| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MITCHELL M CHRISTIAN | Director | C/O COLUMBIA BANKING SYSTEM, INC., 1301 A STREET, TACOMA | /s/ Lisa M. White, Attorney-in-fact | 03 Sep 2025 | 0001284574 |
No securities are beneficially owned.
Exhibit 24 - Power of Attorney