TACOMA, Wash., Oct. 11, 2017 /PRNewswire/ -- Columbia Banking System, Inc. ("Columbia" NASDAQ: COLB) expects to report third quarter 2017 financial results before the market opens on Thursday, October 26, 2017. Management will discuss these results on a conference call scheduled for that afternoon at 1:00 p.m. Pacific Time (4:00 p.m. ET). Interested parties may listen to this discussion by joining one of two ways:

Option 1: Live-streamed event
Join the call through a web-based live streamed-event. If you choose this option, it is recommended that you listen through your phone or computer speakers and not dial into the conference number listed below in option 2.

Click here to register and save the event to your calendar: https://engage.vevent.com/rt/columbiabankingsystemincao~94426798

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Option 2: Dial-in only
Join the call on the day of the event using the toll-free number: 888-286-8956
Conference ID: 94426798

A replay of the call can be accessed beginning Friday, October 27, 2017 using the link below:
https://engage.vevent.com/rt/columbiabankingsystemincao~94426798

About Columbia Headquartered in Tacoma, Washington, Columbia Banking System, Inc. is the holding company of Columbia Bank, a Washington state-chartered full-service commercial bank with locations throughout Washington, Oregon and Idaho. For the eleventh consecutive year, the bank was named in 2017 as one of Puget Sound Business Journal's "Washington's Best Workplaces." Columbia ranked in the top 30 on the 2017 Forbes list of best banks.

More information about Columbia can be found on its website at www.columbiabank.com.

Investor Relations Contact:
InvestorRelations@columbiabank.com
253-305-1921

Note Regarding Forward Looking Statements
This news release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, which can be identified by words such as "may," "expected," "anticipate", "continue," or other comparable words. In addition, all statements other than statements of historical facts that address activities that Columbia expects or anticipates will or may occur in the future are forward-looking statements. Readers are encouraged to read the SEC reports of Columbia, particularly its form 10-K for the Fiscal Year ended December 31, 2016, for meaningful cautionary language discussing why actual results may vary materially from those anticipated by management.

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SOURCE Columbia Banking System, Inc.