Exhibit 1.1

$45,000,000

TRIUMPH BANCORP, INC.

(a Texas corporation)

1,800,000 Depositary Shares

Each Representing a 1/40th Interest in a Share of 7.125% Series C Fixed-Rate Non-Cumulative Perpetual Preferred Stock

UNDERWRITING AGREEMENT

June 16, 2020

B. RILEY FBR, INC.

299 Park Ave, 21st Floor

New York, NY 10171

As representative of the Underwriters listed in Schedule A hereto

Ladies and Gentlemen:

Triumph Bancorp, Inc., a Texas corporation (the “Company”), confirms its agreement (the “Agreement”) with B. Riley FBR, Inc. 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 B. Riley FBR, Inc. is acting as representative (in such capacity, the “Representative”), with respect to the issue and sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of an aggregate of 1,800,000 depositary shares (the “Firm Shares”), each representing 1/40th ownership interest in a share of the Company’s 7.125% Series C Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $0.01 per share (the “Preferred Shares”), with a liquidation preference of $1,000 per share (equivalent to $25.00 per depositary share). The Company also proposes to issue and sell to the several Underwriters not more than an additional 270,000 depositary shares (the “Option Shares”) if and to the extent that you, as Representative, shall have determined to exercise, on behalf of the Underwriters, the right to purchase such depositary shares granted to the Underwriters in Section 2 hereof. The Preferred Shares will, when issued, be deposited by the Company against delivery of depositary receipts (the “Depositary Receipts”) to be issued by Equiniti Trust Company (the “Depositary”), under a Deposit Agreement, to be dated as of the Closing Date (the “Deposit Agreement”), among the Company, the Depositary and the holders from time to time of the Depositary Receipts issued thereunder. Each Depositary Receipt will evidence one or more Depositary Shares (as defined below). The Preferred Shares shall have the rights, powers and preferences set forth in the Statement of Designation of 7.125% Series C Fixed-Rate Non-Cumulative Perpetual Preferred Stock (the “Statement of Designation”), which shall have been duly filed with the Texas Secretary of State on or prior to the Closing Date, to the Company’s Second Amended and Restated Certificate of Formation, as amended. The Firm Shares and the Option Shares are hereinafter collectively referred to as the “Depositary Shares,” and the Depositary Shares, together with the Preferred Shares, are hereinafter collectively referred to as the “Securities.”

The Company has filed with the Securities and Exchange Commission (the “Commission”) an “automatic shelf registration statement” as defined under Rule 405 under the Securities Act of 1933, as amended (the “1933 Act”), on Form S-3 (File No. 333-237663), including the related preliminary prospectus or prospectus covering the registration of certain securities, including the Securities, under the 1933 Act. Such registration statement became effective under the 1933 Act upon filing with 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. Such registration statement, at any given time, including any amendments thereto existing at such time, the exhibits and any schedules thereto on file with the Commission at

such time, the information incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act at such time and the information otherwise deemed to be a part thereof or included therein at such time by the rules and regulations of the Commission under the 1933 Act (the “1933 Act Regulations”), is referred to herein as the “Registration Statement.” In the event that the Company shall file a registration statement pursuant to Rule 462(b) under the 1933 Act (a “Rule 462(b) Registration Statement”) in connection with the offering of the Securities, then, from and after the date of such filing, all references herein to the “Registration Statement” shall be deemed to mean and include such Rule 462(b) Registration Statement, mutatis mutandis, unless otherwise expressly stated or the context otherwise requires. The Company will prepare and file a prospectus supplement relating to the Securities with the Commission in accordance with the provisions of Rule 430B of the 1933 Act Regulations (“Rule 430B”) and paragraph (b) of Rule 424 of the 1933 Act Regulations (“Rule 424(b)”). Any information included in such prospectus supplement that was omitted from the Registration Statement or any post-effective amendment thereto that is deemed to be part thereof and included therein pursuant to Rule 430B is referred to herein as “Rule 430B Information.” The final prospectus and prospectus supplement used in connection with the offering of the Securities, including the documents incorporated by reference or deemed to be incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act, in the form first furnished to the Underwriters for use in connection with the offering of the Securities, are referred to herein collectively as the “Prospectus.” Each prospectus and prospectus supplement used in connection with the offering of the Securities that omitted the Rule 430B Information is herein called a “preliminary 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 any 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” (or other references of like import) in the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to include all such financial statements and schedules and other information which are incorporated by reference in, or otherwise deemed by the 1933 Act Regulations to be part of or included in, the Registration Statement, any preliminary prospectus or the Prospectus, as the case may be, prior to the execution of this Agreement; and all references in this Agreement to amendments or supplements to the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to include the filing of any document under the Securities Exchange Act of 1934, as amended (the “1934 Act”), which is incorporated by reference in or otherwise deemed by the 1933 Act Regulations to be a part of or included in the Registration Statement, such preliminary prospectus or the Prospectus, as the case may be, after the execution of this Agreement.

SECTION 1. Representations and Warranties.

(a) Representations and Warranties by the Company. The Company represents and warrants to each Underwriter, as of the date hereof, at the Applicable Time (as defined herein) and at the Closing Date (as defined in Section 2(b)), and agrees with each Underwriter, as follows:

(i)    Well-Known Seasoned Issuer; Not an “Ineligible Issuer”. (A) At the time of filing the Registration Statement; (B) at the time of each subsequent amendment to the Registration Statement for the purposes of complying with Section 10(a)(3) of the 1933 Act (whether such amendment was by post-effective amendment, incorporated report filed pursuant to Section 13 or 15(d) of the 1934 Act or form of prospectus); (C) at the time the Company or any person acting on its behalf (within the meaning, for this clause only, of Rule 163(c) under the 1933 Act) made any offer relating to the Securities in reliance on the exemption of Rule 163 under the 1933 Act, the Company was a “well-known seasoned issuer” as defined in Rule 405 under the 1933 Act. At the earliest time after the filing of the Registration Statement that the Company or another offering participant made a bona fide offer (within the meaning of Rule 164(h)(2) under the 1933 Act) of the Securities and at the date hereof, the Company was not nor is it an “ineligible issuer” (as defined in Rule 405 of the 1933 Act Regulations (“Rule 405”));

(ii)    Registration Statement, Prospectus and Disclosure Package at Time of Sale. The Company meets the requirements for use of Form S-3 under the 1933 Act. The Registration Statement was filed by the Company with the Commission not earlier than three years prior to the date hereof. The Registration

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Statement became effective under the 1933 Act upon filing with the Commission. The Registration Statement is an “automatic shelf registration statement,” as defined in Rule 405, and the Securities, since their registration on the Registration Statement, have been and remain eligible for registration by the Company on an automatic shelf registration statement. No stop order suspending the effectiveness of the Registration Statement or any part thereof has been issued by the Commission under the 1933 Act and no proceeding for that purpose has been instituted or is pending or, to the knowledge of the Company, is threatened or contemplated by the Commission or any state or other jurisdiction or regulatory body, and no notice of objection of the Commission to the use of such Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) of the 1933 Act Regulations has been received by the Company. No order preventing or suspending the use of any preliminary prospectus, the Statutory Prospectus (as defined below) or the Prospectus has been issued and no proceeding for that purpose has been instituted or is pending or, to the knowledge of the Company, is threatened or contemplated by the Commission or any state or other jurisdiction or regulatory body. The Company has fully complied with any request on the part of the Commission or any state or other jurisdiction’s regulatory body for additional information with respect to the Registration Statement.

