OLD SECOND BANCORP, INC. (a Delaware corporation) [ ] Shares of Common Stock (Par Value $1.00 Per Share) UNDERWRITING AGREEMENT

EX-1.1 2 a2218826zex-1_1.htm EX-1.1

Exhibit 1.1

OLD SECOND BANCORP, INC.

(a Delaware corporation)

[ ] Shares of Common Stock

(Par Value $1.00 Per Share)

UNDERWRITING AGREEMENT

[ ], 2014

KEEFE, BRUYETTE & WOODS, INC.

as Representative of the several Underwriters

787 Seventh Avenue

4th Floor

New York, New York 10019

Ladies and Gentlemen:

Old Second Bancorp, Inc., a Delaware corporation (the “Company”), and Old Second National Bank, a national banking association (the “Bank”), confirm their respective agreements with Keefe, Bruyette & Woods, Inc. (“Keefe Bruyette”) and each of the other Underwriters named in Schedule A hereto (collectively, the “Underwriters”, which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom Keefe Bruyette is acting as representative (in such capacity, the “Representative”), with respect to (i) the sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of the respective numbers of shares of Common Stock, par value $1.00 per share, of the Company (“Common Stock”) set forth in Schedule A hereto and (ii) the grant by the Company to the Underwriters, acting severally and not jointly, of the option described in Section 2(b) hereof to purchase all or any part of [ ] additional shares of Common Stock to cover over-allotments, if any. The aforesaid [ ] shares of Common Stock (the “Initial Securities”) to be purchased by the Underwriters and all or any part of the [ ] shares of Common Stock subject to the option described in Section 2(b) hereof (the “Option Securities”) are hereinafter called, collectively, the “Securities”.

The Company understands that the Underwriters propose to make a public offering of the Securities as soon as the Representative deems advisable after this Agreement has been executed and delivered.

The Company and the Underwriters agree that up to [ ] shares of the Securities to be purchased by the Underwriters (the “Reserved Securities”) shall be reserved for sale by the Underwriters to certain eligible employees and persons having business relationships with the Company (the “Invitees”), as part of the distribution of the Securities by the Underwriters, subject to the terms of this Agreement, the applicable rules, regulations and interpretations of the Financial Industry Regulatory Authority, Inc. (“FINRA”) and all other applicable laws, rules and regulations.

To the extent that such Reserved Securities are not orally confirmed for purchase by the Invitees by the end of the first business day after the date of this Agreement, such Reserved Securities may be offered to the public as part of the public offering contemplated hereby.

The Company has filed with the Securities and Exchange Commission (the “Commission”) a registration statement on Form S-1 (No. 333-193424), including the related preliminary prospectus or prospectus covering the registration of the Securities under the Securities Act of 1933, as amended (the “1933 Act”). Such registration statement has been declared effective by the Commission and the Company has filed such post-effective amendments thereto as may be required prior to the execution of this Agreement and each such post-effective amendment is effective under the 1933 Act. Promptly after execution and delivery of this Agreement, the Company will prepare and file a prospectus in accordance with the provisions of Rule 430A (“Rule 430A”) of the rules and regulations of the Commission under the 1933 Act (the “1933 Act Regulations”) and paragraph (b) of Rule 424 (“Rule 424(b)”) of the 1933 Act Regulations. The information included in such prospectus that was omitted from such registration statement at the time it became effective but that is deemed to be part of such registration statement at the time it became effective pursuant to paragraph (b) of Rule 430A is referred to as “Rule 430 Information.” Each prospectus used before such registration statement became effective and any prospectus that omitted the Rule 430 Information that was used after such effectiveness and prior to the execution and delivery of this Agreement is herein called a “preliminary prospectus.” Such registration statement, including the amendments thereto, the exhibits and any schedules thereto, if any, and the documents incorporated by reference therein pursuant to Item 11A and Item 12 of Form S-1 under the 1933 Act, at the time it became effective and including the Rule 430 Information is herein called the “Registration Statement.” Any registration statement filed pursuant to Rule 462(b) of the 1933 Act Regulations is herein referred to as the “Rule 462(b) Registration Statement,” and after such filing the term “Registration Statement” shall include the Rule 462(b) Registration Statement. The final prospectus, in the form first furnished to the Underwriters for use in connection with the offering of the Securities, is hereinafter called the “Prospectus.” For purposes of this Agreement, all references to the Registration Statement, any preliminary prospectus, the Prospectus or any amendment or supplement to any of the foregoing shall be deemed to include the copy filed with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval system (“EDGAR”).

All references in this Agreement to financial statements and schedules and other information which is “contained,” “included” or “stated” in the Registration Statement, any preliminary prospectus or the Prospectus (or other references of like import) shall be deemed to mean and include all such financial statements and schedules and other information which is incorporated by reference in the Registration Statement, any preliminary prospectus or the Prospectus, as the case may be; and all references in this Agreement to the terms “amend,” “amendment” or “supplement” with respect to the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to mean and include the filing of any document under the Securities Exchange Act of 1934, as amended (the “1934 Act”) which is incorporated by reference in the Registration Statement, any preliminary prospectus or the Prospectus, as the case may be.

SECTION 1. Representations and Warranties and Agreements.

(a) Representations and Warranties by the Company. The Company represents and warrants to each Underwriter as of the date hereof, as of the Closing Time referred to in Section 2(c) hereof, and as of each Date of Delivery (if any) referred to in Section 2(b) hereof, and agrees with each Underwriter, as follows:

(i) Compliance with Registration Requirements. (A) At the time of filing the Registration Statement, any 462(b) Registration Statement and any post-effective amendments thereto, and (B) at the date hereof, the Company was not an “ineligible issuer” as defined in Rule 405 of the 1933 Act Regulations (“Rule 405”). Each of the Registration Statement and any Rule 462(b) Registration Statement has become effective under the 1933 Act, and no stop order suspending the effectiveness of the Registration Statement and any post-effective amendment thereto or any Rule 462(b) Registration Statement has been issued and any post-effective amendment thereto under the 1933 Act and no proceedings for that purpose have been instituted or are pending or, to the knowledge of the Company, are contemplated by the Commission, and any request on the part of the Commission for additional information has been complied with.

At the respective times the Registration Statement, any Rule 462(b) Registration Statement and any post-effective amendments thereto became effective and at the Closing Time (and, if any Option Securities are purchased, at the Date of Delivery), the Registration Statement, the Rule 462(b) Registration Statement and any amendments and supplements thereto complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations and did not and will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading, and the Prospectus, any preliminary prospectus and any supplement thereto or prospectus wrapper prepared in connection therewith, at their respective times of issuance and at the Closing Time, complied and will comply in all material respects with any applicable laws or regulations of foreign jurisdictions in which the Prospectus and such preliminary prospectus, as amended or supplemented, if applicable, are distributed in connection with the offer and sale of Reserved Securities. Neither the Prospectus nor any amendments or supplements thereto, at the time the Prospectus or any such amendment or supplement was issued and at the Closing Time (and, if any Option Securities are purchased, at the Date of Delivery), included or will include an untrue statement of a material fact or omitted or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

Each preliminary prospectus and the prospectus filed as part of the Registration Statement as originally filed or as part of any amendment thereto, or filed pursuant to Rule 424 under the 1933 Act, complied when so filed in all material respects with the 1933 Act and the 1933 Act Regulations, and each preliminary prospectus and the Prospectus delivered to the Underwriters for use in connection with this offering was identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T.

As of the Applicable Time, neither (x) the Issuer-Represented General Free Writing Prospectus(es) (as defined below) issued at or prior to the Applicable Time (as defined below), the Statutory Prospectus (as defined below), and the pricing information set forth in Schedule B, all considered together (collectively, the “General Disclosure Package”), nor (y) any individual Issuer-

Represented Limited Use Free Writing Prospectus, when considered together with the General Disclosure Package, included any untrue statement of a material fact or omitted to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

As used in this subsection and elsewhere in this Agreement:

“Applicable Time” means [·]:00 [a/p]m (Eastern time) on the date of this Agreement or such other time as agreed by the Company and Keefe Bruyette.

“Statutory Prospectus” as of any time means the prospectus relating to the Securities that is included in the Registration Statement immediately prior to that time, including any document incorporated by reference therein and any preliminary or other prospectus deemed to be a part thereof. For purposes of this definition, information contained in a form of prospectus that is deemed retroactively to be a part of the Registration Statement pursuant to Rule 430A shall be considered to be included in the Statutory Prospectus as of the actual time that form of prospectus is filed with the Commission pursuant to Rule 424(b).

“Issuer-Represented Free Writing Prospectus” means any “issuer free writing prospectus,” as defined in Rule 433 of the 1933 Act Regulations (“Rule 433”), relating to the Securities.

“Issuer-Represented General Free Writing Prospectus” means any Issuer-Represented Free Writing Prospectus that is intended for general distribution to prospective investors, as evidenced by its being specified in Schedule B hereto.

“Issuer-Represented Limited Use Free Writing Prospectus” means any Issuer-Represented Free Writing Prospectus that is not an Issuer-Represented General Free Writing Prospectus.

Each Issuer-Represented Free Writing Prospectus, as of its issue date and at all subsequent times through the completion of the public offer and sale of the Securities or until any earlier date that the issuer notified or notifies Keefe Bruyette as described in the next sentence, did not, does not and will not include any information that conflicted, conflicts or will conflict with the information contained in the Registration Statement or the Prospectus, including any document incorporated by reference therein and any preliminary or other prospectus deemed to be a part thereof that has not been superseded or modified, including any document incorporated by reference therein that has not been superseded or modified.

The representations and warranties in this subsection shall not apply to statements in or omissions from the Registration Statement, any preliminary prospectus, the Prospectus or any Issuer-Represented Free Writing Prospectus made in reliance upon and in conformity with written information furnished to the Company by any Underwriter through Keefe Bruyette expressly for use therein, which the parties acknowledge and agree consists only of the concession and reallowance figures appearing in the Prospectus in the section entitled “Underwriting” and the information

contained under the captions “Underwriting - Stabilization” and “Underwriting - Passive Market Making” (the “Underwriter Information”).

(ii) Incorporated Documents. The documents incorporated or deemed to be incorporated by reference in the Registration Statement and the Prospectus, at the time they were or hereafter are filed with the Commission, complied and will comply in all material respects with the requirements of the 1934 Act and the rules and regulations of the Commission thereunder (the “1934 Act Regulations”), and, when read together with the other information in the Prospectus, at the time the Registration Statement became effective, at the time the Prospectus was issued and at the Closing Time (and, if any Option Securities are purchased, at the Date of Delivery), did not and will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading.

(iii) Independent Accountants. Plante & Moran, PLLC, the accounting firm that certified the financial statements and supporting schedules of the Company included in the Registration Statement and the Prospectus, is an independent registered public accounting firm as required by the 1933 Act and the 1933 Act Regulations. With respect to the Company, Plante & Moran, PLLC is not and has not been in violation of the auditor independence requirements of the Sarbanes-Oxley Act of 2002, as amended (“Sarbanes-Oxley Act”), and the related rules and regulations of the Commission during any time period for which Plante & Moran, PLLC, has served as the Company’s independent registered public accounting firm.

(iv) Financial Statements. The financial statements included in the Registration Statement, the General Disclosure Package and the Prospectus, together with the related schedules and notes, present fairly the financial position of the Company and its consolidated subsidiaries at the dates indicated and the statement of operations, stockholders’ equity and cash flows of the Company and its consolidated subsidiaries for the periods specified; said financial statements have been prepared in conformity with generally accepted accounting principles of the United States (“GAAP”) applied on a consistent basis throughout the periods involved. The supporting schedules, if any, included in the Registration Statement, the General Disclosure Package and the Prospectus present fairly in accordance with GAAP the information required to be stated therein. The selected financial data and the summary financial information included in the Registration Statement, the General Disclosure Package and the Prospectus present fairly the information shown therein and have been compiled on a basis consistent with that of the audited financial statements included in the Registration Statement and the books and records of the Company. No other financial statements or schedules are required to be included in the Registration Statement. To the extent applicable, all disclosures contained in the Registration Statement or the Prospectus regarding “non-GAAP financial measures” (as such term is defined by the rules and regulations of the Commission) comply with Regulation G of the 1934 Act, 1934 Act Regulations and Item 10 of Regulation S-K under the 1933 Act, as applicable.

