OGNALL ANDREW H 4

What Happened

• Andrew Ognall, EVP & Chief Risk Officer of Columbia Banking System, had 2,381 restricted stock units (RSUs) convert into 2,381 common shares on March 13, 2026. The vested shares were valued at $26.23 each, totaling $62,454.
• To cover tax withholding, 951 of those shares were surrendered (disposed) at the same $26.23 price for $24,945. Net shares retained after withholding: 1,430 (approximate value $37,509).

Key Details

• Transaction date: March 13, 2026.
• Conversion/vesting: 2,381 RSUs -> 2,381 common shares (code M on the Form 4), reported value $26.23/share, $62,454 total.
• Tax withholding: 951 shares withheld/disposed (code F), $26.23/share, $24,945 total.
• Net new shares to insider: 1,430 shares (2,381 vested − 951 withheld), approx. $37,509 in value.
• Footnote: These came from a 7,142 RSU grant made Feb 25, 2025 that vests in three annual installments beginning Mar 13, 2026.
• Filing: Form 4 filed Mar 17, 2026 for a Mar 13, 2026 transaction — filed within the standard two-business-day window (timely).
• Shares owned after transaction: Not stated in the provided excerpt of the filing.

Context

• This was a routine RSU vesting and tax-withholding event (common for equity compensation), not an open-market buy or sell for investment purposes. The M code indicates conversion/exercise of a derivative (RSU conversion here) and the F code reflects shares withheld to satisfy tax obligations. Such transactions are generally administrative and do not by themselves indicate insider buying or selling for market reasons.