At the respective times the Registration Statement and any post-effective amendments thereto became effective, at each deemed effective date with respect to the Underwriters and the Securities pursuant to Rule 430B(f)(2) and at the Closing Date, the Registration Statement and any amendments thereto complied, complies and will comply, as the case may be, in all material respects with the requirements of the 1933 Act, the 1933 Act Regulations, and neither the Registration Statement nor any amendment thereto contained, contains or will contain, as the case may be, an untrue statement of a material fact or omitted, omits or will omit, as the case may be, to state a material fact required to be stated therein or necessary to make the statements therein not misleading. Neither the General Disclosure Package (as defined below), at the Applicable Time, nor Prospectus at the Closing Date, included, includes or will include, as the case may be, an untrue statement of a material fact or omitted, omits or will omit, as the case may be, to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. The preliminary prospectus and the Prospectus complied, when filed with the Commission, in all material respects with the 1933 Act, 1933 Act Regulations, and each preliminary prospectus and the Prospectus delivered to the Underwriters for use in connection with the offering of the Securities 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 (as defined below), each Issuer-Represented Free Writing Prospectus (as defined below), Issuer-Permitted Free Writing Prospectus (as defined below) and the Statutory Prospectus (as defined below), all considered together (collectively, the “General Disclosure Package”), did not include an untrue statement of a material fact or omit 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.

The representations and warranties in this subsection shall not apply to statements in or omissions from the Registration Statement or the Prospectus or the General Disclosure Package or any amendment or supplement thereto made in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representative expressly for use in the Registration Statement or the Prospectus or any amendment or supplement thereto. For purposes of this Agreement, the only information so furnished shall be the information in the first and sixth sentences under the subheading “Stabilization,” under the heading “Underwriting,” in each case, contained in the Registration Statement, the Prospectus or the General Disclosure Package (collectively, the “Underwriter Information”).

As used in this subsection and elsewhere in this Agreement:

“Applicable Time” means 4:35 p.m. (New York City time) on June 16, 2020 or such other time as agreed by the Company and the Representative.

“Statutory Prospectus,” at any given time, means the base prospectus that is included in the Registration Statement and the preliminary prospectus supplement relating to the Securities immediately prior to that time, including the documents incorporated by reference therein at such time. 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 430B shall be considered to be included in the Statutory Prospectus only at the actual time that such form of prospectus is filed with the Commission pursuant to Rule 424(b).

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“Issuer-Represented Free Writing Prospectus” means any “issuer free writing prospectus,” as defined in (h)(i) of Rule 433 of the 1933 Act Regulations (“Rule 433”), relating to the Securities that (i) is required to be filed with the Commission by the Company, or is filed, with the Commission by the Company, including the Issuer-Represented Free Writing Prospectus set forth on Schedule B hereto, (ii) is a “road show that is a written communication” within the meaning of Rule 433(d)(8)(i), whether or not required to be filed with the Commission, or (iii) is exempt from filing with the Commission pursuant to Rule 433(d)(5)(i) because it contains a description of the Securities or of the offering that does not reflect the final terms, in each case in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records pursuant to Rule 433(g).

Each Issuer-Represented Free Writing Prospectus, at its issue date and at all subsequent times through the completion of the offer and sale of the Securities or until any earlier date that the Company notified or notifies the Representative, did not, does not and will not include any information that conflicted, conflicts or will conflict with the information contained in the Registration Statement, the Statutory Prospectus 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.

(iii)    Incorporated Documents. The documents incorporated by reference in the preliminary prospectus, the General Disclosure Package and the Prospectus, when read together with the other information in the Registration Statement, at the time the Registration Statement became effective or such documents were filed with the Commission, as the case may be, did not, and at the Applicable Time did not and at the Closing Date will not include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. The documents incorporated or deemed to be incorporated by reference in the Prospectus, when filed with the Commission, conformed or will conform, as the case may be, in all material respects to the applicable requirements of the 1934 Act and the rules and regulations of the Commission thereunder (the “1934 Act Regulations”).

(iv)    Independent Accountants. Crowe LLP, who certified the financial statements and supporting schedules of the Company included in the Prospectus, are independent public accountants as required by the 1933 Act and the 1933 Act Regulations and the rules of the Public Company Accounting Oversight Board and, to the Company’s knowledge, are not and have not been in violation of the auditor independence requirements of the Sarbanes Oxley Act of 2002 and the related rules and regulations of the Commission (the “Sarbanes-Oxley Act”) in respect of the entity whose financial statements it audited.

(v)    Financial Statements. The financial statements included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus, together with the related schedules and notes, present fairly, in all material respects, the financial condition, results of operations and cash flows of the Company and its consolidated subsidiaries, at the dates indicated and their respective statements of operations, stockholders’ equity and cash flows of the Company and its consolidated subsidiaries for the periods specified. Such financial statements have been prepared in compliance with the requirements of the 1933 Act and the 1934 Act and in conformity with accounting principles generally accepted in the United States of America (“GAAP”) applied on a consistent basis throughout the periods involved. Any selected financial data and the summary financial information included or incorporated by reference in the Registration Statement, the General Disclosure Package, preliminary prospectus and the Prospectus present fairly, in all material respects, the information shown therein and have been compiled on a basis consistent with that of the audited financial statements included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus. The supporting schedules, if any, included therein present fairly, in all material respects, the information required to be stated therein. To the extent applicable, all disclosures contained in the Registration Statement, the General Disclosure Package 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, the 1934 Act Regulations and Item 10 of Regulation S-K under the 1933 Act, as applicable, in all material respects. Except as included

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therein, no historical or pro forma financial statements or supporting schedules are required to be included or incorporated by reference in the Registration Statement, the General Disclosure Package or the Prospectus. The interactive data in eXtensible Business Reporting Language incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus fairly presents the required information in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto.

(vi)    Certain Data and Forward-Looking Statements. All statistical or market-related data included or incorporated by reference in the Registration Statement, the General Disclosure Package, and the Prospectus are based on or derived from sources that the Company reasonably believes to be reliable and accurate, and the Company has obtained the consent to the use of such data from such sources to the extent required. Each “forward-looking statement” (within the meaning of Section 27A of the 1933 Act or Section 21E of the 1934 Act) contained or incorporated by reference in the Registration Statement, the General Disclosure Package, preliminary prospectus and the Prospectus has been made or reaffirmed with a reasonable basis and in good faith.

(vii)    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, or any development that could reasonably be expected to have a material adverse change, in the condition, financial or otherwise, or in the earnings, properties, or business of the Company and its subsidiaries, considered as one enterprise, whether or not arising in the ordinary course of business (a “Material Adverse Effect”), (B) there have been no liabilities or obligations incurred, direct or contingent, nor 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, (C) there has not been any material change in the capital stock of the Company or any of its Significant Subsidiaries (as defined below) (other than transfers or issuances of capital stock in the ordinary course of business pursuant to the Company’s employee benefit plans or repurchases of common stock by the Company pursuant to a share repurchase program disclosed in the Prospectus) or any material increase in the long term indebtedness of the Company or its Significant Subsidiaries, and (D) except for regular quarterly dividends on the trust preferred securities issued by subsidiaries of the Company (the “trust preferred securities”), there has been no dividend or distribution of any kind declared, paid or made by the Company on any class of its capital stock (each of clauses (A), (B), (C) and (D), a “Material Adverse Change”).

(viii)    Internal Accounting Controls. The Company and its subsidiaries maintain a system of internal accounting controls sufficient to provide reasonable assurance that (A) transactions are executed in accordance with the 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 the 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. The Company’s internal control over financial reporting is effective, and the Company is not aware of any material weaknesses in its internal control. Since the date of the Company’s latest audited financial statements incorporated by reference in the Registration Statement, the General Disclosure Package, and the Prospectus, there has been 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.

