityholders, without incurring responsibility to the
Securityholders and without impairing or releasing the subordination provided in this Article XV or the obligations hereunder of the holders of the Debt Securities to the holders of such Senior Indebtedness, do any one or more of the following:
(a) change the manner, place or terms of payment or extend the time of payment of, or renew or alter, such Senior Indebtedness, or otherwise amend or supplement in any manner such Senior Indebtedness or any instrument evidencing the same or any
agreement under which such Senior Indebtedness is outstanding; (b) sell, exchange, release or otherwise deal with any property pledged, mortgaged or otherwise securing such Senior Indebtedness; (c) release any Person liable in any manner
for the collection of such Senior Indebtedness; and (d) exercise or refrain from exercising any rights against the Company, and any other Person.

Wilmington Trust Company, in its capacity as Trustee, hereby accepts the trusts in this Indenture declared and provided, upon the terms and conditions herein above set forth.



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



AMCORE FINANCIAL, INC.ByName:

Donald H. WilsonTitle:

Executive Vice President and CFOWILMINGTON TRUST COMPANY, as TrusteeByName:Title:




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EXHIBIT A

FORM OF FIXED/FLOATING RATE JUNIOR SUBORDINATED DEBT SECURITY DUE 2037

[FORM OF FACE OF SECURITY]

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE SECURITIES ACT), OR ANY STATE
SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION
OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY ONLY (A) TO THE
COMPANY, (B) PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (RULE 144A), TO A PERSON THE HOLDER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE
ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (C) PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT TO AN ACCREDITED
INVESTOR WITHIN THE MEANING OF SUBPARAGRAPH (a) (1), (2), (3) OR (7) OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF AN ACCREDITED INVESTOR, FOR
INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (D) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT,
SUBJECT TO THE COMPANYS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSES (C) OR (D) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO IT IN ACCORDANCE WITH THE
INDENTURE, A COPY OF WHICH MAY BE OBTAINED FROM THE COMPANY. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES THAT IT WILL COMPLY WITH THE FOREGOING RESTRICTIONS.

THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES, REPRESENTS AND WARRANTS THAT IT WILL NOT ENGAGE IN HEDGING TRANSACTIONS INVOLVING THIS
SECURITY UNLESS SUCH TRANSACTIONS ARE IN COMPLIANCE WITH THE SECURITIES ACT.

THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF ALSO
AGREES, REPRESENTS AND WARRANTS THAT IT IS NOT AN EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT



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SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (ERISA), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE CODE), (EACH A PLAN), OR AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF ANY PLANS INVESTMENT IN THE ENTITY AND NO PERSON INVESTING PLAN ASSETS OF ANY
PLAN MAY ACQUIRE OR HOLD THIS SECURITY OR ANY INTEREST THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE FOR THE EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR PROHIBITED TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1, 84-14,
THE NON-FIDUCIARY SERVICE PROVIDER EXEMPTION UNDER SECTION 408(B)(17) OF ERISA OR ANOTHER APPLICABLE EXEMPTION.

IN CONNECTION WITH ANY
TRANSFER, THE HOLDER OF THIS SECURITY WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS MAY BE REQUIRED BY THE INDENTURE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS.

THIS SECURITY WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN BLOCKS HAVING A PRINCIPAL AMOUNT OF NOT LESS THAN $100,000 AND MULTIPLES OF $1,000 IN EXCESS
THEREOF. ANY ATTEMPTED TRANSFER OF THIS SECURITY IN A BLOCK HAVING A PRINCIPAL AMOUNT OF LESS THAN $100,000 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT WHATSOEVER. ANY SUCH PURPORTED TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF THIS
SECURITY FOR ANY PURPOSE, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS ON THIS SECURITY, AND SUCH PURPORTED TRANSFEREE SHALL BE DEEMED TO HAVE NO INTEREST WHATSOEVER IN THIS SECURITY.

THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY THE UNITED STATES OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL DEPOSIT
INSURANCE CORPORATION. THIS OBLIGATION IS SUBORDINATED TO THE CLAIMS OF DEPOSITORS AND THE CLAIMS OF GENERAL AND SECURED CREDITORS OF THE COMPANY, IS INELIGIBLE AS COLLATERAL FOR A LOAN BY THE COMPANY OR ANY OF ITS SUBSIDIARIES AND IS NOT SECURED.



