Sec Form 4 Filing - Scurlock John Matthew @ TEXAS CAPITAL BANCSHARES INC/TX - 2023-06-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Scurlock John Matthew 2. Issuer Name and Ticker or Trading Symbol TEXAS CAPITAL BANCSHARES INC/TX [ TCBI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 2000 MCKINNEY AVENUE, SUITE 700 3. Date of Earliest Transaction (MM/DD/YY) 06/01/2023 (Street) DALLAS, TX75201 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 06/01/2023 M 240 A $ 0 7,045 ( 1 ) D Common Stock 06/01/2023 F 59 D $ 47.58 6,986 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units $ 0 06/01/2023 M 240 06/01/2022( 2 ) ( 3 ) Common Stock 240 $ 0 240 D Restricted Stock Units $ 0 02/11/2021( 4 ) ( 3 ) Common Stock 556 556 D Restricted Stock Units $ 0 06/29/2021( 5 ) ( 3 ) Common Stock 2,012 2,012 D Restricted Stock Units $ 0 02/26/2022( 6 ) ( 3 ) Common Stock 755 755 D Restricted Stock Units $ 0 02/08/2023( 7 ) ( 3 ) Common Stock 1,880 1,880 D Restricted Stock Units $ 0 02/09/2024( 8 ) ( 3 ) Common Stock 4,106 4,106 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Scurlock John Matthew 2000 MCKINNEY AVENUE SUITE 700 DALLAS, TX75201 Chief Financial Officer Signatures Mary Helen Hall, attorney-in-fact 06/02/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Beneficial ownership has been adjusted by 9,789 shares representing underlying RSUs previously included in Table I that will, going forward, be reflected in Table II as derivative securities. ( 2 )The restricted stock units were granted on June 1, 2021 and vest in three equal annual installments beginning June 1, 2022. ( 3 )N/A ( 4 )The restricted stock units were granted February 11, 2020 and vest in four equal annual installments beginning February 11, 2021. ( 5 )The restricted stock units were granted on June 29, 2020 and vest in three equal annual installments beginning June 29, 2021. ( 6 )The restricted stock units were granted on February 26, 2021 and vest in four equal annual installments beginning February 26, 2022. ( 7 )The restricted stock units were granted on February 8, 2022 and vest in three equal annual installments beginning February 8, 2023. ( 8 )The restricted stock units were granted on February 9, 2023 and vest in three equal annual installments beginning February 9, 2024.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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