(ix)    Disclosure Controls. The Company has established and maintains disclosure controls and procedures (as such term is defined in Rule 13a-15(e) and 15d-15(e) under the 1934 Act). Such disclosure controls and procedures (A) are designed to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to the Company’s Chief Executive Officer and its Chief Financial Officer by others within those entities, and (B) are effective to perform the functions for which they were established. The Company’s auditors and the Audit Committee of the Board of Directors have not been advised that there is (1) any fraud, whether or not material, that involves management or other employees who have a role in the Company’s internal controls, or (2) any material weaknesses in internal controls. Since the date of the most recent evaluation of such disclosure controls and procedures, there have

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been no significant changes in internal controls or in other factors that could significantly affect internal controls, including any corrective actions with regard to material weaknesses. The principal executive officer (or the equivalents) and principal financial officer (or the equivalent) of the Company have made all certifications required by the Sarbanes-Oxley Act, and the statements made in each such certification are accurate; the Company, its subsidiaries and to the Company’s knowledge, its directors and officers, are each in compliance in all material respects with the applicable provisions of the Sarbanes-Oxley Act.

(x)    Regulatory Matters. The Company and its subsidiaries are in compliance in all material respects with all laws administered by and regulations of any Governmental Entity (as defined herein) applicable to it or to them (including, without limitation, all regulations and orders of, or agreements with, the Texas Department of Savings and Mortgage Lending, the Federal Deposit Insurance Corporation, the Board of Governors of the Federal Reserve System and the Office of Foreign Assets Control, the Equal Credit Opportunity Act, the Fair Housing Act, the Community Reinvestment Act, the Home Mortgage Disclosure Act, all other applicable fair lending laws or other laws relating to discrimination and the Bank Secrecy Act and Title III of the U.S.A. Patriot Act), the failure to comply with which would have a Material Adverse Effect. Except as disclosed in the Registration Statement, the General Disclosure Package and 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 Regulatory Agency (as defined below) that currently relates to or restricts in any material respect (considered on a consolidated basis) the conduct of their business or that in any manner relates to their capital adequacy, credit policies or management in any material respect (each, a “Regulatory Agreement”), nor has the Company or any of its subsidiaries been advised by any Regulatory Agency that it is considering issuing or requesting any such Regulatory Agreement. There is no unresolved violation, criticism or exception by any Regulatory Agency with respect to any report or statement relating to any examinations of the Company or any of its subsidiaries which, in the reasonable judgment of the Company, is expected to result in a Material Adverse Effect. As used herein, the term “Regulatory Agency” means any federal or state agency charged with the supervision or regulation of depositary institutions, or holding companies of depositary institutions, or engaged in the insurance of depositary institution deposits, or any court, administrative agency or commission or other Governmental Entity, authority or instrumentality having supervisory or regulatory authority with respect to the Company or any of its subsidiaries.

(xi)    Regulatory Compliance. The deposit accounts of TBK Bank, SSB (the “Bank”) are insured up to the applicable limits by the Deposit Insurance Fund of the Federal Deposit Insurance Corporation (the “FDIC”) to the fullest extent permitted by law and the rules and regulations of the FDIC, and no proceeding for the revocation or termination of such insurance has been instituted or is pending or, to the knowledge of the Company, is threatened or contemplated.

(xii)    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 Texas and has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the General Disclosure Package and the Prospectus, and to enter into and perform its obligations under this Agreement, and to issue the Securities. 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.

(xiii)    Corporate Existence of Subsidiaries. Each of the Company’s subsidiaries that is a “significant subsidiary” as defined in Rule 1-02 of Regulation S-X (each, a “Significant Subsidiary” and, collectively, the “Significant Subsidiaries”) is set forth on Schedule D and has been duly organized and is validly existing under the laws of the jurisdiction of its incorporation or organization, has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the General Disclosure Package and the Prospectus and is duly qualified as a foreign corporation to transact

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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. The Bank is a state savings bank chartered under the laws of the State of Texas and its charter is in full force and effect. With respect to each Significant Subsidiary of the Company, except as otherwise disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, all of the issued and outstanding shares of capital stock of such Significant Subsidiary have been duly authorized and validly issued, are fully paid and non-assessable and, except for the trust preferred securities, are 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 Significant Subsidiary were issued in violation of any preemptive or similar rights of any security holder of such Significant Subsidiary.

(xiv)    Authorization of Agreement. This Agreement has been duly authorized, executed and delivered by the Company. When duly executed by the Underwriters, this Agreement will constitute a valid and legally binding agreement of the Company, enforceable against the Company in accordance with its terms, except as may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors’ rights generally or by general principles of equity (regardless of whether enforcement is considered in a proceeding in equity or at law), and subject to 12 U.S.C. § 1818(b)(6)(D) (or any successor statute) and similar bank regulatory powers and to the application of principles of public policy, and except as rights to indemnity or contribution, including but not limited to, indemnification provisions set forth in Section 6 of this Agreement, may be limited by federal or state securities law and the public policy underlying such laws.

(xv)    Authorization of Deposit Agreement. The Deposit Agreement has been duly authorized by the Company and, at the Closing Date, will have been duly executed and delivered and will constitute a valid and legally binding agreement of the Company, enforceable against the Company in accordance with its terms, except as may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors’ rights generally or by general principles of equity (regardless of whether enforcement is considered in a proceeding in equity or at law), and subject to 12 U.S.C. § 1818(b)(6)(D) (or any successor statute) and similar bank regulatory powers and to the application of principles of public policy, and except as rights to indemnity or contribution, may be limited by federal or state securities law and the public policy underlying such laws.

(xvi)    Authorization and Description of Securities. (A) The Preferred Shares have been duly authorized and, when issued and delivered in accordance with this Agreement, will have been validly issued, fully paid and non-assessable, will conform to the description thereof contained in the General Disclosure Package and the Prospectus and will be entitled to the rights and benefits provided in the Statement of Designation; (B) the Statement of Designation has been duly authorized by the Company and sets forth the rights, powers and preferences of the Preferred Shares; (C) the statements made under the caption “Description of Preferred Stock” in the General Disclosure Package and the Prospectus, fairly and accurately describe the Preferred Shares and Statement of Designation in all material respects; (D) the Depositary Shares have been duly authorized and, when issued and delivered in accordance with this Agreement and the Deposit Agreement, will have been validly issued and will be entitled to the rights and benefits provided in the Deposit Agreement; and (E) the statements made under the caption “Description of Depositary Shares” in the General Disclosure Package and the Prospectus, fairly and accurately describe the Deposit Agreement and the Depositary Shares in all material respects. The issuance of the Securities will not be subject to any preemptive or similar rights.

(xvii)    Absence of Defaults and Non-contravention. Neither the Company nor any of its subsidiaries is in violation of its charter or bylaws, 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 or any of its 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 or any subsidiary is subject, except for such violations or defaults that would not, individually or in the aggregate, result in a Material Adverse Effect, or in violation of any U.S. or non-U.S. federal, state or local statute or law (including, without limitation, common law) or ordinance, or any judgment, decree, rule, regulation, order or

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injunction of any U.S. or non-U.S. federal, state, local or other governmental or regulatory authority, governmental or regulatory agency or body, court, arbitrator or self-regulatory organization applicable to the Company or any of its subsidiaries or any of their respective properties, assets or operations (each, a “Governmental Entity”), except for any such default or violation that would not, individually or in the aggregate, have a Material Adverse Effect. The execution, delivery and performance of this Agreement, the Deposit Agreement, the Statement of Designation, the issuance and sale of the Securities by the Company and the performance by the Company of all of its obligations under this Agreement, the Deposit Agreement, Statement of Designation and the consummation of the transactions contemplated herein, therein and in the Registration Statement, the General Disclosure Package and the Prospectus and compliance by the Company with its obligations hereunder and thereunder 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 of its subsidiaries pursuant to, (A) any indenture, mortgage, deed of trust, loan agreement, note, lease or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject, (B) the provisions of the charter, bylaws or other organizational documents of the Company or any of its subsidiaries, or (C) any statute or any order, rule or regulation of any Governmental Entity having jurisdiction over the Company or any of its subsidiaries or any of their property, assets or operations except, with respect to clauses (A) and (C), for those conflicts, breaches, defaults, Repayment Events, liens, charges or encumbrances that would not, singly or in the aggregate, result in a Material Adverse Effect. 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 of its subsidiaries.