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Fixed/Floating Rate Junior Subordinated Debt Security due 2037

of

AMCORE FINANCIAL, INC.

AMCORE Financial, Inc., a bank holding company incorporated in Nevada (the Company), for value received promises to pay to Wilmington
Trust Company, not in its individual capacity but solely as Institutional Trustee for AMCORE Capital Trust II, a Delaware statutory trust (the Holder), or registered assigns, the principal sum of FIFTY-ONE MILLION FIVE HUNDRED
FORTY-SEVEN THOUSAND Dollars ($51,547,000) on June 6, 2037 and to pay interest on said principal sum from March 27, 2007, or from the most recent interest payment date (each such date, an Interest Payment Date) to which
interest has been paid or duly provided for, quarterly (subject to deferral as set forth herein) in arrears on March 6, June 6, September 6 and December 6 of each year commencing June 6, 2007, at a fixed per annum
rate of interest equal to 6.45% through the end of the Fixed Period (as defined in the Indenture) and a variable per annum rate of interest equal to LIBOR (as defined in the Indenture), as determined on the LIBOR Determination Date (as defined in
the Indenture) plus 1.53% for each Interest Period thereafter (collectively, the Interest Rate) until the principal hereof shall have become due and payable, and on any overdue principal and (without duplication and to the extent that
payment of such interest is enforceable under applicable law) on any overdue installment of interest at an annual rate equal to the Interest Rate in effect for each such Extension Period compounded quarterly. Notwithstanding anything to the contrary
contained herein, if any Interest Payment Date, other than the Maturity Date, any Redemption Date or the Special Redemption Date, falls on a day that is not a Business Day, then any interest payable will be paid on, and such Interest Payment Date
will be moved to, the next succeeding Business Day. During the Fixed Period, no additional interest will accrue for each day that such payment is delayed as a result thereof. Thereafter, additional interest will accrue for each day that such payment
is delayed as a result thereof. If the Maturity Date, any Redemption Date or the Special Redemption Date falls on a day that is not a Business Day, then the principal, premium, if any, and/or interest payable on such date will be paid on the next
succeeding Business Day, and no additional interest will accrue in respect of such payment made on such next succeeding Business Day. The interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date will,
as provided in the Indenture, be paid to the Person in whose name this Debt Security (or one or more Predecessor Securities, as defined in said Indenture) is registered at the close of business on the regular record date for such interest
installment, except that interest and any Deferred Interest payable on the Maturity Date shall be paid to the Person to whom principal is paid. Any such interest installment not punctually paid or duly provided for shall forthwith cease to be
payable to the registered holders on such regular record date and may be paid to the Person in whose name this Debt Security (or one or more Predecessor Debt Securities) is registered at the close of business on a special record date to be fixed by
the Trustee for the payment of such defaulted interest, notice whereof shall be given to the registered holders of the Debt Securities not less than 10 days prior to such special record date, all as more fully provided in the Indenture. The
principal of and interest on this Debt Security shall be payable at the office or agency of the Trustee (or other paying agent appointed by the Company) maintained for that purpose in any coin or currency of the United States of America that at the
time of payment is legal tender for payment of public and private debts; provided, however, that



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payment of interest may be made at the option of the Company by check mailed to the registered holder at such address as shall appear in the Debt Security
Register or by wire transfer to an account appropriately designated by the holder hereof. Notwithstanding the foregoing, so long as the holder of this Debt Security is the Institutional Trustee, the payment of the principal of and interest on this
Debt Security will be made in immediately available funds at such place and to such account as may be designated by the Trustee.

