KUMI YAMAMOTO BARUFFI - EVP General Counsel, Corp Sec at COLUMBIA BANKING SYSTEM, INC.

Insider Transactions and Holdings

Entity Type
Individual
Role
EVP General Counsel, Corp Sec
Issuer Symbol
COLB on Nasdaq
All Insider Reports
All Insider Reports

There are no Buy or Sell transactions made by KUMI YAMAMOTO BARUFFI since 09 Mar 2025

Holdings reported by KUMI YAMAMOTO BARUFFI for COLUMBIA BANKING SYSTEM, INC.

Security Num Shares Value Price $ Transaction Date Ownership Underlying Class Underlying Amount
Common Stock 52,271 $1,487,109 $28.45 01 Mar 2026 Direct
Restricted Stock Unit 15,464 $483,095 $31.24 18 Feb 2026 Direct Common Stock

Transactions reported by KUMI YAMAMOTO BARUFFI for COLUMBIA BANKING SYSTEM, INC.

Sym Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.