(xviii)    Accuracy of Exhibits. There are no contracts or documents which are required to be described in the Registration Statement, the General Disclosure Package and 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.

(xix)    Absence of Labor Dispute. No labor dispute with the employees of the Company or any of its subsidiaries 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 the Company or any of its subsidiaries, which, in either case, would result in a Material Adverse Effect.

(xx)    Absence of Proceedings. There is no action, suit, proceeding, inquiry or investigation before or brought by any court or Governmental Entity, domestic or foreign, now pending, or, to the knowledge of the Company, threatened, against or affecting the Company or any of its subsidiaries, which (A) is required to be disclosed in the Registration Statement or the Prospectus (other than as disclosed therein), (B) would reasonably be expected to result in a Material Adverse Effect, or (C) might materially and adversely affect the assets or operations of the Company or any of its subsidiaries or the consummation of the transactions contemplated in this Agreement, the Deposit Agreement, the Statement of Designation, or the performance by the Company of its obligations hereunder. Except as described in the Registration Statement, the Prospectus and the General Disclosure Package, there are no legal or governmental proceedings to which the Company or any of its subsidiaries is a party or of which any of their respective assets is the subject, including ordinary routine litigation incidental to the business, which would, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xxi)    Possession of Intellectual Property. The Company and its subsidiaries own or possess, or can acquire on reasonable terms, adequate patents, patent licenses, trademarks, service marks and trade names necessary to carry on their businesses as presently conducted and the Company and its subsidiaries have not received any notice of infringement of or conflict with asserted rights of others with respect to any patents, patent licenses, trademarks, service marks or trade names that, in the aggregate, if the subject of an unfavorable decision, ruling or finding, would have a Material Adverse Effect. Neither the Company nor any of its subsidiaries has infringed or is infringing on the intellectual property of a third party, and, except as are described in the Registration Statement, the General Disclosure Package and the Prospectus, neither the Company nor any of its subsidiaries has received notice of a claim by a third party to the contrary, except where such infringement would not, singly or in the aggregate, result in a Material Adverse Effect.

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(xxii)    Possession of Licenses and Permits. The Company and its subsidiaries possess such permits, licenses, approvals, consents and other authorizations (collectively, “Governmental Licenses”) issued by the appropriate Governmental Entities necessary to conduct the business now operated by them, and as described in the Registration Statement, the Prospectus and the General Disclosure Package, and have made all declarations and filings with the appropriate Governmental Entities that are necessary for the conduct of their respective businesses as described in the Registration Statement, the Prospectus and the General Disclosure Package, except where the failure so to possess such Governmental Licenses or make such declarations or filings would not, singly or in the aggregate, result in a Material Adverse Effect. The Company and its subsidiaries are in compliance with the terms and conditions of all such Governmental Licenses, except where the failure to so comply would not, singly or in the aggregate, result in 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, singly or in the aggregate, result in a Material Adverse Effect. 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.

(xxiii)    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) would not materially interfere with the use made and proposed to be made of such property by the Company or such subsidiary, or (B) would not have a Material Adverse Effect. 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 properties described in the Registration Statement, 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 such lease or sublease 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 and that, in any such case, would have a Material Adverse Effect.

(xxiv)    Absence of Manipulation. Neither the Company nor any affiliate of the Company has taken, nor will the Company or any affiliate take, directly or indirectly, any action which is designed to or which has constituted or which would be expected to cause or result in the unlawful stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Securities.

(xxv)    Absence of Further Requirements. No filing with, or consent, approval, authorization, order, license, registration, qualification or decree of or with any Governmental Entity, other than those that have been made or obtained, is necessary or required in connection with the due authorization, execution and delivery of this Agreement or for the offering, issuance, sale or delivery of the Securities, the performance by the Company of its obligations hereunder or the consummation by the Company of the transactions contemplated by this Agreement, except as may be required by the securities or Blue Sky laws of the various states and other jurisdictions.

(xxvi)    Investment Company Act. The Company is not required, and upon the issuance and sale of the Securities as herein contemplated and the application of the net proceeds therefrom as described in the Registration Statement, the General Disclosure Package and the Prospectus will not be required, to register as an “investment company” under the Investment Company Act of 1940, as amended.

(xxvii)    Environmental Laws. The Company and its subsidiaries are (A) in compliance with any and all applicable foreign, federal, state and local laws and regulations relating to the protection of human health and safety, the environment or hazardous or toxic substances or wastes, pollutants or contaminants (“Environmental Laws”), (B) have received and are in compliance with all permits, licenses or other approvals required of them under applicable Environmental Laws to conduct their respective businesses, and

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(C) have not received notice of any actual or potential liability for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, except where such non-compliance with Environmental Laws, failure to receive required permits, licenses or other approvals, or liability would not have a Material Adverse Effect.

(xxviii)    Compliance with Money Laundering Laws. Except as otherwise disclosed in all material respects in the Registration Statement, the Prospectus and the General Disclosure Package, the operations of the Company and its subsidiaries are and, to the knowledge of the Company and its subsidiaries, have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines issued, administered or enforced by any governmental agency (collectively, the “Money Laundering Laws”), and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or its subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company or its subsidiaries, threatened.

(xxix)    Compliance with OFAC. Neither the Company nor any of its subsidiaries nor, to the Company’s knowledge, any director, officer, agent, employee or controlled affiliate of the Company or any of its subsidiaries or other person acting on their behalf 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 transactions contemplated hereby, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of or business with any person, or in any country or territory, that currently is the subject to any U.S. sanctions administered by OFAC.

(xxx)    Insurance. The Company and each of its subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as are prudent and customary in the business in which they are engaged. Neither the Company nor any of its subsidiaries has been refused any insurance coverage sought or applied for. Neither the Company nor any of its subsidiaries has any reason to believe that it will not be able to renew its 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.

(xxxi)    Capitalization. The authorized and outstanding capitalization and consolidated long term debt (i.e., a maturity greater than one year) of the Company is as set forth in the Registration Statement, the General Disclosure Package and the Prospectus. There have not been any subsequent issuances of capital stock of the Company since such date. There have not been any additional long term borrowings by the Company or its consolidated subsidiaries since such date, except with respect to advances or securities sold under agreements to repurchase by the Bank in its ordinary course of business.

(xxxii)     Dividends. 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, except as described in the Registration Statement, the General Disclosure Package and the Prospectus.

(xxxiii)    Taxes. All material tax returns required to be filed by the Company or any of its subsidiaries have been timely filed, and all taxes and other assessments of a similar nature (whether imposed directly or through withholding) including any interest, additions to tax or penalties applicable thereto due or claimed to be due from such entities have been timely paid, other than those being contested in good faith and for which adequate reserves have been provided or which if not paid, would not individually or in the aggregate, result in a Material Adverse Effect.

(xxxiv)    Foreign Corrupt Practices Act. Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries, is aware of or has taken any action, directly or indirectly, that would result in a violation by such persons of the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder, and the Company and its subsidiaries have instituted and maintain policies and procedures designed to ensure continued compliance therewith.

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(xxxv)    Derivative Financial Instruments. Any and all material swaps, caps, floors, futures, forward contracts, option agreements (other than stock options issued to the Company’s employees, directors, agents or consultants) and other derivative financial instruments, contracts or arrangements, whether entered into for the account of the Company or one of its subsidiaries or for the account of a customer of the Company or one of its subsidiaries, were entered into in the ordinary course of business and in accordance with applicable laws, rules, regulations and policies of all applicable regulatory agencies and with counterparties believed by the Company to be financially responsible at the time. The Company and each of its subsidiaries have duly performed in all material respects all of their obligations thereunder to the extent that such obligations to perform have accrued, and there are no breaches, violations or defaults or allegations or assertions of such by any party thereunder which would, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

(xxxvi)    ERISA. Each of the Company, the Company’s subsidiaries and their respective “ERISA Affiliates” (as defined below) are in compliance in all material respects with all applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (collectively, “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, any of the Company’s subsidiaries or their respective ERISA Affiliates would have any liability. None of the Company, the Company’s subsidiaries or their respective ERISA Affiliates have incurred, or expect to incur, material 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”). Each “employee benefit plan” for which the Company, any of the Company’s subsidiaries or any of their respective 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, to the Company’s knowledge, 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 any of its subsidiaries, any member of any group of organizations described in Sections 414(b), (c), (m) or (o) of the Code or Section 4001(b) of ERISA of which the Company or such subsidiary is a member.

