COLUMBIA BANKING SYSTEM INC

For the period ended Dec 31, 2023. Filed Feb 27, 2024.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2023 · Filed Feb 27, 2024

COLB$31.00+1.7%Stored close · as of Nov 9, 2026

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Contents

ITEM 2. PROPERTIES

The Company’s principal properties include our corporate headquarters which is located at 13th & A Street, Tacoma, Washington and leased corporate office space in Lake Oswego, Oregon.

As of December 31, 2023, the Company had the following properties located throughout several counties in Oregon, Washington, California, Idaho, Nevada, Colorado, Arizona, and Utah:

	Owned Properties	Leased Properties	Total Properties
Customer-facing locations	169	149	318
Administrative locations	7	23	30
Total locations	176	172	348

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.