424B2

We are offering 3,000,000 shares of our common stock to be sold in this offering.

Our common stock is traded on the Nasdaq Global Select Market under the symbol “TCBI.” On November 28, 2016, the closing sale price of our common stock was $73.15 per share, as reported on the Nasdaq Global Select Market. You are urged to obtain current market prices for our common stock.

Investing in our common stock involves risks. You should carefully read this prospectus supplement, the accompanying prospectus, our periodic reports and other information we file with the Securities and Exchange Commission and “Risk Factors” beginning on page S-4 of this prospectus supplement and on page 4 of the accompanying prospectus before making a decision to purchase our common stock.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus supplement. Any representation to the contrary is a criminal offense.

The shares of our common stock are not savings accounts, deposits or other obligations of our Bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency or instrumentality.

The underwriters have agreed to purchase shares of our common stock at a price of $68.65 per share, which will result in us receiving approximately $205.6 million of proceeds after estimated expenses, or $236.5 million if the underwriters exercise their option to purchase additional shares in full. The underwriters propose to offer the shares from time to time for sale in negotiated transactions or otherwise, at market prices on the Nasdaq Global Select Market prevailing at the time of sale, at prices related to such prevailing market prices or otherwise. See “Underwriting.”

The underwriters have the option to purchase up to an additional 450,000 shares of common stock, at the price per share set forth above, for 30 days after the date of this prospectus. The underwriters expect to deliver the shares to purchasers in book-entry form only, through the facilities of The Depository Trust Company, against payment on or about December 2, 2016.

You should rely only on the information contained in this prospectus supplement and the accompanying prospectus. We have not, and the underwriters have not, authorized any other person to provide you with information that is different from that contained in this prospectus supplement or the accompanying prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. We are not making an offer of these securities in any jurisdiction where the offer is not permitted. You should assume that the information appearing in this prospectus supplement and the accompanying prospectus is accurate only as of their respective dates. Our business, financial condition and results of operations may have changed since those dates. This prospectus supplement supersedes the accompanying prospectus to the extent it contains information that is different from or in addition to the information in that prospectus.

This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering and certain other matters and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus. The second part, the accompanying prospectus, gives more general information about us and the common stock offered hereby. Generally, when we refer to the prospectus, we are referring to both parts of this document combined. To the extent the description of this offering in the prospectus supplement differs from the description of our common stock in the accompanying prospectus or any document incorporated by reference filed prior to the date of this prospectus supplement, you should rely on the information in this prospectus supplement.

We are offering to sell, and seeking offers to buy, shares of our common stock only in jurisdictions where offers and sales are permitted. The distribution of this prospectus and the offering of the common stock in certain jurisdictions may be restricted by law. Persons outside the United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the offering of the common stock and the distribution of this prospectus outside the United States. This prospectus does not constitute, and may not be used in connection with, an offer to sell, or a solicitation of an offer to buy, any common stock offered by this prospectus by any person in any jurisdiction in which it is unlawful for such person to make such an offer or solicitation.

It is important for you to read and consider all information contained in this prospectus supplement and the accompanying prospectus, including the documents incorporated by reference therein, in making your investment decision.

In this prospectus supplement, TCBI, we, our and us or the Company refer to Texas Capital Bancshares, Inc., which is a financial holding company headquartered in Dallas, Texas, and its subsidiaries on a consolidated basis, unless the context otherwise requires. References to Texas Capital Bank or the Bank refer to Texas Capital Bank, National Association, which is our principal banking subsidiary.

We file annual, quarterly and current reports, proxy statements and other information with the Securities and Exchange Commission, or the SEC. You may read and copy any document we file at the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information about the public reference room. The SEC also maintains an Internet website at http://www.sec.gov that contains reports, proxy statements and other information electronically filed by issuers. Texas Capital Bancshares, Inc.’s Internet address is http://www.texascapitalbank.com. The information on, or that can be accessible through, our website is not a part of this document.

In this prospectus supplement, as permitted by law, we “incorporate by reference” information from other documents that we file with the SEC. This means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be a part of this prospectus supplement and should be read with the same care. When we update the information contained in documents that have been incorporated by reference by making future filings with the SEC, the information incorporated by reference in this prospectus supplement is considered to be automatically updated and superseded. In other words, in case of a conflict or inconsistency between information contained in this prospectus supplement and information incorporated by reference into this prospectus supplement, you should rely on the information contained in the document that was filed later.

We incorporate by reference the documents listed below and any documents we file with the SEC in the future under Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, between the date of this document and the date of the termination of the offer being made pursuant to this prospectus supplement (other than information that, under the Exchange Act and SEC rules, is deemed to be “furnished” and not filed with the SEC):

You may request a copy of any of these filings, other than an exhibit to a filing unless that exhibit is specifically incorporated by reference into that filing, at no cost, by writing to or telephoning us at the following address:

Other than any documents expressly incorporated by reference, the information on our website and any other website, including the SEC’s website, that is referred to in this prospectus supplement is not part of this prospectus supplement.

This prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein contain statements that are considered “forward-looking statements” within the meaning of United States federal securities laws. In addition, we or our management may make other written or oral communications from time to time that contain forward-looking statements. Forward-looking statements may also be contained in our future filings with SEC, in press releases and in oral and written statements made by us or with our approval that are not statements of historical fact. These forward-looking statements are based on our beliefs, assumptions and expectations of our future performance taking into account all information currently available to us. Words such as “believes,” “expects,” “estimates,” “anticipates,” “plans,” “goals,” “objectives,” “expects,” “intends,” “seeks,” “likely,” “targeted,” “continue,” “remain,” “will,” “should,” “may” and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements. Forward-looking statements may include, among other things, statements about the credit quality of our loan portfolio, economic conditions, including the continued impact on our customers from declines and volatility in oil and gas prices, expectations regarding rates of default or loan losses, volatility in the mortgage industry, our business strategies and our expectations about future financial performance, future growth and earnings, the appropriateness of our allowance for loan losses and provision for loan losses, the impact of increased regulatory requirements on our business, increased competition, interest rate risk, new lines of business, new product or service offerings and new technologies.

Forward-looking statements are subject to various risks and uncertainties, which change over time, are based on management’s expectations and assumptions at the time the statements are made and are not guarantees of future results. Important factors that could cause actual results to differ materially from the forward-looking statements include, but are not limited to, the following:

the date hereof and should not be relied upon as representing our expectations or beliefs as of any date subsequent to the date of this prospectus supplement. Except as required by law, we undertake no obligation to revise any forward-looking statements contained in this prospectus supplement, whether as a result of new information, future events or otherwise. The factors discussed herein are not intended to be a complete summary of all risks and uncertainties that may affect our businesses. Though we strive to monitor and mitigate risk, we cannot anticipate all potential economic, operational and financial developments that may adversely impact our operations and our financial results. Forward-looking statements should not be viewed as predictions and should not be the primary basis upon which investors evaluate an investment in our common stock.

PROSPECTUS SUPPLEMENT SUMMARY

This summary highlights selected information contained elsewhere or incorporated by reference in this prospectus supplement and does not contain all the information that you need to consider in making your investment decision. You should carefully read this entire prospectus supplement and the accompanying prospectus, as well as the information to which we refer you and the information incorporated by reference herein, before deciding whether to invest in our common stock.

The Company

The Company is a Delaware corporation organized in 1996 and the parent of Texas Capital Bank. The Company is a registered bank holding company and a financial holding company.

The Bank is headquartered in Dallas, with primary banking offices in Austin, Dallas, Fort Worth, Houston and San Antonio, the five largest metropolitan areas of Texas. All of our business activities are conducted through the Bank. We have focused on organic growth, maintenance of credit quality and recruiting and retaining experienced bankers with strong personal and professional relationships in their communities.

We serve the needs of commercial businesses and successful professionals and entrepreneurs located in Texas as well as operate several lines of business serving a regional or national clientele of commercial borrowers. We are primarily a secured lender, with a majority of our loans being made to businesses headquartered or with operations in Texas. At the same time, our national lines of business continue to provide specialized lending products to businesses throughout the United States. We have benefitted from the success of our business model since inception, producing strong loan growth and favorable loss experience amidst a challenging environment for banking nationally.

The Texas Market

The Texas market for banking services is highly competitive. Texas’ largest banking organizations are headquartered outside of Texas and are controlled by out-of-state organizations. We also compete with other providers of financial services, such as savings and loan associations, credit unions, consumer finance companies, securities firms, insurance companies, commercial finance and leasing companies, full service brokerage firms and discount brokerage firms. We believe that many middle market companies and successful professionals and entrepreneurs are interested in banking with a company headquartered in, and with decision-making authority based in, Texas and with established Texas bankers who have the expertise to act as trusted advisors to customers with regard to their banking needs.

Our banking centers in our target markets are served by experienced bankers with lending expertise in the specific industries found in their market areas and established community ties. We believe our Bank can offer customers more responsive and personalized service than our competitors. If we provide effective service to these customers, we believe we will be able to establish long-term relationships and provide multiple products to our customers, thereby enhancing our profitability.

National Lines of Business

While the Texas market continues to be central to the growth and success of our company, we have developed several lines of business, including our mortgage finance, mortgage correspondent aggregation, homebuilder finance, insurance premium finance and lender finance lines of business, that offer specialized loan and deposit products to businesses regionally and throughout the country. We believe this helps us mitigate our geographic concentration risk in Texas.

In the third quarter of 2015, we launched a correspondent lending program, mortgage correspondent aggregation, or MCA, to complement our mortgage finance warehouse lending program. Through our MCA program we commit to purchase residential mortgage loans from independent correspondent lenders and deliver those loans into the secondary market via whole loan sales to independent third parties or in securitization transactions to government sponsored enterprises such as Fannie Mae, Freddie Mac and Ginnie Mae.

Business Strategy

Drawing on the business and community ties of our management and their banking experience, our strategy is to continue building an independent bank that focuses primarily on middle market business customers and successful professionals and entrepreneurs in each of the five major metropolitan markets of Texas as well as our national lines of business. To achieve this, we seek to implement the following strategies:

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Targeting middle market businesses and successful professionals and entrepreneurs;

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Growing our loan and deposit base in our existing markets by hiring additional experienced bankers in our different lines of business;

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Continuing our emphasis on credit policy to maintain credit quality consistent with long-term objectives;

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Leveraging our existing infrastructure to support a larger volume of business;

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Maintaining stringent internal approval processes for capital and operating expenditures;

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Continuing our extensive use of outsourcing to provide cost-effective operational support with service levels consistent with large-bank operations; and

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Extending our reach within our target markets and lines of business through service innovation and service excellence.

Our principal executive offices are located at 2000 McKinney Avenue, Suite 700, Dallas, Texas 75201 and our telephone number is (214) 932-6600. Our Internet address is http://www.texascapitalbank.com. The reference to our website address does not constitute incorporation by reference of the information contained on the website, which should not be considered part of this prospectus.

Energy Portfolio

Our outstanding energy loan portfolio represented 6% of total loans, or $1.1 billion, as of September 30, 2016. Our provision for credit losses increased in the third quarter of 2016, due primarily to credit deterioration of our energy loans resulting from sustained volatility in oil and gas prices. We reported an allocated reserve of $65.1 million at September 30, 2016, or 6% of our energy loan portfolio. Of $7.4 million in net charge-offs in the third quarter of 2016, $1.8 million were energy related. Non-accruals in the energy portfolio increased to $150.0 million at September 30, 2016 compared to $127.1 million at June 30, 2016. Total criticized energy loan balances at September 30, 2016 as a percent of total loans held for investment increased to 25% from 22% at June 30, 2016. Our unfunded commitments totaled approximately 45% of our outstanding energy portfolio at September 30, 2016, an increase reflecting new commitments. Less than $20 million of unfunded commitments relate to criticized loans. We continue to proactively manage our energy portfolio and overall credit quality, and believe we are appropriately reserved against further energy-related losses.

Risk Factors

An investment in our common stock involves certain risks. You should carefully consider the risks described under “Risk Factors” beginning on page S-4 of this prospectus supplement, in the “Risk Factors” section of the accompanying prospectus, and in our Annual Report on Form 10-K filed on February 18, 2016, as well as other information included or incorporated by reference into this prospectus supplement and the accompanying prospectus, including our financial statements and the notes thereto, before making an investment decision.

The Offering

Common stock offered by us, excluding the underwriters’ option to purchase additional shares

3,000,000 shares, par value $0.01 per share

Underwriters’ option

450,000 shares

Common stock outstanding prior to this offering

46,009,495 shares(1)

Common stock outstanding after this offering, excluding the underwriters’ option to purchase additional shares

49,009,495 shares(1)

Use of proceeds

We intend to use the net proceeds of this offering to provide capital support for the growth of Texas Capital Bank and for other general corporate purposes.

Nasdaq Global Select Market symbol

TCBI

(1)

Based on the number of shares outstanding as of September 30, 2016, excluding 177,613 outstanding stock appreciation rights, 389,329 outstanding restricted stock units and outstanding warrants to purchase 581,500 shares of common stock. See footnote 12—Stock-Based Compensation and Employee Benefits to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 for a description of our benefit plans providing for issuance of common stock.

Unless otherwise stated, the shares presented in this prospectus assume no exercise of the underwriters’ option to purchase additional shares.

You should carefully consider the risks described below before deciding to invest in shares of our common stock. The risks and uncertainties described below are not the only ones facing us. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations. If any of the following risks actually occurs, our business, financial condition or results of operations could be materially adversely affected. In that case, the trading price of our common stock could decline substantially, and you may lose all or part of your investment.

You should carefully consider the risks described in the “Risk Factors” section of the accompanying prospectus, and in our Annual Report on Form 10-K filed on February 18, 2016, as well as other information included or incorporated by reference into this prospectus supplement and the accompanying prospectus, including our financial statements and the notes thereto.

Our stock price can be volatile. Stock price volatility may make it more difficult for you to resell your common stock at prices you find attractive at the time you would like to sell. Our stock price can fluctuate significantly in response to a variety of factors including, among other things:

General market fluctuations, industry factors and general economic and political conditions and events, such as economic slowdowns or recessions, interest rate changes or credit loss trends, could also cause our stock price to decrease regardless of operating results as evidenced by the recent volatility and disruption of capital and credit markets.

