COLUMBIA BANKING SYSTEM, INC. 8-K

What Happened

• Columbia Banking System, Inc. (COLB) announced on January 22, 2026 that it issued a press release with its fourth quarter and full-year 2025 financial results. The company also furnished an investor slide presentation that it plans to review on its earnings conference call the same day.
• The company said it will include final financial statements and additional analyses for the year ended December 31, 2025 in its upcoming annual report on Form 10-K.

Key Details

• Date of disclosure: January 22, 2026.
• Materials furnished: Press release (Exhibit 99.1) and investor presentation slides (Exhibit 99.2).
• The slide presentation is intended for use on the January 22, 2026 earnings conference call.
• The press release and slides are furnished under Items 2.02 and 7.01 of Form 8-K and are not being “filed” for purposes of Section 18 of the Exchange Act.

Why It Matters

• Investors get Columbia’s preliminary quarterly and full-year 2025 results and management presentation now, which can inform near-term trading and evaluation. However, the company’s audited financial statements and more detailed analyses will be provided in the Form 10-K for the year ended December 31, 2025, so investors should review those final filings when available for a complete financial picture.