Torran B. Nixon - 04 Mar 2025 Form 4 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)

Signature
/s/ Lisa M. White, Attorney-in-fact
Issuer symbol
COLB
Transactions as of
04 Mar 2025
Transactions value $
-$116,461
Form type
4
Filing time
05 Mar 2025, 18:10:58 UTC
Previous filing
04 Mar 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction COLB Common Stock Sale -$116K -4.48K -4.1% $25.99 105K 04 Mar 2025 Direct F1
holding COLB Common Stock 3.65K 04 Mar 2025 by Nixon Family Trust
holding COLB Common Stock 1.59K 04 Mar 2025 by 401(k)
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Open market sale pursuant to a 10B5-1 Plan which was established by Reporting Person on December 3, 2024, in accordance with Rule 10B5-1 of the Securities Exchange Act of 1934, as amended.