The trading volume in our common stock is less than that of other larger financial services companies, and a significant amount of our common stock is held by institutional investors. Although our common stock is traded on the Nasdaq Global Select Market, the trading volume in our common stock is less than that of other larger financial services companies. Given the lower trading volume of our common stock, significant sales of our common stock, or the expectation of these sales, could cause our stock price to fall. In addition, a substantial majority of common stock outstanding is held by institutional shareholders, and trading activity involving large positions may increase volatility of the stock price. Concentration of ownership by institutional investors and inability to execute trades covering large numbers of shares can increase volatility of the price of our stock. Changes in the general economic outlook or perspectives on our business or prospects by our institutional investors, whether factual or speculative, can have a major impact on our stock price.

An investment in our common stock is not an insured deposit. Our common stock is not a bank deposit and, therefore, is not insured against loss by the Federal Deposit Insurance Corporation, any other deposit insurance fund or by any other public or private entity. Investment in our common stock is subject to the risks described in the “Risk Factors” section herein and in our Annual Report on Form 10-K and is subject to the same market forces that affect the price of securities of any company. As a result, if you purchase our common stock you may lose some or all of your investment.

The holders of our indebtedness and preferred stock have rights that are senior to those of our common shareholders. As of September 30, 2016, we had outstanding $286.0 million in subordinated notes, $113.4 million in junior subordinated notes that are held by statutory trusts which issued trust preferred securities to investors and $20.0 million under our revolving, non-amortizing line of credit (maximum availability of $130.0 million) which matures on December 21, 2016. Payments of the principal and interest on the trust preferred securities are conditionally guaranteed by us to the extent not paid by each trust, provided the trust has funds available for such obligations.

Our subordinated notes and junior subordinated notes are senior to our shares of common stock in right of payment of dividends and other distributions. In the event of our bankruptcy, dissolution or liquidation, the holders of our indebtedness must be satisfied before any distributions can be made to our common shareholders. If certain conditions are met, we have the right to defer interest payments on the junior subordinated debentures (and the related trust preferred securities) at any time or from time to time for a period not to exceed 20 consecutive quarters in a deferral period, during which time no dividends may be paid to holders of our common stock.

At September 30, 2016, we had issued and outstanding 6,000,000 shares of our 6.50% Non-Cumulative Perpetual Preferred Stock, Series A, having an aggregate liquidation preference of $150.0 million. Our preferred stock is senior to our shares of common stock in right of payment of dividends and other distributions. We must be current on dividends payable to holders of preferred stock before any dividends can be paid on our common stock. In the event of our bankruptcy, dissolution or liquidation, the holders of our preferred stock must be satisfied before any distributions can be made to our common shareholders.

We do not currently pay dividends on our common stock. We have not paid dividends on our common stock and we do not expect to do so for the foreseeable future. Our ability to pay dividends is limited by regulatory restrictions and the need to maintain sufficient consolidated capital. The ability of the Bank to pay dividends to us is limited by its obligation to maintain sufficient capital and by other regulatory restrictions.

Restrictions on Ownership. The ability of a third party to acquire us is limited under applicable U.S. banking laws and regulations. The Bank Holding Company Act of 1956, as amended, or the BHC Act, requires any bank holding company (as defined therein) to obtain the approval of the Board of Governors of the Federal Reserve prior to acquiring, directly or indirectly, more than 5% of our outstanding common stock. Any “company” (as defined in the BHC Act) other than a bank holding company would be required to obtain Federal Reserve approval before acquiring “control” of us. “Control” generally means (i) the ownership or control of 25% or more of a class of voting securities, (ii) the ability to elect a majority of the directors or (iii) the ability otherwise to exercise a controlling influence over management and policies. A holder of 25% or more of our outstanding common stock, other than an individual, is subject to regulation and supervision as a bank holding company under the BHC Act. In addition, under the Change in Bank Control Act of 1978, as amended, and the Federal Reserve’s regulations thereunder, any person, either individually or acting through or in concert with one or more persons, is required to provide notice to the Federal Reserve prior to acquiring, directly or indirectly, 10% or more of our outstanding common stock.

Anti-takeover provisions of our certificate of incorporation, bylaws and Delaware law may make it more difficult to receive a change in control premium. Certain provisions of our certificate of incorporation and bylaws could make a merger, tender offer or proxy contest more difficult, even if such events were perceived by many of our stockholders as beneficial to their interests. These provisions are more fully described in our Registration Statement on Form 10, as amended, which was filed with the SEC on August 24, 2000, as amended by Item 8.01 of our Current Report on Form 8-K which was filed with the SEC on May 21, 2015, which are incorporated by reference into this prospectus. These provisions include advance notice for nominations of directors and stockholders’ proposals, and authority to issue “blank check” preferred stock with such designations, rights and preferences as may be determined from time to time by our board of directors. In addition, as a Delaware corporation, we are subject to Section 203 of the Delaware General Corporation Law which, in general, prevents an interested stockholder, defined generally as a person owning 15% or more of a corporation’s outstanding voting stock, from engaging in a business combination with our company for three years following the date that person became an interested stockholder unless certain specified conditions are satisfied.

The net proceeds, after estimated expenses, to us from the sale of the common stock offered hereby will be approximately $205.6 million or $236.5 million if the underwriters exercise their option to purchase additional shares in full. We intend to use the net proceeds of this offering to provide capital support for the growth of Texas Capital Bank and for other general corporate purposes.

The following table should be read in conjunction with the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and notes thereto, in each case, that are included in the documents that are incorporated by reference into this prospectus.

No cash dividends have ever been paid by us on our common stock, and we do not anticipate paying any cash dividends on our common stock in the foreseeable future. Our principal source of funds to pay cash dividends on our common stock would be cash dividends from our Bank. The payment of dividends on our common stock and by our Bank is subject to certain restrictions imposed by federal banking laws, regulations and authorities.

The following table presents the range of high and low sale prices reported on the Nasdaq Global Select Market for the periods shown below:

As of September 30, 2016, there were 202 holders of record of our common stock and approximately 46,009,495 shares of our common stock outstanding. On November 28, 2016, the closing sale price for our common stock was $73.15 per share, as reported on the Nasdaq Global Select Market.

The following is a brief description of our common stock. This summary does not purport to be complete in all respects. This description is subject to and qualified in its entirety by reference to our certificate of incorporation, as amended, copies of which have been filed with the SEC and are also available upon request from us.

We have 100,000,000 shares of authorized common stock, $0.01 par value per share, of which 46,009,495 shares were outstanding as of September 30, 2016. Under our certificate of incorporation, as amended, we have authority to issue up to 10,000,000 shares of preferred stock, par value $0.01 per share, of which 6,000,000 shares of our 6.50% Non-Cumulative Perpetual Preferred Stock, Series A, or the Preferred Stock, having an aggregate liquidation preference of $150 million, were issued and outstanding as of the date hereof.

Each holder of our common stock is entitled to one vote for each share held on all matters with respect to which the holders of our common stock are entitled to vote. Holders of our common stock are not entitled to cumulative voting in the election of directors.

In the event of dissolution or liquidation, after payment of all creditors and payment of liquidation preferences on preferred stock, the holders of our common stock (subject to the prior rights of the holders of any outstanding preferred stock) will be entitled to receive pro rata any assets distributable to stockholders in respect of the number of shares held by them, in accordance with the Delaware General Corporation Law, or the DGCL.

The holders of shares of our common stock are entitled to such dividends as our board of directors, in its discretion, may declare out of funds legally available therefor, subject to certain limitations under the DGCL. We have not paid dividends on our common stock to date, and we do not anticipate paying dividends in the near future. However, the payment of dividends on our common stock is subject to the prior rights of the holders of any preferred stock. Payment of dividends on our common stock will be dependent upon, among other things, our earnings and financial condition, our cash flow requirements and the prevailing economic and regulatory climate.

Our common stock has no preemptive or conversion rights and is not subject to redemption.

Anti-Takeover Provisions. Certain provisions of our certificate of incorporation and bylaws could make a merger, tender offer or proxy contest more difficult, even if such events were perceived by many of our stockholders as beneficial to their interests. These provisions are more fully described in our Registration Statement on Form 10, as amended, which was filed with the SEC on August 24, 2000, as amended by Item 8.01 of our Current Report on Form 8-K which was filed with the SEC on May 21, 2015, which are incorporated by reference into this prospectus. These provisions include advance notice for nominations of directors and stockholders’ proposals, and authority to issue “blank check” preferred stock with such designations, rights and preferences as may be determined from time to time by our board of directors. In addition, as a Delaware corporation, we are subject to Section 203 of the Delaware General Corporation Law which, in general, prevents an interested stockholder, defined generally as a person owning 15% or more of a corporation’s outstanding voting stock, from engaging in a business combination with our company for three years following the date that person became an interested stockholder unless certain specified conditions are satisfied.

Restrictions on Ownership. The ability of a third party to acquire us is limited under applicable U.S. banking laws and regulations. The BHC Act requires any bank holding company (as defined therein) to obtain the approval of the Board of Governors of the Federal Reserve prior to acquiring, directly or indirectly, more

than 5% of our outstanding common stock. Any “company” (as defined in the BHC Act) other than a bank holding company would be required to obtain Federal Reserve approval before acquiring “control” of us. “Control” generally means (i) the ownership or control of 25% or more of a class of voting securities, (ii) the ability to elect a majority of the directors or (iii) the ability otherwise to exercise a controlling influence over management and policies. A holder of 25% or more of our outstanding common stock, other than an individual, is subject to regulation and supervision as a bank holding company under the BHC Act. In addition, under the Change in Bank Control Act of 1978, as amended, and the Federal Reserve’s regulations thereunder, any person, either individually or acting through or in concert with one or more persons, is required to provide notice to the Federal Reserve prior to acquiring, directly or indirectly, 10% or more of our outstanding common stock.

Listing. Our common stock is listed on the Nasdaq Global Select Market under the symbol “TCBI.”

Transfer Agent and Registrar. The transfer agent and registrar for our common stock is Computershare, Inc.

Our board of directors may from time to time authorize the issuance of one or more classes or series of preferred stock without stockholder approval. Subject to the provisions of our certificate of incorporation and limitations prescribed by law and the rules of the Nasdaq Global Select Market, if applicable, our board of directors is authorized to adopt resolutions to issue shares, establish the number of shares, change the number of shares constituting any series, and provide or change the voting powers, designations, preferences and relative rights, qualifications, limitations or restrictions on shares of our preferred stock, including dividend rights, terms of redemption, conversion rights and liquidation preferences, in each case without any action or vote by our stockholders.

Holders of Preferred Stock do not have voting rights, except with respect to authorizing or increasing the authorized amount of senior stock, certain changes in the terms of the Preferred Stock, the right to elect two directors upon nonpayment of dividends for six or more quarterly dividend periods and as otherwise required by applicable law. The Preferred Stock ranks senior to our common stock as to the payment of dividends and distribution of assets upon our liquidation, dissolution or winding-up.

During any dividend period, so long as any share of Preferred Stock remains outstanding and except as otherwise provided below, (i) no dividend may be paid, declared or set apart for any payment on and no distribution shall be made on our common stock (other than a dividend payable solely in stock that ranks junior to the Preferred Stock with respect to the payment of dividends and the distribution of assets upon our liquidation, dissolution or winding-up) and (ii) no shares of common stock may be purchased, redeemed or otherwise acquired for consideration by us, directly or indirectly, unless full dividends on all outstanding shares of the Preferred Stock for the most recently completed quarterly dividend period have been declared and paid in full (or have been declared and a sum sufficient for the payment thereof has been set apart for such payment) and any prior redemption requirements with respect to shares of the Preferred Stock have been complied with.

A dividend period for the Preferred Stock is the period from and including a dividend payment date to but excluding the next dividend payment date.

The limitations on dividends and other distributions described in the paragraph above do not apply to:

Subject to the restrictions described above, and not otherwise, dividends (payable in cash, stock, or otherwise), as may be determined by our board of directors or a duly authorized committee of the board, may be declared and paid on our common stock and other stock ranking equally with or junior to the Preferred Stock from time to time out of any assets legally available for such payment in amounts permitted by applicable regulatory authorities, and the holders of the Preferred Stock will not be entitled to participate in those dividends.

So long as any shares of Preferred Stock are outstanding, the vote or consent of the holders of at least 66 2/3% of the then-outstanding shares of Preferred Stock, voting separately as a single class, shall be necessary for effecting or validating:

The foregoing provisions will not apply if, at or prior to the time when any such vote or consent would otherwise be required, all outstanding shares of Preferred Stock have been redeemed or have been called for redemption upon proper notice, and sufficient funds have been set aside for such redemption.

MATERIAL U.S. FEDERAL INCOME AND ESTATE TAX CONSEQUENCES TO NON-U.S. HOLDERS

The following is a general discussion of material U.S. federal income and estate tax consequences of the acquisition, ownership and disposition of our common stock by a non-U.S. holder (as defined below) who acquires our common stock in this offering. This discussion is limited to non-U.S. holders who hold our common stock as a capital asset within the meaning of Section 1221 of the Internal Revenue Code of 1986, as amended, or the Code. This discussion is based upon the Code, the U.S. Federal Income Tax Regulations promulgated thereunder, and judicial decisions and administrative pronouncements of the Internal Revenue Service, or the IRS, all as in effect on the date hereof and all of which are subject to change or differing interpretation, possibly with retroactive effect, which could affect the tax consequences described herein. No rulings have been or will be sought from the IRS with respect to the matters discussed below, and there can be no assurance that the IRS will not take a different position regarding the tax consequences of a non-U.S. holder’s acquisition, ownership or disposition of our common stock or that any such position would not be sustained by a court.

