Columbia Banking System, Inc.

Columbia Banking System, Inc.

COLBยทNASDAQ

$28.59

-1.4%
Financial ServicesBanks - Regional

Columbia Banking System, Inc. operates as the bank holding company for Columbia State Bank that provides a range of banking services to small and medium-sized businesses, professionals, and individuals in the United States. It offers personal banking products and services, including noninterest and interest-bearing checking, savings, money market, and certificate of deposit accounts; home mortgages for purchases and refinances, home equity loans and lines of credit, and other personal loans; debit and credit cards; and digital banking services. The company also provides business banking products and services, such as checking, savings, interest-bearing money market, and certificate of deposit accounts; agricultural, asset-based, builder, and other commercial real estate loans, as well as loans guaranteed by the small business administration; and professional banking, treasury management, merchant card, and international banking services. In addition, it offers wealth management solutions that include financial planning services, such as asset allocation, net worth analysis, estate planning and preservation, education funding, and wealth transfer; long-term care, and life and disability insurance solutions; individual retirement solutions comprising retirement planning, retirement income strategies, and traditional and Roth individual retirement accounts; and business solutions, which comprise business retirement plans, key person insurance, business succession planning, and deferred compensation plans to individuals, families, and professional businesses. Further, the company provides fiduciary, investment, and administrative trust services, such as personal and special needs trusts, estate settlement, and investment agency and charitable management. It operates a network of 153 branch locations, including 68 in the state of Washington, 59 in Oregon, 15 in Idaho, and 11 in California. The company was founded in 1993 and is headquartered in Tacoma, Washington.

At a Glance

Live Snapshot
Market Cap$6.81B
EPS2.3100
P/E Ratio12.38
Earnings Date07/23/2026

SEC Filings

COLB - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
8-K

8-K 2026

N/A

May 15, 2026
May 14, 2026
2026
8-K

8-K 2026

N/A

May 15, 2026
May 15, 2026
2026
10-Q

10-Q 2026 Q1

Q1

May 05, 2026
March 31, 2026
2026
8-K

8-K 2026

N/A

April 23, 2026
April 23, 2026
2026
DEF 14A

DEF 14A 2026

N/A

March 31, 2026
May 14, 2026
2026
8-K

8-K 2026

N/A

March 31, 2026
March 31, 2026
2026
10-K

10-K 2025 FY

FY

February 26, 2026
December 31, 2025
2025
8-K

8-K 2026

N/A

February 13, 2026
February 13, 2026
2026
8-K

8-K 2026

N/A

January 22, 2026
January 22, 2026
2026
8-K

8-K 2025

N/A

December 31, 2025
December 31, 2025
2025
Showing 1 to 10 of 477 filings

Understanding SEC Filings

Essential regulatory documents for investors

SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.

10-K

Annual Report

Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.

Filed annually
10-Q

Quarterly Report

Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.

Filed 3 times per year
8-K

Current Report

Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.

Filed as events occur
DEF 14A

Proxy Statement

Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.

Filed before shareholder meetings
S-1

Registration Statement

Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.

Filed for new offerings
20-F

Foreign Annual Report

Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.

Foreign companies only

Why SEC Filings Matter

  • Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
  • Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
  • Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
  • Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
  • Historical Context: Years of filings provide trend analysis and context for current performance