Third Coast Bancshares, Inc.

TCBX·NYSE·$38.51Share Price as of 11/2·$543MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/04/26 10-QQ1 ended 03/31/2605/05/26 10-KFY 202503/04/26 10-QQ3 ended 09/30/2511/04/25 10-QQ2 ended 06/30/2508/05/25

Disclosures

8-KCurrent report10/21/26 8-KCurrent report10/13/26 8-KCurrent report10/07/26 8-KCurrent report09/18/26 8-KCurrent report09/17/26

Prospectuses and Registrations

S-8Registration of securities for employees06/23/26 S-8Registration of securities for employees02/20/26 424B3Prospectus12/19/25 S-4/ARegistration (business combination, amended)12/18/25 S-4Registration (business combination)11/26/25

Proxies

DEF 14ADefinitive proxy04/16/26 DEF 14ADefinitive proxy04/17/25 DEF 14ADefinitive proxy04/25/24 DEFA14AAdditional proxy materials05/23/23 DEF 14ADefinitive proxy04/20/23

Ownership

Form 4Insider transaction10/26/26 SC 13G/ABeneficial ownership (amended)07/30/26 Form 4Insider transaction06/16/26 144Proposed sale of securities06/12/26 Form 4Insider transaction05/26/26

Other

42542510/23/26 42542510/21/26 42542510/13/26 42542510/09/26 42542510/09/26