This discussion does not address all aspects of U.S. federal income and estate taxation that may be applicable to investors in light of their particular circumstances, and does not address any state, local, foreign or other U.S. federal tax consequences (such as U.S. gift tax consequences). Furthermore, this discussion does not consider all U.S. federal income tax consequences that may be relevant to investors subject to special treatment under U.S. federal income tax laws, such as U.S. expatriates, banks and other financial institutions, insurance companies, tax-exempt organizations, dealers in securities or currencies, “controlled foreign corporations,” “passive foreign investment companies,” and shareholders of such corporations, partnerships or other pass-through entities (or investors therein), holders who acquired our common stock pursuant to the exercise of employee stock options or otherwise as compensation and persons that hold common stock as part of a straddle, hedge, conversion transaction, or other integrated investment. Furthermore, this discussion does not address U.S. federal estate and gift tax laws (except as specifically addressed herein with respect to U.S. federal estate taxes), any other U.S. federal income tax consequences (such as the Medicare contribution tax or the alternative minimum tax) or any aspects of state, local, or foreign tax laws.

For purposes of this discussion, you are a “non-U.S. holder” if you are a beneficial owner of our common stock that, for U.S. federal income tax purposes, is not:

If a partnership (including any entity or arrangement treated as a partnership for U.S. federal income tax purposes) owns our common stock, the U.S. federal income tax treatment of a partner in the partnership generally will depend upon the status of the partner and the activities of the partnership. Partners in a partnership that owns common stock should consult their independent tax advisors as to the particular U.S. federal income tax consequences to them of the acquisition, ownership and disposition of our common stock.

If you are considering buying our common stock, you should consult your own tax advisor about current and possible future U.S. federal income and estate tax consequences of purchasing, owning and disposing of our

common stock in your particular situation, as well as tax consequences arising under any state, local or foreign tax laws, any other U.S. federal tax laws, and any applicable tax treaty.

We do not plan to make any distributions for the foreseeable future. However, in the event we do make a distribution on our common stock, such payments will constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Any distribution not constituting a dividend will be treated as first reducing a non-U.S. holder’s adjusted tax basis in their common stock (determined on a share by share basis), but not below zero, and to the extent it exceeds the adjusted basis in the non-U.S. holder’s shares of common stock, will then will be treated as gain from the sale of the common stock (subject to the rules discussed below under “—Gain on Disposition of Common Stock”).

Any dividends paid to you as a non-U.S. holder of common stock that are not “effectively connected” with your trade or business in the United States (as described below) generally are subject to withholding of U.S. federal income tax at a 30% rate on the gross amount (or if you are eligible for the benefits of an income tax treaty and certain certification requirements are satisfied, at the lower rate specified in the treaty). A non-U.S. holder that is eligible for a reduced rate of U.S. federal withholding tax under a tax treaty may establish its entitlement to the benefit of a reduced rate of withholding under such tax treaty by timely providing us or our paying agent with a valid IRS Form W-8BEN or Form W-8BEN-E (or other applicable form) certifying qualification for the reduced rate. Special certification and other requirements apply to certain non-U.S. holders that are pass-through entities rather than corporations or individuals. A non-U.S. holder eligible for a reduced rate of U.S. federal withholding tax under a tax treaty may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for a refund together with the required information with the IRS. You should consult your independent tax advisors regarding your entitlement to benefits under a relevant income tax treaty.

Any dividends paid to a non-U.S. holder that are “effectively connected” with its conduct of a trade or business within the United States (and if a treaty applies, are attributable to a U.S. permanent establishment) are exempt from such U.S. withholding tax if the non-U.S. holder timely provides us or our paying agent with a valid IRS Form W-8ECI (or successor form) properly certifying such exemption and containing the non-U.S. holder’s taxpayer identification number. Such “effectively connected” dividends, although not subject to U.S. withholding tax, will be subject to U.S. federal income tax on a net income basis at the same graduated rates generally applicable to U.S. persons, subject to any applicable tax treaty providing otherwise. In addition, if such non-U.S. holder is treated as a corporation for U.S. federal income tax purposes, any “effectively connected” dividends that it receives may, under certain circumstances, be subject to an additional “branch profits tax” at a 30% rate (or at a lower rate if specified by an applicable tax treaty).

Subject to the discussion below regarding backup withholding and FATCA, a non-U.S. holder generally will not be subject to U.S. federal income tax on gain that it realizes on a sale or other disposition of our common stock unless:

“Effectively connected” gains described in the first bullet point above are taxed at regular graduated U.S. federal income tax rates in the same manner as if the non-U.S. holder was a resident of the United States, unless an applicable income tax treaty provides otherwise. For a corporate non-U.S. holder, such “effectively connected” gains may also, under certain circumstances, be subject to an additional “branch profits tax” at a 30% rate (or at a lower rate if specified under an applicable tax treaty).

Gains described in the second bullet point above (which may be offset by U.S.-source capital losses) will generally be subject to a flat 30% tax on the gain derived from such disposition (or at a lower rate if specified under an applicable tax treaty).

With respect to the third bullet point above, we believe we are not, and we do not anticipate becoming, a “United States real property holding corporation” for U.S. federal income tax purposes.

We must report annually to the IRS and to each non-U.S. holder the amount of dividends paid to such holder and the tax withheld with respect to such dividends, regardless of whether withholding was required. Copies of the information returns reporting such dividends and withholding may also be made available to the tax authorities in the country in which the non-U.S. holder resides under the provisions of an applicable income tax treaty.

A non-U.S. holder will be subject to backup withholding for dividends paid to such holder unless such holder furnishes to us or our paying agent the required certification as to its non-U.S. status (typically, by providing a valid IRS Form W-8BEN, W-8BEN-E or W-8ECI), or such holder otherwise establishes an exemption.

Information reporting and, depending on the circumstances, backup withholding will apply to the proceeds of a sale of our common stock within the United States or conducted through certain United States-related financial intermediaries, unless the beneficial owner certifies under penalty of perjury that it is a non-U.S. holder (and the payor does not have actual knowledge or reason to know that the beneficial owner is a U.S. person), or such owner otherwise establishes an exemption.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit against a non-U.S. holder’s U.S. federal income tax liability provided the required information is timely furnished to the IRS.

Shares of our common stock owned (or deemed to be held) by an individual who is not a citizen or resident of the United States (as specially defined for U.S. federal estate tax purposes) at the time of death generally will be treated as U.S. situs property and included in such person’s gross estate for U.S. federal estate tax purposes, unless an applicable estate tax treaty provides otherwise, and thus may be subject to U.S. federal estate tax.

Under Sections 1471 through 1474 of the Code and the final Federal Income Tax Regulations and the administrative guidance promulgated thereunder, collectively, the Foreign Account Tax Compliance Act, or FATCA, a U.S. withholding agent may be required to withhold 30% of any dividends paid after June 30, 2014 and the gross proceeds of a sale of our common stock paid after December 31, 2018 to a foreign entity (whether such foreign entity is the beneficial owner or an intermediary) unless such foreign entity agrees to comply with certain certification, reporting and withholding obligations (which may include entering into an agreement with

the IRS), or otherwise satisfies the requirements of an applicable FATCA intergovernmental agreement. If a dividend payment is both subject to withholding under FATCA and subject to the withholding tax discussed above under “—Dividends and Distributions,” the withholding under FATCA may be credited against, and therefore reduce, such other withholding tax. Non-U.S. holders should contact their own tax advisors regarding the particular consequences to them of the application of FATCA.

PROSPECTIVE INVESTORS SHOULD CONSULT THEIR INDEPENDENT TAX ADVISORS REGARDING THE PARTICULAR U.S. FEDERAL INCOME TAX CONSEQUENCES TO THEM OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF OUR COMMON STOCK, AS WELL AS ANY TAX CONSEQUENCES ARISING UNDER ANY STATE, LOCAL OR FOREIGN TAX LAWS, ANY APPLICABLE INCOME TAX TREATIES, OR ANY OTHER U.S. FEDERAL TAX LAWS (INCLUDING ESTATE AND GIFT TAX LAWS).

The following is a summary of certain considerations associated with the purchase of the offered securities by employee benefit plans that are subject to Title I of the Employee Retirement Income Security Act of 1974, as amended, or ERISA; Keogh plans, individual retirement accounts and other plans or arrangements that are subject to Section 4975 of the Code; persons who are fiduciaries with respect to such plans or arrangements; or provisions under any federal, state, local, non-U.S. or other laws or regulations that are similar to such provisions of the Code or ERISA (collectively referred to as Similar Laws); and entities (including certain insurance company general accounts) whose underlying assets are considered to include “plan assets” (as defined in U.S. Department of Labor regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA) by reason of any such plan’s, account’s or arrangement’s investment therein, each referred to as a Plan.

The following summarizes certain aspects of ERISA, the Code, and Similar Laws that may affect a decision by Plans to invest in the offered securities described herein. The following discussion is general in nature and not intended to be a complete discussion of the applicable laws pertaining to a Plan’s decision to invest and is not intended to be legal advice. Fiduciaries of any Plan should consult their own legal counsel before investing in the offered securities described herein.

ERISA and the Code impose certain duties on persons who are fiduciaries of a Plan subject to Title I of ERISA or Section 4975 of the Code (referred to as an ERISA Plan) and prohibit certain transactions involving the assets of an ERISA Plan and its fiduciaries or other interested parties. Under ERISA and the Code, any person who exercises any discretionary authority or control over the management or administration of such an ERISA Plan or the management or disposition of the assets of such an ERISA Plan, or who renders investment advice for a fee or other compensation, direct or indirect, to such a Plan, or has any authority or responsibility to do so, is generally considered to be a fiduciary of the ERISA Plan.

In considering an investment in the offered securities of a portion of the assets of any Plan, a fiduciary should determine whether the investment is in accordance with the documents and instruments governing the Plan and the applicable provisions of ERISA, the Code or any Similar Law relating to a fiduciary’s duties to the Plan including, without limitation, the exclusive benefit rule and the prudence, diversification, delegation of control and prohibited transaction provisions of ERISA, the Code and any other applicable Similar Laws. In considering whether investment in the offered securities is prudent for ERISA purposes, a Plan fiduciary should consider all relevant facts and circumstances, including the limitations imposed on transferability, whether the investment provides sufficient liquidity in light of the foreseeable needs of the Plan, the tax consequences of the investment, and whether the investment is reasonably designed, as part of the Plan’s portfolio, to further the Plan’s purposes, taking into consideration the risk of loss and opportunity for gain association with the offered securities.

Section 406 of ERISA and Section 4975 of the Code prohibit ERISA Plans from engaging in specified transactions involving “plan assets” with persons who are “parties in interest” under ERISA or “disqualified persons” under the Code with respect to such ERISA Plans, unless an exemption is available under applicable law or issued by the U.S. Department of Labor, or DOL. A violation of these prohibited transaction rules may result in an excise tax or other liabilities under ERISA and/or Section 4975 of the Code for such parties in interest, disqualified persons, or fiduciaries, unless exemptive relief is available under an applicable statutory or administrative exemption.

The acquisition and/or holding of the offered securities by an ERISA Plan with respect to which the Company or the underwriter is considered a party in interest or a disqualified person may constitute or result in a direct or indirect prohibited transaction under Section 406 of ERISA and/or Section 4975 of the Code, unless the

investment is acquired and is held in accordance with an applicable statutory, class or individual prohibited transaction exemption. In this regard, the DOL has issued prohibited transaction class exemptions, or “PTCEs,” that may apply to the acquisition and holding of the offered securities. These class exemptions include, without limitation, PTCE 84-14 respecting transactions determined by independent qualified professional asset managers, PTCE 90-1 respecting insurance company pooled separate accounts, PTCE 91-38 respecting bank collective investment funds, PTCE 95-60 respecting life insurance company general accounts and PTCE 96-23 respecting transactions determined by in-house asset managers. In addition, Section 408(b)(17) of ERISA and Section 4975(d)(20) of the Code provide relief from the prohibited transaction provisions of ERISA and Section 4975 of the Code for certain transactions, provided that neither the issuer of the securities nor any of its affiliates (directly or indirectly) have or exercise any discretionary authority or control or render any investment advice with respect to the assets of any ERISA Plan involved in the transaction and provided further that the ERISA Plan pays no more, and receives no less, than adequate consideration in connection with the transaction. There can be no assurance that all of the conditions of any such exemptions will be satisfied or that these statutory or class exemptions will be available with respect to a transaction involving the offered securities or with respect to any particular Plan.

A fiduciary of any such Plan, account, or arrangement must determine that the purchase and holding of an interest in the offered securities is consistent with its fiduciary duties and will not constitute or result in a non-exempt prohibited transaction under Section 406 of ERISA or Section 4975 of the Code, or a violation under any applicable Similar Laws. The offered securities should not be purchased or held by any person investing “plan assets” of any Plan, unless such purchase and holding will not constitute or result in (i) a non-exempt prohibited transaction under ERISA and the Code or similar violation of any applicable Similar Laws, (ii) an impermissible or imprudent investment, or (iii) a breach of fiduciary duty or applicable law. Each purchaser or holder of the offered securities will have exclusive responsibility for ensuring that its purchase, holding, and subsequent disposition of the offered securities does not violate ERISA, the Code, or any Similar Law. Nothing herein shall be construed as a representation that an investment in the offered securities would meet any or all of the relevant legal requirements with respect to investments by, or that investment in the offered securities is appropriate for, ERISA Plans or other plans and arrangements.

We are offering the shares of common stock described in this prospectus supplement through a number of underwriters. Merrill Lynch, Pierce, Fenner & Smith Incorporated, J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC are acting as joint book-running managers of the offering and as representatives of the underwriters. We have entered into an underwriting agreement with the underwriters. Subject to the terms and conditions of the underwriting agreement, we have agreed to sell to the underwriters, and each underwriter has severally agreed to purchase, the number of shares of common stock indicated in the table below.

The underwriters are committed to take and pay for all of the shares of common stock being offered, if any are taken. However, the underwriters are not required to take or pay for the shares covered by the underwriters’ option to purchase additional shares described below.

We have granted to the underwriters an option, exercisable for 30 days from the date of this prospectus supplement, to purchase up to 450,000 additional shares of common stock from us. To the extent the option is exercised, the underwriters will become obligated, subject to certain conditions, to purchase such additional shares.

