Prosperity Bancshares Inc.

PB·NYSE·$69.85Share Price as of 11/2·$7BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/06/26 10-QQ1 ended 03/31/2605/11/26 10-KFY 202502/26/26 10-QQ3 ended 09/30/2511/07/25 10-QQ2 ended 06/30/2508/07/25

Disclosures

8-KCurrent report10/28/26 8-K/ACurrent report (amended)08/31/26 8-KCurrent report07/29/26 8-KCurrent report07/01/26 8-KCurrent report04/29/26

Prospectuses and Registrations

424B3Prospectus04/21/26 S-4/ARegistration (business combination, amended)04/17/26 S-4Registration (business combination)04/03/26 424B3Prospectus12/18/25 S-4/ARegistration (business combination, amended)12/16/25

Proxies

DEF 14ADefinitive proxy03/16/26 DEF 14ADefinitive proxy03/13/25 DEF 14ADefinitive proxy03/14/24 DEF 14ADefinitive proxy03/15/23 DEF 14ADefinitive proxy03/14/22

Ownership

Form 4Insider transaction10/28/26 Form 4Insider transaction10/22/26 Form 4Insider transaction10/14/26 Form 4Insider transaction10/08/26 Form 4Insider transaction10/01/26

Other

11-KEmployee stock purchase plan report06/22/26 42542504/30/26 42542504/22/26 EFFECTRequest for effectiveness04/21/26 CORRESPCorrespondence with the SEC04/17/26