(v) No Material Adverse Change in Business. Since the respective dates as of which information is given in the Registration Statement, the General Disclosure Package and the Prospectus, except as otherwise stated therein, (A) there has been no material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business prospects of the

Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business (a “Material Adverse Effect”) and (B) there have been no transactions entered into by the Company or any of its subsidiaries, other than those in the ordinary course of business, which are material with respect to the Company and its subsidiaries considered as one enterprise.

(vi) Good Standing of the Company. The Company has been duly organized and is validly existing as a corporation in good standing under the laws of the State of Delaware and has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the General Disclosure Package and the Prospectus and to enter into and perform its obligations under this Agreement; and the Company is duly qualified as a foreign corporation to transact business and is in good standing in each other jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure so to qualify or to be in good standing would not result in a Material Adverse Effect.

(vii) Good Standing of Subsidiaries. Each subsidiary of the Company has been duly organized and is validly existing as a corporation in good standing under the laws of the jurisdiction of its incorporation, has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the General Disclosure Package and the Prospectus and is duly qualified as a foreign corporation to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure so to qualify or to be in good standing would not result in a Material Adverse Effect. Except as otherwise disclosed in the Registration Statement, all of the issued and outstanding capital stock of each such subsidiary has been duly authorized and validly issued, is fully paid and non-assessable and is owned by the Company, directly or through subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance, claim or equity; and none of the outstanding shares of capital stock of any subsidiary was issued in violation of the preemptive or similar rights of any securityholder of such subsidiary. The only subsidiaries of the Company are the subsidiaries listed on Schedule E hereto.

(viii) Capitalization. The authorized, issued and outstanding capital stock of the Company is as set forth in the General Disclosure Package and the Prospectus in the column entitled “Actual” under the caption “Capitalization” (except for subsequent issuances, if any, pursuant to this Agreement, pursuant to reservations, agreements or employee benefit plans referred to in the Prospectus (including any document incorporated by reference therein) or pursuant to the exercise of convertible securities or options referred to in the Prospectus). The shares of issued and outstanding capital stock have been duly authorized and validly issued and are fully paid and non-assessable; none of the outstanding shares of capital stock was issued in violation of the preemptive or other similar rights of any securityholder of the Company.

(ix) Authorization of Agreement. This Agreement has been duly authorized, executed and delivered by the Company.

(x) Authorization and Description of Securities. The Securities to be purchased by the Underwriters from the Company have been duly authorized for issuance and sale to the

Underwriters pursuant to this Agreement and, when issued and delivered by the Company pursuant to this Agreement against payment of the consideration set forth herein, will be validly issued and fully paid and non-assessable; the Common Stock conforms to all statements relating thereto contained in the Prospectus and such description conforms to the rights set forth in the instruments defining the same; no holder of the Securities will be subject to personal liability for the debts of the Company by reason of being such a holder; and the issuance of the Securities is not subject to the preemptive or other similar rights of any securityholder of the Company.

(xi) Absence of Conflicts. The execution, delivery and performance of this Agreement and the consummation of the transactions contemplated herein and in the Registration Statement (including the issuance and sale of the Securities and the use of the proceeds from the sale of the Securities as described in the Prospectus under the caption “Use of Proceeds”) and compliance by the Company with its obligations hereunder have been duly authorized by all necessary corporate action and do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default or Repayment Event (as defined below) under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any subsidiary pursuant to, any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which the Company, the Bank or any of their subsidiaries is a party or by which it or any of them may be bound, or to which any of the property or assets of the Company, the Bank or any of their subsidiaries is subject (except for such conflicts, breaches or defaults or liens, charges or encumbrances that would not result in a Material Adverse Effect), nor will such action result in any violation of the provisions of the charter or by-laws of the Company or any subsidiary or any applicable law, statute, rule, regulation, judgment, order, writ or decree of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company or any subsidiary or any of their assets, properties or operations. As used herein, a “Repayment Event” means any event or condition which gives the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any subsidiary.

(xii) Absence of Labor Dispute. No labor dispute with the employees of the Company or any subsidiary exists or, to the knowledge of the Company, is imminent, and the Company is not aware of any existing or imminent labor disturbance by the employees of any of its or any subsidiary’s principal suppliers, manufacturers, customers or contractors, which, in either case, may reasonably be expected to result in a Material Adverse Effect.

(xiii) Absence of Proceedings. There is no action, suit, proceeding, inquiry or investigation before or brought by any court or governmental agency or body, domestic or foreign, now pending, or, to the knowledge of the Company, threatened, against or affecting the Company or any subsidiary, which is required to be disclosed in the Registration Statement (other than as disclosed therein), or which might reasonably be expected to result in a Material Adverse Effect, or which might reasonably be expected to materially and adversely affect the properties or assets thereof or the consummation of the transactions contemplated in this Agreement or the performance by the Company of its obligations hereunder; the aggregate of all pending legal or governmental

proceedings to which the Company or any subsidiary is a party or of which any of their respective property or assets is the subject which are not described in the Registration Statement, including ordinary routine litigation incidental to the business, could not reasonably be expected to result in a Material Adverse Effect.

(xiv) Accuracy of Exhibits. There are no contracts or documents which are required to be described in the Registration Statement, the General Disclosure Package, the Prospectus or the documents incorporated by reference therein or to be filed as exhibits thereto which have not been so described and filed as required.

(xv) Possession of Intellectual Property. The Company and its subsidiaries own or possess, or can acquire on reasonable terms, adequate patents, patent rights, licenses, inventions, copyrights, know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures and excluding generally commercially available “off the shelf” software programs licensed pursuant to shrink wrap or “click and accept” licenses), trademarks, service marks, trade names or other intellectual property (collectively, “Intellectual Property”) necessary to carry on the business now operated by them, and neither the Company nor any of its subsidiaries has received any notice or is otherwise aware of any infringement of or conflict with asserted rights of others with respect to any Intellectual Property or of any facts or circumstances which would render any Intellectual Property invalid or inadequate to protect the interest of the Company or any of its subsidiaries therein, and which infringement or conflict (if the subject of any unfavorable decision, ruling or finding) or invalidity or inadequacy, singly or in the aggregate, would result in a Material Adverse Effect.

(xvi) Absence of Further Requirements. No filing with, or authorization, approval, consent, license, order, registration, qualification or decree of, any court or governmental authority or agency is necessary or required for the performance by the Company of its obligations hereunder, in connection with the offering, issuance or sale of the Securities hereunder or the consummation of the transactions contemplated by this Agreement, except (i) such as have been already obtained or as may be required under the 1933 Act or the 1933 Act Regulations or state securities laws and (ii) such as have been obtained under the laws and regulations of jurisdictions outside the United States in which the Reserved Securities are offered.

(xvii) Possession of Licenses and Permits. The Company and its subsidiaries possess such material permits, licenses, approvals, consents and other authorizations (collectively, “Governmental Licenses”) issued by the appropriate federal, state, local or foreign regulatory agencies or bodies necessary to conduct the business now operated by them; the Company and its subsidiaries are in compliance with the terms and conditions of all such Governmental Licenses, except where the failure so to comply would not, singly or in the aggregate, have a Material Adverse Effect; all of the Governmental Licenses are valid and in full force and effect, except where the invalidity of such Governmental Licenses or the failure of such Governmental Licenses to be in full force and effect would not have a Material Adverse Effect; and neither the Company nor any of its subsidiaries has received any notice of proceedings relating to the revocation or modification of any such Governmental Licenses which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would result in a Material Adverse Effect. Neither the Company nor any

of its subsidiaries has failed to file with applicable regulatory authorities any statement, report, information or form required by any applicable law, regulation or order, except where the failure to be so in compliance would not, individually or in the aggregate, have a Material Adverse Effect, all such filings were in material compliance with applicable laws when filed and no material deficiencies have been asserted by any regulatory commission, agency or authority with respect to any such filings or submissions.

(xviii) Regulatory Matters. Except as otherwise disclosed in the General Disclosure Package or the Prospectus, neither the Company nor any of its subsidiaries is subject or is party to, or has received any notice or advice that any of them may become subject or party to any investigation with respect to, any corrective, suspension or cease-and-desist order, agreement, consent agreement, memorandum of understanding or other regulatory enforcement action, proceeding or order with or by, or is a party to any commitment letter or similar undertaking to, or is subject to any directive by, or has been a recipient of any supervisory letter from, or has adopted any board resolutions at the request of, any agency, court or other governmental body, domestic or foreign (each, a “Governmental Entity”), that currently relates to or restricts in any material respect the conduct of their business or that in any manner relates to their capital adequacy, credit policies or management (each, a “Regulatory Agreement”), nor has the Company or any of its subsidiaries been advised by any Governmental Entity that it is considering issuing or requesting any such Regulatory Agreement. There is no unresolved violation, criticism or exception by any Governmental Entity with respect to any report or statement relating to any examinations of the Company or any of its subsidiaries which might reasonably be expected to result in a Material Adverse Effect. No actions, consents, or approvals of, registrations or filings with, notices to, or other actions by the Office of the Comptroller of the Currency (the “OCC”), the Federal Deposit Insurance Corporation (the “FDIC”) or the Board of Governors of the Federal Reserve System (the “Federal Reserve”) or any state bank regulatory authority acting under applicable laws (collectively, the “Approvals”), is or will be required in connection with the Underwriting Agreement and the transactions contemplated thereby, except those Approvals that already have been received and are in full force and effect.

(xix) Special Transactions. (A) Neither the Company nor any of its subsidiaries has participated in any reportable transaction, as defined in Treasury Regulation Section 1.6011-(4)(b)(1), (B) neither the Company nor any of its subsidiaries is a party to a letter of intent, accepted term sheet or similar instrument or any binding agreement that contemplates an acquisition, disposition, transfer or sale of the assets (as a going concern) or capital stock of the Company or of any subsidiary or business unit or any similar business combination transaction which would be material to the Company and its subsidiaries taken as a whole, and (C) except for restrictions under applicable banking laws and regulations that apply to commercial banks generally, no subsidiary of the Company is subject to any material direct or indirect prohibition on paying any dividends to the Company, on making any other distribution on such subsidiary’s capital stock, on repaying to the Company any loans or advances to such subsidiary from the Company or on transferring any of such subsidiary’s property or assets to the Company or any other subsidiary of the Company.

(xx) Title to Property. The Company and its subsidiaries have good and marketable title to all real property owned by the Company and its subsidiaries and good title to all other properties owned by them, in each case, free and clear of all mortgages, pledges, liens, security

interests, claims, restrictions or encumbrances of any kind except such as (a) are described in the General Disclosure Package and the Prospectus or (b) do not, singly or in the aggregate, materially affect the value of such property and do not interfere with the use made and proposed to be made of such property by the Company or any of its subsidiaries; and all of the leases and subleases material to the business of the Company and its subsidiaries, considered as one enterprise, and under which the Company or any of its subsidiaries holds real property described in the General Disclosure Package and the Prospectus, are in full force and effect, and neither the Company nor any subsidiary has any notice of any material claim of any sort that has been asserted by anyone adverse to the rights of the Company or any subsidiary under any of the leases or subleases mentioned above, or affecting or questioning the rights of the Company or such subsidiary to the continued possession of the leased or subleased premises under any such lease or sublease.

(xxi) Investment Company Act. The Company is not, and upon the issuance and sale of the Securities as herein contemplated and the application of the net proceeds therefrom as described in the General Disclosure Package and the Prospectus will not be, an “investment company” or an entity “controlled” by an “investment company” as such terms are defined in the Investment Company Act of 1940, as amended (the “1940 Act”).

(xxii) Environmental Laws. Except as would not, singly or in the aggregate, result in a Material Adverse Effect, (A) neither the Company nor any of its subsidiaries is in violation of any federal, state, local or foreign statute, law, rule, regulation, ordinance, code, policy or rule of common law or any judicial or administrative interpretation thereof, including any judicial or administrative order, consent, decree or judgment, relating to pollution or protection of human health, the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata) or wildlife, including, without limitation, laws and regulations relating to the release or threatened release of chemicals, pollutants, contaminants, wastes, toxic substances, hazardous substances, petroleum or petroleum products, asbestos-containing materials or mold (collectively, “Hazardous Materials”) or to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials (collectively, “Environmental Laws”), (B) the Company and its subsidiaries have all permits, authorizations and approvals required under any applicable Environmental Laws and are each in compliance with their requirements, (C) there are no pending or, to the knowledge of the Company, threatened administrative, regulatory or judicial actions, suits, demands, demand letters, claims, liens, notices of noncompliance or violation, investigation or proceedings relating to any Environmental Law against the Company or any of its subsidiaries and (D) there are no events or circumstances that might reasonably be expected to form the basis of an order for clean-up or remediation, or an action, suit or proceeding by any private party or governmental body or agency, against or affecting the Company or any of its subsidiaries relating to Hazardous Materials or any Environmental Laws.