The underwriters have agreed to purchase the common stock at a price of $68.65 per share, which will result in net proceeds to us, after deducting estimated expenses related to this offering, of approximately $205.6 million or $236.5 million if the underwriters exercise their option to purchase additional shares in full. The underwriters propose to offer the shares from time to time for sale in negotiated transactions or otherwise, at market prices on the Nasdaq Global Select Market prevailing at the time of sale, at prices related to such prevailing market prices or otherwise. In connection with the sale of the shares offered hereby, the underwriters may be deemed to have received compensation in the form of underwriting discounts. The underwriters may effect such transactions by selling shares to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or purchasers of shares for whom they may act as agents or to whom they may sell as principal. The underwriters may also receive from purchasers of the shares normal brokerage commissions in amounts agreed with such purchasers.

We estimate that the total expenses of this offering, including registration, filing and listing fees, printing fees and legal and accounting expenses will be approximately $355,000.

A prospectus supplement in electronic format may be made available on the web sites maintained by one or more underwriters, or selling group members, if any, participating in the offering. The underwriters may agree to allocate a number of shares to underwriters and selling group members for sale to their online brokerage account holders. Internet distributions will be allocated by the representatives to underwriters and selling group members that may make Internet distributions on the same basis as other allocations.

We and all of our executive officers and directors have agreed that for a period of 90 days, in the case of TCBI, and 60 days, in the case of such officers and directors, from the date of this prospectus supplement, we and they will not, without the prior written consent of the representatives, dispose of or hedge any shares of our

common stock or any securities convertible into or exercisable or exchangeable for our common stock. The restrictions described in this paragraph are subject to certain limited exceptions, including with respect to:

The representatives may release any of the securities subject to these lock-up agreements at any time without notice.

We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act of 1933.

Our common stock is traded on the Nasdaq Global Select Market under the symbol “TCBI.”

In connection with the offering, the underwriters may purchase and sell common stock in the open market. Purchases and sales in the open market may include short sales, purchases to cover short positions and stabilizing purchases.

The underwriters have advised us that, pursuant to Regulation M of the Securities Act of 1933, they may also engage in other activities that stabilize, maintain or otherwise affect the price of the common stock, including the imposition of penalty bids. This means that if the representatives of the underwriters purchase common stock in the open market in stabilizing transactions or to cover short sales, the representatives can require the underwriters that sold those shares as part of this offering to repay the underwriting discount deemed to be received by them.

These activities may have the effect of raising or maintaining the market price of the common stock or preventing or retarding a decline in the market price of the common stock, and, as a result, the price of the common stock may be higher than the price that otherwise might exist in the open market. If the underwriters commence these activities, they may discontinue them at any time. The underwriters may carry out these transactions on the Nasdaq Global Select Market, in the over-the-counter market or otherwise.

In addition, in connection with this offering certain of the underwriters (and selling group members) may engage in passive market making transactions in our common stock on the Nasdaq Global Select Market prior to the pricing and completion of this offering. Passive market making consists of displaying bids on the Nasdaq Global Select Market no higher than the bid prices of independent market makers and making purchases at prices no higher than these independent bids and effected in response to order flow. Net purchases by a passive market maker on each day are generally limited to a specified percentage of the passive market maker’s average daily trading volume in the common stock during a specified period and must be discontinued when such limit is reached. Passive market making may cause the price of our common stock to be higher than the price that otherwise would exist in the open market in the absence of these transactions. If passive market making is commenced, it may be discontinued at any time.

Certain of the underwriters and their affiliates have provided in the past to us and our affiliates and may provide from time to time in the future certain commercial banking, financial advisory, investment banking and other services for us and such affiliates in the ordinary course of their business, for which they have received and may continue to receive customary fees and commissions. In addition, from time to time, certain of the underwriters and their affiliates may effect transactions for their own account or the account of customers, and hold on behalf of themselves or their customers, long or short positions in our debt or equity securities or loans, and may do so in the future.

Other than in the United States, no action has been taken by us or the underwriters that would permit a public offering of the securities offered by this prospectus supplement in any jurisdiction where action for that purpose is required. The securities offered by this prospectus supplement may not be offered or sold, directly or indirectly, nor may this prospectus supplement or any other offering material or advertisements in connection with the offer and sale of any such securities be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons into whose possession this prospectus supplement comes are advised to inform themselves about and to observe any restrictions relating to the offering and the distribution of this prospectus supplement. This prospectus supplement does not constitute an offer to sell or a solicitation of an offer to buy any securities offered by this prospectus supplement in any jurisdiction in which such an offer or a solicitation is unlawful.

In relation to each member state of the European Economic Area which has implemented the Prospectus Directive, each being referred to as a Relevant Member State, with effect from and including the date on which

the Prospectus Directive is implemented in that Relevant Member State, no offer of shares which are the subject of the offering has been, or will be made to the public in that Relevant Member State, other than under the following exemptions under the Prospectus Directive:

provided that no such offer of shares referred to in (a) to (c) above shall result in a requirement for the Company or any underwriter to publish a prospectus pursuant to Article 3 of the Prospectus Directive, or supplement a prospectus pursuant to Article 16 of the Prospectus Directive.

Each person located in a Relevant Member State to whom any offer of ordinary shares is made or who receives any communication in respect of an offer of ordinary shares, or who initially acquires any ordinary shares will be deemed to have represented, warranted, acknowledged and agreed to and with each underwriter and the Company that (1) it is a “qualified investor” within the meaning of the law in that Relevant Member State implementing Article 2(1)(e) of the Prospectus Directive; and (2) in the case of any shares acquired by it as a financial intermediary as that term is used in Article 3(2) of the Prospectus Directive, each such financial intermediary will be deemed to have represented, acknowledged and agreed that the shares acquired by it in the offer have not been acquired on a non-discretionary basis on behalf of, nor have they been acquired with a view to their offer or resale to, persons in circumstances which may give rise to an offer of any shares to the public other than their offer or resale in any Relevant Member State other than to qualified investors, as that term is defined in the Prospectus Directive, or in circumstances in which the prior consent of the underwriters has been given to the offer or resale; or where shares have been acquired by it on behalf of persons in any Relevant Member State other than qualified investors, the offer of those ordinary shares to it is not treated under the Prospectus Directive as having been made to such persons.

The Company, the underwriters and their respective affiliates will rely upon the truth and accuracy of the foregoing representations, acknowledgments and agreements.

This prospectus has been prepared on the basis that any offer of shares in any Relevant Member State will be made pursuant to an exemption under the Prospectus Directive from the requirement to publish a prospectus for offers of shares. Accordingly any person making or intending to make an offer in that Relevant Member State of shares which are the subject of the offering contemplated in this prospectus may only do so in circumstances in which no obligation arises for the Company or any of the Representatives to publish a prospectus pursuant to Article 3 of the Prospectus Directive in relation to such offer. Neither the Company nor the Representatives have authorized, nor do they authorize, the making of any offer of shares in circumstances in which an obligation arises for the Company or the Representatives to publish a prospectus for such offer.

For the purposes of this provision, the expression an “offer of ordinary shares to the public” in relation to any shares in any Relevant Member State means the communication in any form and by any means of sufficient information on the terms of the offer and the ordinary shares to be offered so as to enable an investor to decide to purchase or subscribe the ordinary shares, as the same may be varied in that Relevant Member State by any measure implementing the Prospectus Directive in that Member State, the expression “Prospectus Directive” means Directive 2003/71/EC (as amended) and includes any relevant implementing measure in each Member State.

The above selling restriction is in addition to any other selling restrictions set out below.

In addition, in the United Kingdom, this document is being distributed only to, and is directed only at, and any offer subsequently made may only be directed at persons who are “qualified investors” (as defined in the Prospectus Directive) (i) who have professional experience in matters relating to investments falling within Article 19 (5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended, or the Order, and/or (ii) who are high net worth companies (or persons to whom it may otherwise be lawfully communicated) falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as “relevant persons”). This document must not be acted on or relied on in the United Kingdom by persons who are not relevant persons. In the United Kingdom, any investment or investment activity to which this document relates is only available to, and will be engaged in with, relevant persons.

The shares may not be publicly offered in Switzerland and will not be listed on the SIX Swiss Exchange, or SIX or on any other stock exchange or regulated trading facility in Switzerland. This document has been prepared without regard to the disclosure standards for issuance prospectuses under art. 652a or art. 1156 of the Swiss Code of Obligations or the disclosure standards for listing prospectuses under art. 27 ff. of the SIX Listing Rules or the listing rules of any other stock exchange or regulated trading facility in Switzerland. Neither this document nor any other offering or marketing material relating to the shares or the offering may be publicly distributed or otherwise made publicly available in Switzerland.

Neither this document nor any other offering or marketing material relating to the offering, the Company, the shares have been or will be filed with or approved by any Swiss regulatory authority. In particular, this document will not be filed with, and the offer of shares will not be supervised by, the Swiss Financial Market Supervisory Authority FINMA, or FINMA, and the offer of shares has not been and will not be authorized under the Swiss Federal Act on Collective Investment Schemes, or CISA. The investor protection afforded to acquirers of interests in collective investment schemes under the CISA does not extend to acquirers of shares.

This prospectus supplement relates to an Exempt Offer in accordance with the Offered Securities Rules of the Dubai Financial Services Authority, or DFSA. This prospectus supplement is intended for distribution only to persons of a type specified in the Offered Securities Rules of the DFSA. It must not be delivered to, or relied on by, any other person. The DFSA has no responsibility for reviewing or verifying any documents in connection with Exempt Offers. The DFSA has not approved this prospectus supplement nor taken steps to verify the information set forth herein and has no responsibility for the prospectus supplement. The shares to which this prospectus supplement relates may be illiquid and/or subject to restrictions on their resale. Prospective purchasers of the shares offered should conduct their own due diligence on the shares. If you do not understand the contents of this prospectus supplement you should consult an authorized financial advisor.

The shares may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the shares must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (NI 33-105), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

The validity of the securities offered hereby will be passed upon for us by Alston & Bird LLP. The validity of the securities offered hereby will be passed upon for the underwriters by Simpson Thacher & Bartlett LLP.

The consolidated financial statements of TCBI appearing in TCBI’s Annual Report (Form 10-K) for the year ended December 31, 2015 and the effectiveness of TCBI’s internal control over financial reporting as of December 31, 2015 have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon included therein, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such reports given on the authority of such firm as experts in accounting and auditing.

Texas Capital Bancshares, Inc. may offer and sell, from time to time, in one or more offerings, senior debt securities, subordinated debt securities, convertible debt securities, preferred stock, common stock, depositary shares, warrants, stock purchase contracts or stock purchase units. This prospectus provides a general description of the securities we may offer and the manner in which they may be offered. Supplements to this prospectus will describe the specific terms and manner of offering of the securities we actually offer. Prospectus supplements may also add, update, or change information contained in this prospectus. You should read this prospectus and any prospectus supplement carefully before you invest. This prospectus may not be used to sell securities, unless it is accompanied by a prospectus supplement that describes the terms and manner of offering of those securities.

We may offer these securities from time to time in amounts, prices, and on other terms to be determined at the time of the offering. We may sell these securities to or through underwriters, to other purchasers or through agents. The accompanying prospectus supplement will specify the names of any underwriters or agents.

Our common stock is traded on the Nasdaq Global Select Market under the symbol “TCBI.” You are urged to obtain current market prices for our common stock.

An investment in our securities involves significant risks. You should carefully read this prospectus, any applicable prospectus supplement, our periodic reports and other information we file with the U.S. Securities and Exchange Commission and any information under the heading “Risk Factors” beginning on page 4 of this prospectus before making a decision to purchase our securities.

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

These securities are our unsecured obligations, are not savings accounts, deposits or other obligations of any bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.

WE ARE RESPONSIBLE FOR THE INFORMATION CONTAINED AND INCORPORATED BY REFERENCE IN THIS PROSPECTUS AND ANY ACCOMPANYING PROSPECTUS SUPPLEMENT, AND IN ANY FREE WRITING PROSPECTUS THAT WE PREPARE. WE HAVE NOT AUTHORIZED ANYONE TO GIVE YOU ANY OTHER INFORMATION, AND WE TAKE NO RESPONSIBILITY FOR ANY OTHER INFORMATION THAT OTHERS MAY GIVE YOU. THIS PROSPECTUS, ANY ACCOMPANYING PROSPECTUS SUPPLEMENT AND ANY SUCH FREE WRITING PROSPECTUS MAY BE USED ONLY FOR THE PURPOSES FOR WHICH THEY HAVE BEEN PREPARED. YOU SHOULD NOT ASSUME THAT THE INFORMATION CONTAINED OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS IS ACCURATE AS OF ANY DATE OTHER THAN THE DATE OF THIS PROSPECTUS OR THE DATE OF THE RELEVANT INCORPORATED DOCUMENT, AS APPLICABLE. THE FINANCIAL CONDITION, RESULTS OF OPERATIONS OR BUSINESS PROSPECTS OF THE COMPANY MAY HAVE CHANGED SINCE THOSE DATES. WE ARE NOT MAKING AN OFFER OF THESE SECURITIES IN ANY JURISDICTION WHERE THE OFFER IS NOT PERMITTED.

This prospectus is part of a registration statement we filed with the Securities and Exchange Commission, or the SEC, using a “shelf” registration process. Under this shelf registration process we may from time to time, in one or more series, sell any one or a combination of the securities described in this prospectus in one or more offerings. In this prospectus, “TCBI,” “we,” “our,” “ours,” and “us” refer to Texas Capital Bancshares, Inc., which is a registered bank holding company and a financial holding company headquartered in Dallas, Texas, and its subsidiaries on a consolidated basis, unless the context otherwise requires. References to “Texas Capital Bank” or the “Bank” mean Texas Capital Bank, N.A., which is our principal banking subsidiary.

