Columbia Banking System, Inc. (COLB) Institutional Ownership

Ownership Summary

Columbia Banking System, Inc. (NASDAQ:COLB) currently has 41 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• Institutional ownership in Columbia Banking System edged down to 1.0% in December 2025, compared to 132.9% in September 2025.
• In percentage terms, this reflects as a holdings change of -3.52% quarter on quarter, and a decrease of 89.62% year over year.
• During the quarter, 17 institutions bought more Columbia Banking System shares, 14 sold shares, and 10 of the 41 total investors held their position steady.
• The total number of shares held by institutions in Columbia Banking System decreased to 2.11Mn as of December 2025, a net change of down by 76.86K shares quarter on quarter, and down 190.67Mn shares year over year.
• With 523.35K shares, NORDEA INVESTMENT MANAGEMENT AB commands the largest institutional position in Columbia Banking System as of December 31, 2025, equating to 0.24% of the company.
• Among the most significant buyers of Columbia Banking System during December 2025 were Ausbil Investment Management Ltd (8.49K), Aspire Capital Advisors LLC (7.58K), Legacy Wealth Asset Management, LLC (7.51K), Hennion & Walsh Asset Management, Inc. (6.32K), Range Financial Group LLC (5.29K).
• Leading sellers of Columbia Banking System stock in December 2025 included NORDEA INVESTMENT MANAGEMENT AB (79.63K), SG Americas Securities, LLC (17.21K), Hunter Perkins Capital Management, LLC (16.17K), Gilman Hill Asset Management, LLC (3.10K), Retirement Systems of Alabama (2.57K).
• The top 10 institutional holders of Columbia Banking System for the quarter ending December 2025 included NORDEA INVESTMENT MANAGEMENT AB (523.35K), Retirement Systems of Alabama (358.99K), Gilman Hill Asset Management, LLC (319.69K), Hunter Perkins Capital Management, LLC (227.10K), Linden Thomas Advisory Services, LLC (122.43K), NISA INVESTMENT ADVISORS, LLC (90.30K), Louisiana State Employees Retirement System (82.80K), Range Financial Group LLC (78.08K), Quad-Cities Investment Group, LLC (45.28K), Ausbil Investment Management Ltd (44.00K).