(xxiii) Taxes. The Company and each of the subsidiaries has (a) timely filed all material foreign, United States federal, state and local tax returns, information returns, and similar reports that are required to be filed (taking into account valid extensions), and all tax returns are true, correct and complete, (b) paid in full all taxes required to be paid by it and any other assessment, fine or penalty levied against it, except for any such tax assessment, fine or penalty that is currently being contested in good faith or as would not have, individually or in the aggregate, a Material Adverse

Effect, and (c) established on the most recent balance sheet reserves that are adequate for the payment of all taxes not yet due and payable.

(xxiv) Insurance. The Company and its subsidiaries carry, or are covered by, insurance in such amounts and covering such risks as the Company reasonably believes are adequate for the conduct of the business of the Company and its subsidiaries and the value of their properties and as are customary in the business in which the Company and its subsidiaries are engaged; neither the Company nor any of its subsidiaries has been refused any insurance coverage sought or applied for; and the Company has no reason to believe that they will not be able to renew their existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not have a Material Adverse Effect.

(xxv) Statistical and Market Data. The statistical and market related data contained in the Prospectus and Registration Statement are based on or derived from sources which the Company believes are reliable and accurate.

(xxvi) Relationship. No relationship, direct or indirect, exists between or among the Company or any of its subsidiaries, on the one hand, and the directors, officers, shareholders, customers or suppliers of the Company or any of its subsidiaries, on the other, that is required by the Securities Act or the Securities Act Regulations to be described in the Registration Statement and/or the Prospectus and that is not so described.

(xxvii) Internal Control Over Financial Reporting. The Company and each of its subsidiaries maintains a system of internal accounting controls sufficient to provide reasonable assurance that (A) transactions are executed in accordance with management’s general or specific authorizations; (B) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain asset accountability; (C) access to assets is permitted only in accordance with management’s general or specific authorization; and (D) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. Except as described in the Registration Statement, General Disclosure Package and Prospectus, since the end of the Company’s most recent audited fiscal year, there has been (I) no material weakness in the Company’s internal control over financial reporting (whether or not remediated) and (II) no change in the Company’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

(xxviii) Disclosure Controls and Procedures. The Company and its subsidiaries employ disclosure controls and procedures (as such term is defined in Rule 13a-15 under the 1934 Act), which (A) are designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the 1934 Act is recorded, processed, summarized and reported within the time periods specified in the Commission’s rules and forms and that material information relating to the Company and its subsidiaries is made known to the Company’s principal executive officer and principal financial officer by others within the Company and its subsidiaries to allow timely decisions regarding disclosure, and (B) are effective in all

material respects to perform the functions for which they were established. Based on the evaluation of the Company’s and each subsidiary’s disclosure controls and procedures described above, the Company is not aware of (1) any significant deficiency in the design or operation of internal controls which could adversely affect the Company’s ability to record, process, summarize and report financial data or any material weaknesses in internal controls or (2) any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal controls. Since the most recent evaluation of the Company’s disclosure controls and procedures described above, there have been no material changes in internal controls or in other factors that could materially affect internal controls.

(xxix) Compliance with the Sarbanes-Oxley Act. There is and has been no failure on the part of the Company or any of the Company’s directors or officers, in their capacities as such, to comply in all material respects with any provision of the Sarbanes-Oxley Act and the rules and regulations promulgated in connection therewith, including Section 402 related to loans and Sections 302 and 906 related to certifications.

(xxx) Pending Procedures and Examinations. The Registration Statement is not the subject of a pending proceeding or examination under Section 8(d) or 8(e) of the 1933 Act, and the Company is not the subject of a pending proceeding under Section 8A of the 1933 Act in connection with the offering of the Securities.

(xxxi) Unlawful Payments. Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or other person associated with or acting on behalf of the Company or any of its subsidiaries has (A) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (B) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (C) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977, as amended; (D) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment; (E) violated or is in violation of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of any jurisdiction, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any Governmental Entity (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any Governmental Entity or any arbitrator involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company, threatened; or (F) engaged in any business activity related to the petroleum industry, military applications, the governments of Iran or Syria, and transfers of goods, technologies or services (including financial services) that may assist the governments of Iran or Syria or facilitate money laundering or other activities proscribed by U.S. law.

(xxxii) No Registration Rights. No person has the right to require the Company or any of its subsidiaries to register any securities for sale under the 1933 Act by reason of the filing of the Registration Statement with the Commission or the issuance and sale of the Securities to be sold by the Company hereunder.

(xxxiii) No Stabilization or Manipulation. Neither the Company nor any of its subsidiaries, nor any affiliates of the Company or its subsidiaries, has taken, directly or indirectly, any action designed to, or that could reasonably be expected to, cause or result in any stabilization or manipulation of the price of the Securities.

(xxxiv) No Unauthorized Use of Prospectus. The Company has not distributed and, prior to the later to occur of (i) the Closing Time and (ii) completion of the distribution of the Securities, will not distribute any prospectus (as such term is defined in the 1933 Act and the 1933 Act Regulations) in connection with the offering and sale of the Securities other than the Registration Statement, any preliminary prospectus, the Prospectus or other materials, if any, permitted by the 1933 Act or by the 1933 Act Regulations and approved by Keefe Bruyette.

(xxxv) Forward-Looking Statements. No forward-looking statement (within the meaning of Section 27A of the 1933 Act and Section 21E of the 1934 Act) contained in the Registration Statement and the Prospectus has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

(xxxvi) Lock-up Agreements. Each of the Company’s executive officers and directors, in each case as listed on Schedule D hereto, has executed and delivered lock-up agreements as contemplated by Section 5(h) hereof.

(xxxvii) Fees. Other than as contemplated by this Agreement, there is no broker, finder or other party that is entitled to receive from the Company or any subsidiary any brokerage or finder’s fee or any other fee, commission or payment as a result of the transactions contemplated by this Agreement.

(xxxviii) ERISA. The Company and each of the subsidiaries or their “ERISA Affiliates” (as defined below) are in compliance in all material respects with all presently applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (“ERISA”); no “reportable event” (as defined in ERISA) has occurred with respect to any “employee benefit plan” (as defined in ERISA) for which the Company or any of the subsidiaries or ERISA Affiliates would have any liability; the Company and each of the subsidiaries or their ERISA Affiliates have not incurred and do not expect to incur liability under (i) Title IV of ERISA with respect to termination of, or withdrawal from, any “employee benefit plan” or (ii) Sections 412, 4971, 4975 or 4980B of the United States Internal Revenue Code of 1986, as amended, and the regulations and published interpretations thereunder (collectively the “Code”); and each “employee benefit plan” for which the Company and each of its subsidiaries or any of their ERISA Affiliates would have any liability that is intended to be qualified under Section 401(a) of the Code is so qualified in all material respects and nothing has occurred, whether by action or by failure to act, which would cause the loss of such qualification. “ERISA Affiliate” means, with respect to the Company or a subsidiary, any member of any group of organizations described in Sections 414(b), (c), (m) or (o) of the Code or Section 400(b) of ERISA of which the Company or such subsidiary is a member.

(xxxix) Bank Holding Company. The Company is duly registered as a bank holding company under the Bank Holding Company Act of 1956, as amended, and meets in all material respects the applicable requirements for qualification as such. The activities of the Company’s subsidiaries are permitted of subsidiaries of a bank holding company under applicable law and the rules and regulations of the Federal Reserve set forth in Title 12 of the Code of Federal Regulations.

(xl) OFAC. Neither the Company nor any of its subsidiaries nor, to the Company’s knowledge, any director, officer, agent, employee, affiliate or person acting on behalf of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Treasury Department (“OFAC”); and the Company will not knowingly directly or indirectly use the proceeds of the sale of the Securities, or lend, contribute or otherwise make available such proceeds to any subsidiaries, joint venture partner or other person or entity, towards any sales or operations in any country sanctioned by OFAC or for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

(xli) Risk Management Instruments. Except as has not had or would not reasonably be expected to result in a Material Adverse Effect, since January 1, 2010, all material derivative instruments, including, swaps, caps, floors and option agreements, whether entered into for the Company’s own account, or for the account of one or more of its subsidiaries, were entered into (1) only in the ordinary course of business, (2) in accordance with prudent practices and in all material respects with all applicable laws, rules, regulations and regulatory policies and (3) with counterparties believed to be financially responsible at the time; and each of them constitutes the valid and legally binding obligation of the Company or one of its subsidiaries, enforceable in accordance with its terms. Neither the Company nor any of its subsidiaries, nor, to the knowledge of the Company, any other party thereto, is in breach of any of its material obligations under any such agreement or arrangement.

(xlii) Investment Securities. Except as otherwise disclosed in the General Disclosure Package or the Prospectus, the Company and each of its subsidiaries has good and marketable title to all securities held by it (except securities sold under repurchase agreements or held in any fiduciary or agency capacity) free and clear of any lien, claim, charge, option, encumbrance, mortgage, pledge or security interest or other restriction of any kind, except to the extent such securities are pledged in the ordinary course of business consistent with prudent business practices to secure obligations of the Company or any of its subsidiaries and except for such defects in title or liens, claims, charges, options, encumbrances, mortgages, pledges or security interests or other restrictions of any kind that would not, singly or in the aggregate, result in a Material Adverse Effect. Such securities are valued on the books of the Company and its subsidiaries in accordance with GAAP.

(xliii) No Broker or Dealer. Neither the Company nor any of its subsidiaries (A) is required to register as a “broker” or “dealer” in accordance with the provisions of the 1934 Act or the 1934 Act Regulations, or (B) directly, or indirectly through one or more intermediaries, controls or has any other association (within the meaning of Article I of the By-laws of FINRA) with any member firm of FINRA, except that a subsidiary of the Company has contractually established a third party brokerage arrangement with an unaffiliated broker-dealer consistent with the exception in the definition of a “broker” in Section 3(a)(4)(B)(i) of the 1934 Act and one or more of the

Company’s or its subsidiary’s employees are registered with and conduct securities business for clients through that broker-dealer.

(b) Representations and Warranties by the Company and the Bank. Each of the Company and the Bank represents and warrants to each Underwriter as of the date hereof, as of the Closing Time referred to in Section 2(c) hereof, and as of each Date of Delivery (if any) referred to in Section 2(b) hereof, and agrees with each Underwriter, as follows:

(i) Good Standing of the Bank. The Bank has been duly chartered and is validly existing as a national banking association in good standing under the laws of the United States and, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect, is duly qualified to transact business and is in good standing under the laws of each jurisdiction in which it owns or leases properties or conducts any business so as to require such qualification.

(ii) Absence of Defaults. None of the Company, the Bank of any of their subsidiaries is (A) in violation of its charter or by-laws, (B) in material violation of any law, ordinance, judgment, decree, order, directive, rule or regulation of any Governmental Entity applicable to the Bank or any of its subsidiaries (including, without limitation, all regulations, directives and orders of, or agreements with, the OCC, the FDIC, the Federal Reserve and any state bank regulatory authority, or (C) except as otherwise disclosed in the General Disclosure Package or the Prospectus, in default in the performance or observance of any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which the Company, the Bank or any of their subsidiaries is a party or by which it or any of them may be bound, or to which any of the property or assets of the Company, the Bank or any of their subsidiaries is subject (collectively, “Agreements and Instruments”) except for such defaults that would not result in a Material Adverse Effect.

(iii) Absence of Conflicts. The execution, delivery and performance of this Agreement by the Bank, compliance by the Bank with all of the provisions of this Agreement and the consummation of the transactions herein contemplated do not and will not contravene, conflict with, or result in a breach or violation of any of the terms or provisions of, or constitute a default under, the Agreements and Instruments, nor does or will any such action contravene, conflict with or result in a breach or violation of any of the terms or provisions of the charter or by-laws of the Bank or any statute, order, directive, rule or regulation of any Governmental Entity having jurisdiction over the Bank or any of its subsidiaries or any of their properties.

(iv) Deposit Insurance and Bank Regulations. The deposit accounts of the Bank are insured by the FDIC to the legal maximum, and the Bank has paid all premiums and assessments required by the FDIC and the regulations promulgated by the FDIC, and no proceeding for the termination or revocation of such insurance is pending or, to the Company’s and the Bank’s knowledge, threatened. The Bank has complied with all rules and regulations of the OCC and the FDIC, except for violations that, singly or in the aggregate, would not result in a Material Adverse Effect.