This prospectus provides a general description of each of the securities we may offer. Each time we offer securities we will provide a prospectus supplement containing specific information about the terms of the securities being offered. The prospectus supplement may include a discussion of any risk factors or other special considerations that apply to those securities. The prospectus supplement may also add, update or change the information in this prospectus. If there is any inconsistency between the information in this prospectus and any prospectus supplement, you should rely on the information in the prospectus supplement. You should read both this prospectus and any prospectus supplement together with additional information described under the heading “Where You Can Find More Information.”

The registration statement containing this prospectus, including the exhibits to the registration statement, provides additional information about us and the securities offered by this prospectus. The registration statement, including the exhibits and the documents incorporated herein by reference, can be read on the SEC website or at the SEC offices mentioned under the heading “Where You Can Find More Information.”

You should rely only on the information we incorporate by reference or present in this prospectus or the relevant prospectus supplement. We have not authorized anyone else, including any underwriter or agent, to provide you with different or additional information. We may only use this prospectus to sell securities if it is accompanied by a prospectus supplement which includes the specific terms of that offering. We are only offering these securities in states where the offer is permitted. You should not assume that the information in this prospectus or a prospectus supplement is accurate as of any date other than the dates on the front of those documents.

We may sell securities to underwriters who will sell the securities to the public on terms fixed at the time of sale. In addition, the securities may be sold by us directly or through dealers or agents designated from time to time. If we, directly or through agents, solicit offers to purchase the securities, we reserve the sole right to accept and, together with our agents, to reject, in whole or in part, any of those offers.

The prospectus supplement will contain the names of the underwriters, dealers, or agents, if any, together with the terms of the offering, the compensation of those underwriters, dealers, or agents, and the net proceeds to us. Any underwriters, dealers, or agents participating in the offering may be deemed “underwriters” within the meaning of the Securities Act of 1933, as amended.

We file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any document we file at the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the public reference room. The SEC also maintains an Internet website that contains reports, proxy statements and other information about us and other issuers that file documents electronically with the SEC. The address of that site is http://www.sec.gov. Our Internet address is http://www.texascapitalbank.com. The information on, or that can be accessed through, our website is not a part of this document.

The SEC allows us to “incorporate by reference” information we file with it, which means that we can disclose important information to you by referring you to other documents. The information incorporated by reference is considered to be a part of this prospectus, and information that we file later with the SEC will automatically update and supersede this information. In all cases, you should rely on the later information over different information included in this prospectus.

We incorporate by reference the documents listed below and all future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the termination of the offering, except to the extent that any information contained in such filings is deemed “furnished” in accordance with SEC rules, including, but not limited to, information furnished under Items 2.02 and 7.01 of any Current Report on Form 8-K including related exhibits:

We will provide to each person, including any beneficial owner, to whom a prospectus is delivered, a copy of any or all of the documents or information that have been incorporated by reference in this prospectus but not delivered with this prospectus. We will provide this at no cost to the requestor upon written or telephonic request addressed to Texas Capital Bancshares, Inc., 2000 McKinney Avenue, Suite 700, Dallas, Texas 75201, Attention: Heather Worley (telephone: 214-932-6600).

You should rely only on the information contained or incorporated by reference in this prospectus. We have not authorized anyone else to provide you with additional or different information.

This prospectus, each prospectus supplement and the documents incorporated by reference herein and therein contain statements that are considered “forward looking statements” within the meaning of United States federal securities laws. In addition, TCBI and its management may make other written or oral communications from time to time that contain forward-looking statements. Forward-looking statements, including statements about industry trends, management’s future expectations and other matters that do not relate strictly to historical facts, are based on assumptions by management, and are often identified by such forward-looking terminology as “expect,” “look,” “believe,” “anticipate,” “estimate,” “seek,” “may,” “will,” “trend,” “target,” and “goal” or

similar statements or variations of such terms. Forward-looking statements may include, among other things, statements about TCBI’s confidence in its strategies and its expectations about financial performance, market growth, market and regulatory trends and developments, acquisitions and divestitures, new technologies, services and opportunities and earnings.

Actual outcomes and results may differ materially from what is expressed in our forward-looking statements and from our historical financial results due to the factors discussed elsewhere in this prospectus supplement or disclosed in our other SEC filings. Forward-looking statements included herein should not be relied upon as representing our expectations or beliefs as of any date subsequent to the date of this prospectus supplement. Except as required by law, we undertake no obligation to revise any forward-looking statements contained in this prospectus, whether as a result of new information, future events or otherwise. The factors discussed herein are not intended to be a complete summary of all risks and uncertainties that may affect our businesses. Though we strive to monitor and mitigate risk, we cannot anticipate all potential economic, operational and financial developments that may adversely impact our operations and our financial results. Forward-looking statements should not be viewed as predictions and should not be the primary basis upon which investors evaluate an investment in our securities.

Any investor in our securities should consider all risks and uncertainties disclosed in our SEC filings described under the heading “Where You Can Find More Information,” all of which are accessible on the SEC’s website at http://www.sec.gov.

TCBI is the parent company of Texas Capital Bank and is a bank holding company and a financial holding company registered with the Board of Governors of the Federal Reserve System, or Federal Reserve. The Bank is headquartered in Dallas, with primary banking offices in Austin, Dallas, Fort Worth, Houston, and San Antonio, the five largest metropolitan areas of Texas. All of our business activities are conducted through the Bank. We have focused on organic growth, maintenance of credit quality and recruiting and retaining experienced bankers with strong personal and professional relationships in their communities.

We serve the needs of commercial businesses and successful professionals and entrepreneurs located in Texas as well as operate several lines of business serving a regional or national clientele of commercial borrowers. We are primarily a secured lender, with our greatest concentration of loans in Texas. We have benefitted from the Texas economy since our inception, producing strong loan growth and favorable loss experience amidst the challenging environment for banking nationally.

Our principal executive offices are located at 2000 McKinney Avenue, Suite 700, Dallas, Texas 75201 and our telephone number is (214) 932-6600.

An investment in our securities involves significant risks. Before you invest in any of our securities, in addition to the other information in this prospectus, you should carefully consider the risk factors contained in Part I, Item 1A under the caption “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2013, which are incorporated herein by reference (and similar terms in any of our annual or quarterly reports for subsequent periods and current reports that we file with the SEC and that are so incorporated). Additional risks related to our securities may also be described in a prospectus supplement. Statements in or portions of a future document incorporated by reference in this prospectus, including without limitation those relating to risk factors, may update and supersede statements in and portions of this prospectus or such incorporated documents.

Unless otherwise specified in a prospectus supplement accompanying this prospectus, we expect to use the net proceeds from the sale of our securities for general corporate purposes. We will specify the principal purposes for which the net proceeds from the sale of our securities will be used in a prospectus supplement at the time of sale. Until we use the net proceeds from the sale of the securities for these purposes, we may place the net proceeds in temporary investments or we may hold the net proceeds in deposit accounts in our subsidiary Bank.

The following table sets forth our consolidated ratios of earnings to fixed charges for the periods shown below. For purposes of computing these ratios, earnings represent the sum of income from continuing operations before taxes plus fixed charges. Fixed charges represent total interest expense, including and excluding interest on deposits. We paid dividends on preferred stock only during 2009 and commencing with the second quarter of 2013 to the present. In the other periods presented below our ratio of earnings to combined fixed charges and preference dividends for those periods is identical to the ratio of earnings to fixed charges.

In January 2009 we issued $75 million of perpetual preferred stock and related warrants under the U.S. Department of Treasury’s voluntary Capital Purchase Program. We repurchased the preferred stock in May 2009. The $3.9 million accelerated deemed dividend in connection with the repurchase, combined with preferred dividends of $1.5 million paid in 2009 resulted in a total dividend and reduction of earnings available to common stockholders of $5.4 million for the year ended December 31, 2009.

In March 2013 we completed a sale of 6.0 million shares of our 6.50% Non-Cumulative Preferred Stock in a public offering. We paid preferred dividends of $7.4 million in 2013 and $2.4 million for the three months ended March 31, 2014.

The descriptions of the securities contained in this prospectus, together with the applicable prospectus supplement, summarize all the material terms and provisions of the various types of securities that we may offer. The particular terms of the securities offered by any prospectus supplement will be described in that prospectus supplement. If indicated in an applicable prospectus supplement, the terms of the securities may differ from the terms summarized below. An applicable prospectus supplement will also contain information, where applicable, about material U.S. federal income tax considerations relating to the securities, and the securities exchange, if any, on which the securities will be listed.

If we issue securities at a discount from their original stated principal or liquidation amount, then, for purposes of calculating the total dollar amount of all securities issued under this prospectus, we will treat the initial offering price of the securities as the total original principal or liquidation amount of the securities.

This prospectus may not be used to sell securities unless it is accompanied by a prospectus supplement.

This section describes the general terms and provisions of the debt securities that we may issue. The applicable prospectus supplement will describe the specific terms of the debt securities offered through that prospectus supplement as well as any general terms described in this section that will not apply to those debt securities.

Any debt securities issued using this prospectus, or “Debt Securities,” will be our direct unsecured general obligations. The Debt Securities will be either our senior debt securities, or “Senior Debt Securities,” or our subordinated debt securities, or “Subordinated Debt Securities.” The Senior Debt Securities and the Subordinated Debt Securities will be issued under separate indentures between us and a trustee chosen by us and qualified to act as a trustee under the Trust Indenture Act of 1939, or the “Trustee.” Senior Debt Securities will be issued under a “Senior Indenture” and Subordinated Debt Securities will be issued under a “Subordinated Indenture.” Together, the Senior Indenture and the Subordinated Indenture, as they may be amended or supplemented from time to time, are called “Indentures.”

The sole source of funding of our parent company financial obligations has consisted of proceeds of capital markets transactions and cash payments from the Bank for debt service. We may in the future seek to rely upon receipt of dividends paid by the Bank to meet our financial obligations. The Bank is subject to statutory dividend restrictions. Under such restrictions, national banks may not, without the prior approval of the Office of the

Comptroller of the Currency, or OCC, declare dividends in excess of the sum of the current year’s net profits plus the retained net profits from the prior two years, less any required transfers to surplus. The Basel III Capital Rules, effective for us on January 1, 2015, will further limit the amount of dividends that be paid by the Bank.

Our debt securities will be structurally subordinated to all indebtedness and other liabilities of our subsidiaries, since any right we have to receive any assets of our subsidiaries will be effectively subordinated to the claims of that subsidiary’s creditors. If we are recognized as a creditor of that subsidiary, our claims would still be subordinate to any security interest in the assets of that subsidiary and any indebtedness of that subsidiary senior to us. Claims from creditors (other than us), on subsidiaries may include long-term and medium-term debt and substantial obligations related to deposit liabilities, federal funds purchased, securities sold under repurchase agreements and other short-term borrowings. Capital loans that we make to the Bank are by their terms subordinate in right of payment to deposits and to other indebtedness of the Bank.

We have summarized the material provisions of the Debt Securities and the Indentures below. The summary is not complete. The form of each Indenture has been filed with the SEC as referenced in the list of exhibits to the registration statement of which this prospectus is a part, and you should read the Indentures for provisions that may be important to you. Your rights are defined by the terms of the Indentures, not the summary provided in this prospectus or a prospectus supplement. In the summary below we have included references to article or section numbers of the applicable Indenture so that you can easily locate these provisions. Whenever we refer in this prospectus or in the prospectus supplement to particular articles or sections or defined terms of the Indentures, those articles or sections or defined terms are incorporated by reference herein or therein, as applicable.

Capitalized terms used in the summary and not otherwise defined herein have the meanings specified in the Indentures.

The Indentures provide that Debt Securities in separate series may be issued thereunder from time to time without limitation as to aggregate principal amount. We may specify a maximum aggregate principal amount for the Debt Securities of any series (Section 2.05). We will determine the terms and conditions of the Debt Securities, including the maturity, principal and interest, but those terms must be consistent with the Indenture.

The Senior Debt Securities will rank equally with all of our other senior unsecured and unsubordinated debt (“Senior Debt”). The Subordinated Debt Securities will be subordinated in right of payment to the prior payment in full of all of our Senior Debt as described under “—Subordination of Subordinated Debt Securities” and in the prospectus supplement applicable to any Subordinated Debt Securities.

The applicable prospectus supplement will set forth the price or prices at which the Debt Securities to be offered will be issued and will describe the following terms of such Debt Securities:

The Indentures do not limit the amount of Debt Securities that may be issued. Each Indenture allows Debt Securities to be issued up to the principal amount that may be authorized by us and may be in any currency or currency unit designated by us.

Debt Securities, including Original Issue Discount Securities bearing no interest or bearing interest which at the time of issuance is below market rate, may be sold at a substantial discount below their principal amount. Special United States federal income tax considerations applicable to Debt Securities sold at an original issue discount may be described in the applicable prospectus supplement. In addition, special United States federal income tax or other considerations applicable to any Debt Securities that are denominated in a currency or currency unit other than United States dollars may be described in the applicable prospectus supplement.

The Senior Debt Securities will be our unsecured senior obligations and will rank equally with all other senior unsecured and unsubordinated debt. The Senior Debt Securities will, however, be subordinated in right of payment to all our secured indebtedness to the extent of the value of the assets securing such indebtedness, whether existing at the date of issuance of the Senior Debt Securities or subsequently incurred. Except as provided in the applicable Senior Indenture or specified in any authorizing resolution or supplemental indenture relating to a series of Senior Debt Securities to be issued, the Senior Indenture will not limit the amount of additional indebtedness that may rank equally with the Senior Debt Securities or the amount of indebtedness, secured or otherwise, that may be incurred or preferred stock that may be issued by any of our subsidiaries.

The indebtedness evidenced by the Subordinated Debt Securities will, to the extent set forth in the Subordinated Indenture with respect to each series of Subordinated Debt Securities, be subordinate in right of payment to the prior payment in full of all of our secured indebtedness and Senior Debt, including the Senior Debt Securities, whether existing at the date of issuance of the Senior Debt or subsequently incurred (Article XIII of the Subordinated Indenture). The prospectus supplement relating to any Subordinated Debt Securities will summarize the subordination provisions of the Subordinated Indenture applicable to that series including:

The prospectus supplement will also describe as of a recent date the approximate amount of Senior Debt to which the Subordinated Debt Securities of that series will be subordinated.

