COLUMBIA BANKING SYSTEM, INC.·4

Mar 2, 9:00 PM ET

Moore Devine David 4

4 · COLUMBIA BANKING SYSTEM, INC. · Filed Mar 2, 2026

Research Summary

AI-generated summary of this filing

Updated

Columbia Banking (COLB) EVP David Moore Exercises Options (838 Shares Withheld)

What Happened
David Moore, EVP & Chief Marketing Officer of Columbia Banking System, used 838 shares (disposed) at $28.45 per share — roughly $23,841 — to satisfy tax withholding related to an option exercise. The Form 4 reports this disposition as code F, indicating shares were used to pay tax or exercise-related obligations rather than a typical open-market sale.

Key Details

  • Transaction date: 2026-03-01; filing date: 2026-03-02 (timely filing).
  • Price reported: $28.45 per share; total value of shares withheld ≈ $23,841.
  • Transaction code: F — payment of exercise price or tax liability (share withholding).
  • Shares owned after the transaction: not specified in the provided extract; see the full Form 4 filing for holdings.
  • This appears to be a routine tax-withholding/cashless settlement of an option exercise, not an open-market sale.

Context
For retail investors: when an insider exercises stock options, companies often withhold (or retire) some shares to cover taxes. Such withholding is routine and does not necessarily signal a view on the company’s stock price. This transaction is a common administrative step following an option exercise.

Insider Transaction Report

Form 4
Period: 2026-03-01
Moore Devine David
EVP Chief Marketing Officer
Transactions
  • Tax Payment

    Common Stock

    2026-03-01$28.45/sh838$23,84121,944 total
Signature
/s/ Andrea M. Newburn, Attorney-in-fact|2026-03-02

Documents

1 file
  • 4
    wk-form4_1772503207.xmlPrimary

    FORM 4