Columbia Banking System Announces Dividend of $0.36 Per Common Share

TACOMA, Washington., May 13, 2024 /PRNewswire/ — Columbia Banking System, Inc. (“Columbia” Nasdaq: COLB), parent company of Umpqua Bank, today announced that its board of directors has approved a quarterly cash dividend in the amount of $0.36 per common share, payable June 10, 2024to shareholders registered on the date May 24, 2024.

About Colombia
Colombia (Nasdaq: COLB) is headquartered in Tacoma, Washington and is the parent company of Umpqua Bank, an award-winning regional bank in the Western United States based in Lake Oswego, Oregon. Umpqua Bank is the largest bank headquartered in the Northwest and one of the largest banks headquartered in the West with locations in Arizona, California, Colorado, Idaho, Nevada, Oregon, UtahAnd Washington. With over 50 billion dollars of assets, Umpqua Bank combines the resources, sophistication and expertise of a national bank with a commitment to providing superior, personalized service. The bank supports consumers and businesses with a full range of services, including retail and commercial banking; Small Business Administration Loans; institutional and corporate banking; and equipment rental. Umpqua Bank clients also have access to comprehensive investment and wealth management expertise as well as healthcare and private banking services through Columbia Wealth Advisors and Columbia Trust Company , a division of Umpqua Bank. Learn more at www.columbiabankingsystem.com.

Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, which may be identified by words such as “may”, “expected”, “anticipate”, “continue” or other words comparable. Additionally, all statements other than statements of historical fact that address activities that Colombia what is expected or forecasted to occur or may occur in the future are forward-looking statements. Readers are encouraged to read SEC reports from Colombiain particular its Form 10-K for the closed financial year December 31, 2023for a significant cautionary statement explaining why actual results may differ materially from those anticipated by management.

SOURCE Columbia Banking System, Inc.