Frank Namdar - Feb 15, 2024 Form 4 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)

Signature
/s/ Lisa M. White, Attorney-in-fact
Stock symbol
COLB
Transactions as of
Feb 15, 2024
Transactions value $
-$24,922
Form type
4
Date filed
2/20/2024, 09:11 PM
Previous filing
Jan 3, 2024
Next filing
Mar 1, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction COLB Common Stock Tax liability -$24.9K -1.31K -4.39% $19.01 28.6K Feb 15, 2024 Direct
holding COLB Common Stock 3.12K Feb 15, 2024 by 401(k) F1, F2

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
holding COLB Deferred Compensation Phantom Stock 2.87K Feb 15, 2024 Common 2.87K Deferred Compensation F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 2,602 shares in respect of 401(k) plan obligations were previously inadvertently disclosed on Form 3 as held directly by the reporting person.
F2 Holdings reported include shares acquired in the Umpqua Bank 401(k) and Profit Sharing Plan through dividend reinvestment, payroll deferrals and/or employer contributions.
F3 The deferred compensation plan phantom stock was accrued under the Registrant's deferred compensation plan and will be paid in cash in accordance with the terms of the deferred compensation plan following end of the reporting person's employment with the Registrant.
F4 A previous Form 5 filed by the reporting person inadvertently underreported the reporting person's deferred compensation plan phantom stock by one share due to an administrative error.