BARUFFI KUMI YAMAMOTO sold COLB
February 2, 2026 · Form 4 insider transaction
BARUFFI KUMI YAMAMOTO sold 2,110 shares of Columbia Banking System, Inc. at $29.69 per share, a transaction worth $62.6K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
2,110
Price
$29.69
Total value
$62.6K
InsiderBARUFFI KUMI YAMAMOTO
Role—
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateFebruary 2, 2026
Filing dateFebruary 4, 2026
Shares owned after55,106
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Represents withholding of shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the shares granted pursuant to the terms of the performance restricted stock units vesting.