Columbia Banking System, Inc. (COLB)

Western regional bank after a merger, all U.S. Read October 19, 2026 from the annual report for the period ending December 31, 2025, filed February 26, 2026. Ranked 11 of the 101 Financial Services companies read so far, by the share within reach now.

Columbia Banking System’s 6,005 associates run branches, commercial banking, wealth and trust services across nine western states, read as one banking pattern.

The figures on this page come from the company's own annual report and from BLS staffing patterns for its industries, never from a roster. They are estimates with a stated method. Nothing here says what the company will do: within reach is not a forecast of jobs lost or of savings.

What follows from the reading

Share of working time within reach of AI, on the long-run pace at four in five: 40% now, 58% at the end of 2027, 66% at the end of 2028, 68% at the end of 2030. By the patterns, the work is about 68% desk work, 23% people work and 9% body work. These are the site's industry estimates weighted by the shares below: estimates with a stated method and range, not a forecast of what the company will do. By the same patterns, at the end of 2028 about 32% of the working time stays with people (conversation, in-person and hands-on work), 60% becomes checking a model's work and 6% could be handed over with lighter checks, from the industries' own figures, not the company's roles.

Headcount

6,005 employees as of December 31, 2025 (stated). Columbia Bank operates in nine U.S. states (Arizona to Washington) and the filing describes no operations abroad; recorded as 1 with a flag.

The filing: “As of December 31, 2025, the Company employed 6,005 individuals, predominantly full-time associates.”

The workforce as industry patterns

What the filing says about the workforce: 6,005 associates, predominantly full-time, primarily in the footprint; the workforce rose 27% with the acquisition of Pacific Premier Bank in September 2025; turnover 20.8% for the combined company.

Companies read with the same leading pattern

Other companies whose largest staffing pattern is also Credit Intermediation and Related Activities (5221 and 5223 only), largest first, each read from its own annual report. Within reach now and at the end of 2028, long-run pace, four in five.

• JPMorgan Chase (JPM, 318,512 employees)37% now, 68% by 2028
• Citigroup (C, 226,000 employees)38% now, 68% by 2028
• Bank of America (BAC, 213,000 employees)39% now, 67% by 2028
• Wells Fargo (WFC, 205,000 employees)39% now, 67% by 2028
• Capital One Financial Corporation (COF, 76,300 employees)40% now, 66% by 2028
• U.S. Bancorp (USB, 68,520 employees)40% now, 66% by 2028
• The PNC Financial Services Group, Inc. (PNC, 55,333 employees)40% now, 66% by 2028
• Mastercard Incorporated (MA, 39,800 employees)40% now, 66% by 2028

What the filing says about AI

11 sentences in the filing name AI. The filing names AI eleven times, as risks: the development and use of AI by it, its vendors, clients and counterparties.

• “The development and use of Artificial Intelligence ("AI") presents risks and challenges that may adversely impact our business.”
• “We or our third-party (or fourth-party) vendors, clients or counterparties may develop or incorporate AI technology in certain business processes, services, or products.”
• “The development and use of AI presents a number of risks and challenges to our business.”
• “The legal and regulatory environment relating to AI is uncertain and rapidly evolving, both in the U.S. and internationally, and includes regulatory schemes targeted specifically at AI as well as provisions in intellectual property, privacy, consumer protection, employment, and other laws applicable to the use of AI.”
• “These evolving laws and regulations could require changes in our implementation of AI technology and increase our compliance costs and the risk of non-compliance.”

Its annual reports, year by year

Sentences naming AI in each annual report, counted by one rule, beside the median report in the Index that year. Each count links its filing. Every company, by year and sector

• Fiscal 20210median 0
• Fiscal 20220median 0
• Fiscal 202311median 1
• Fiscal 202411median 4
• Fiscal 202511median 10

Headcount by filing year

As reported in each year's annual report, with the filing. A year marked not read had no figure the reading could take from the report's text.

Limits of this reading

• The headcount series jumps from 4,721 to 6,005 with the Pacific Premier acquisition; the years are not like for like.
• The U.S. share is recorded as 1 from the filing’s nine-state footprint.

Source: the company's annual report on EDGAR, accession 0000887343-26-000088, the filing. Read by Claude Fable 5.1 under rubric version 1, by the method. A company can write to info@stratussc.com to have its reading checked against its filing.