Columbia Banking System Files 8-K on Financials

Ticker: COLB · Form: 8-K · Filed: Oct 30, 2025 · CIK: 887343

Sentiment: neutral

Topics: financial-condition, results-of-operations, sec-filing

Related Tickers: COLB

TL;DR

COLUMBIA BANKING SYSTEM (COLB) FILED AN 8-K ON 10/30/25 DETAILING FINANCIALS.

AI Summary

Columbia Banking System, Inc. filed an 8-K on October 30, 2025, reporting on its results of operations and financial condition. The filing also included disclosures related to Regulation FD and financial statements. The company is incorporated in Washington with its principal executive offices located in Tacoma.

Why It Matters

This 8-K filing provides investors with crucial updates on Columbia Banking System's financial performance and condition, impacting investment decisions.

Risk Assessment

Risk Level: low — This is a routine financial disclosure filing and does not inherently present new risks.

Key Numbers

Key Players & Entities

FAQ

What specific financial results are being reported in this 8-K?

The filing indicates it pertains to 'Results of Operations and Financial Condition' but does not detail the specific results within the provided text.

When was the earliest event reported in this filing?

The earliest event reported is October 30, 2025, which is also the date of the report.

What is the primary business of Columbia Banking System, Inc. according to the SIC code?

The Standard Industrial Classification (SIC) code indicates the company is in 'STATE COMMERCIAL BANKS [6022]'.

Where are Columbia Banking System, Inc.'s principal executive offices located?

The principal executive offices are located at 1301 A Street, Tacoma, Washington 98402-4200.

What is the filing date of this 8-K report?

The filing date of this 8-K report is October 30, 2025.

Filing Stats: 620 words · 2 min read · ~2 pages · Grade level 11 · Accepted 2025-10-30 16:51:27

Filing Documents

02 Results of Operations and Financial Condition

Item 2.02 Results of Operations and Financial Condition. On October 30, 2025, Columbia Banking System, Inc. issued a press release announcing third quarter 2025 financial results. The release is attached hereto as Exhibit 99.1. Columbia Banking System, Inc. will include final financial statements and additional analyses for the quarter ended September 30, 2025 as part of its quarterly report on Form 10-Q covering that period. The information contained in this paragraph, as well as Exhibit 99.1 referenced herein, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended (the "Securities Act").

01 Regulation FD Disclosure

Item 7.01 Regulation FD Disclosure. On October 30, 2025, Columbia Banking System, Inc. issued an investor slide presentation that it intends to review in conjunction with its earnings release conference call on October 30, 2025. The slides attached hereto as Exhibit 99.2 to this report and shall not be deemed to be "filed" for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

01 Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits. (d) EXHIBITS 99.1 Press Release announcing third quarter 2025 financial results dated October 30, 2025 99.2 Third Quarter 2025 Investor Presentation 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Columbia Banking System, Inc. (Registrant) Dated: October 30, 2025 By: /s/ Ronald L. Farnsworth Ronald L. Farnsworth Executive Vice President/Chief Financial Officer

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