X0508 4 2026-03-05 0 0001077428 TEXAS CAPITAL BANCSHARES INC/TX TCBI 0000900764 STALLINGS ROBERT W 2000 MCKINNEY AVENUE SUITE 700 DALLAS TX 75201 1 0 0 0 0 Depositary Shares for Series B Preferred Stock 2026-03-05 4 P 0 20000 22.69 A 169587 D Depositary Shares for Series B Preferred Stock 2026-03-06 4 P 0 5500 22.80 A 175087 D Common Stock 90039 I SCG Ventures LP Depositary Shares for Series B Preferred Stock 60000 I Stallings Foundation Common Stock 293291 D Depositary Shares for Series B Preferred Stock 360913 I SCG Ventures LP Each Depositary Share represents a 1/40th interest in a share of the issuer's 5.75% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series B, par value $.01 per share. The stated price represents the average based on prices ranging from $22.5621 to $22.8798. Upon request from the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The stated price represents the average based on prices ranging from $22.75 to $22.8009. Upon request from the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. SCG Ventures LP is owned by the RWS Investment Trust (49.5%), the LES Investment Trust (49.5%) and Stallings Management LLC (1%), its general partner. Stallings Management LLC is owned by Mr. and Mrs. Stallings (100%). The Stallings Foundation is a charitable foundation of which Mr. Stallings is an officer. Mary Helen Hall, attorney-in-fact 2026-03-09