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PROSPERITY BANCSHARES INC

For the period ended Sep 30, 2026. Filed Nov 9, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 9, 2026

PB$72.85+1.4%Stored close · as of Nov 9, 2026

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Item 6. Exhibits

ExhibitNumberDescription of Exhibit
2.1*Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc. and Stellar Bancorp, Inc. (incorporated herein by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on January 29, 2026 (File No. 001-35388))
3.1Amended and Restated Articles of Incorporation of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 3.1 to the Company’s Registration Statement on Form S-1 (Registration No. 333-63267) (the “Registration Statement”))
3.2Articles of Amendment to Amended and Restated Articles of Incorporation of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 3.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2006 (File No. 001-35388))
3.3Amended and Restated Bylaws of Prosperity Bancshares, Inc. (incorporated herein by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on June 20, 2019 (File No. 001-35388))
4.1Form of certificate representing shares of Bancshares common stock (incorporated herein by reference to Exhibit 4 to the Registration Statement)
31.1**Certification of the Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended
31.2**Certification of the Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended
32.1***Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2***Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS**Inline XBRL Instance Document – The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document
101.SCH**Inline XBRL Taxonomy Extension Schema Document
101.CAL**Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB**Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE**Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF**Inline XBRL Taxonomy Extension Definition Linkbase Document
104The cover page from the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2026 (formatted as Inline XBRL and contained in Exhibits 101)
  • Pursuant to Item 601(a)(5) of Regulation S-K, certain schedules and similar attachments have been omitted. The Company hereby agrees to furnish a copy of any omitted schedule or similar attachment to the SEC upon request.

** Filed with this Quarterly Report on Form 10-Q.

*** Furnished with this Quarterly Report on Form 10-Q.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.