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Home/The Filing Wire/Columbia Banking System, Inc./ SCHEDULE 13G/A

Beneficial Ownership Report · SCHEDULE 13G/A

Columbia Banking System, Inc.

COLBNASDAQEQUITYCurrent

Beneficial Ownership Report

Filed Aug 13, 2026Accepted Aug 13, 2026, 4:08 PM EDTCIK 887343Accession 0000902219-26-000265
View company →Permanent SEC source ↗
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Company context

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 locations in Arizona, California, Colorado, Idaho, Nevada, Oregon, 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.

Current securities

COLBNASDAQ · EQUITY · Current

Recent company filings

  1. Regulation FD DisclosureSep 30, 2026
  2. 4 filingAug 18, 2026
  3. Other EventsAug 14, 2026
  4. 10-Q filingAug 4, 2026
  5. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Regulation FD DisclosureJul 30, 2026

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