COLUMBIA BANKING SYSTEM, INC. 8-K

What Happened Columbia Banking System, Inc. (parent of Columbia Bank) filed an 8-K dated May 15, 2026, announcing its Board of Directors approved a quarterly cash dividend of $0.37 per common share. The dividend is payable June 15, 2026, to shareholders of record as of May 29, 2026. A press release announcing the dividend was attached as Exhibit 99.1.

Key Details

• Dividend amount: $0.37 per common share (quarterly cash dividend).
• Record date: May 29, 2026.
• Payment date: June 15, 2026.
• Filing date / notice: 8-K filed May 15, 2026; press release included as Exhibit 99.1.

Why It Matters This is a confirmed cash return of $0.37 per share that eligible shareholders will receive on June 15 if they hold shares by the May 29 record date. For income-focused investors, the announcement provides clarity on near-term cash yield. The filing is administrative notice of the Board’s action; it does not provide changes to financial results or other corporate actions.