The failure to make any payment on any of the Subordinated Debt Securities by reason of the subordination provisions of the Subordinated Indenture described in the prospectus supplement will not be construed as preventing the occurrence of an Event of Default with respect to the Subordinated Debt Securities arising from any such failure to make payment.

The subordination provisions described above will not be applicable to payments in respect of the Subordinated Debt Securities from a defeasance trust established in connection with any legal defeasance or covenant defeasance of the Subordinated Debt Securities as described under “—Legal Defeasance and Covenant Defeasance.”

If stated in the applicable prospectus supplement, the Subordinated Debt Securities covered by that prospectus supplement will be intended to qualify as Tier 2 Capital under the guidelines established by the Federal Reserve, for bank holding companies. The guidelines set forth specific criteria for Subordinated Debt Securities to qualify as Tier 2 Capital, including among other things that the Subordinated Debt Securities must:

The Debt Securities may be converted into other securities of our company, if at all, according to the terms and conditions of the Indenture, as will be described in the applicable prospectus supplement. Such terms will include

the conversion price, the conversion period, whether conversion will be at the option of the holders of such series of Debt Securities or at our option, the events requiring an adjustment of the conversion price and provisions affecting conversion in the event of the redemption of such series of Debt Securities.

The Debt Securities of each series will be issuable, unless otherwise specified in the applicable prospectus supplement, only in denominations of $1,000 and integral multiples thereof (Section 2.08).

Registered securities of any series that are not Global Securities will be exchangeable for other registered securities of the same series and of like aggregate principal amount and tenor in different authorized denominations. In addition, if debt securities of any series are issuable as both registered securities and bearer securities, the holder may choose, upon written request, and subject to the terms of the applicable Indenture, to exchange bearer securities and the appropriate related coupons of that series into registered securities of the same series of any authorized denominations and of like aggregate principal amount and tenor. Bearer securities with attached coupons surrendered in exchange for registered securities between a regular record date or a special record date and the relevant date for interest payment shall be surrendered without the coupon relating to the interest payment date. Interest will not be payable with respect to the registered security issued in exchange for that bearer security. That interest will be payable only to the holder of the coupon when due in accordance with the terms of the Indenture. Bearer securities will not be issued in exchange for registered securities.

The holder may present registered securities for registration of transfer, together with a duly executed form of transfer, at the office of the security registrar or at the office of any transfer agent designated by us for that purpose with respect to any series of Debt Securities and referred to in the applicable prospectus supplement. This may be done without service charge but upon payment of any taxes and other governmental charges as described in the applicable Indenture. The security registrar or the transfer agent will effect the transfer or exchange upon being satisfied with the documents of title and identity of the person making the request. We will appoint the Trustee as security registrar for each Indenture. If a prospectus supplement refers to any transfer agents initially designated by us with respect to any series of Debt Securities in addition to the security registrar, we may at any time rescind the designation of any of those transfer agents or approve a change in the location through which any of those transfer agents acts. If, however, Debt Securities of a series are issuable solely as registered securities, we will be required to maintain a transfer agent in each place of payment for that series, and if Debt Securities of a series are issuable as bearer securities, we will be required to maintain a transfer agent in a place of payment for that series located outside of the United States in addition to the security registrar. We may at any time designate additional transfer agents with respect to any series of Debt Securities. The Debt Security registrar and any other transfer agent initially designated by us for any Debt Securities will be named in the applicable prospectus supplement (Section 2.06). We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each Place of Payment for the Debt Securities of each series (Section 4.02).

If the Debt Securities of any series (or of any series and specified tenor) are to be redeemed in part, we will not be required to

(1) issue, register the transfer of or exchange any Debt Security of that series (or of that series and specified tenor, as the case may be) during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any such Debt Security that may be selected for redemption and ending at the close of business on the day of such mailing or

(2) register the transfer of or exchange any Debt Security so selected for redemption, in whole or in part, except the unredeemed portion of any such Debt Security being redeemed in part (Section 2.09).

Some or all of the Debt Securities of any series may be represented, in whole or in part, by one or more Global Securities that will have an aggregate principal amount equal to that of the Debt Securities they represent. Each Global Security will be registered in the name of a Depositary or its nominee identified in the applicable prospectus supplement, will be deposited with such Depositary or nominee or its custodian and will bear a legend regarding the restrictions on exchanges and registration of transfer thereof referred to below and any such other matters as may be provided for pursuant to the applicable Indenture. Global Securities may be issued in either registered or bearer form and in either temporary or permanent form.

Notwithstanding any provision of the Indentures or any Debt Security described in this prospectus, no Global Security, unless its terms so expressly permit, may be exchanged in whole or in part for Debt Securities registered, and no transfer of a Global Security in whole or in part may be registered, in the name of any person other than the Depositary for such Global Security or any nominee of such Depositary unless:

(1) the Depositary has notified us that it is unwilling or unable to continue as Depositary for such Global Security or has ceased to be qualified to act as such as required by the applicable Indenture, and in either case we fail to appoint a successor Depositary within 90 days;

(2) an Event of Default with respect to the Debt Securities represented by such Global Security has occurred and is continuing and the Trustee has received a written request from the Depositary to issue certificated Debt Securities; or

(3) other circumstances exist, in addition to or in lieu of those described above, as may be described in the applicable prospectus supplement.

All Debt Securities issued in exchange for a Global Security or any portion thereof will be registered in such names as the Depositary may direct (Section 2.17).

As long as the Depositary, or its nominee, is the registered holder of a Global Security, the Depositary or such nominee, as the case may be, will be considered the sole owner and Holder of such Global Security and the Debt Securities that it represents for all purposes under the Debt Securities and the applicable Indenture (Section 2.17). Except in the limited circumstances referred to above, owners of beneficial interests in a Global Security will not be entitled to have such Global Security or any Debt Securities that it represents registered in their names, will not receive or be entitled to receive physical delivery of certificated Debt Securities in exchange for those interests and will not be considered to be the owners or Holders of such Global Security or any Debt Securities that it represents for any purpose under the Debt Securities or the applicable Indenture. All payments on a Global Security will be made to the Depositary or its nominee, as the case may be, as the Holder of the security. The laws of some jurisdictions require that some purchasers of Debt Securities take physical delivery of such Debt Securities in definitive form. These laws may impair the ability to transfer beneficial interests in a Global Security.

Ownership of beneficial interests in a Global Security will be limited to institutions that have accounts with the Depositary or its nominee (“participants”) and to persons that may hold beneficial interests through participants. In connection with the issuance of any Global Security, the Depositary will credit, on its book-entry registration and transfer system, the respective principal amounts of Debt Securities represented by the Global Security to the accounts of its participants. Ownership of beneficial interests in a Global Security will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by the Depositary (with respect to participants’ interests) or any such participant (with respect to interests of persons held by such participants on their behalf). Payments, transfers, exchanges and other matters relating to beneficial interests in a Global Security may be subject to various policies and procedures adopted by the Depositary from time to time. None of us, any Trustee or any agent of ours will have any responsibility or liability for any aspect of the Depositary’s or any participant’s records relating to, or for payments made on account of, beneficial interests in a Global Security, or for maintaining, supervising or reviewing any records relating to such beneficial interests.

Unless otherwise indicated in the applicable prospectus supplement, payment of interest on a Debt Security on any Interest Payment Date will be made to the Person in whose name such Debt Security (or one or more Predecessor Debt Securities) is registered at the close of business on the regular record date for such interest payment (Section 2.14).

Unless otherwise indicated in the applicable prospectus supplement, principal of and any premium and interest on the Debt Securities of a particular series will be payable at the office of such Paying Agent or Paying Agents as we may designate for such purpose from time to time, except that at our option payment of any interest on Debt Securities in certificated form may be made by check mailed to the address of the Person entitled thereto as such address appears in the Security Register. Unless otherwise indicated in the applicable prospectus supplement, the corporate trust office of the Trustee under the Senior Indenture in The City of New York will be designated as sole Paying Agent for payments with respect to Senior Debt Securities of each series, and the corporate trust office of the Trustee under the Subordinated Indenture in The City of New York will be designated as the sole Paying Agent for payment with respect to Subordinated Debt Securities of each series.

Any other Paying Agents initially designated by us for the Debt Securities of a particular series will be named in the applicable prospectus supplement. We may at any time designate additional Paying Agents or rescind the designation of any Paying Agent or approve a change in the office through which any Paying Agent acts, except that we will be required to maintain a Paying Agent in each Place of Payment for the Debt Securities of a particular series (Section 4.02).

Subject to any applicable abandoned property law, all money paid by us to a Paying Agent for the payment of the principal of or any premium or interest on any Debt Security which remain unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the Holder of such Debt Security thereafter may look only to us for payment (Section 11.05).

We may not consolidate with or merge into, or transfer, lease or otherwise dispose of all or substantially all of our assets to, any Person (a “successor Person”), and may not permit any Person to consolidate with or merge into us, unless:

Unless otherwise specified in the prospectus supplement, each of the following will constitute an Event of Default under the applicable Indenture with respect to Debt Securities of any series:

Except as may be summarized in a prospectus supplement and set forth in a supplemental indenture or the board resolution creating a series of Debt Securities, if an Event of Default (other than an Event of Default with respect to TCBI described in clause (7) above) with respect to the Debt Securities of any series at the time Outstanding occurs and is continuing, either the applicable Trustee or the Holders of at least 25% in principal amount of the Outstanding Debt Securities of that series, by notice as provided in the Indenture, may declare the principal amount of the Debt Securities of that series (or, in the case of any Debt Security that is an Original Issue Discount Debt Security, such portion of the principal amount of such Debt Security as may be specified in the terms of such Debt Security) to be due and payable immediately. If an Event of Default with respect to TCBI described in clause (7) above with respect to the Debt Securities of any series at the time Outstanding occurs, the principal amount of all the Debt Securities of that series (or, in the case of any such Original Issue Discount Security, such specified amount) will automatically, and without any action by the applicable Trustee or any Holder, become immediately due and payable. After any such acceleration, but before a judgment or decree based on acceleration, the Holders of a majority in principal amount of the Outstanding Debt Securities of that series may, under certain circumstances, rescind and annul such acceleration if all Events of Default, other than the non-payment of accelerated principal (or other specified amount), have been cured or waived as provided in the applicable Indenture (Section 6.01). For information as to waiver of defaults, see “— Modification and Waiver” below.

Subject to the provisions of the Indentures relating to the duties of the Trustees in case an Event of Default has occurred and is continuing, the Trustee will be under no obligation to exercise any of its rights or powers under the applicable Indenture at the request or direction of any of the Holders, unless such Holders have offered to such Trustee reasonable indemnity (Section 6.04). Subject to such provisions for the indemnification of the Trustees, the Holders of a majority in principal amount of the Outstanding Debt Securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising any trust or power conferred on the Trustee with respect to the Debt Securities of that series (Section 6.06).

No Holder of a Debt Security of any series will have any right to institute any proceeding with respect to the applicable Indenture, or for the appointment of a receiver or a trustee, or for any other remedy thereunder, unless:

However, such limitations do not apply to a suit instituted by a Holder of a Debt Security for the enforcement of payment of the principal of or any premium or interest on such Debt Security on or after the applicable due date specified in such Debt Security or, if applicable, to convert such Debt Security (Section 6.04).

We will be required to furnish to each Trustee annually a statement by certain of our officers as to whether or not, to their knowledge, we are in default in the performance or observance of any of the terms, provisions and conditions of the applicable Indenture and, if so, specifying all such known defaults (Section 4.06).

Modifications and amendments of an Indenture may be made by us and the applicable Trustee with the consent of the Holders of a majority in principal amount of the Outstanding Debt Securities of each series affected by such modification or amendment; provided, however, that no such modification or amendment may, without the consent of the Holder of each Outstanding Debt Security affected thereby:

The Holders of a majority in principal amount of the Outstanding Debt Securities of any series may waive compliance by us with certain restrictive provisions of the applicable Indenture (Section 6.06). The Holders of a majority in principal amount of the Outstanding Debt Securities of any series may waive any past default under the applicable Indenture, except a default in the payment of principal, premium or interest and certain covenants and provisions of the Indenture which cannot be amended without the consent of the Holder of each Outstanding Debt Security of such series (Section 6.06).

Each of the Indentures provides that in determining whether the Holders of the requisite principal amount of the Outstanding Debt Securities have given or taken any direction, notice, consent, waiver or other action under such Indenture as of any date:

Certain Debt Securities, including those owned by us or any of our Affiliates, will not be deemed to be Outstanding (Section 8.03).

Except in certain limited circumstances, we will be entitled to set any day as a record date for the purpose of determining the Holders of Outstanding Debt Securities of any series entitled to give or take any direction, notice, consent, waiver or other action under the applicable Indenture, in the manner and subject to the limitations provided in the Indenture. In certain limited circumstances, the Trustee will be entitled to set a record date for action by Holders. If a record date is set for any action to be taken by Holders of a particular series, only persons who are Holders of Outstanding Debt Securities of that series on the record date may take such action.

Each Indenture will be discharged and will cease to be of further effect as to all outstanding Debt Securities of any series issued thereunder, when:

If and to the extent indicated in the applicable prospectus supplement, we may, at any time, exercise our option to have all of our obligations discharged with respect to the Debt Securities of a series, which we call “legal defeasance.” In addition, we may, at any time, exercise our option to have certain restrictive covenants released with respect to the Debt Securities of a series, which we call “covenant defeasance.”

