COLUMBIA BANKING SYSTEM, INC.
For the period ended Sep 30, 2025. Filed Nov 6, 2025.
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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, 2025 · Filed Nov 6, 2025
COLB$31.00+1.7%Stored close · as of Nov 9, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Item 6. Exhibits
| Exhibit # | Description | Location |
| 2.1 | Agreement and Plan of Merger, dated as of April 23, 2025, by and among the Company, Pacific Premier, and Balboa Merger Sub, Inc. | Incorporated by reference to Exhibit 2.1 of the Company's Current Report on Form 8-K filed on April 25, 2025 |
| 3.1 | Restated Articles of Incorporation | Incorporated by reference to Exhibit 3.1 of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 |
| 3.2 | Amended and Restated Bylaws | Incorporated by reference to Exhibit 3.2 of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 |
| 4.1 | Specimen Common Stock Certificate | Incorporated by reference to Exhibit 4.3 of the Company's Registration Statement on Form S-3 filed on December 19, 2008 |
| 4.2 | Pursuant to Item 601(b) (4) (iii) (A) of Regulation S-K, copies of instruments defining the rights of holders of long-term debt and preferred securities are not filed. The Company agrees to furnish a copy thereof to the Securities and Exchange Commission upon request. | |
| 10.1 | Consulting Agreement, dated as of September 2, 2025, by and among Columbia, Columbia Bank and Steven R. Gardner | Incorporated by reference to Exhibit 10.1 of the Company's Current Report on Form 8-K filed on September 2, 2025 |
| 31.1 | Certification of Chief Executive Officer under Section 302 of the Sarbanes-Oxley Act of 2002 | Filed herewith |
| 31.2 | Certification of Chief Financial Officer under Section 302 of the Sarbanes-Oxley Act of 2002 | Filed herewith |
| 31.3 | Certification of Principal Accounting Officer under Section 302 of the Sarbanes-Oxley Act of 2002 | Filed herewith |
| 32 | Certification of Chief Executive Officer, Chief Financial Officer and Principal Accounting Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 | Filed herewith |
| 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.DEF | Inline XBRL Taxonomy Extension Definition Linkbase Document | |
| 101.LAB | Inline XBRL Taxonomy Extension Label Linkbase Document | |
| 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase Document | |
| 104 | The cover page from the Company's Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, formatted in Inline XBRL (included in Exhibit 101) |
** Management contract or compensatory plan or arrangement
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