So long
as no Event of Default pursuant to Sections 5.01(b), (e) or (f) of the Indenture has occurred and is continuing, the Company shall have the right, from time to time and without causing an Event of Default, to defer payments of interest on
the Debt Securities by extending the interest payment period on the Debt Securities at any time and from time to time during the term of the Debt Securities, for up to 20 consecutive quarterly periods (each such extended interest payment period, an
Extension Period), during which Extension Period no interest shall be due and payable (except any Additional Interest that may be due and payable). During any Extension Period, interest will continue to accrue on the Debt Securities, and
interest on such accrued interest (such accrued interest and interest thereon referred to herein as Deferred Interest) will accrue, at the Interest Rate, compounded quarterly from the date such Deferred Interest would have been payable
were it not for the Extension Period, both to the extent permitted by law. No Extension Period may end on a date other than an Interest Payment Date. At the end of any such Extension Period the Company shall pay all Deferred Interest then accrued
and unpaid on the Debt Securities; provided, however, that no Extension Period may extend beyond the Maturity Date, Redemption Date or Special Redemption Date and provided, further, however,during any such
Extension Period, the Company may not (A) declare or pay any dividends or distributions on, or redeem, purchase, acquire, or make a liquidation payment with respect to, any of the Companys capital stock, (B) make any payment on or
repay, repurchase or redeem any debt securities of the Company that rank pari passu in all respects with or junior in interest to the Debt Securities or (C) make any payment under any guarantees of the Company that rank pari passuin all respects with or junior in interest to the Capital Securities Guarantee (other than (a) repurchases, redemptions or other acquisitions of shares of capital stock of the Company (I) in connection with any employment contract,
benefit plan or other similar arrangement with or for the benefit of one or more employees, officers, directors or consultants, (II) in connection with a dividend reinvestment or stockholder stock purchase plan or (III) in connection with the
issuance of capital stock of the Company (or securities convertible into or exercisable for such capital stock) as consideration in an acquisition transaction entered into prior to the occurrence of an event set forth in clause (i), (ii) or
(iii) of Section 3.08 of the Indenture, (b) as a result of any exchange or conversion of any class or series of the Companys capital stock (or any capital stock of a subsidiary of the Company) for any class or series of the
Companys capital stock or of any class or series of the Companys indebtedness for any class or series of the Companys capital stock, (c) the purchase of fractional interests in shares of the Companys capital stock
pursuant to the conversion or exchange provisions of such capital stock or the security being converted or exchanged, (d) any declaration of a dividend in connection with any stockholders rights plan, or the issuance of rights, stock or
other property under any stockholders rights plan, or the redemption or repurchase of rights pursuant thereto or (e) any dividend in the form of stock, warrants, options or other rights where the dividend stock or the stock issuable upon
exercise of such warrants, options or other rights is the same stock as that on which the dividend is being paid or ranks pari passuwith or junior in interest to such stock) and any cash payments in lieu of fractional shares issued in
connection therewith. Prior to the



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termination of any Extension Period, the Company may further extend such period, provided, that such period together with all such previous and
further consecutive extensions thereof shall not exceed 20 consecutive quarterly periods, or extend beyond the Maturity Date. Upon the termination of any Extension Period and upon the payment of all Deferred Interest, the Company may commence a new
Extension Period, subject to the foregoing requirements. No interest or Deferred Interest shall be due and payable during an Extension Period, except at the end thereof, but interest shall accrue upon each installment of interest that would
otherwise have been due and payable during such Extension Period until such installment is paid. The Company must give the Trustee notice of its election to begin such Extension Period at least one Business Day prior to the date such interest is
payable, but in any event not later than the related regular record date.

The indebtedness evidenced by this Debt Security is, to the
extent provided in the Indenture, subordinate and junior in right of payment to the prior payment in full of all Senior Indebtedness, and this Debt Security is issued subject to the provisions of the Indenture with respect thereto. Each holder of
this Debt Security, by accepting the same, (a) agrees to and shall be bound by such provisions, (b) authorizes and directs the Trustee on such holders behalf to take such action as may be necessary or appropriate to acknowledge or
effectuate the subordination so provided and (c) appoints the Trustee such holders attorney-in-fact for any and all such purposes. Each holder hereof, by such holders acceptance hereof, hereby waives all notice of the acceptance of
the subordination provisions contained herein and in the Indenture by each holder of Senior Indebtedness, whether now outstanding or hereafter incurred, and waives reliance by each such holder upon said provisions.

The Company waives demand, presentment for payment, notice of nonpayment, notice of protest, and all other notices.

This Debt Security shall not be entitled to any benefit under the Indenture hereinafter referred to and shall not be valid or become obligatory for any
purpose until the certificate of authentication hereon shall have been signed by or on behalf of the Trustee.

The provisions of this Debt
Security are continued on the reverse side hereof and such continued provisions shall for all purposes have the same effect as though fully set forth at this place.

