COLUMBIA BANKING SYSTEM, INC.·4

Feb 18, 6:31 PM ET

Namdar Frank 4

4 · COLUMBIA BANKING SYSTEM, INC. · Filed Feb 18, 2026

Research Summary

AI-generated summary of this filing

Updated

Columbia Banking (COLB) EVP Frank Namdar Sells 1,169 Shares

What Happened

  • Frank Namdar, Executive Vice President and Chief Credit Officer of Columbia Banking System, disposed of 1,169 shares on Feb 15, 2026. The shares were disposed at $31.49 each for a total value of approximately $36,812. The Form 4 lists the transaction code F, indicating the shares were surrendered/withheld to satisfy a tax obligation related to an option exercise or other equity award (i.e., not an open-market sell motivated by liquidity).

Key Details

  • Transaction date and price: 2026-02-15 at $31.49 per share.
  • Shares disposed: 1,169; total value ≈ $36,812.
  • Transaction code: F — payment of exercise price or tax liability (shares withheld/surrendered).
  • Shares owned after transaction: not specified in the supplied filing details.
  • Filing date: Form 4 filed 2026-02-18. The filing shows the report date and filing date; no additional late-filing flag was provided in the summary data.

Context

  • Code F transactions are typically routine tax withholding following an option exercise or vesting event; they do not necessarily signal a change in the insider’s view of the company. This appears to be a withholding/disposition to cover taxes rather than a discretionary sale for investment reasons.

Insider Transaction Report

Form 4
Period: 2026-02-15
Namdar Frank
EVP Chief Credit Officer
Transactions
  • Tax Payment

    Common Stock

    2026-02-15$31.49/sh1,169$36,81232,278 total
Holdings
  • Common Stock

    (indirect: By 401(k))
    4,126
Signature
/s/ Andrea M. Newburn, Attorney-in-fact|2026-02-18

Documents

1 file
  • 4
    wk-form4_1771457462.xmlPrimary

    FORM 4