(xxxvii)    Bank Holding Company Act; Banking Regulation. The Company is duly registered as a bank holding company under the Bank Holding Company Act of 1956, as amended (the “BHC Act”), and the Company has duly elected to be a financial holding company under the BHC Act. The Bank holds the requisite authority to do business as a validly existing state savings bank chartered under the laws of the State of Texas.

(xxxviii)    Certain Transactions. Neither the Company nor any of its subsidiaries has participated in any listed transaction, as defined in Treasury Regulation Section 1.6011-(4)(b)(2).

(xxxix)    Unlawful Payments. None of the Company, any of the Company’s subsidiaries or, to the knowledge of the Company, any affiliate 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; or (C) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment.

(xl)    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.

(xli)    No Unauthorized Dissemination of Materials. Neither the Company nor any of the Company’s subsidiaries or other affiliates has distributed or prior to the completion of the distribution of the Securities, will 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 General Disclosure Package, the Prospectus or other materials, if any, permitted by the 1933 Act or by the 1933 Act Regulations and approved by the Representative in accordance with Section 3(k) hereof.

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(xlii)    Transactions. Except as disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, 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.

(xliii)    Broker 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 of the Company’s subsidiaries any brokerage or finder’s fee or commission as a result of the transactions contemplated by this Agreement.

(xliv)    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.

(xlv)    Off-Balance Sheet Transactions. There is no transaction, arrangement or other relationship between the Company or any of its Subsidiaries and an unconsolidated or other off-balance sheet entity which is required to be disclosed in the Registration Statement, the General Disclosure Package and the Prospectus (other than as disclosed therein).

(xlvi)    Cybersecurity. (A) There has been no security breach or incident, unauthorized access or disclosure, or other compromise of or relating to any of the Company’s or its Subsidiaries’ information technology and computer systems, networks, hardware, software, data and databases, including the data and information of their respective customers, employees, suppliers, vendors and any third party data maintained, processed or stored by the Company and its Subsidiaries, and any such data processed or stored by third parties on behalf of the Company and its Subsidiaries, equipment or technology (collectively, “IT Systems and Data”) that would, singly or in the aggregate, reasonably be expected to have a Material Adverse Effect; and (B) neither the Company nor its Subsidiaries have been notified in writing of any security breach or incident, unauthorized access or disclosure or other compromise to their IT Systems and Data that would, singly or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xlvii)    Compliance with the Sarbanes-Oxley Act. The Company is in compliance 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.

(b) Officer’s Certificates. Any certificate signed by any officer of the Company 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 on the date of such certificate.

SECTION 2. Sale and Delivery to Underwriters; Closing.

(a) Firm Shares. On the basis of the representations and warranties herein contained and subject to the terms and conditions set forth herein, the Company agrees to sell to each of the Underwriters and the Underwriters agree, severally and not jointly, to purchase from the Company, at the price per share of $24.75 for shares sold to officers and directors of the Company and $24.2125 for shares sold to all others (the “Purchase Price”), the respective number of Firm Shares set forth in Schedule A opposite its name, plus any additional number of Firm Shares which such Underwriter may become obligated to purchase pursuant to the provisions of Section 10 hereof, 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 Shares. In addition, on the basis of the representations and warranties herein contained and subject to the terms and conditions set forth herein, the Company hereby grants an option to the Underwriters, severally and not jointly, to purchase up to 270,000 Option Shares at the Purchase Price. The option hereby granted may be

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exercised in whole or in part from time to time through the 30th day after the date of this Agreement, upon notice by the Representative to the Company setting forth the number of Option Shares as to which the several Underwriters are then exercising the option and the time and date of payment and delivery for such Option Shares. Any such time and date of delivery (each, a “Date of Delivery”) shall be determined by the Representative in the notice of exercise, but shall not be later than seven full business days after the exercise of said option, nor in any event prior to the later of one business day after delivery of written notice or the Closing Date, as hereinafter defined. If the option is exercised as to all or any portion of the Option Shares, each of the Underwriters, acting severally and not jointly, will purchase that proportion of the total number of Option Shares then being purchased which the number of Firm Shares set forth in Schedule A opposite the name of such Underwriter bears to the total number of Firm Shares, subject, in each case, to such adjustments as the Representative in its sole discretion shall make to eliminate any sales or purchases of fractional shares.

(c) Payment and Delivery. Payment for the Firm Shares shall be made to the Company in Federal or other funds immediately available in New York City against delivery of such Firm Shares for the respective accounts of the several Underwriters at 10:00 a.m., New York City time, on June 19, 2020, or at such other time on the same or such other date as the Company and the Representatives may agree upon in writing. The time and date of such payment are hereinafter referred to as the “Closing Date.”

Payment for any Option Shares shall be made to the Company in Federal or other funds immediately available in New York City against delivery of such Option Shares for the respective accounts of the several Underwriters at 10:00 a.m., New York City time, on the date specified in the corresponding notice described in Section 2(b) or at such other time on the same or on such other date, in any event not later than ten business days after the date of such notice, as may be designated in writing by you.

The Firm Shares and Option Shares shall be registered in such names and in such denominations as you shall request in writing not later than one full business day prior to the Closing Date or the applicable Date of Delivery, as the case may be. The Firm Shares and Option Shares shall be delivered to you on the Closing Date or an Date of Delivery, as the case may be, for the respective accounts of the several Underwriters, with any transfer taxes payable in connection with the transfer of the Securities to the Underwriters duly paid, against payment of the Purchase Price therefor.

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

(a)    Compliance with Securities Regulations and Commission Requests. The Company will notify the Representative promptly, and confirm the notice in writing, (i) when any post-effective amendment to the Registration Statement or a new registration statement relating to the Securities shall become effective, or any amendment or supplement to the Prospectus or any amended Prospectus shall have been filed, (ii) of the receipt of any comments with respect to the Registration Statement from the Commission, (iii) of any request by the Commission for any amendment to the Registration Statement or the filing of a new registration statement or any amendment or supplement to the Prospectus or any document incorporated therein by reference or otherwise deemed to be a part thereof or for additional information, (iv) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or such new registration statement or of any order of any Governmental Entity 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. With respect to the Securities, subject to Section 3(e), the Company will comply with the requirements of Rule 430B, will prepare the Prospectus in the form approved by the Representative, will affect the filings required under Rule 424(b) in the manner and within the time period specified therein (without reliance on Rule 424(b)(8)) and will take such steps as it deems necessary to ascertain promptly whether the Prospectus transmitted for filing under Rule 424(b) under the 1933 Act Regulations was received for filing by the Commission and, in the event that it was not, it will promptly file such Prospectus. The Company will use its commercially reasonable efforts to prevent the issuance of any stop order or other order and, if any stop order or other order is issued, to obtain the lifting thereof as soon as possible. The Company shall pay

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the required filing fees of the Commission relating to the Securities within the time required by Rule 456(b)(1)(i) of the 1933 Act Regulations without regard to the proviso therein and otherwise in accordance with Rules 456(b) and 457(r) of the 1933 Act Regulations.

(b)    Delivery of Registration Statements. The Company has furnished or will deliver to the Representative and counsel for the Underwriters, without charge, copies of the signed Registration Statement as originally filed and of each amendment thereto (including exhibits filed therewith or incorporated by reference therein and documents incorporated by reference therein) and copies of all signed 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.