This Debt Security may contain more than one counterpart of the signature page and this Debt Security may be executed and authenticated by the affixing of the signature of a proper officer of the Company, and the
signature of the Trustee providing authentication, to any of such counterpart signature pages. All of such counterpart signature pages shall be read as though one, and they shall have the same force and effect as though the Company had executed, and
the Trustee had authenticated, a single signature page.



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IN WITNESS WHEREOF, the Company has duly executed this certificate.



AMCORE FINANCIAL, INC.By:Name:Title:


Dated:
,

CERTIFICATE OF AUTHENTICATION

This certificate represents Debt Securities referred to in the within-mentioned Indenture.



WILMINGTON TRUST COMPANY, not in itsindividual capacity but solely as the TrusteeBy:Authorized Officer


Dated:
,



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[FORM OF REVERSE OF SECURITY]

This Debt Security is one of a duly authorized series of Debt Securities of the Company, all issued or to be issued pursuant to an Indenture (the
Indenture), dated as of March 27, 2007, duly executed and delivered between the Company and Wilmington Trust Company, as Trustee (the Trustee), to which Indenture and all indentures supplemental thereto reference is
hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company and the holders of the Debt Securities (referred to herein as the Debt Securities) of which
this Debt Security is a part. The summary of the terms of this Debt Security contained herein does not purport to be complete and is qualified by reference to the Indenture.

Upon the occurrence and continuation of a Tax Event, an Investment Company Event or a Capital Treatment Event, this Debt Security may become due and
payable, in whole but not in part, at any time, within 90 days following the occurrence of such Tax Event, Investment Company Event or Capital Treatment Event (the Special Redemption Date), as the case may be, at the Special Redemption
Price. The Company shall also have the right to redeem this Debt Security at the option of the Company, in whole or in part, on any March 6, June 6, September 6 and December 6 on or after June 6, 2012 (a
Redemption Date), at the Redemption Price.

Any redemption pursuant to the preceding paragraph will be made, subject to the
receipt by the Company of prior approval from the Board of Governors of the Federal Reserve System (the Federal Reserve) if then required under applicable capital guidelines or policies of the Federal Reserve, upon not less than 30
days nor more than 60 days notice. If the Debt Securities are only partially redeemed by the Company, the Debt Securities will be redeemed pro rata or by lot or by any other method utilized by the Trustee.

Redemption Price means 100% of the principal amount of the Debt Securities being redeemed plus accrued and unpaid interest on such Debt
Securities to the Redemption Date or, in the case of a redemption due to the occurrence of a Special Event, to the Special Redemption Date if such Special Redemption Date is on or after June 6, 2012.

Special Redemption Price means, with respect to the redemption of any Debt Security following a Special Event, an amount in cash equal to the
percentage of the principal amount of the Debt Securities that is specified below for the Special Redemption Date plus unpaid interest accrued thereon to the Special Redemption Date:



|                                                    |  |                               
|--------------------------------------------------- |  | ------------------------------
|Special Event Redemption During Period Beginning On |  | Percentage of Principal Amount
|March 27, 2007                                      |  | 104.40                        
|June 6, 2008                                        |  | 103.52                        
|June 6, 2009                                        |  | 102.64                        
|June 6, 2010                                        |  | 101.76                        
|June 6, 2011                                        |  | 100.88                        
|June 6, 2012                                        |  | 100.00                        



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In the event of redemption of this Debt Security in part only, a new Debt Security or Debt Securities for
the unredeemed portion hereof will be issued in the name of the holder hereof upon the cancellation hereof.

In case an Event of Default,
as defined in the Indenture, shall have occurred and be continuing, the principal of all of the Debt Securities may be declared due and payable, and upon such declaration of acceleration shall become due and payable, in the manner, with the effect
and subject to the conditions provided in the Indenture.