(v) Compliance with Certain Banking Regulations. The Company and the Bank have no knowledge of any facts and circumstances, and has no reason to believe that any facts or circumstances exist, that would cause the Bank: (i) to be deemed not to be in satisfactory compliance with the Community Reinvestment Act (“CRA”) and the regulations promulgated thereunder or to be assigned a CRA rating by federal or state banking regulators of lower than “satisfactory”; or (ii) to be deemed to be operating in violation, in any material respect, of the Bank Secrecy Act of 1970 (or otherwise known as the “Currency and Foreign Transactions Reporting Act”), the USA Patriot Act (or otherwise known as “Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001”), any order issued with respect to anti-money laundering by OFAC or any other anti-money laundering statute, rule or regulation.

(vi) Reports, Registrations and Statements. Since January 1, 2011, the Company, the Bank and each their subsidiaries have filed all material reports, registrations and statements, together with any required amendments thereto, that it was required to file with the Federal Reserve, the FDIC, the OCC, and any other applicable federal or state securities or banking authorities, except where the failure to file any such report, registration or statement would not reasonably be expected to result in a Material Adverse Effect. All such reports and statements filed with any such regulatory body or authority are collectively referred to herein as the “Company Reports.” As of their respective dates, the Company Reports complied as to form in all material respects with all the rules and regulations promulgated by the Federal Reserve, the FDIC, the OCC and any other applicable federal or state securities or banking authorities, as the case may be.

(vii) Adequate Capitalization. As of December 31, 2013, the Bank met or exceeded the standards necessary to be considered “well capitalized” under the FDIC’s regulatory framework for prompt corrective action.

(viii) Agreements with Regulatory Agencies. Except as disclosed in the General Disclosure Package and the Prospectus, none of the Company, the Bank or any of their subsidiaries is a party or subject to any formal agreement or memorandum of understanding with, or order issued by, or has adopted any board resolutions at the request of, the Federal Reserve, the FDIC, the OCC or any other bank regulatory authority that imposes any restrictions or requirements not generally applicable to bank holding companies or commercial banks.

(ix) Fiduciary Accounts. Except as would not reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect, the Bank and each of its subsidiaries has properly administered all accounts for which it acts as a fiduciary, including accounts for which it serves as a trustee, agent, custodian, personal representative, guardian, conservator or investment advisor, in accordance with the terms of the governing documents, applicable federal and state law and regulation and common law. Neither the Bank nor any of its subsidiaries or any of their respective directors, officers or employees has committed any breach of trust or fiduciary duty with respect to any such fiduciary account that would reasonably be expected to result in, individually or in the aggregate, a Material Adverse Effect and, except as would not reasonably be expected to result in, individually or in the aggregate, a Material Adverse Effect, the accountings for each such fiduciary account are true and correct and accurately reflect the assets of such fiduciary account.

(x) Privacy Statements. The Bank (A) complies in all material respects with the Privacy Statements (as defined below) as applicable to any given set of personal information collected by the Bank from Individuals (as defined below), (B) complies in all material respects with all applicable federal, state, local and foreign laws and regulations regarding the collection, retention, use, transfer or disclosure of personal information, and (C) takes reasonable measures as are customary in the business in which the Bank and its subsidiaries are engaged to protect and maintain the confidential nature of the personal information provided to the Bank by Individuals in accordance with the terms of the applicable Privacy Statements. To the Company’s knowledge, no claim or controversy has arisen or been threatened regarding the Privacy Statements or the implementation thereof. As used herein, “Privacy Statements” means, collectively, any and all of the Bank’s privacy statements and policies published on Bank websites or products or otherwise made available by the Bank regarding the collection, retention, use and distribution of the personal information of an individual, including, without limitation, from visitors or users of any Bank websites or products (“Individuals”).

(xii) Mortgage Banking Business. Except as has not had and would not reasonably be expected to result in a Material Adverse Effect:

a) The Bank has complied with, and all documentation in connection with the origination, processing, underwriting and credit approval of any mortgage loan originated, purchased or serviced by the Bank satisfied, (1) all applicable federal, state and local laws, rules and regulations with respect to the origination, insuring, purchase, sale, pooling, servicing, subservicing, or filing of claims in connection with mortgage loans, including all laws relating to real estate settlement procedures, consumer credit protection, truth in lending laws, usury limitations, fair housing, transfers of servicing, collection practices, equal credit opportunity and adjustable rate mortgages, (2) the responsibilities and obligations relating to mortgage loans set forth in any agreement between the Bank and any Agency, Loan Investor or Insurer, (3) the applicable rules, regulations, guidelines, handbooks and other requirements of any Agency, Loan Investor or Insurer and (4) the terms and provisions of any mortgage or other collateral documents and other loan documents with respect to each mortgage loan; and

b) No Agency, Loan Investor or Insurer has (1) claimed in writing that the Bank or any of its subsidiaries has violated or has not complied with the applicable underwriting standards with respect to mortgage loans sold by the Bank or any of its subsidiaries to a Loan Investor or Agency, or with respect to any sale of mortgage servicing rights to a Loan Investor, (2) imposed in writing restrictions on the activities (including commitment authority) of the Bank or any of its subsidiaries or (3) indicated in writing to the Bank or any of its subsidiaries that it has terminated or intends to terminate its relationship with the Bank or any of its subsidiaries for poor performance, poor loan quality or concern with respect to the Bank’s or any of its subsidiaries’ compliance with laws.

For purposes of this Section 1(b)(x): (A) “Agency” means the Federal Housing Administration, the Federal Home Loan Mortgage Corporation, the Farmers Home Administration (now known as Rural Housing and Community Development Services), the Federal National Mortgage Association, the United States Department of Veterans’ Affairs, the Rural Housing Service of the U.S. Department of Agriculture or any other federal or state agency with authority to (i) determine any investment, origination, lending or servicing requirements with regard to mortgage loans originated, purchased or serviced by the Company, the Bank or any of their subsidiaries or (ii) originate, purchase, or service mortgage loans, or otherwise promote mortgage lending, including state and local housing finance authorities; (B) “Loan Investor” means any person (including an Agency) having a beneficial interest in any mortgage loan originated, purchased or serviced by the Company, the Bank or any of their subsidiaries or a security backed by or representing an interest in any such mortgage loan; and (C) “Insurer” means a person who insures or guarantees for the benefit of the mortgagee all or any portion of the risk of loss upon borrower default on any of the mortgage loans originated, purchased or serviced by the Company, the Bank or any of their subsidiaries, including the Federal Housing Administration, the United States Department of Veterans’ Affairs, the Rural Housing Service of the U.S. Department of Agriculture and any private mortgage insurer, and providers of hazard, title or other insurance with respect to such mortgage loans or the related collateral.

(c) Officer’s Certificates. Any certificate signed by any officer of the Company or any of its subsidiaries delivered to the Representative or to counsel for the Underwriters shall be deemed a representation and warranty by the Company to each Underwriter as to the matters covered thereby.

SECTION 2. Sale and Delivery to Underwriters; Closing.

(a) Initial Securities. On the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Company agrees to sell to each Underwriter, severally and not jointly, and each Underwriter, severally and not jointly, agrees to purchase from the Company, at the price per share set forth in Schedule C, that proportion of the number of Initial Securities set forth in Schedule A opposite the name of such Underwriter, plus any additional number of Initial Securities which such Underwriter may become obligated to purchase pursuant to the provisions of Section 10 hereof, bears to the total number of Initial Securities, subject, in each case, to such adjustments among the Underwriters as the Representative in its sole discretion shall make to eliminate any sales or purchases of fractional securities.

(b) Option Securities. In addition, on the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Company hereby grant(s) an option to the Underwriters, severally and not jointly, to purchase up to an additional [ ] shares of Common Stock, at the price per share set forth in Schedule C, less an amount per share equal to any dividends or distributions declared by the Company and payable on the Initial Securities but not payable on the Option Securities. The option hereby granted will expire 30 days after the date hereof and may be exercised in whole or in part from time to time only for the purpose of covering over-allotments which may be made in connection with the offering and distribution of the Initial Securities upon notice by the Representative to the Company setting forth

the number of Option Securities as to which the several Underwriters are then exercising the option and the time and date of payment and delivery for such Option Securities. Any such time and date of delivery (a “Date of Delivery”) shall be determined by the Representative, but shall not be later than seven full business days after the exercise of said option, nor in any event prior to the Closing Time, as hereinafter defined. If the option is exercised as to all or any portion of the Option Securities, each of the Underwriters, acting severally and not jointly, will purchase that proportion of the total number of Option Securities then being purchased which the number of Initial Securities set forth in Schedule A opposite the name of such Underwriter bears to the total number of Initial Securities, subject in each case to such adjustments as the Representative in its discretion shall make to eliminate any sales or purchases of fractional shares.

(c) Payment. Payment of the purchase price for, and delivery of certificates for, the Initial Securities shall be made at the offices of Kirkland & Ellis LLP, 300 North LaSalle, Chicago, Illinois 60654, or at such other place as shall be agreed upon by the Representative and the Company, at 9:00 A.M. (Eastern time) on the third (fourth, if the pricing occurs after 4:30 P.M. (Eastern time) on any given day) business day after the date hereof (unless postponed in accordance with the provisions of Section 10), or such other time not later than ten business days after such date as shall be agreed upon by the Representative and the Company (such time and date of payment and delivery being herein called “Closing Time”).

In addition, in the event that any or all of the Option Securities are purchased by the Underwriters, payment of the purchase price for, and delivery of certificates for, such Option Securities shall be made at the above-mentioned offices, or at such other place as shall be agreed upon by the Representative and the Company, on each Date of Delivery as specified in the notice from the Representative to the Company.

Payment shall be made to the Company by wire transfer of immediately available funds to a bank account designated by the Company against delivery to the Representative through the facilities of the Depository Trust Company (“DTC”) for the respective accounts of the Underwriters for the Securities to be purchased by them. It is understood that each Underwriter has authorized the Representative, for its account, to accept delivery of, receipt for, and make payment of the purchase price for, the Initial Securities and the Option Securities, if any, which it has agreed to purchase. Keefe Bruyette, individually and not as Representative, may (but shall not be obligated to) make payment of the purchase price for the Initial Securities or the Option Securities, if any, to be purchased by any Underwriter whose funds have not been received by the Closing Time or the relevant Date of Delivery, as the case may be, but such payment shall not relieve such Underwriter from its obligations hereunder.

(d) Denominations; Registration. Certificates for the Initial Securities and the Option Securities, if any, shall be in such denominations and registered in such names as the Representative may request in writing at least one full business day before the Closing Time or the relevant Date of Delivery, as the case may be. The certificates for the Initial Securities and the Option Securities, if any, will be made available for examination and packaging by the Representative in The City of New York, not later than 10:00 A.M. (Eastern time) on the business day prior to the Closing Time or the relevant Date of Delivery, as the case may be.

SECTION 3. Covenants of the Company. The Company covenants with each Underwriter as follows:

(a) Compliance with Securities Regulations and Commission Requests. The Company, subject to Section 3(b), will comply with the requirements of Rule 430A and will notify the Representative as soon as practicable, and confirm the notice in writing, (i) when any post-effective amendment to the Registration Statement shall become effective, or any supplement to the Prospectus or any amended Prospectus shall have been filed, (ii) of the receipt of any comments from the Commission, (iii) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or for additional information, (iv) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of any order preventing or suspending the use of any preliminary prospectus or the Prospectus, or of the suspension of the qualification of the Securities for offering or sale in any jurisdiction, or of the initiation or threatening of any proceedings for any of such purposes or of any examination pursuant to Section 8(e) of the 1933 Act concerning the Registration Statement and (v) if the Company becomes the subject of a proceeding under Section 8A of the 1933 Act in connection with the offering of the Securities. The Company will effect the filings necessary pursuant to Rule 424(b) in the manner and within the time period required by Rule 424(b) (without reliance on Rule 424(b)(8)) and will take such steps as it deems necessary to ascertain promptly whether the form of prospectus transmitted for filing under Rule 424(b) was received for filing by the Commission and, in the event that it was not, it will promptly file such prospectus. The Company will make every reasonable effort to prevent the issuance of any stop order and, if any stop order is issued, to obtain the lifting thereof at the earliest possible moment.