(c)    Delivery of Prospectuses. The Company has delivered to each Underwriter, without charge, as many copies of each preliminary prospectus and the Statutory 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, such number of copies of the Prospectus (as amended or supplemented) as such Underwriter may reasonably request. The preliminary prospectus, the Statutory Prospectus, 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.

(d)    Continued Compliance with Securities Laws. The Company will comply with the 1933 Act, the 1933 Act Regulations, the 1934 Act, the 1934 Act Regulations, as applicable, so as to permit the completion of the distribution of the Securities as contemplated in this Agreement and in the Prospectus. Prior to the Closing Date, the Company will immediately notify the Representative, and confirm such notice in writing, of (x) any filing made by the Company of information relating to the offering of the Securities with any securities exchange or any other regulatory body in the United States, and (y) any event or condition that results or is reasonably likely to result in a Material Adverse Change, which (i) makes any statement in the Prospectus false or misleading, or (ii) which is not disclosed 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 or development occurs as a result of which it is necessary, in the reasonable opinion of the Company or its counsel to amend or supplement the Prospectus in order that the Prospectus not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in light of the circumstances existing at the time it is delivered to purchasers, or if for any other reason it shall be necessary, in the reasonable opinion of the Company or its counsel, during such period to amend the Registration Statement or to file a new registration statement or to amend or supplement the Prospectus to comply with the 1933 Act or the 1933 Act Regulations, the Company promptly will (1) notify the Representative of any such event or development, (2) prepare and file with the Commission, subject to Section 3(e) hereof, such amendment, supplement or new registration statement which will correct such untrue statement or omission, effect such compliance or satisfy such filing requirement, (3) use its best efforts to have any such amendment to the Registration Statement or new registration statement declared effective as soon as possible (if not an automatic shelf registration statement), and (4) supply any amended or supplemented General Disclosure Package or Prospectus to the Underwriters in such quantities as they may reasonably request. If at any time following the issuance of an Issuer-Represented Free Writing Prospectus there occurred or occurs an event or development as a result of which the General Disclosure Package or such Issuer-Represented Free Writing Prospectus, individually or together with other information that is part of the General Disclosure Package, as the case may be, conflicted or would conflict with the information contained in the Registration Statement (or any other registration statement relating to the Securities), any preliminary prospectus, the Statutory Prospectus or the Prospectus or included, includes or would include an untrue statement of a material fact or omitted, omits 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 will promptly notify the Underwriters and will promptly amend or supplement, at its own expense, the General Disclosure Package or such Issuer-Represented Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission. The Underwriters’ delivery of any such amendment or supplement shall not constitute a waiver of any of the conditions of Section 5 hereof.

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(e)    Amendment to Prospectus or Registration Statement. Prior to the Closing Date, the Company will advise the Representative promptly of any notice of its intention to file or prepare any amendment to the Registration Statement or a new registration statement relating to the Securities or any amendment or supplement to any preliminary prospectus or the Prospectus and will furnish the Representative with copies thereof 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 with respect to the Securities without the consent of the Representative, which consent shall not be unreasonably withheld. Neither the consent of the Representative, nor the Representative’s delivery of any such amendment or supplement, shall constitute a waiver of any of the conditions set forth in Section 5 hereof. For purposes of clarity, nothing in this Section 3(e) shall restrict the Company from making any filings required in order to comply with its reporting obligations under the 1934 Act or the 1934 Act Regulations.

(f)    DTC. The Company will cooperate with the Underwriters and use its commercially reasonable efforts to permit the Securities to be eligible for clearance, settlement and trading through the facilities of The Depository Trust Company (“DTC”).

(g)    Blue Sky Compliance. The Company will qualify the Securities for offer and sale under the state securities, or blue sky, laws of such jurisdictions as the Representative shall reasonably request and will continue such qualifications in effect so long as required for the offering and resale of the Securities; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any jurisdiction in which it is not so qualified, (ii) file any general consent to service of process in any such jurisdiction, or (iii) subject itself to taxation in any jurisdiction in which it is not otherwise so subject.

(h)    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 security holders 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.

(i)    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 Registration Statement, the General Disclosure Package and the Prospectus.

(j)    Restriction on Sale of Securities. Until the Closing Date, the Company will not, without the prior written consent of the Underwriters, directly or indirectly, issue, sell, offer or contract to sell, grant any option for the sale of, or otherwise transfer or dispose of, any debt securities or nonconvertible preferred stock, including any guarantee of such securities, or any securities convertible into or exchangeable for or representing the right to receive such securities, other than the Securities (except for the issuance of the Securities issued pursuant to this Agreement).

(k)    Issuer-Free Writing Prospectus. The Company represents and agrees that, unless it obtains the prior written consent of the Representative and each Underwriter represents and agrees that, unless it obtains the prior written 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, if any, consented to by the Company and the Representative is referred to herein 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.

Subject to the consent of the Representative required in the immediately preceding paragraph, the Company will prepare a final term sheet relating solely to the final pricing terms of the Securities (the “Final Term Sheet”) and will file the Final Term Sheet in the form attached as Schedule C within the period required by Rule 433(d)(5)(ii) on the date such final terms have been established for such Securities. The Final Term Sheet is an Issuer-Permitted Free Writing Prospectus for purposes of this Agreement. Notwithstanding anything to the contrary contained herein, the Company consents to the use by any Underwriter of a free writing prospectus that

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contains only (a) (i) information describing the preliminary terms of the Securities generally or the Securities specifically or their offering, or (ii) information that describes the final terms of the Securities or their offering and that is or is to be included in the Final Term Sheet, or (b) other customary information that is not “issuer information,” as defined in Rule 433.

(l)    Reporting Requirements. The Company, during the period when a prospectus is required to be delivered under the 1933 Act (including in circumstances where such requirement may be satisfied, with the prior consent of the Representative, by Rule 172 under the 1933 Act Regulations), 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.

(m)    Taxes. The Company will indemnify and hold harmless the Underwriters against any documentary, stamp, issue or similar tax, including any interest and penalties, on the creation, issue and sale of the Securities and on the execution and delivery of this Agreement. All payments to be made by the Company hereunder shall be made without withholding or deduction for or on account of any present or future taxes, duties or governmental charges whatsoever unless the Company is compelled by law to deduct or withhold such taxes, duties or charges. In that event, the Company shall pay such additional amounts as may be necessary in order that the net amounts received after such withholding or deduction shall equal the amounts that would have been received if no withholding or deduction had been made.

(n)    Listing. The Company will use its reasonable best efforts to obtain authorization for listing of the Depositary Shares on the NASDAQ Global Select Market no later than the 30th day succeeding the Closing Date.

(o)    Restriction on Sale of Shares. During a period of thirty days from the date of the Prospectus, the Company agrees to not, without the prior written consent of the Representative, (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 Preferred Shares or Depositary Shares, any securities that are substantially similar to the Preferred Shares or the Depositary Shares, or any securities convertible into or exercisable or exchangeable for Preferred Shares, Depositary Shares or substantially similar securities, 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 Preferred Shares or Depositary Shares, whether any such swap or transaction described in clause (i) or (ii) above is to be settled by delivery of Preferred Shares or Depositary Shares or such other securities, in cash or otherwise.

SECTION 4. Payment of Expenses.

