Frank Namdar - Dec 31, 2023 Form 5 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)

Role
Chief Credit Officer
Signature
/s/ Lisa M. White, Attorney-in-fact
Stock symbol
COLB
Transactions as of
Dec 31, 2023
Transactions value $
$10,494
Form type
5
Date filed
2/14/2024, 09:56 PM
Previous filing
Mar 10, 2023
Next filing
Jan 3, 2024

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 Common Stock Award $7.56K +352 +14.76% $21.47 2.74K Mar 17, 2023 Common 352 Deferred Compensation F1, F2, F3
transaction COLB Common Stock Award -$22 -1 -0.04% $21.86 2.74K Apr 13, 2023 Common 1 Deferred Compensation F1, F3
transaction COLB Common Stock Award $975 +43 +1.57% $22.68 2.78K Jun 15, 2023 Common 43 Deferred Compensation F1, F3
transaction COLB Common Stock Award -$22 -1 -0.04% $21.75 2.78K Jul 14, 2023 Common 1 Deferred Compensation F1, F3
transaction COLB Common Stock Award $1K +49 +1.76% $20.49 2.83K Sep 11, 2023 Common 49 Deferred Compensation F1, F3
transaction COLB Common Stock Award -$20 -1 -0.04% $19.83 2.83K Oct 11, 2023 Common 1 Deferred Compensation F1, F3
transaction COLB Common Stock Award $1.02K +41 +1.45% $24.89 2.87K Dec 11, 2023 Common 41 Deferred Compensation F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Not required.
F2 2,385 shares in respect of deferred compensation plan obligations were previously inadvertently disclosed on Form 3 as held directly by the reporting person.
F3 Holdings reported include shares acquired in the issuer's Nonqualified Deferred Compensation Plan through dividend reinvestment, payroll deferrals and/or employer contributions in transactions that were exempt under Rule 16b-3(c).