Judi Giem - 22 Jul 2025 Form 4 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)

Role
EVP CHRO
Signature
/s/ Lisa M. White, Attorney-in-fact
Issuer symbol
COLB
Transactions as of
22 Jul 2025
Net transactions value
+$350,072
Form type
4
Filing time
23 Jul 2025, 18:46:31 UTC
Previous filing
09 Jun 2025
Next filing
20 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Giem Judi EVP CHRO C/O COLUMBIA BANKING SYSTEM, INC., 1301 A STREET, TACOMA /s/ Lisa M. White, Attorney-in-fact 23 Jul 2025 0001813483

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction COLB Restricted Stock Unit Award $175,024 +7,179 $24.38 7,179 22 Jul 2025 Common Stock 7,179 Direct F1
transaction COLB Performance Restricted Stock Unit Award $87,524 +3,590 $24.38 3,590 22 Jul 2025 Common Stock 3,590 Direct F2
transaction COLB Performance Restricted Stock Unit Award $87,524 +3,590 +100% $24.38 7,180 22 Jul 2025 Common Stock 3,590 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted stock units granted 07/22/2025. The grant will vest 33.33% per year over three years.
F2 Performance restricted stock units granted 07/22/2025. The grant will vest approximately three years following the grant date based on the issuer's relative total shareholder return performance for fiscal years 2025-2027 compared to a Compensation Committee approved group of peers.
F3 Performance restricted stock units granted 07/22/2025. The grant will vest approximately three years following the grant date based on the issuer's relative return on tangible common equity for fiscal years 2025-2027 compared to a Compensation Committee approved group of peers.