Columbia Banking System Announces $0.37 Per Common Share Dividend (Form 8-K)

Columbia Banking System Announces $0.37 Per Common Share Dividend

TACOMA, Wash., February 13, 2026 - Columbia Banking System, Inc. ("Columbia" Nasdaq: COLB), parent company of Columbia Bank, today announced its Board of Directors has approved a quarterly cash dividend in the amount of $0.37 per common share, payable March 16, 2026 to shareholders of record as of February 27, 2026.

About Columbia

Columbia Banking System, Inc. (Nasdaq: COLB) is headquartered in Tacoma, Washington and is the parent company of Columbia Bank, an award-winning western U.S. regional bank. Columbia Bank is the largest bank headquartered in the Northwest and one of the largest banks headquartered in the West with offices in Arizona, California, Colorado, Idaho, Nevada, Oregon, Texas, Utah, and Washington. Columbia Bank combines the resources, sophistication, and expertise of a national bank with a commitment to deliver superior, personalized service. The bank supports consumers and businesses through a full suite of services, including retail and commercial banking, Small Business Administration lending, institutional and corporate banking, and equipment leasing. Columbia Bank customers also have access to comprehensive investment and wealth management expertise as well as healthcare and private banking through Columbia Wealth Management. Learn more at www.columbiabankingsystem.com.

Investor Relations Contact:

Jacquelynne "Jacque" Bohlen

[email protected]

(503) 727-4100