of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

Chief Operating Officer — John Cummings: John Cummings was promoted to Chief Operating Officer.

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

of Form 8-K and Item 601(a)(5) of Regulation S-K. The Company will provide, on a supplemental basis, a copy of any omitted schedule to the Securities and Exchange Commission or its staff upon request. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: February 27, 2026 TEXAS CAPITAL BANCSHARES, INC. By: /s/ J. Matthew Scurlock J. Matthew Scurlock…

Other Events. On February 27, 2026, Texas Capital Bancshares, Inc. (the “Company”) completed the public offer and sale (the “Offering”) of $400,000,000 aggregate principal amount of 5.301% Fixed-to-Floating Rate Senior Notes due 2032 (the “Notes”). The Notes were offered and sold pursuant to the Company’s registration statement on Form S-3 (Registration No. 333-277061) (the “Registration Statement”) filed with the Securities and Exchange Commission on February 14, 2024, and the prospectus con…

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

Other Events. Announcement of New Share Repurchase Program for 2026 On December 1, 2025, the board of directors of Texas Capital Bancshares, Inc. (the “Company’) authorized a new share repurchase program for calendar year 2026 under which the Company may repurchase up to $200.0 million of shares of its outstanding common stock. Any repurchases under the repurchase program will be made in accordance with applicable securities laws from time to time in open market or private transactions. The e…

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

Other Events. Announcement of Share Repurchase Program On January 22, 2025, the Company’s board of directors authorized a new share repurchase program under which the Company may repurchase up to $200.0 million in shares of its outstanding common stock through January 31, 2026. Any repurchases under the repurchase program will be made in accordance with applicable securities laws from time to time in open market or private transactions. The extent to which the Company repurchases shares, and…

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

CEO — Robert C. Holmes: The filing discloses an amended and restated employment agreement with the sitting CEO, which is a compensatory arrangement rather than a departure, appointment, or board election.

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

Director — Mark Midkiff: The filing announces the election of a new independent director to the Board, which is a routine governance event and not a departure of a sitting executive.

Chief Risk Officer — Tim J. Storms: The Chief Risk Officer is retiring with a planned transition period and consulting arrangement, indicating an orderly succession rather than a sudden loss.

of this report (including Exhibits 99.1 and 99.2) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.