(b) Filing of Amendments. The Company will give the Representative notice of its intention to file or prepare any amendment to the Registration Statement (including any filing under Rule 462(b)), or any amendment, supplement or revision to either any preliminary prospectus (including the prospectus included in the Registration Statement at the time it became effective) or to the Prospectus, whether pursuant to the 1933 Act, the 1934 Act or otherwise, will furnish the Representative with copies of any such documents a reasonable amount of time prior to such proposed filing or use, as the case may be, and will not file or use any such document to which the Representative or counsel for the Underwriters shall reasonably object.

(c) Delivery of Registration Statements. The Company has furnished or will deliver to the Representative and counsel for the Underwriters, without charge, signed copies of the Registration Statement as originally filed and of each amendment thereto (including exhibits filed therewith or incorporated by reference therein and documents incorporated or deemed to be incorporated by reference therein) and signed copies of all consents and certificates of experts, and will also deliver to the Representative, without charge, a conformed copy of the Registration Statement as originally filed and of each amendment thereto (without exhibits) for each of the Underwriters. The copies of the Registration Statement and each amendment thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T.

(d) Delivery of Prospectuses. The Company has delivered to each Underwriter, without charge, as many copies of each preliminary prospectus as such Underwriter reasonably requested, and the Company hereby consents to the use of such copies for purposes permitted by the 1933 Act. The Company will furnish to each Underwriter, without charge, during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act, such number of copies of the Prospectus (as amended or supplemented) as such Underwriter may reasonably request. The Prospectus and any amendments or supplements thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T.

(e) Continued Compliance with Securities Laws. The Company will comply with the 1933 Act and the 1933 Act Regulations and the 1934 Act and the 1934 Act Regulations so as to permit the completion of the distribution of the Securities as contemplated in this Agreement and in the Prospectus. If at any time when a prospectus is required by the 1933 Act to be delivered in connection with sales of the Securities, any event shall occur or condition shall exist as a result of which it is necessary, in the opinion of counsel for the Underwriters or for the Company, to amend the Registration Statement or amend or supplement the Prospectus in order that the Prospectus will not include any untrue statements of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the light of the circumstances existing at the time it is delivered to a purchaser, or if it shall be necessary, in the opinion of such counsel, at any such time to amend the Registration Statement or amend or supplement the Prospectus in order to comply with the requirements of the 1933 Act or the 1933 Act Regulations, the Company will promptly prepare and file with the Commission, subject to Section 3(b), such amendment or supplement as may be necessary to correct such statement or omission or to make the Registration Statement or the Prospectus comply with such requirements, and the Company will furnish to the Underwriters such number of copies of such amendment or supplement as the Underwriters may reasonably request. If at any time following issuance of an Issuer-Represented Free Writing Prospectus there occurred or occurs an event or development as a result of which such Issuer-Represented Free Writing Prospectus conflicted or would conflict with the information contained in the Registration Statement or included or would include an untrue statement of a material fact or omitted or would omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances prevailing at that subsequent time, not misleading, the Company has promptly notified or will promptly notify the Representative and has promptly amended or will promptly amend or supplement, at its own expense, such Issuer-Represented Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission.

(f) Blue Sky Qualifications. The Company will use its reasonable best efforts, in cooperation with the Underwriters, to qualify the Securities for offering and sale under the applicable securities laws of such states and other jurisdictions (domestic or foreign) as the Representative may designate and to maintain such qualifications in effect for a period of not less than one year from the later of the effective date of the Registration Statement and any Rule 462(b) Registration Statement; provided, however, that the Company shall not be obligated to file any general consent to service of process or to qualify as a foreign corporation or as a dealer in securities in any jurisdiction in which it is not so qualified or to subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so subject. In each jurisdiction in which the Securities have been so

qualified, the Company will file such statements and reports as may be required by the laws of such jurisdiction to continue such qualification in effect for a period of not less than one year from the effective date of the Registration Statement and any Rule 462(b) Registration Statement. The Company will also supply the Underwriters with such information as is necessary for the determination of the legality of the Securities for investment under the laws of such jurisdiction as the Underwriters may request.

(g) Rule 158. The Company will timely file such reports pursuant to the 1934 Act as are necessary in order to make generally available to its securityholders as soon as practicable an earnings statement for the purposes of, and to provide the benefits contemplated by, the last paragraph of Section 11(a) of the 1933 Act.

(h) Use of Proceeds. The Company will use the net proceeds received by it from the sale of the Securities in the manner specified in the Prospectus under “Use of Proceeds”.

(i) Listing. The Company will use its best efforts to effect and maintain the listing of the Securities on the NASDAQ Stock Market, LLC (the “NASDAQ”).

(j) Restriction on Sale of Securities. During a period of 90 days from the date of the Prospectus, the Company will not, without the prior written consent of Keefe Bruyette, (i) directly or indirectly, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or otherwise transfer or dispose of any shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock or file any registration statement under the 1933 Act with respect to any of the foregoing or (ii) enter into any swap or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Common Stock, whether any such swap or transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (A) the Securities to be sold hereunder, (B) any shares of Common Stock issued by the Company upon the exercise of an option or warrant or the conversion of a security outstanding on the date hereof and referred to in the Prospectus, (C) any shares of Common Stock issued or options to purchase Common Stock granted pursuant to existing employee benefit plans of the Company referred to in the Prospectus (including any document incorporated by reference therein), provided that such options issued or granted on or after the date hereof shall not be vested and exercisable within the 90-day period referred to above, (D) any shares of Common Stock issued pursuant to any non-employee director stock plan or dividend reinvestment plan in effect as of the date of this Agreement, or (E) any share of capital stock, right or other distribution pursuant to the Company’s Amended and Restated Rights Agreement and Tax Benefits Preservation Plan. In the event that either (i) during the period that begins on the date that is 15 calendar days plus three business days before the last day of the 90-day restricted period and ends on the last day of the 90-day restricted period, the Company issues an earnings release or material news or a material event relating to the Company occurs, or (ii) prior to the expiration of the 90-day restricted period, the Company announces that it will release earnings results or becomes aware that material news or a material event will occur during the 16-day period beginning on the last day of the 90-day restricted period, the restrictions set forth herein will continue to apply until the expiration of the date that is 15

calendar days plus three business days after the date on which the earnings release is issued or the material news or event related to the Company occurs. The Company shall promptly notify the Representative of any earnings releases, news or events that may give rise to an extension of the initial restricted period.

(k) Reporting Requirements. The Company, during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act, will file all documents required to be filed with the Commission pursuant to the 1934 Act within the time periods required by the 1934 Act and the 1934 Act Regulations.

(l) Issuer Free Writing Prospectus. The Company represents and agrees that, unless it obtains the prior consent of Keefe Bruyette and each Underwriter represents and agrees that, unless it obtains the prior consent of the Company and the Representative, it has not made and will not make any offer relating to the Securities that would constitute an “issuer free writing prospectus,” as defined in Rule 433, or that would otherwise constitute a “free writing prospectus,” as defined in Rule 405, required to be filed with the Commission. Any such free writing prospectus consented to by the Representative and the Company is hereinafter referred to as an “Issuer Permitted Free Writing Prospectus.” The Company represents that it has treated or agrees that it will treat each Issuer Permitted Free Writing Prospectus as an “issuer free writing prospectus,” as defined in Rule 433, and has complied and will comply with the requirements of Rule 433 applicable to any Issuer Permitted Free Writing Prospectus, including timely filing with the Commission where required, legending and record keeping.

(m) DTC. The Company shall use its best efforts to permit the Securities to be eligible for clearance, settlement and trading in book-entry-only form through the facilities of DTC.

(n) Compliance with FINRA Rules. The Company hereby agrees that it will ensure that the Reserved Securities will be restricted as required by FINRA or the FINRA rules from sale, transfer, assignment, pledge or hypothecation for a period of three months following the date of this Agreement. The Underwriters will notify the Company as to which persons will need to be so restricted. At the request of the Underwriters, the Company will direct the transfer agent to place a stop transfer restriction upon such securities for such period of time. Should the Company release, or seek to release, from such restrictions any of the Reserved Securities, the Company agrees to reimburse the Underwriters for any reasonable expenses (including, without limitation, legal expenses) they incur in connection with such release.

SECTION 4. Payment of Expenses.

(a) Expenses. The Company will pay or cause to be paid all expenses incident to the performance of its obligations under this Agreement, including (i) the preparation, printing and filing of the Registration Statement (including financial statements and exhibits) as originally filed and of each amendment thereto (including all Commission filing fees), (ii) the preparation, printing and delivery to the Underwriters of this Agreement, any Agreement among Underwriters and such other documents as may be required in connection with the offering, purchase, sale, issuance or delivery of

the Securities, (iii) the preparation, issuance and delivery of the certificates for the Securities to the Underwriters, including any stock or other transfer taxes and any stamp or other duties payable upon the sale, issuance or delivery of the Securities to the Underwriters, (iv) the fees and disbursements of the Company’s counsel, accountants and other advisors, (v) the qualification of the Securities under securities laws in accordance with the provisions of Section 3(f) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection therewith and in connection with the preparation of any Blue Sky Survey and any supplement thereto, (vi) the printing and delivery to the Underwriters of copies of each preliminary prospectus, any Issuer Permitted Free Writing Prospectus and the Prospectus and any amendments or supplements thereto (including any costs associated with electronic delivery of these materials), (vii) the preparation, printing and delivery to the Underwriters of copies of any Blue Sky Survey and any supplement thereto, (viii) the fees and expenses of any transfer agent or registrar for the Securities, (ix) the costs and expenses of the Company relating to investor presentations on any “road show” undertaken in connection with the marketing of the Securities, including without limitation, expenses associated with the production of road show slides and graphics, fees and expenses of any consultants engaged in connection with the road show presentations, travel and lodging expenses of the representatives and officers of the Company and any such consultants, and the cost of aircraft and other transportation chartered in connection with the road show, (x) the filing fees incident to, and the reasonable fees and disbursements of counsel to the Underwriters in connection with, the review by FINRA of the terms of the sale of the Securities (the amount shall not exceed $35,000), (xi) the fees and expenses incurred in connection with the listing of the Securities on the NASDAQ, (xii) all costs, expenses, fees and disbursements incurred or made in connection with matters related to the Reserved Securities which are designated by the Company for sale to the Invitees, and (xiii) all other costs and expenses incident to the performance of its obligations hereunder that are not otherwise specifically provided for herein.

(b) Termination of Agreement. If this Agreement is terminated by the Representative in accordance with the provisions of Section 5, Section 9 or Section 11 hereof, the Company, subject to the limitations set forth in the Engagement Letter entered into by the Company and Keefe Bruyette on October 22, 2013, shall reimburse the Underwriters for all of their reasonable and documented out-of-pocket expenses, including marketing, syndication and travel expenses and the reasonable fees and disbursements of counsel for the Underwriters.

SECTION 5. Conditions of Underwriters’ Obligations. The obligations of the several Underwriters hereunder are subject to the accuracy of the representations and warranties of the Company and the Bank contained in Section 1 hereof or in certificates of any officer of the Company or any subsidiary of the Company delivered pursuant to the provisions hereof, to the performance by the Company of its covenants and other obligations hereunder, and to the following further conditions:

(a) Effectiveness of Registration Statement. The Registration Statement, including any Rule 462(b) Registration Statement, has become effective and at Closing Time no stop order suspending the effectiveness of the Registration Statement shall have been issued under the 1933 Act or proceedings therefor initiated or threatened by the Commission, and any request on the part of the Commission for additional information shall have been complied with to the reasonable satisfaction

of counsel to the Underwriters. A prospectus containing the Rule 430 Information shall have been filed with the Commission in the manner and within the time period required by Rule 424(b) (without reliance on Rule 424(b)(8)) (or a post-effective amendment providing such information shall have been filed and declared effective in accordance with the requirements of Rule 430A).

(b) Opinion of Counsel for Company. At Closing Time, the Representative shall have received the favorable opinion and negative assurance letter, dated as of Closing Time, of Barack Ferrazzano Kirschbaum & Nagelberg LLP, counsel for the Company, each in form and substance satisfactory to counsel for the Underwriters, together with signed or reproduced copies of such letters for each of the other Underwriters to the effect set forth in Exhibit A-1 and Exhibit A-2 hereto, respectively.

(c) Opinion of Counsel for Underwriters. At Closing Time, the Representative shall have received the favorable opinion, dated as of Closing Time, of Kirkland & Ellis LLP, counsel for the Underwriters, in form and substance satisfactory to the Underwriters, together with signed or reproduced copies of such letter for each of the other Underwriters.