The Indenture contains provisions permitting the Company and the Trustee, with
the consent of the holders of not less than a majority in aggregate principal amount of the Debt Securities at the time outstanding affected thereby, as specified in the Indenture, to execute supplemental indentures for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of the Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Debt Securities; provided, however, that no
such supplemental indenture shall, among other things, without the consent of the holders of each Debt Security then outstanding and affected thereby (i) extend the fixed maturity of the Debt Securities, or reduce the principal amount thereof
or any redemption premium thereon, or reduce the rate or extend the time of payment of interest thereon, or make payments due on the Debt Securities payable in any coin or currency other than that provided in the Debt Securities, or impair or affect
the right of any holder of Debt Securities to institute suit for the payment thereof, or (ii) reduce the aforesaid percentage of Debt Securities, the holders of which are required to consent to any such supplemental indenture. The Indenture
also contains provisions permitting the holders of a majority in aggregate principal amount of the Debt Securities at the time outstanding, on behalf of all of the holders of the Debt Securities, to waive any past default in the performance of any
of the covenants contained in the Indenture, or established pursuant to the Indenture, and its consequences, except a default in payments due on any of the Debt Securities. Any such consent or waiver by the registered holder of this Debt Security
(unless revoked as provided in the Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Debt Security and of any Debt Security issued in exchange herefor or in place hereof (whether by
registration of transfer or otherwise), irrespective of whether or not any notation of such consent or waiver is made upon this Debt Security.

No reference herein to the Indenture and no provision of this Debt Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay all payments due on this Debt Security at the
time and place and at the rate and in the money herein prescribed.

As provided in the Indenture and subject to certain limitations herein
and therein set forth, this Debt Security is transferable by the registered holder hereof on the Debt Security Register of the Company, upon surrender of this Debt Security for registration of transfer at the office or agency of the Trustee in
Wilmington, Delaware accompanied by a written instrument or instruments of transfer in form satisfactory to the Company or the Trustee duly executed by the registered holder hereof or such holders attorney duly authorized in writing, and
thereupon one or more new Debt Securities of authorized denominations and for the same aggregate principal



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amount will be issued to the designated transferee or transferees. No service charge will be made for any such registration of transfer, but the Company may
require payment of a sum sufficient to cover any tax or other governmental charge payable in relation thereto.

Prior to due presentment
for registration of transfer of this Debt Security, the Company, the Trustee, any Authenticating Agent, any Paying Agent, any transfer agent and the Debt Security registrar may deem and treat the registered holder hereof as the absolute owner hereof
(whether or not this Debt Security shall be overdue and notwithstanding any notice of ownership or writing hereon) for the purpose of receiving payment of or on account of the principal hereof, premium, if any, and interest due hereon and for all
other purposes, and neither the Company nor the Trustee nor any Authenticating Agent nor any Paying Agent nor any transfer agent nor any Debt Security registrar shall be affected by any notice to the contrary.

No recourse shall be had for the payment of the principal of or premium, if any, or the interest on this Debt Security, or for any claim based hereon, or
otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such, of the Company or of any predecessor or successor corporation, whether by virtue
of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of the consideration for the issuance hereof, expressly waived and released.

The Debt Securities are issuable only in registered certificated form without coupons. As provided in the Indenture and subject to certain
limitations herein and therein set forth, Debt Securities are exchangeable for a like aggregate principal amount of Debt Securities of a different authorized denomination, as requested by the holder surrendering the same.

All terms used in this Debt Security that are defined in the Indenture shall have the meanings assigned to them in the Indenture.

THE LAW OF THE STATE OF NEW YORK SHALL GOVERN THE INDENTURE AND THE DEBT SECURITIES, WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES THEREOF.



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EXHIBIT B

FORM OF CERTIFICATE

OF OFFICER

OF

AMCORE Financial, Inc.

Pursuant to Section 3.05 of the Indenture between AMCORE Financial, Inc., as issuer (the Company), and Wilmington Trust Company, as trustee, dated as of March 27, 2007 (as amended or supplemented
from time to time, the Indenture), the undersigned certifies that he/she is a principal executive officer, principal financial officer, principal accounting officer, comptroller, treasurer or authorized officer of the Company and in the
course of the performance by the undersigned of his/her duties as an officer of the Company, the undersigned would normally have knowledge of any default by the Company in the performance of any covenants contained in the Indenture, and the
undersigned hereby further certifies that he/she has no knowledge of any such default for the year 20 [,except as follows: specify each such default and the nature thereof].

Capitalized terms used herein, and not otherwise defined herein, have the respective meanings ascribed thereto in the Indenture.

IN WITNESS WHEREOF, the undersigned has executed this Certificate as of
, 20.



Name:Title:




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