The Indentures may provide for the exercise of legal defeasance with respect to any Debt Securities (Section 11.02). Upon the exercise of this option, we will be discharged from all our obligations, and, if such Debt Securities are Subordinated Debt Securities, the provisions of the Subordinated Indenture relating to subordination will cease to be effective, with respect to such Debt Securities (except for certain obligations to convert, exchange or register the transfer of Debt Securities, to replace stolen, lost or mutilated Debt Securities, to maintain paying agencies and to hold monies for payment in trust) upon the deposit in trust for the benefit of the Holders of such Debt Securities of money or United States Government Obligations, or both, which, through the payment of principal and interest in respect thereof in accordance with their terms, will provide money in an amount sufficient to pay the principal of and any premium and interest on such Debt Securities on the respective Stated Maturities in accordance with the terms of the applicable Indenture and such Debt Securities. Such defeasance or discharge may occur only if, among other things:

The Indenture may provide for the exercise of covenant defeasance with respect to any Debt Securities (Section 11.02). Upon the exercise of this option, we may omit to comply with certain restrictive covenants (but not to conversion, if applicable), including those that may be described in the applicable prospectus supplement, the occurrence of certain Events of Default, which are described above in clause (5) (with respect to such restrictive covenants) and clause (6) under “— Events of Default” and any that may be described in the applicable prospectus supplement, will not be deemed to either be or result in an Event of Default with respect to such Debt Securities. If such Debt Securities are Subordinated Debt Securities, the provisions of the Subordinated Indenture relating to subordination will cease to be effective with respect to such Debt Securities. In order to exercise such option, we must deposit, in trust for the benefit of the Holders of such Debt Securities, money or United States Government Obligations, or both, which, through the payment of principal and interest in respect thereof in accordance with their terms, will provide money in an amount sufficient to pay the principal of and any premium and interest on such Debt Securities on the respective Stated Maturities in accordance with the terms of the applicable Indenture and such Debt Securities.

Such covenant defeasance may occur only if we have delivered to the applicable Trustee an Opinion of Counsel that in effect says that Holders of such Debt Securities will not recognize gain or loss for federal income tax

purposes as a result of such deposit and covenant defeasance and will be subject to federal income tax on the same amount, in the same manner and at the same times as would have been the case if such deposit and covenant defeasance were not to occur, and the requirements listed in the last four bullet points in the preceding paragraph are satisfied. If we exercise this option with respect to any Debt Securities and such Debt Securities were declared due and payable because of the occurrence of any Event of Default, the amount of money and United States Government Obligations so deposited in trust would be sufficient to pay amounts due on such Debt Securities at the time of their respective Stated Maturities but may not be sufficient to pay amounts due on such Debt Securities upon any acceleration resulting from such Event of Default. In such case, we would remain liable for such payments.

Notices to Holders of Debt Securities will be given by mail to the addresses of such Holders as they may appear in the Security Register.

We, the Trustees and any of our agents may treat the Person in whose name a Debt Security is registered as the absolute owner of the Debt Security (whether or not such Debt Security may be overdue) for the purpose of making payment and for all other purposes.

The Indentures and the Debt Securities will be governed by, and construed in accordance with, the law of the State of New York without regard to conflicts of law principles.

The following is a brief description of our capital stock. This summary does not purport to be complete in all respects. This description is subject to and qualified in its entirety by reference to our certificate of incorporation, as amended, a copy of which has been filed with the SEC and is also available upon request from us.

Under our certificate of incorporation, as amended, we have authority to issue up to 100.0 million shares of common stock, $0.01 par value per share, and 10.0 million shares of preferred stock, par value $0.01 per share. As of April 30, 2014 we had issued and outstanding 43,065,301 shares of common stock and 6.0 million shares of our 6.50% Non-Cumulative Perpetual Preferred Stock, or 6.50% Preferred, having an aggregate liquidation preference of $150.0 million.

Each holder of our common stock is entitled to one vote for each share held on all matters with respect to which the holders of our common stock are entitled to vote. Our common stock has no preemptive or conversion rights and is not subject to redemption. Holders of our common stock are not entitled to cumulative voting in the election of directors. In the event of dissolution or liquidation, after payment of all creditors and payment of liquidation preferences on preferred stock, the holders of our common stock (subject to the prior rights of the holders of any outstanding preferred stock) will be entitled to receive pro rata any assets distributable to stockholders in respect of the number of shares held by them.

General Corporation Law, or DGCL. We have not paid dividends on our common stock to date, and we do not anticipate paying dividends in the near future. However, the payment of dividends on our common stock is subject to the prior rights of the holders of any preferred stock. Payment of dividends on both our common stock and any preferred stock will be dependent upon, among other things, our earnings and financial condition, our cash flow requirements and the prevailing economic and regulatory climate.

Certain provisions of our certificate of incorporation and bylaws could make a merger, tender offer or proxy contest more difficult, even if such events were perceived by many of our stockholders as beneficial to their interests. These provisions are more fully set forth in our Registration Statement on Form 10, as amended, which was filed with the SEC on August 24, 2000, and is incorporated by reference into this prospectus. These provisions include advance notice for nominations of directors and stockholders’ proposals, and authority to issue “blank check” preferred stock with such designations, rights and preferences as may be determined from time to time by our board of directors. In addition, as a Delaware corporation, we are subject to Section 203 of the Delaware General Corporation Law which, in general, prevents an interested stockholder, defined generally as a person owning 15% or more of a corporation’s outstanding voting stock, from engaging in a business combination with TBCI for three years following the date that person became an interested stockholder unless certain specified conditions are satisfied.

The ability of a third party to acquire us is limited under applicable U.S. banking laws and regulations. The Bank Holding Company Act, or BHC Act, requires any bank holding company (as defined therein) to obtain the approval of the Board of Governors of the Federal Reserve prior to acquiring, directly or indirectly, more than 5% of our outstanding Common Stock. Any “company” (as defined in the BHC Act) other than a bank holding company would be required to obtain Federal Reserve approval before acquiring “control” of us. “Control” generally means (i) the ownership or control of 25% or more of a class of voting securities, (ii) the ability to elect a majority of the directors or (iii) the ability otherwise to exercise a controlling influence over management and policies. A holder of 25% or more of our outstanding common stock, other than an individual, is subject to regulation and supervision as a bank holding company under the BHC Act. In addition, under the Change in Bank Control Act of 1978, as amended, and the Federal Reserve’s regulations thereunder, any person, either individually or acting through or in concert with one or more persons, is required to provide notice to the Federal Reserve prior to acquiring, directly or indirectly, 10% or more of our outstanding Common Stock.

The transfer agent and registrar for our common stock is Computershare Investor Services LLC.

Our board of directors is authorized to designate and issue shares of preferred stock in one or more series. Subject to the provisions of our certificate of incorporation and limitations prescribed by law and the rules of the Nasdaq Global Select Market, if applicable, our board of directors has the discretion to adopt resolutions to issue shares, establish the number of shares, change the number of shares constituting any series, and provide or change the voting powers, designations, preferences and relative rights, qualifications, limitations or restrictions on shares of our preferred stock, including dividend rights, terms of redemption, conversion rights and liquidation preferences, in each case without any action or vote by our stockholders.

If we offer to sell preferred stock, we will file with the SEC the certificate of designation setting forth the terms of the preferred stock and the prospectus supplement relating to that offering will include a description of the specific terms of the preferred stock, including:

It is not possible to state the actual effect of the issuance of any shares of preferred stock upon the rights of holders of our common stock until the board of directors determines the specific terms of the preferred stock. However, these effects might include:

In March 2013 we issued 6.0 million shares of 6.50% Preferred having a liquidation preference of $150.0 million. Holders of 6.50% Preferred do not have voting rights, except with respect to the right to elect two directors upon non-payment of dividends for six or more quarterly dividend periods, authorizing or increasing the authorized amount of senior stock, certain changes in the terms of the 6.50% Preferred, and as otherwise required by applicable law. The 6.50% Preferred ranks senior to our common stock as to the payment of dividends and distribution of assets upon our liquidation, dissolution or winding-up.

During any dividend period, so long as any share of 6.50% Preferred remains outstanding and except as otherwise provided below, (i) no dividend may be paid, declared or set apart for any payment on and no distribution shall be made on our common stock or any other class or series of capital stock over which the 6.50% Preferred has preference or priority in the payment of dividends (other than a dividend payable solely in stock that ranks junior to the 6.50% Preferred with respect to the payment of dividends and the distribution of assets upon our liquidation, dissolution or winding-up) and (ii) no shares of common stock or any other class or series of capital stock over which the 6.50% Preferred has preference or priority or is in parity with in the payment of dividends, may be purchased, redeemed or otherwise acquired for consideration by us, directly or indirectly, unless full dividends on all outstanding shares of the 6.50% Preferred for the most recently completed quarterly dividend period have been declared and paid in full (or have been declared and a sum sufficient for the payment thereof has been set apart for such payment) and any prior redemption requirements with respect to shares of the 6.50% Preferred have been complied with.

A dividend period for the 6.50% Preferred is the period from and including a dividend payment date to but excluding the next dividend payment date.

The limitations on dividends and other distributions described in the paragraph above do not apply to:

Subject to the restrictions described above, and not otherwise, dividends (payable in cash, stock, or otherwise), as may be determined by our board of directors or a duly authorized committee of the board, may be declared and paid on our common stock and other stock ranking equally with or junior to the 6.50% Preferred from time to time out of any assets legally available for such payment in amounts permitted by applicable regulatory authorities, and the holders of the 6.50% Preferred will not be entitled to participate in those dividends.

So long as any shares of 6.50% Preferred are outstanding, the vote or consent of the holders of at least 66 2/3% of the then-outstanding shares of 6.50% Preferred, voting separately as a single class, shall be necessary for effecting or validating:

The foregoing provisions will not apply if, at or prior to the time when any such vote or consent would otherwise be required, all outstanding shares of 6.50% Preferred have been redeemed or have been called for redemption upon proper notice, and sufficient funds have been set aside for such redemption.

In January 2009, we issued $75 million of perpetual preferred stock and related warrants under the U.S. Department of Treasury’s voluntary Capital Purchase Program. The preferred stock was repurchased in May 2009 and the U.S. Treasury auctioned the related warrants in the first quarter of 2010. As of December 31, 2013, warrants to purchase 710,598 shares at $14.84 per share were outstanding. These warrants will expire on January 16, 2019.

We may issue additional warrants for the purchase of common stock or warrants to purchase other securities. Warrants may be issued independently or together with debt securities or capital stock offered by any prospectus supplement and may be attached to or separate from any such offered securities. Series of warrants may be issued under a separate warrant agreement entered into between us and a bank or trust company, as warrant agent, all as will be set forth in the prospectus supplement relating to the particular issue of warrants. The warrant agent would act solely as our agent in connection with the warrants and would not assume any obligation or relationship of agency or trust for or with any holders of warrants or beneficial owners of warrants.

The prospectus supplement relating to any warrants TCBI is offering will include specific terms relating to the offering. We will file the form of any warrant agreement with the SEC, and you should read the warrant agreement for provisions that may be important to you. The prospectus supplement will include some or all of the following terms:

Unless otherwise stated in an applicable prospectus supplement, warrants will be issued in registered form. The exercise price for warrants will be subject to adjustment in accordance with the applicable prospectus supplement.

Each warrant will entitle the holder thereof to purchase such number of shares of common stock or other securities at such exercise price as shall be set forth in, or calculable from, the prospectus supplement relating to the warrants, which exercise price may be subject to adjustment upon the occurrence of certain events as set forth in such prospectus supplement. After the close of business on the expiration date, or such later date to which such expiration date may be extended by us, unexercised warrants will become void. The place or places where, and the manner in which, warrants may be exercised shall be specified in the prospectus supplement relating to such warrants.

Prior to the exercise of any warrants to purchase common stock, holders of such warrants will not have any of the rights of holders of common stock or other securities purchasable upon such exercise, including the right to receive payments of dividends or interest, if any, on the common stock or other securities purchasable upon such exercise, or to exercise any applicable right to vote.

The following briefly summarizes the material provisions of the deposit agreement and of the depositary shares and depositary receipts, other than pricing and related terms disclosed in the relevant prospectus supplement. The terms of any depositary shares and any depositary receipts that we offer for sale and any deposit agreement relating to a particular series of preferred stock will be described in more detail in a prospectus supplement. The prospectus supplement will also state whether any of the generalized provisions summarized below do not apply to the depositary shares or depositary receipts being offered. A copy of the form of deposit agreement, including the form of depositary receipt, is incorporated by reference as an exhibit to the Registration Statement. You should read the more detailed provisions of the deposit agreement and the form of depositary receipt for provisions that may be important to you.

We may elect to offer fractional shares of preferred stock, rather than full shares of preferred stock. In such event, we will issue receipts for depositary shares, each of which will represent a fraction of a share of a particular series of preferred stock.

The shares of any series of preferred stock represented by depositary shares will be deposited under a deposit agreement between us and a bank or trust company we select which has its principal office in the United States and a combined capital and surplus of at least $50,000,000, as preferred stock depositary. Each owner of a depositary share will be entitled to all the rights and preferences of the underlying preferred stock, including dividend, voting, redemption, conversion and liquidation rights, in proportion to the applicable fraction of a share of preferred stock represented by such depositary share.

The depositary shares will be evidenced by depositary receipts issued pursuant to the deposit agreement. Depositary receipts will be distributed to those persons purchasing the fractional shares of preferred stock in accordance with the terms of the applicable prospectus supplement.

The preferred stock depositary will distribute all cash dividends or other cash distributions received in respect of the deposited preferred stock to the record holders of depositary shares relating to such preferred stock in proportion to the number of such depositary shares owned by such holders.

The preferred stock depositary will distribute any property received by it other than cash to the record holders of depositary shares entitled thereto. If the preferred stock depositary determines that it is not feasible to make such distribution, it may, with our approval, sell such property and distribute the net proceeds from such sale to such holders.

If a series of preferred stock represented by depositary shares is to be redeemed, the depositary shares will be redeemed from the proceeds received by the preferred stock depositary resulting from the redemption, in whole or in part, of such series of preferred stock. The depositary shares will be redeemed by the preferred stock depositary at a price per depositary share equal to the applicable fraction of the redemption price per share payable in respect of the shares of preferred stock so redeemed.

Whenever we redeem shares of preferred stock held by the preferred stock depositary, the preferred stock depositary will redeem as of the same date the number of depositary shares representing the shares of preferred stock so redeemed. If fewer than all the depositary shares are to be redeemed, the depositary shares to be redeemed will be selected by the preferred stock depositary by lot or ratably or by any other equitable method as the preferred stock depositary may decide.

