Deer Aaron James 4

What Happened Aaron Deer, EVP and Chief Strategy & Innovation Officer of Columbia Banking System, delivered 918 shares to satisfy a tax liability related to equity compensation. The shares were valued at $28.45 each, totaling $26,117. This was a disposition for tax withholding (not an open-market sale).

Key Details

• Transaction date: 2026-03-01; Filing date: 2026-03-02 (filed the next day).
• Shares delivered/withheld: 918 at $28.45 per share; total value ≈ $26,117.
• Transaction code: F — payment of exercise price or tax liability by delivering shares (share withholding).
• Shares owned after transaction: Not specified in the provided filing summary; see the Form 4 for post-transaction holdings.
• No 10b5-1 plan or other trading plan was noted in the summary you provided.

Context Code F transactions are routine: companies (or insiders) often withhold a portion of shares when options are exercised or restricted stock vests to cover taxes. Such withholding is administrative and shouldn’t be read as an intentional buy or sell signal about the executive’s view of the company. For retail investors, outright purchases by insiders tend to carry more informational weight than tax-withholding dispositions.