(d) Officers’ Certificate. At Closing Time, there shall not have been, since the date hereof or since the respective dates as of which information is given in the preliminary prospectus, the General Disclosure Package or the Prospectus as of the execution of this Agreement or the Applicable Time, any material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business prospects of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business, and the Representative shall have received a certificate of the president or a vice president of the Company and of the chief financial or chief accounting officer of the Company, dated as of Closing Time, to the effect that (i) there has been no such material adverse change, (ii) the representations and warranties in Section 1(a) hereof are true and correct with the same force and effect as though expressly made at and as of Closing Time, (iii) the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied at or prior to Closing Time, and (iv) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or are pending or are to their knowledge contemplated by the Commission.

(e) Accountant’s Comfort Letter. At the time of the execution of this Agreement, the Representative shall have received from Plante & Moran, PLLC a letter dated such date, in form and substance satisfactory to the Representative, together with signed or reproduced copies of such letter for each of the other Underwriters containing statements and information of the type ordinarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement and the Prospectus.

(f) Bring-down Comfort Letter. At Closing Time, the Representative shall have received from Plante & Moran, PLLC a letter, dated as of Closing Time, to the effect that they reaffirm the statements made in the letter furnished pursuant to subsection (g) of this Section, except that the specified date referred to shall be a date not more than three business days prior to Closing Time.

(g) Approval of Listing. The Common Stock (including the Securities) is registered pursuant to Section 12(b) of the 1934 Act and is listed on the NASDAQ, and the Company has taken no action designed to, or likely to have the effect of, terminating the registration of the Common Stock under the 1934 Act or delisting the Common Stock from the NASDAQ, nor has the Company received any notification that the Commission or the NASDAQ is contemplating terminating such registration or listing.

(h) Lock-up Agreements. At the date of this Agreement, the Representative shall have received an agreement substantially in the form of Exhibit B hereto signed by the persons listed on Schedule D hereto.

(i) Delivery of Prospectus. The Company shall have complied with the provisions hereof with respect to the furnishing of prospectuses, in electronic or printed format, on the New York business day next succeeding the date of this Agreement.

(j) No Termination Event. On or after the date hereof, there shall not have occurred any of the events, circumstances or occurrences set forth in Section 9(a).

(k) Conditions to Purchase of Option Securities. In the event that the Underwriters exercise their option provided in Section 2(b) hereof to purchase all or any portion of the Option Securities, the representations and warranties of the Company contained herein and the statements in any certificates furnished by the Company, any subsidiary of the Company hereunder shall be true and correct as of each Date of Delivery and, at the relevant Date of Delivery, the Representative shall have received:

(i) Officers’ Certificate. A certificate, dated such Date of Delivery, of the President or a Vice President of the Company and of the chief financial or chief accounting officer of the Company confirming that the certificate delivered at the Closing Time pursuant to Section 5(d) hereof remains true and correct as of such Date of Delivery.

(ii) Opinion of Counsel for Company. The favorable opinion and negative assurance letter of Barack Ferrazzano Kirschbaum & Nagelberg LLP, counsel for the Company, each in form and substance satisfactory to counsel for the Underwriters, dated such Date of Delivery, relating to the Option Securities to be purchased on such Date of Delivery and otherwise to the same effect as the opinion and negative assurance letter required by Section 5(b) hereof.

(iii) Opinion of Counsel for Underwriters. The favorable opinion of Kirkland & Ellis LLP, counsel for the Underwriters, dated such Date of Delivery, relating to the Option Securities to be purchased on such Date of Delivery and otherwise to the same effect as the opinion required by Section 5(c) hereof.

(iv) Bring-down Comfort Letter. A letter from Plante & Moran, PLLC, in form and substance satisfactory to the Representative and dated such Date of Delivery, substantially in the same form and substance as the letter furnished to the Representative pursuant to Section 5(f) hereof,

except that the “specified date” in the letter furnished pursuant to this paragraph shall be a date not more than five days prior to such Date of Delivery.

(v) No Termination Event. There shall not have occurred prior to the Date of Delivery any of the events, circumstances or occurrences set forth in Section 9(a).

(l) Additional Documents. At Closing Time and at each Date of Delivery counsel for the Underwriters shall have been furnished with such documents and opinions as they may reasonably require for the purpose of enabling them to pass upon the issuance and sale of the Securities as herein contemplated, or in order to evidence the accuracy of any of the representations or warranties, or the fulfillment of any of the conditions, herein contained; and all proceedings taken by the Company in connection with the issuance and sale of the Securities as herein contemplated shall be satisfactory in form and substance to the Representative and counsel for the Underwriters.

(m) Termination of Agreement. If any condition specified in this Section shall not have been fulfilled when and as required to be fulfilled, this Agreement, or, in the case of any condition to the purchase of Option Securities on a Date of Delivery which is after the Closing Time, the obligations of the several Underwriters to purchase the relevant Option Securities, may be terminated by the Representative by notice to the Company at any time at or prior to Closing Time or such Date of Delivery, as the case may be, and such termination shall be without liability of any party to any other party except as provided in Section 4 and except that Sections 1, 6, 7 and 8 shall survive any such termination and remain in full force and effect.

(n) No Objection. FINRA shall have confirmed that it has not raised any objections with respect to the fairness and reasonableness of the underwriting terms and arrangements.

SECTION 6. Indemnification.

(a) Indemnification of Underwriters. The Company agrees to indemnify and hold harmless each Underwriter, its affiliates (as such term is defined in Rule 501(b) under the 1933 Act) (“Affiliates”), its selling agents, and each person, if any, who controls any Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act to the extent and in the manner set forth in clauses (i), (ii), (iii) and (iv) below as follows:

(i) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto), including the Rule 430 Information, if applicable, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included in any preliminary prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto), or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading;

(ii) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of (A) the violation of any applicable laws or regulations of foreign jurisdictions where Reserved Securities have been offered and (B) any untrue statement or alleged untrue statement of a material fact included in the supplement or prospectus wrapper material distributed in each jurisdiction in which the Reserved Securities are offered in connection with the reservation and sale of the Reserved Securities to directors and eligible employees of the Company or the omission or alleged omission therefrom of a material fact necessary to make the statements therein, when considered in conjunction with any Issuer-Represented Free Writing Prospectus, the Prospectus or preliminary prospectus (or any amendment or supplement thereto), not misleading;

(iiii) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or of any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission or in connection with any violation of the nature referred to in Section 6(a)(ii)(A) hereof; provided that (subject to Section 6(d) below) any such settlement is effected with the written consent of the Company; and

(iv) against any and all expense whatsoever, as incurred (including the fees and disbursements of counsel chosen by Keefe Bruyette), reasonably incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission or in connection with any violation of the nature referred to in Section 6(a) (ii)(A) hereof, to the extent that any such expense is not paid under (i), (ii) or (iii) above;

provided, however, that this indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with written information furnished to the Company by any Underwriter through Keefe Bruyette expressly for use in the Registration Statement (or any amendment thereto), including the Rule 430 Information, if applicable, or any preliminary prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package, or the Prospectus (or any amendment or supplement thereto); provided that the parties acknowledge and agree that the only written information that the Underwriters have furnished to the Company specifically for inclusion in the Registration Statement, any preliminary prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package and the Prospectus (or any amendment or supplement thereto) is the Underwriter Information.

(b) Indemnification of Company, Directors and Officers. Each Underwriter severally agrees to indemnify and hold harmless the Company, its directors, each of its officers who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act against any and all loss, liability, claim, damage and expense described in the indemnity contained in subsection (a) of this Section, as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendment thereto), including the Rule 430

Information, if applicable, or any preliminary prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with written information furnished to the Company by such Underwriter through Keefe Bruyette expressly for use in the Registration Statement (or any amendment thereto) or such preliminary prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package or the Prospectus (or any amendment or supplement thereto); provided that the parties acknowledge and agree that the only written information that the Underwriters have furnished to the Company specifically for inclusion in the Registration Statement, any preliminary prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package and the Prospectus (or any amendment or supplement thereto) is the Underwriter Information.

(c) Actions against Parties; Notification. Each indemnified party shall give notice as promptly as reasonably practicable to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but failure to so notify an indemnifying party shall not relieve such indemnifying party from any liability hereunder to the extent it is not materially prejudiced as a result thereof and in any event shall not relieve it from any liability which it may have otherwise than on account of this indemnity agreement. In the case of parties indemnified pursuant to Section 6(a) above, counsel to the indemnified parties shall be selected by Keefe Bruyette, and, in the case of parties indemnified pursuant to Section 6(b) above, counsel to the indemnified parties shall be selected by the Company. An indemnifying party may participate at its own expense in the defense of any such action; provided, however, that counsel to the indemnifying party shall not (except with the consent of the indemnified party) also be counsel to the indemnified party. In no event shall the indemnifying parties be liable for fees and expenses of more than one counsel (in addition to any local counsel) separate from their own counsel for all indemnified parties in connection with any one action or separate but similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances. No indemnifying party shall, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any judgment with respect to any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever in respect of which indemnification or contribution could be sought under this Section 6 or Section 7 hereof (whether or not the indemnified parties are actual or potential parties thereto), unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party from all liability arising out of such litigation, investigation, proceeding or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party.

(d) Settlement Without Consent if Failure to Reimburse. If at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel, such indemnifying party agrees that it shall be liable for any settlement of the nature contemplated by Section 6(a)(ii) or Section 6(a)(iii) effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by such indemnifying party of the aforesaid request, (ii) such indemnifying party shall have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into and (iii) such indemnifying

party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement.

(e) Indemnification for Reserved Securities. In connection with the offer and sale of the Reserved Securities, the Company agrees to indemnify and hold harmless the Underwriters, their Affiliates, and selling agents, and each person, if any who controls any Underwriter with the meaning of either Section 15 of the 1933 Act or Section 20 of the 1934 Act, from and against any and all losses, liabilities, claims, damages and expenses (including, without limitation, any legal or other expenses reasonably incurred in connection with defending, investigating, or settling any such action or claim) as incurred by them (i) caused by the failure of any Invitee to pay for and accept delivery of Reserved Securities which have been orally confirmed by the end of the first business day following the date of this Agreement or (ii) related to, or arising out of or in connection with, the offering of the Reserved Securities.

SECTION 7. Contribution. If the indemnification provided for in Section 6 hereof is for any reason unavailable to, or insufficient to, hold harmless an indemnified party in respect of any losses, liabilities, claims, damages or expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount of such losses, liabilities, claims, damages and expenses incurred by such indemnified party, as incurred, (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other hand from the offering of the Securities pursuant to this Agreement or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company on the one hand and of the Underwriters on the other hand in connection with the statements or omissions, or in connection with any violation of the nature referred to in Section 6(a)(ii)(A) hereof, which resulted in such losses, liabilities, claims, damages or expenses, as well as any other relevant equitable considerations.

The relative benefits received by the Company on the one hand and the Underwriters on the other hand in connection with the offering of the Securities pursuant to this Agreement shall be deemed to be in the same respective proportions as the total net proceeds from the offering of the Securities pursuant to this Agreement (before deducting expenses) received by the Company, on the one hand, and the total underwriting discount and commissions received by the Underwriters, on the other hand, in each case as set forth on the cover of the Prospectus, bear to the aggregate public offering price of the Securities as set forth on the cover of the Prospectus.

The relative fault of the Company, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission or any violation of the nature referred to in Section 6(a)(ii)(A).

The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the

Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 7. The aggregate amount of losses, liabilities, claims, damages and expenses incurred by an indemnified party and referred to above in this Section 7 shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission.

Notwithstanding the provisions of this Section 7, no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Securities underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of any such untrue or alleged untrue statement or omission or alleged omission.

No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.

For purposes of this Section 7, each person, if any, who controls an Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act and each Underwriter’s Affiliates and selling agents shall have the same rights to contribution as such Underwriter, and each director of the Company, each officer of the Company who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as the Company. The Underwriters’ respective obligations to contribute pursuant to this Section 7 are several in proportion to the number of Initial Securities set forth opposite their respective names in Schedule A hereto and not joint.

