Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the quarterly period ended March 31, 2019 ¨ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the transition period from to Commission file number 001-34657 TEXAS CAPITAL BANCSHARES, INC. (Exact Name of Registrant as Specified in Its Charter) N/A (Former Name, Former Addre ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ý Annual Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the fiscal year ended December 31, 2018 ¨ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the transition period from to Commission file number 001-34657 TEXAS CAPITAL BANCSHARES, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 75-2679109 (State or other ...