Columbia Banking System, Inc.

Columbia Banking System, Inc.

COLB
Columbia Banking System, Inc.US flagNASDAQ Global Select
28.69
USD
-0.49
- -
6.83BMarket Cap

Columbia Banking System, Inc. (COLB) Stock Splits

Learn about Columbia Banking System, Inc.'s most recent 21-for-20 basis stock split on May 10, 2004. Understand the impact on shareholders and the company's market position.

Latest Stock Split Details

Key information about Columbia Banking System, Inc.'s most recent stock split

Split Date: 2004-05-10
Split Ratio: 21:20
Price Before Split: $24.02
Price After Split: $22.88

Impact of the Stock Split

Understanding what this means for shareholders

  • The total value of your investment remains the same
  • You now own 1.05 times more shares (a 21:20 ratio)
  • The price per share is reduced proportionally

Historical Stock Splits

A comprehensive history of Columbia Banking System, Inc.'s stock splits

DateRatioIs Reverse SplitPrice Before SplitPrice After Split
2004-05-1021:20No$24.02$22.88
2002-04-1221:20No$13.12$12.50
2001-05-2411:10No$14.50$13.19
2000-05-0811:10No$13.13$11.93
1999-05-1021:20No$18.38$17.50
1998-05-213:2No$37.50$25.00
1997-05-0621:20No$17.58$16.75
1996-05-0621:20No$15.43$14.69

About Columbia Banking System, Inc.

Company overview and industry information

Columbia Banking System, Inc. (COLB) operates in the Banks - Regional industry. The recent 21-for-20 stock split reflects the company's growth and strategy to make shares more accessible to a broader range of investors.

Banks - Regional
Go to Columbia Banking System, Inc. Summary

Last updated: 6/3/2026

This information is for educational purposes only. Always consult with a financial advisor before making investment decisions.