SECTION 8. Representations, Warranties and Agreements to Survive Delivery. All representations, warranties and agreements contained in this Agreement or in certificates of officers of the Company or any of its subsidiaries submitted pursuant hereto, shall remain operative and in full force and effect, regardless of any (i) investigation made by or on behalf of any Underwriter or its Affiliates or selling agents, any person controlling any Underwriter, its officers or directors, or by or on behalf of the Company, and (ii) delivery of and payment for the Securities.

SECTION 9. Termination of Agreement.

(a) Termination; General. The Representative may terminate this Agreement, by notice to the Company, at any time at or prior to Closing Time (i) if there has been, since the time of execution of this Agreement or since the respective dates as of which information is given in the preliminary prospectus, the General Disclosure Package or the Prospectus, any material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business prospects of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business, or (ii) if there has occurred any material adverse change in the

financial markets in the United States or the international financial markets, any outbreak of hostilities or escalation thereof or other calamity or crisis or any change or development involving a prospective change in national or international political, financial or economic conditions, including without limitation as a result of terrorist activities, in each case the effect of which is such as to make it, in the judgment of the Representative, impracticable or inadvisable to market the Securities or to enforce contracts for the sale of the Securities, or (iii) if trading in any securities of the Company has been suspended or materially limited by the Commission or the NASDAQ, or if trading generally on the American Stock Exchange or the New York Stock Exchange or the NASDAQ has been suspended or materially limited, or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been required, by any of said exchanges or by such system or by order of the Commission, FINRA or any other governmental authority, or (iv) a material disruption has occurred in commercial banking or securities settlement or clearance services in the United States or with respect to Clearstream or Euroclear Systems in Europe, or (v) if a banking moratorium has been declared by either Federal or New York or Delaware authorities.

(b) Liabilities. If this Agreement is terminated pursuant to this Section, such termination shall be without liability of any party to any other party except as provided in Section 4 hereof, and provided further that Sections 1, 6, 7 and 8 shall survive such termination and remain in full force and effect.

SECTION 10. Default by One or More of the Underwriters. If one or more of the Underwriters shall fail at Closing Time or a Date of Delivery to purchase the Securities which it or they are obligated to purchase under this Agreement (the “Defaulted Securities”), the Representative shall have the right, within 24 hours thereafter, to make arrangements for one or more of the non-defaulting Underwriters, or any other underwriters, to purchase all, but not less than all, of the Defaulted Securities in such amounts as may be agreed upon and upon the terms herein set forth; if, however, the Representative shall not have completed such arrangements within such 24-hour period, then:

(a) if the number of Defaulted Securities does not exceed 10% of the number of Securities to be purchased on such date, each of the non-defaulting Underwriters shall be obligated, severally and not jointly, to purchase the full amount thereof in the proportions that their respective underwriting obligations hereunder bear to the underwriting obligations of all non-defaulting Underwriters, or

(b) if the number of Defaulted Securities exceeds 10% of the number of Securities to be purchased on such date, this Agreement or, with respect to any Date of Delivery which occurs after the Closing Time, the obligation of the Underwriters to purchase and of the Company to sell the Option Securities to be purchased and sold on such Date of Delivery shall terminate without liability on the part of any non-defaulting Underwriter.

No action taken pursuant to this Section shall relieve any defaulting Underwriter from liability in respect of its default.

In the event of any such default which does not result in a termination of this Agreement or, in the case of a Date of Delivery which is after the Closing Time, which does not result in a termination of the obligation of the Underwriters to purchase and the Company to sell the relevant Option Securities, as the case may be, either (i) the Representative or (ii) the Company shall have the right to postpone Closing Time or the relevant Date of Delivery, as the case may be, for a period not exceeding seven days in order to effect any required changes in the Registration Statement or Prospectus or in any other documents or arrangements. As used herein, the term “Underwriter” includes any person substituted for an Underwriter under this Section 10.

SECTION 11. Default by the Company.

(a) If the Company shall fail at Closing Time or at the Date of Delivery to sell the number of Securities that it is obligated to sell hereunder, then this Agreement shall terminate without any liability on the part of any nondefaulting party; provided, however, that the provisions of Sections 1, 4, 6, 7 and 8 shall remain in full force and effect. No action taken pursuant to this Section shall relieve the Company from liability, if any, in respect of such default.

SECTION 12. Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be directed to the Representative at Keefe, Bruyette & Woods, Inc., 787 Seventh Avenue, 4th Floor, New York, New York 10019, attention of Syndicate Desk, with a copy to James S. Rowe, Kirkland & Ellis LLP, Chicago, Illinois 60654; notices to the Company shall be directed to it at 37 South River Street, Aurora, Illinois 60507, attention of Doug Cheatham, with a copy to Robert M. Fleetwood, Barack Ferrazzano Kirschbaum & Nagelberg LLP, Chicago, Illinois 60606.

SECTION 13. Parties. This Agreement shall each inure to the benefit of and be binding upon the Underwriters and the Company and their respective successors. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriters and the Company and their respective successors and the controlling persons and officers and directors referred to in Sections 6 and 7 and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. This Agreement and all conditions and provisions hereof are intended to be for the sole and exclusive benefit of the Underwriters and the Company and their respective successors, and said controlling persons and officers and directors and their heirs and legal representatives, and for the benefit of no other person, firm or corporation. No purchaser of Securities from any Underwriter shall be deemed to be a successor by reason merely of such purchase.

SECTION 14. No Fiduciaries. The Company acknowledges and agrees that (i) the purchase and sale of the Securities pursuant to this Agreement, including the determination of the public offering price of the Securities and any related discounts and commissions, is an arm’s-length commercial transaction between the Company, on the one hand, and the several Underwriters, on the other hand, (ii) in connection with the offering contemplated hereby and the process leading to such transaction each Underwriter is and has been acting solely as a principal and is not the agent or fiduciary of the Company, or its respective shareholders, creditors, employees or any other third

party, (iii) no Underwriter has assumed or will assume an advisory or fiduciary responsibility in favor of the Company with respect to the offering contemplated hereby or the process leading thereto (irrespective of whether such Underwriter has advised or is currently advising the Company on other matters) and no Underwriter has any obligation to the Company with respect to the offering contemplated hereby except the obligations expressly set forth in this Agreement, (iv) the Underwriters and their respective affiliates may be engaged in a broad range of transactions that involve interests that differ from those of the Company, and (v) the Underwriters have not provided any legal, accounting, regulatory or tax advice with respect to the offering contemplated hereby and the Company has consulted its own legal, accounting, regulatory and tax advisors to the extent it deemed appropriate.

SECTION 15. GOVERNING LAW AND TIME. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. EXCEPT AS OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

SECTION 16. General Provisions. This Agreement constitutes the entire agreement of the parties to this Agreement and supersedes all prior written or oral and all contemporaneous oral agreements, understandings and negotiations with respect to the subject matter hereof. This Agreement may be executed in two or more counterparts, each one of which shall be an original, but all of which together shall constitute one and the same instrument. The exchange of copies of this Agreement and of signature pages by facsimile or other electronic means shall constitute effective execution and delivery of this Agreement by the parties hereto and may be used in lieu of the original signature pages to this Agreement for all purposes. This Agreement may not be amended or modified unless in writing by all of the parties hereto, and no condition herein (express or implied) may be waived unless waived in writing by each party whom the condition is meant to benefit. The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Company a counterpart hereof, whereupon this instrument, along with all counterparts, will become a binding agreement between the Underwriters and the Company in accordance with its terms.

	Very truly yours,

	OLD SECOND BANCORP, INC.


	By:
	Name:
	Title:


	OLD SECOND NATIONAL BANK


	By:
	Name:
	Title:

CONFIRMED AND ACCEPTED,

as of the date first above written:

KEEFE BRUYETTE & WOODS, INC.

Authorized Signatory

For itself and as Representative of the other Underwriters named in Schedule A hereto.

SCHEDULE A

		Number
		of
		Initial
Name of Underwriter		Securities

Keefe Bruyette & Woods, Inc.
Sandler O’Neill & Partners, L.P.
FIG Partners LLC

Total		[ ]

Schedule A - 1

SCHEDULE B

Issuer-Represented General Free Writing Prospectus

[List]

Pricing Information Provided Orally by Underwriters

1. Initial price of the Securities to be offered to the public.

Schedule B - 1

SCHEDULE C

Old Second Bancorp, Inc.

[ ] Shares of Common Stock

(Par Value $1.00 Per Share)

1. The initial public offering price per share for the Securities, determined as provided in said Section 2, shall be $[ ].

2. The purchase price per share for the Securities to be paid by the several Underwriters shall be $[ ], being an amount equal to the initial public offering price set forth above less $[ ] per share; provided that the purchase price per share for any Option Securities purchased upon the exercise of the over-allotment option described in Section 2(b) shall be reduced by an amount per share equal to any dividends or distributions declared by the Company and payable on the Initial Securities but not payable on the Option Securities.

Schedule C - 1

SCHEDULE D

William B. Skoglund

J. Douglas Cheatham

Edward Bonifas

James L. Eccher

Barry Finn

John Ladowicz

William J. Kane

William J. Meyer

Gerald Palmer

James Carl Schmitz

Duane Suits

Schedule D - 1

SCHEDULE E

List of Subsidiaries

Old Second National Bank

Old Second Capital Trust I

Old Second Capital Trust II
Old Second Affordable Housing Fund, L.L.C.
Station I, LLC

Station II, LLC

Station III, LLC

Station IV, LLC

Station V, LLC

Station VI, LLC

Station VII, LLC

River Street Advisors, LLC

Schedule E - 1

EXHIBIT A-1

FORM OF OPINION OF COMPANY’S COUNSEL TO BE DELIVERED PURSUANT TO SECTION 5(b)

(i) Based solely on the good standing certificate issued by the relevant governmental agency, the Company is validly existing as a corporation in good standing under the laws of the State of Delaware.

(ii) The Company has the requisite corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and to enter into and perform its obligations under the Underwriting Agreement.

(iii) Based solely on the good standing certificates issued by the relevant governmental agency, the Company is duly qualified as a foreign corporation to transact business and is in good standing in the State of Illinois.

(iv) The authorized capital stock, and, to our knowledge, the issued and outstanding capital stock of the Company is as set forth in the Prospectus in the column entitled “Actual” under the caption “Capitalization” (except for subsequent issuances, if any, pursuant to the Underwriting Agreement or pursuant to reservations, agreements or employee benefit plans that are exhibits to the Registration Statement).

(v) The Securities to be purchased by the Underwriters from the Company have been duly authorized for issuance and sale to the Underwriters pursuant to the Underwriting Agreement and, when issued and delivered by the Company pursuant to the Underwriting Agreement against payment of the consideration set forth in the Underwriting Agreement, will be validly issued and fully paid and non-assessable.

(vi) The issuance and sale of the Securities by the Company is not subject to the preemptive rights of any securityholder of the Company, under the laws of the State of Delaware and the documents filed as exhibits to the Registration Statement.

(vii) Based solely on good standing certificates issued by the relevant governmental agencies or bodies, each subsidiary of the Company listed on Schedule E of the Underwriting Agreement (each, a “Subsidiary”) has been duly incorporated and is validly existing as a corporation or is validly existing as a bank subject to the laws of the United States of America, in each case in good standing under the laws of the jurisdiction of its incorporation, has corporate or bank power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and is duly qualified as a foreign corporation to transact business and is in good standing in the State of Illinois.

(viii) The Underwriting Agreement has been duly authorized, executed and delivered by the Company.

Exhibit B - 1

(ix) The Registration Statement, including any Rule 462(b) Registration Statement, has been declared effective under the 1933 Act; any required filing of the Prospectus pursuant to Rule 424(b) has been made in the manner and within the time period required by Rule 424(b); and, based solely upon our review on the date hereof of stop orders listed at www.sec.gov/litigation/stoporders.shtml, no stop order suspending the effectiveness of the Registration Statement or any Rule 462(b) Registration Statement has been issued under the 1933 Act and no proceedings for that purpose have been instituted or are pending or threatened by the Commission.

(x) The Registration Statement, including any Rule 462(b) Registration Statement, the Rule 430 Information, as applicable, the Prospectus, and each amendment or supplement to the Registration Statement and Prospectus, excluding the documents incorporated by reference therein, as of their respective effective or issue dates (other than the financial statements and supporting schedules included therein or omitted therefrom, and any other financial data, as to which we express no opinion) complied as to form in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations.

(xi) The reports filed under the 1934 Act incorporated by reference in the Prospectus (other than the financial statements and supporting schedules included therein or omitted therefrom, and any other financial data, as to which we express no opinion), when they became effective or were filed with the Commission, as the case may be, complied as to form in all material respects with the requirements of the 1934 Act and the rules and regulations of the Commission thereunder.