(a)    Expenses. The Company will pay all expenses incident to the performance of its obligations under this Agreement and the Deposit 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 and the cost of obtaining all securities and bank regulatory approvals, (ii) the preparation, printing and delivery to the Underwriters of copies of each preliminary prospectus, the Statutory Prospectus, any Issuer-Permitted Free Writing Prospectus and the Prospectus and any amendments or supplements thereto, (iii) the preparation, issuance and delivery of the certificates for the Securities, (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(g) hereof, (vi) the fees and expenses of the depositary, (vii) the costs and expenses of the Company and the Representative 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 by the Company or the Representative in connection with the road show presentations, travel and lodging expenses of the Representative and officers of the Company and any such consultants, and the cost of aircraft and other transportation chartered in connection with the road show, (viii) any fees payable in connection with the rating of the Securities, (ix) the fees and expenses incurred in connection with having the Securities eligible for clearance, settlement and trading through the facilities of DTC, (x) the cost of printing certificates representing the Securities, including the Depositary Receipts, (xi) all costs and expenses incident to listing the Depositary Shares on the NASDAQ Global Select Market, and (xii) the reasonable and documented fees and expenses of Norton Rose Fulbright US LLP,

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counsel to the Underwriters; provided, however, that the Company shall not be obligated to reimburse the Representative for (x) non-legal related expenses in excess of $5,000, or (y) legal related expenses in excess of $100,000, without the Company’s prior consent, which shall not be unreasonably withheld, delayed or conditioned.

(b)    Termination of Agreement. If this Agreement is terminated by the Representative in accordance with the provisions of Section 5 or Section 9(a)(i) hereof, the Company shall reimburse the Underwriters for all of their out-of-pocket expenses.

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 contained in Section 1 hereof or in certificates of any officer of the Company or any of its subsidiaries 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)    Filing of Prospectus. (i) Each of the preliminary prospectus, the Statutory Prospectus and the Prospectus containing the Rule 430B 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 become effective in accordance with the requirements of Rule 430B), and no order preventing or suspending the use of any preliminary prospectus, the Statutory Prospectus or the Prospectus shall have been issued by the Commission or any other Governmental Entity, (ii) the Final Term Sheet and any other material required to be filed by the Company pursuant to Rule 433(d) shall have been filed with the Commission within the applicable time periods prescribed in such filings by Rule 433, and (iii) the Registration Statement is effective and no stop order or other order referred to in Section 3(a)(iv) hereof shall have been issued and no proceeding for that purpose shall have been initiated or threatened; and all requests for additional information on the part of the Commission shall have been complied with to the Representative’s satisfaction.

(b)    Opinions of Counsel for the Company. At the Closing Date, the Representative shall have received the opinions, dated as of the Closing Date, from each of Wachtell, Lipton, Rosen & Katz, counsel for the Company, and Adam D. Nelson, Executive Vice President and General Counsel of the Company, 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 and Exhibit B hereto, respectively. Such counsel may also state that, insofar as such opinion involves factual matters, they have relied, to the extent they deem proper, upon certificates of officers of the Company and its subsidiaries and certificates of public officials.

(c)    Opinion of Counsel for the Underwriters. At the Closing Date, the Representative shall have received the opinion, dated as of the Closing Date, of Norton Rose Fulbright US LLP, counsel for the Underwriters, together with signed or reproduced copies of such letter for each of the other Underwriters with respect to such matters as the Representative may reasonably require. In giving such opinion such counsel may rely, as to all matters governed by the laws of jurisdictions other than the law of the State of New York and the federal law of the United States, upon the opinions of counsel satisfactory to the Representative. Such counsel may also state that, insofar as such opinion involves factual matters, they have relied, to the extent they deem proper, upon certificates of officers of the Company and its subsidiaries and certificates of public officials.

(d)    Officers’ Certificates. At the Closing Date, there shall not have been, since the date hereof or since the respective dates as of which information is given in the Registration Statement, the General Disclosure Package or the Prospectus, any Material Adverse Effect, and the Representative shall have received a certificate of the Chief Executive Officer, President or an Executive Vice President of the Company and of the Chief Financial Officer or Chief Accounting Officer of the Company, dated as of the Closing Date, to the effect that (i) there has been no such Material Adverse Effect, (ii) the representations and warranties in Section 1 hereof are true and correct with the same force and effect as though expressly made at and as of the Closing Date, and (iii) the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied at or prior to the Closing Date.

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(e)    Accountant’s Comfort Letters. At the time of the execution of this Agreement, the Representative shall have received from Crowe LLP 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 of the Company contained in the Registration Statement, the General Disclosure Package and the Prospectus.

(f)    Chief Financial Officer’s Certificate. At the time of the execution of this Agreement and at the Closing Date, the Representative shall have received a certificate signed by the Chief Financial Officer of the Company, in form and substance satisfactory to the Representative.

(g)    Bring-down Comfort Letter. At the Closing Date, the Representative shall have received from Crowe LLP a letter, dated as of the Closing Date, to the effect that it reaffirms the statements made in its letter furnished pursuant to subsection (e) of this Section, except that the specified date referred to shall be a date not more than three business days prior to the Closing Date.

(h)    DTC. At the Closing Date, the Securities shall be eligible for clearance, settlement and trading in book-entry-only form through the facilities of DTC.

(i)    Ratings. Subsequent to the execution of this Agreement, there shall not have occurred a downgrading in or withdrawal of the rating assigned to any securities of the Company by any “nationally recognized statistical rating organization”, as such term is defined in Section 3(a)(62) of the 1934 Act, and no such organization shall have publicly announced that it has under surveillance or review, or has changed its outlook with respect to, its rating of the Securities or any other securities of the Company (other than an announcement with positive implications of a possible upgrading).

(j)    No Legal Impediment to Issuance. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any Governmental Entity that would, as of the Closing Date, prevent the offer, issuance or sale of the Securities; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date, prevent the issuance or sale of the Securities.

(k)    No Objection. If applicable, FINRA shall have not raised any objection with respect to the fairness and reasonableness of the underwriting terms and arrangements relating to the offering of the Securities.

(l)    No Important Changes. Since the execution of this Agreement, there shall not have been any decrease in or withdrawal of the rating of any debt securities or preferred securities of the Company or any of its subsidiaries by any “nationally recognized statistical rating organization” (as defined for purposes of Section 3(a)(62) of the 1934 Act) or made any public announcement of any intended or potential decrease in or withdrawal of any such rating.

(m)    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.

(n)    Statement of Designation. On or prior to the Closing Date, the Company shall have duly filed with the Secretary of State of the State of Texas the Statement of Designation.

(o)    Payment of Structuring Fees. The Company shall have paid the Representative a structuring fee of $500,000 at Closing Date.

(p)    Additional Documents. At the Closing Date and at each Date of Delivery, counsel for the Underwriters shall have been furnished with such documents, certificates 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.

(q)    Termination of Agreement. If any condition specified in this Section shall not have been fulfilled when and as required to be fulfilled, this Agreement may be terminated by the Representative by notice to the Company at any time at or prior to the Closing Date 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, 8, 11, 12, 13, 14, 15 and 18 shall survive any such termination and remain in full force and effect.

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(r)    Conditions to Purchase of Option Shares. In the event that the Underwriters exercise their option provided in Section 2(b) hereof to purchase all or any portion of the Option Shares, the representations and warranties of the Company contained herein and the statements in any certificates furnished by the Company and 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 Chief Executive Officer, President or an Executive Vice President of the Company and of the Chief Financial Officer or Chief Accounting Officer of the Company confirming that the certificate delivered at the Closing Date pursuant to Section 5(d) hereof remains true and correct as of such Date of Delivery.

(ii)    Opinion of Counsel for Company. The opinions of Wachtell, Lipton, Rosen & Katz, counsel for the Company, and Adam D. Nelson, Executive Vice President and General Counsel of the Company, dated such Date of Delivery, relating to the Option Shares to be purchased on such Date of Delivery and otherwise to the same effect as the opinions required by Section 5(b) hereof.

(iii)    Opinion of Counsel for Underwriters. The opinion of Norton Rose Fulbright US LLP, counsel for the Underwriters, dated such Date of Delivery, relating to the Option Shares 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 Crowe LLP, in form and substance reasonably 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(e) hereof, except that the “specified date” in the letter furnished pursuant to this paragraph shall be a date not more than three business days prior to such Date of Delivery.

(v)    Certificate of Chief Financial Officer. A certificate executed by the Chief Financial Officer of the Company, dated as of such Date of Delivery, in form and substance satisfactory to the Representative.