Unless the related depositary shares have previously been called for redemption, any holder of depositary shares may receive the number of whole shares of the related series of preferred stock and any money or other property represented by such depositary receipts after surrendering the depositary receipts at the corporate trust office of the preferred stock depositary. Holders of depositary shares making such withdrawals will be entitled to receive whole shares of preferred stock on the basis set forth in the related prospectus supplement for such series of preferred stock.

However, holders of such whole shares of preferred stock will not be entitled to deposit such preferred stock under the deposit agreement or to receive depositary receipts for such preferred stock after such withdrawal. If the depositary shares surrendered by the holder in connection with such withdrawal exceed the number of depositary shares that represent the number of whole shares of preferred stock to be withdrawn, the preferred stock depositary will deliver to such holder at the same time a new depositary receipt evidencing such excess number of depositary shares.

Upon receipt of notice of any meeting at which the holders of any series of deposited preferred stock are entitled to vote, the preferred stock depositary will mail the information contained in such notice of meeting to the record holders of the depositary shares relating to such series of preferred stock. Each record holder of such depositary shares on the record date will be entitled to instruct the preferred stock depositary to vote the amount of the preferred stock represented by such holder’s depositary shares. The preferred stock depositary will seek to vote the amount of such series of preferred stock represented by such depositary shares in accordance with such instructions.

We will agree to take all reasonable actions that the preferred stock depositary determines are necessary to enable the preferred stock depositary to vote as instructed. The preferred stock depositary will vote all shares of any series of preferred stock held by it proportionately with instructions received if it does not receive specific instructions from the holders of depositary shares representing such series of preferred stock.

The form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement may at any time be amended by agreement between us and the preferred stock depositary. However, any amendment that imposes additional charges or materially and adversely alters any substantial existing right of the holders of depositary shares will not be effective unless such amendment has been approved by the holders of at least a majority of the affected depositary shares then outstanding. Every holder of an outstanding depositary receipt at the time any such amendment becomes effective, or any transferee of such holder, shall be deemed, by continuing to hold such depositary receipt, or by reason of the acquisition thereof, to consent and agree to such amendment and to be bound by the deposit agreement that has been amended thereby.

We may terminate the deposit agreement at any time, and the preferred stock depositary will give notice of such termination to the record holders of all outstanding depositary receipts not less than 30 days prior to the termination date. In such event, the preferred stock depositary will deliver or make available for delivery to holders of depositary shares, upon surrender of such depositary shares, the number of whole or fractional shares of the related series of preferred stock as are represented by such depositary shares.

No fees, charges or expenses of the preferred stock depositary or any agent of the preferred stock depositary or of any registrar shall be payable by any person other than TCBI, except for any taxes and other governmental charges and except as provided in the deposit agreement. If the preferred stock depositary incurs fees, charges or expenses for which it is not otherwise liable hereunder at the election of a holder of a depositary receipt or other person, such holder or other person will be liable for such fees, charges and expenses.

The preferred stock depositary may resign at any time by delivering to us notice of its intent to do so, and we may at any time remove the preferred stock depositary, any such resignation or removal to take effect upon the appointment of a successor preferred stock depositary and its acceptance of such appointment. Such successor preferred stock depositary must be appointed within 60 days after delivery of the notice of resignation or removal and must be a bank or trust company having its principal office in the United States and a combined capital and surplus of at least $50,000,000.

The preferred stock depositary will forward to the holders of depositary shares all reports and communications from TCBI that are delivered to the preferred stock depositary and that TCBI is required to furnish to the holders of the deposited preferred stock.

Neither the preferred stock depositary nor TCBI will be liable if it is prevented or delayed by law or any circumstances beyond its control in performing its obligations under the deposit agreement. The obligations of TCBI and the preferred stock depositary under the deposit agreement will be limited to performance with honest intentions of their duties thereunder, and they will not be obligated to prosecute or defend any legal proceeding in respect of any depositary shares, depositary receipts or shares of preferred stock unless satisfactory indemnity is furnished. TCBI and the preferred stock depositary may rely upon written advice of counsel or accountants or upon information provided by holders of depositary receipts or other persons believed to be competent and on documents believed to be genuine.

We may issue stock purchase contracts, including contracts obligating holders to purchase from or sell to us, and obligating us to sell to or purchase from the holders, a specified number of shares of common stock, shares of preferred stock or depositary shares at a future date or dates. The consideration per share of common stock, preferred stock or depositary shares and the number of shares of each may be fixed at the time the stock purchase contracts are issued or may be determined by reference to a specific formula set forth in the stock purchase contracts. The stock purchase contracts may be issued separately or as part of units, often known as stock purchase units, consisting of a stock purchase contract and any combination of:

which may secure the holders’ obligations to purchase the common stock, preferred stock or depositary shares under the stock purchase contracts. The stock purchase contracts may require us to make periodic payments to the holders of the stock purchase units or vice versa, and these payments may be unsecured or prefunded on some basis. The stock purchase contracts may require holders to secure their obligations under those contracts in a specified manner.

The applicable prospectus supplement will describe the terms of the stock purchase contracts and stock purchase units, including, if applicable, collateral or depositary arrangements. Such description may not be complete. For more information, you should review the stock purchase contracts and, if applicable, the collateral arrangements and depositary arrangements relating to those stock purchase contracts or stock purchase units and any prepaid securities and the document under which the prepaid securities will be issued. We will file forms of these documents with the SEC before TCBI issues any stock purchase contracts or stock purchase units and, if applicable, prepaid securities.

We may sell the securities offered by this prospectus to one or more underwriters for public offering and sale by them or may sell the securities to investors directly or through dealers or agents, or through a combination of methods. Any underwriter, dealer or agent involved in the offer and sale of the securities will be named in the applicable prospectus supplement.

We may distribute our securities from time to time in one or more transactions at: (1) a fixed price or prices, which may be changed, (2) market prices prevailing at the time of sale, (3) prices related to the prevailing market prices at the time of sale, or (4) negotiated prices. We also may, from time to time, authorize underwriters acting as our agents to offer and sell the securities upon the terms and conditions as set forth in the applicable prospectus supplement. In connection with the sale of securities, underwriters may be deemed to have received compensation from us in the form of underwriting discounts or commissions and may also receive commissions from purchasers of securities for whom they may act as agent. Underwriters may sell securities to or through dealers, and the dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agent.

Any underwriting compensation paid by us to underwriters, dealers or agents in connection with the offering of securities, and any discounts, concessions or commissions allowed by underwriters to participating dealers, will be set forth in the applicable prospectus supplement. Dealers and agents participating in the distribution of the securities may be deemed to be underwriters, and any discounts and commissions received by them and any profit realized by them on resale of the securities may be deemed to be underwriting discounts and commissions under the Securities Act. Underwriters, dealers and agents may be entitled, under agreements entered into with us, to indemnification against contribution toward civil liabilities, including liabilities under the Securities Act.

To facilitate the offering of the securities, certain persons participating in the offering may engage in transactions that stabilize, maintain, or otherwise affect the price of the securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the offering of more securities than we sold to them. In these circumstances, the persons would cover the over-allotments or short positions by making purchases in the open market or by exercising their over-allotment option. In addition, these persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. These transactions may be discontinued at any time.

The underwriters, dealers and agents and their affiliates may engage in transactions with and perform services for us in the ordinary course of business for which they receive compensation.

In compliance with the guidelines of the Financial Industry Regulatory Authority, or FINRA, the maximum discount or commission to be received by any FINRA member or independent broker-dealer may not exceed 8% of the aggregate amount of the securities offered pursuant to this prospectus and any applicable prospectus supplement; however, it is anticipated that the maximum commission or discount to be received in any particular offering of securities will be significantly less than this amount.

Any common stock sold pursuant to a prospectus supplement will be eligible for listing and trading on Nasdaq Global Select Market, subject to official notice of issuance.

The validity of the securities offered hereby will be passed upon for us by Bracewell & Giuliani LLP, Dallas, Texas. The name of the law firm advising any underwriters or agents with respect to certain issues relating to any offering will be set forth in the applicable prospectus supplement.

The consolidated financial statements of TCBI appearing in TCBI’s Annual Report (Form 10-K) for the year ended December 31, 2013 (including schedules appearing therein) and the effectiveness of TCBI’s internal control over financial reporting as of December 31, 2013 have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon included therein and incorporated herein by reference. Such consolidated financial statements and TCBI’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2013 are incorporated herein by reference in reliance upon such reports given on the authority of such firm as experts in accounting and auditing.



Title of each Class of Securities to be Registered	Amount to be Registered	Proposed Maximum Offering Price Per Share	Proposed Maximum Aggregate Offering Price	Amount of Registration Fee(2)
Common Stock, $.001 par value per share	3,450,000(1)	$74.13(2)	$255,748,500	$29,641.25


About This Prospectus Supplement			S-ii
Where You Can Find More Information			S-ii
Forward-Looking Statements			S-iv
Prospectus Supplement Summary			S-1
Risk Factors			S-4
Use of Proceeds			S-7
Capitalization			S-8
Dividend Policy			S-8
Price Range of Common Stock			S-9
Description of Common Stock			S-10
Material U.S. Federal Income and Estate Tax Consequences to Non-U.S. Holders			S-13
Certain ERISA Considerations			S-17
Underwriting			S-19
Legal Matters			S-25
Experts			S-25


About This Prospectus			1
Where You Can Find More Information			2
Forward-Looking Statements			2
About Texas Capital Bancshares, Inc			4
Risk Factors			4
Use of Proceeds			5
Consolidated Ratios of Earnings to Fixed Charges			5
The Securities We May Offer			6
Description of Debt Securities			6
Description of Capital Stock and Warrants			17
Description of Depositary Shares			22
Description of Stock Purchase Contracts and Stock Purchase Units			24
Plan of Distribution			25
Legal Matters			26
Experts			26


	As of September 30, 2016
	Actual			As adjusted
	(unaudited, in thousands)
Cash and cash equivalents	$	3,588,419		$	3,794,014

Debt:
Total short-term debt		1,751,420			1,751,420
Total long-term debt, net		394,360			394,360

Total debt		2,145,780			2,145,780

Stockholders’ equity:
Preferred stock, $.01 par value, $1,000 liquidation value
Authorized shares—10,000,000; Issued shares—6,000,000		150,000			150,000
Common stock, $.01 par value Authorized shares—100,000,000
Issued shares—46,009,912, actual; 49,009,912, as adjusted (1)		460			490
Additional paid-in capital		717,452			923,017
Retained earnings		857,238			857,238
Treasury stock (shares at cost: 417)		(8	)		(8	)
Accumulated other comprehensive income, net of taxes		640			640

Total stockholders’ equity		1,725,782			1,931,377

Total capitalization	$	3,871,562		$	4,077,157


	Sale price per share
	High		Low
2014
First Quarter	$	67.08	$	56.45
Second Quarter		66.62		50.76
Third Quarter		60.74		49.90
Fourth Quarter		62.07		51.58

	Sale price per share
	High		Low
2015
First Quarter	$	54.81	$	40.40
Second Quarter		63.70		47.55
Third Quarter		63.25		48.01
Fourth Quarter		61.83		46.25

	Sale price per share
	High		Low
2016
First Quarter	$	49.88	$	29.78
Second Quarter		51.84		34.54
Third Quarter		55.25		42.36
Fourth Quarter (through November 28, 2016)		75.85		54.20


Name	Number of shares
Merrill Lynch, Pierce, Fenner & Smith Incorporated		1,020,000
J.P. Morgan Securities LLC		990,000
Morgan Stanley & Co. LLC		990,000

Total:		3,000,000


	Page

ABOUT THIS PROSPECTUS		1

WHERE YOU CAN FIND MORE INFORMATION		2

FORWARD-LOOKING STATEMENTS		2

ABOUT TEXAS CAPITAL BANCSHARES, INC		4

RISK FACTORS		4

USE OF PROCEEDS		5

CONSOLIDATED RATIOS OF EARNINGS TO FIXED CHARGES		5

THE SECURITIES WE MAY OFFER		6

DESCRIPTION OF DEBT SECURITIES		6

DESCRIPTION OF CAPITAL STOCK AND WARRANTS		17

DESCRIPTION OF DEPOSITARY SHARES		22

DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS		24

PLAN OF DISTRIBUTION		25

LEGAL MATTERS		26

EXPERTS		26


	Three months ended March 31, 2014		December 31,
	Three months ended March 31, 2014		2013		2012		2011		2010		2009
Fixed Charges and Preferred Dividends:

Total interest expense	$	8,296	$	25,112	$	21,578	$	18,663	$	38,136	$	46,462
Estimated interest in rent (1/3 rent)		1,031		3,405		2,998		2,661		2,305		2,323
Preferred dividends		2,438		7,394		—		—		—		5,383

Combined fixed charges and preferred dividends		11,765		35,911		24,576		21,324		40,441		54,168
Less interest on deposits		4,030		14,030		13,644		14,950		33,309		37,824

Combined fixed charges and preferred dividends excluding interest on deposits	$	7,735	$	21,881	$	10,932	$	6,374	$	7,132	$	16,344

Earnings:
Pre-tax income from continuing operations	$	44,350	$	187,803	$	188,575	$	118,468	$	56,949	$	36,909
Fixed charges and preferred dividends		11,765		35,911		24,576		21,324		40,441		54,168

Total earnings		56,115		223,714		213,151		139,792		97,390		91,077
Less interest on deposits		4,030		14,030		13,644		14,950		33,309		37,824

Total earnings excluding interest on deposits	$	52,085	$	209,684	$	199,507	$	124,842	$	64,081	$	53,253

Ratio of earnings to fixed charges and preferred share dividends, including interest on deposits		4.77		6.23		8.67		6.56		2.41		1.68
Ratio of earnings to fixed charges and preferred share dividends, excluding interest on deposits		6.73		9.58		18.25		19.59		8.98		3.26


BofA Merrill Lynch		J.P. Morgan		Morgan Stanley