(xii) To our knowledge, there is not pending or threatened any action, suit, proceeding, to which the Company or any Subsidiary is a party, or to which the property of the Company or any Subsidiary is subject, before or brought by any court or governmental agency or body, domestic or foreign, which are expected to result in a Material Adverse Effect, or which are expected to materially and adversely affect the properties or assets thereof or the consummation of the transactions contemplated in the Underwriting Agreement or the performance by the Company of its obligations thereunder.

(xiii) The information (i) in or incorporated by reference in the preliminary prospectus and the Prospectus under “Business—Supervision and Regulation,” “Description of Capital Stock,” “Capital Plan and this Offering” and “Market Price and Dividend Information” and (ii) in the Registration Statement under Item 14, to the extent that such information constitutes matters of law, summaries of legal matters, the Company’s charter and bylaws or legal proceedings, or legal conclusions, has been reviewed by us and is correct in all material respects.

(xiv) To our knowledge, there are no franchises, contracts, indentures, mortgages, loan agreements, notes, leases or other instruments required to be described or referred to in the Registration Statement or to be filed as exhibits thereto other than those described or referred to therein or filed or incorporated by reference as exhibits thereto, and the descriptions thereof or references thereto are correct in all material respects.

Exhibit B - 2

(xiii) To our knowledge, neither the Company nor any Subsidiary is in violation of its charter or bylaws and, except as described in the Registration Statement, no default by the Company or any Subsidiary exists in the due performance or observance of any material obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, loan agreement, note, lease or other agreement or instrument that is filed or incorporated by reference as an exhibit to the Registration Statement.

(xvi) Except for those regulatory approvals that the Company has already received and that are in full force and effect, no filing with, or authorization, approval, action, consent, notice, license, order, registration, qualification, decree of, or other action by any court or governmental authority or agency, including the Board of Governors of the Federal Reserve System, the Office of the Comptroller of the Currency, the Federal Deposit Insurance Corporation or any state bank regulatory authority acting under applicable laws, domestic or foreign (other than under the 1933 Act and the 1933 Act Regulations, which have been obtained, or as may be required under the securities or blue sky laws of the various states, as to which we express no opinion) is or will be necessary or required of the Company in connection with the due authorization, execution and delivery of the Underwriting Agreement and the transactions contemplated thereby or for the offering, issuance, sale or delivery of the Securities.

(xvii) The execution, delivery and performance of the Underwriting Agreement and the consummation of the transactions contemplated in the Underwriting Agreement and in the Registration Statement (including the issuance and sale of the Securities and the use of the proceeds from the sale of the Securities as described in the Prospectus under the caption “Use Of Proceeds”) and compliance by the Company with its obligations under the Underwriting Agreement do not and will not, whether with or without the giving of notice or lapse of time or both, conflict with or constitute a breach of, or default or Repayment Event (as defined in Section 1(a)(xi) of the Underwriting Agreement) under or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any Subsidiary pursuant to any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or any other agreement or instrument, that are filed as an exhibit to the Registration Statement, or to which any of the property or assets of the Company or any Subsidiary is subject (except for such conflicts, breaches or defaults or liens, charges or encumbrances that would not have a Material Adverse Effect, and we express no opinion as to compliance with any financial covenants), nor will such action result in any violation of the provisions of the charter or bylaws of the Company or any Subsidiary, or any applicable law, statute, rule, regulation, judgment, order, writ or decree, known to us, of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company or any subsidiary or any of their respective properties, assets or operations.

(xviii) The Company is not, and immediately after giving effect to the offering and sale of the Securities to the Underwriters and the application of the proceeds thereof as described in the Prospectus under the heading “Use of Proceeds” will not be, an “investment company” or an entity “controlled” by an “investment company” required to be registered as such within the meaning of the Investment Company Act of 1940, as amended.

Exhibit B - 3

(xix) Based solely on the certificates issued by the relevant bank regulatory agencies, the Company is a bank holding company duly registered under the Bank Holding Company Act of 1956, and the Bank holds the requisite authority to do business as a national banking association.

(xx) Based solely on the certificates issued by the relevant bank regulatory agencies, the Bank is an insured depository institution under the provisions of the Federal Deposit Insurance Act, and the deposit accounts of the Bank are insured by the Federal Deposit Insurance Corporation to the legal maximum, and no proceeding for the termination or revocation of such insurance is pending or, to our knowledge, threatened.

(xxi) Except as described in the Registration Statement, the General Disclosure Package and the Prospectus, or except as is not required by the 1933 Act or the 1933 Act Regulations or the 1934 Act or the 1934 Act Regulations to be described in the Registration Statement, the General Disclosure Package or the Prospectus: (A) neither the Company nor any of its Subsidiaries is a party to or subject to any order, decree, agreement, memorandum of understanding or similar agreement with, or a commitment letter, supervisory letter or similar submission to, any governmental entity charged with the supervision or regulation of depository institutions or engaged in the insurance of deposits or the supervision or regulation of it or any of its subsidiaries, including the Federal Reserve System, Office of the Comptroller of the Currency and the Federal Deposit Insurance Corporation; and (B) to our knowledge, neither the Company nor any of its Subsidiaries has been advised by any such governmental entity that such governmental entity is contemplating issuing or requesting (or is considering the appropriateness of issuing or requesting) any order, decree, agreement, memorandum of understanding, commitment letter, supervisory letter or similar submission.

In rendering such opinion, such counsel may rely as to matters of fact (but not as to legal conclusions), to the extent they deem proper, on certificates of responsible officers of the Company and public officials. Such opinion shall not state that it is to be governed or qualified by, or that it is otherwise subject to, any treatise, written policy or other document relating to legal opinions, including, without limitation, the Legal Opinion Accord of the ABA Section of Business Law (1991).

Exhibit B - 4

EXHIBIT A-2

FORM OF NEGATIVE ASSURANCE LETTER OF COMPANY’S COUNSEL TO BE DELIVERED PURSUANT TO SECTION 5(b)

We have participated in conferences with representatives and counsel of the Representative and with certain officers and employees of, and independent certified public accountants for, the Company, at which conferences the contents of the Registration Statement, the Prospectus and related matters were discussed, and we advise the Representative that nothing has come to our attention that would lead us to believe that the Registration Statement or any amendment thereto, including the Rule 430 Information, (except for financial statements and schedules and other financial data included or incorporated by reference therein or omitted therefrom, as to which we make no statement), at the time such Registration Statement or any such amendment became effective, contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading or that the Prospectus or any amendment or supplement thereto (except for financial statements and schedules and other financial data included or incorporated by reference therein or omitted therefrom, as to which we make no statement), at the time the Prospectus was issued, at the time any such amended or supplemented prospectus was issued or at the Closing Time, included or includes an untrue statement of a material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Furthermore, we have no reason to believe that the documents specified in the General Disclosure Package, as of the Applicable Time and as of the Closing Date, contained any untrue statement of a material fact or omitted to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

Exhibit B - 5

EXHIBIT B

[Form of lock-up from directors, officers or other shareholders pursuant to Section 5(h)]

Keefe, Bruyette & Woods, Inc.
as Representative of the several Underwriters
to be named in the Underwriting Agreement
787 Seventh Avenue
4th Floor
New York, New York 10019

Re: Proposed Public Offering by Old Second Bancorp, Inc.

Dear Sirs and Madams:

The undersigned, an executive officer and/or director of Old Second Bancorp, Inc., a Delaware corporation (the “Company”), understands that Keefe, Bruyette & Woods, Inc. (“KBW”), as representative of the Underwriters, proposes to enter into an Underwriting Agreement (the “Underwriting Agreement”) with the Company and each of the selling shareholders named therein providing for the public offering of shares of the Company’s common stock, $1.00 par value per share (the “Common Stock”). In recognition of the benefit that such an offering will confer upon the undersigned as an executive officer, director and/or shareholder of the Company, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned agrees with each underwriter to be named in the Underwriting Agreement that, from the date hereof until ninety (90) days from the date of the Underwriting Agreement, the undersigned will not, without the prior written consent of KBW, directly or indirectly, (i) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant for the sale of, or otherwise dispose of or transfer any shares of the Common Stock or any securities convertible into or exchangeable or exercisable for Common Stock, whether now owned or hereafter acquired by the undersigned or with respect to which the undersigned has or hereafter acquires the power of disposition, or publicly announce an intention to do any of the foregoing, or make any demand or request for the Company to file any registration statement under the Securities Act of 1933, as amended, with respect to any of the foregoing or (ii) enter into any swap, hedge or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Common Stock, whether any such swap, hedge or transaction is to be settled by delivery of Common Stock or other securities, in cash or otherwise. In the event that either (i) during the period that begins on the date that is fifteen (15) calendar days plus three (3) business days before the last day of the 90-day restricted period and ends on the last day of the 90-day restricted period, the Company issues an earnings release or material news or a material event relating to the Company occurs, or (ii) prior to the expiration of the 90-day restricted period, the Company announces that it will release earnings results or becomes aware that material news or a material event will occur during the 16-day period beginning on the last day of the 90-day restricted period, the restrictions set forth herein will continue to apply until the expiration of the date that is fifteen (15) calendar days plus three (3) business days after

Exhibit B - 6

the date on which the earnings release is issued or the material news or event related to the Company occurs. The Company shall promptly notify KBW of any earnings releases, news or events that may give rise to an extension of the initial restricted period.

The undersigned hereby acknowledges and agrees that written notice of any extension of the 90-day restricted period pursuant to the previous paragraph will be delivered by KBW to the Company (in accordance with Section 12 of the Underwriting Agreement) and that any such notice properly delivered will be deemed to have been given to, and received by, the undersigned. The undersigned further agrees that, prior to engaging in any transaction or taking any other action that is subject to the terms of this Lock-Up Agreement during the period from the date of this Lock-Up Agreement to and including the 34th day following the expiration of the initial 90-day restricted period, the undersigned will give notice thereof to the Company and will not consummate such transaction or take any such action unless the undersigned has received written confirmation from the Company that the 90-day restricted period (as may have been extended pursuant to the previous paragraph) has expired.

Notwithstanding the foregoing, the undersigned may transfer the undersigned’s shares of Common Stock or securities convertible into or exercisable for Common Stock (i) as a bona fide gift or gifts, provided that the donee or donees agree to be bound in writing by the restrictions set forth herein, (ii) to any trust or family limited partnership for the direct or indirect benefit of the undersigned or the immediate family of the undersigned, provided that the trustee of the trust or general partner of the family limited partnership, as the case may be, agrees to be bound by the restrictions set forth herein, and provided further that any such transfer shall not involve a disposition for value, (iii) pursuant to the exercise by the undersigned of stock options that have been granted by the Company prior to, and are outstanding as of, the date of the Underwriting Agreement, where the Common Stock received upon any such exercise is held by the undersigned, individually or as fiduciary, in accordance with the terms of this Lock-Up Agreement, or (iv) with the prior written consent of KBW; provided, however, that, with respect to the exceptions in clauses (i) - (iii), no filing pursuant to Section 16 of the Securities Exchange Act of 1934, as amended, is required or made voluntarily during the restricted period referred to in the previous paragraphs. For purposes of this Lock-Up Agreement, “immediate family” shall mean any relationship by blood, marriage or adoption, not more remote than first cousin.

The undersigned represents and warrants that the undersigned beneficially owns the shares of Common Stock covered by this Lock-Up Agreement, and that the undersigned has full power and authority to enter into this Lock-Up Agreement. The undersigned agrees that the provisions of this Lock-Up Agreement shall be binding also upon the successors, assigns, heirs and personal representatives of the undersigned. The undersigned also agrees and consents to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the undersigned’s shares of Common Stock, except in compliance with this Lock-Up Agreement. In furtherance of the foregoing, the Company and its transfer agent are hereby authorized to decline to make any transfer of securities if such transfer would constitute a violation or breach of this Lock-Up Agreement.

Notwithstanding the provisions of this Lock-Up Agreement set forth above, if (i) the Underwriting Agreement is not entered into by April 9, 2014 or (ii) the Underwriting Agreement (other than the provisions thereof which survive termination) shall terminate or be terminated prior to payment for and delivery of the Common Stock to be sold thereunder, the undersigned

Exhibit B - 7

shall be released from all obligations under this Lock-Up Agreement.

This Lock-Up Agreement shall be governed by and construed in accordance with the laws of the State of New York.

Exhibit B - 8