Stein Clint 4

What Happened
Clint Stein, Chair, President and CEO of Columbia Banking System, disposed of a total of 6,315 performance-based restricted stock units (PRSUs) that were forfeited because performance targets were not met, and 13,250 shares were withheld to satisfy tax obligations on vesting. The withholding entries reflect 7,615 shares withheld valued at $215,885 and 5,635 shares withheld valued at $159,752 (both at $28.35 per share), for a combined withholding value of $375,637. The forfeited PRSUs were reported as dispositions to the issuer and show $0 proceeds.

Key Details

• Transaction date: January 20, 2026; Form 4 filed January 22, 2026 (filed within the typical 2-business-day reporting window).
• Forfeited shares: 3,588 (per F1) and 2,727 (per F3) = 6,315 total forfeited PRSUs (performance targets not met).
• Tax withholding: 7,615 shares @ $28.35 = $215,885 and 5,635 shares @ $28.35 = $159,752; total withheld = 13,250 shares, $375,637 (per F2).
• Transaction codes: D = disposition to issuer (forfeiture), F = withholding for tax liability.
• Shares owned after transaction: not provided in the supplied filing details.
• Footnotes: F1 and F3 indicate forfeitures tied to PRSU grants on Feb 21, 2023 and Mar 14, 2023 due to TSR targets not met; F2 notes withholding to satisfy tax obligations on vested restricted stock units.

Context
These entries are not open-market sales; the D-coded items are forfeitures of performance awards and the F-coded items are shares withheld to cover taxes on vesting (a common administrative action). For retail investors, forfeitures reflect grant outcomes, not a direct cash sale by the insider, while share withholding reduces the insider's net share count.