SECTION 6. Indemnification.

(a)    Indemnification of Underwriters. The Company agrees to indemnify and hold harmless each Underwriter, its partners, officers and directors, its affiliates, as such term is defined under Rule 405 (each, an “Affiliate”), 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 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 430B Information, if any, 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 contained in any preliminary prospectus, the Statutory Prospectus, any Issuer-Represented Free Writing Prospectus, the General Disclosure Package, the Prospectus or any roadshow that does not constitute an Issuer-Represented Free Writing 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, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any Governmental Entity, commenced or threatened, or of any claim whatsoever, in each case based upon any such untrue statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section 6(d) below) any such settlement is effected with the written consent of the Company; and

(iii) against any and all expense whatsoever, as incurred (including the fees and disbursements of counsel chosen by the Representative), reasonably incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any Governmental Entity, commenced or threatened, or any claim whatsoever, in each case based upon any such untrue statement or omission, or any such alleged untrue statement or omission, to the extent that any such expense is not paid under (i) or (ii) above;

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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 the Registration Statement (or any amendment thereto), including the Rule 430B Information, if any, or any preliminary prospectus, the Statutory 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 the Underwriter Information.

(b)    Indemnification of Company, Directors and Officers. Each Underwriter severally and not jointly 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 430B Information, if any, or in any preliminary prospectus, the Statutory 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 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 the Representative, 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 Entity, 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.

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 the Underwriters, on the other hand, in connection with the statements or omissions 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 and the total commission received by the Underwriters bears to the aggregate initial offering price of the Securities.

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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.

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 Entity, commenced or threatened, or any claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission.

The Underwriters’ respective obligations to contribute pursuant to this Section 7 are several in proportion to the aggregate principal amount of Securities to be purchased set forth opposite their respective names in Schedule A hereto and not joint.

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 such Securities were sold by it to its investors exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of 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 directors, officers, 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.

SECTION 8. Representations, Warranties and Agreements to Survive. 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 (a) any investigation made by or on behalf of any Underwriter, its Affiliates or selling agents or any person controlling such Underwriter or by or on behalf of the Company, its officers or directors or any person controlling the Company, and (b) 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 the Closing Date, (i) if there has been, since the respective dates as of which information is given in the Registration Statement, the General Disclosure Package or the Prospectus, any material adverse change in the financial condition, earnings, or business affairs of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business, (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, in each case the effect of which is

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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, (iii) if trading in any securities of the Company has been suspended or materially limited by the Commission or the Nasdaq Global Market, or if trading generally on the Nasdaq Global Market 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, the Financial Industry Regulatory Authority, Inc. or any other Governmental Entity, (iv) a material disruption has occurred in commercial banking or securities or clearance, settlement or trading services in the United States, or (v) if a banking moratorium has been declared by federal, New York or Texas 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, 8, 11, 12, 13, 14, 15 and 18 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 the Closing Date, 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 total number of the Securities to be purchased at the Closing 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 total number of the Securities to be purchased at the Closing Date, this Agreement 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, either the Representative or the Company shall have the right to postpone the Closing Date, for a period not exceeding seven days in order to effect any required changes in the Registration Statement, the General Disclosure Package 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. 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 care of B. Riley FBR, Inc. at 299 Park Ave, 21st Floor, New York, NY 10171, attention of General Counsel, e-mail: legal@brileyfin.com, and with a copy, which shall not constitute notice, to Norton Rose Fulbright US LLP, 2200 Ross Avenue, Suite 3600, Dallas, Texas 75201-7932, attention of Michael G. Keeley, Esq.; and notices to the Company shall be directed to it at its principal executive offices located at 12700 Park Central Drive, Suite 1700, Dallas, Texas 75251, attention of Adam D. Nelson, Executive Vice President and General Counsel, email: ANelson@tbkbank.com, and with a copy, which shall not constitute notice, to Wachtell, Lipton, Rosen & Katz, 51 West 52^nd Street, New York, New York 10019-6150, attention of Mark F. Veblen, Esq., email: mfveblen@wlrk.com.

In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the Underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company, which information may include the name and address of their respective clients, as well as other information that will allow the Underwriters to properly identify their respective clients.

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SECTION 12. 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 Affiliates, selling agents, officers and directors and controlling persons 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 13. No Fiduciaries. The Company acknowledges and agrees that (a) the purchase and sale of the Securities pursuant to this Agreement is an arm’s length commercial transaction between the Company, on the one hand, and the Underwriters, on the other hand, (b) 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, any of the Company’s subsidiaries, any stockholders, creditors or employees of the Company or any of its subsidiaries or any other third party, (c) no Underwriter has assumed or will assume an advisory or fiduciary responsibility in favor of the Company or any of its subsidiaries 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 or any of its subsidiaries on other matters), and no Underwriter has any obligation to the Company or any of its subsidiaries with respect to the offering contemplated hereby except the obligations expressly set forth in this Agreement, (d) 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 its subsidiaries, and (e) 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 14. GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, INCLUDING, WITHOUT LIMITATION, SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW, WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS THAT WOULD RESULT IN THE APPLICATION OF LAWS OTHER THAN THE LAWS OF THE STATE OF NEW YORK.

SECTION 15. Jurisdiction; Waiver of Jury Trial; Venue. The Company and each Underwriter hereby expressly and irrevocably (a) submits to the non-exclusive jurisdiction of the federal and state courts sitting in the Borough of Manhattan in the City of New York in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby, and (b) waives (i) its right to a trial by jury in any legal action or proceeding relating to this Agreement, the transactions contemplated hereby or any course of conduct, course of dealing, statements (whether verbal or written) or actions of the Underwriters and for any counterclaim related to any of the foregoing, and (ii) any objection which it may have or hereafter may have to the laying of venue of any such litigation brought in any such court referred to above and any claim that any such litigation has been brought in an inconvenient forum.

SECTION 16. TIME. TIME SHALL BE OF THE ESSENCE OF THIS AGREEMENT. EXCEPT AS OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

SECTION 17. Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together constitute one and the same Agreement. 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.

SECTION 18. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

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SECTION 19. 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 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.

[Signature Page Follows]

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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 valid and legally binding agreement between the Underwriters and the Company in accordance with its terms.

[Signature Page to Underwriting Agreement]

CONFIRMED AND ACCEPTED,

as of the date first above written:

B. RILEY FBR, INC.

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

[Signature Page to Underwriting Agreement]

SCHEDULE B

Issuer-Represented Free Writing Prospectus

1. Investor Presentation filed with the Commission on June 16, 2020.

SCHEDULE C

Form of Final Term Sheet

[Attached]

Issuer Free Writing Prospectus

Filed Pursuant to Rule 433

Registration Statement No. 333-237663

June 16, 2020

Triumph Bancorp, Inc.

Depositary Shares, Each Representing a 1/40th Interest in a Share of

7.125% Series C Fixed Rate Non-Cumulative Perpetual Preferred Stock

The Depositary Shares are not deposits or obligations of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation or by any other government agency or instrumentality.

The Issuer has filed a registration statement (including a preliminary prospectus supplement and an accompanying prospectus) with the Securities and Exchange Commission (the “SEC”) for the offering to which this communication relates. Before you invest, you should read the preliminary prospectus supplement, the final prospectus supplement (when available) and the accompanying prospectus in that registration statement and other documents the Issuer has filed with the SEC for more complete information about the Issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC’s website at www.sec.gov. Alternatively, you may obtain a copy of the prospectus by contacting B. Riley FBR, Inc. at (703) 312-9580 or by emailing prospectuses@brileyfbr.com.

Any disclaimer or other notice that may appear below is not applicable to this communication and should be disregarded. Such disclaimer or notice was automatically generated as a result of this communication being sent by Bloomberg or another email system.

SCHEDULE D

Significant Subsidiaries

TBK Bank, SSB

Advance Business Capital LLC (d/b/a Triumph Business Capital, LLC)