Columbia Banking System Reports Q2 2026 Financial Results

What Happened
Columbia Banking System, Inc. announced its second quarter 2026 financial results on July 23, 2026 via a press release and an investor slide presentation. The press release is attached as Exhibit 99.1 and the investor presentation as Exhibit 99.2 to the Form 8-K. Columbia said it will include the final financial statements and additional analyses for the quarter ended June 30, 2026 in its upcoming Form 10‑Q for that period. The materials in the 8-K (press release and slides) are furnished under Regulation FD and are not being "filed" for purposes of Section 18 of the Exchange Act.

Key Details

• Date of disclosure: July 23, 2026.
• Period covered: Quarter ended June 30, 2026 (Q2 2026).
• Documents provided: Exhibit 99.1 (press release announcing Q2 2026 results) and Exhibit 99.2 (Q2 2026 investor presentation).
• Final financial statements and additional analyses will be provided in the company’s Form 10‑Q for the quarter.

Why It Matters
This 8‑K gives investors the company's preliminary corporate communication on Q2 2026 earnings (press release and slides) and signals that full, audited quarterly financial statements and reconciliations will follow in the Form 10‑Q. Retail investors should review the press release and presentation for initial earnings and guidance information but wait for the Form 10‑Q for the complete financial details and disclosures. The filing also notes the materials are furnished under Regulation FD and are not subject to Section 18 filing liability.