Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions.

Securities registered pursuant to Section 12(b) of the Act

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. [

Item 8.01 Other Events

Banner Corporation (“Banner”) announced today that it is changing the timing of its quarterly dividend announcements. Banner and its subsidiary banks are subject to various bank regulatory constraints and guidance regarding the payment of dividends, including limitations on dividends in excess of retained earnings and/or current quarter net income. In light of the uncertainty arising from the current pandemic and the related economic conditions in the industry, Banner has determined that it is prudent that its Board of Directors have full-quarter financial information available when considering the declaration of Banner’s quarterly dividends. As a result, Banner’s Board of Directors will now consider the declaration of quarterly dividends concurrent with the release of Banner’s quarterly earnings.

Item 9.01  Financial Statements and Exhibits

(d)         Exhibits

The following exhibit is being filed herewith and this list shall constitute the exhibit index:

Forward Looking Statement

This Form 8-K includes forward-looking statements within the meaning of the “Safe-Harbor” provisions of the Private Securities Litigation Reform Act of 1995. These statements are necessarily subject to risk and uncertainty and actual results could differ materially due to various risk factors, including those set forth from time to time in our filings with the SEC. Forward-looking statements can be identified by words such as “anticipates,” “intends,” “plans,” “seeks,” “believes,” “estimates,” “expects,” “target,” “projects,” “outlook,” “forecast,” “will,” “may,” “could,” “should,” “can” and similar references to future periods. In this press release we make forward-looking statements about dividends. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date such statements are made and based only on information then actually known to Banner.  Banner does not undertake and specifically disclaims any obligation to revise any forward-looking statements to reflect the occurrence of anticipated or unanticipated events or circumstances after the date of such statements.  These statements may relate to future financial performance, strategic plans or objectives, revenues or earnings projections, or other financial information.  By their nature, these statements are subject to numerous uncertainties that could cause actual results to differ materially from those anticipated in the statements and could negatively affect Banner's operating and stock price performance and its ability to declare dividends or to pay dividends at rates consistent with past practices.

Important factors that could cause actual results to differ materially from the results anticipated or projected include, but are not limited to, the following: (1)  the effect of the COVID-19 pandemic, including on Banner’s credit quality and business operations, as well as its impact on general economic and financial market conditions and other uncertainties resulting from the COVID-19 pandemic, such as the extent and duration of the impact on public health, the U.S. and global economies, and consumer and corporate customers, including economic activity, employment levels and market liquidity;  (2) the credit risks of lending activities, including changes in the level and direction of loan delinquencies and write-offs and changes in estimates of the adequacy of the allowance for credit losses, which could necessitate additional provisions for credit losses, resulting both from loans originated and loans acquired from other financial institutions; (3) results of examinations by regulatory authorities, including the possibility that any such regulatory authority may, among other things, require increases in the allowance for credit losses or writing down of assets or impose restrictions or penalties with respect to Banner's activities; (4) competitive pressures among

depository institutions; (5) interest rate movements and their impact on customer behavior and net interest margin; (6) the impact of repricing and competitors' pricing initiatives on loan and deposit products; (7) fluctuations in real estate values; (8) the ability to adapt successfully to technological changes to meet customers' needs and developments in the market place; (9) the ability to access cost-effective funding; (10) changes in financial markets; (11) changes in economic conditions in general and in Washington, Idaho, Oregon and California in particular; (12) the costs, effects and outcomes of litigation; (13) legislation or regulatory changes, including but not limited to the impact of the Dodd-Frank Act and regulations adopted thereunder, changes in regulatory capital requirements pursuant to the implementation of the Basel III capital standards, other governmental initiatives affecting the financial services industry and changes in federal and/or state tax laws or interpretations thereof by taxing authorities; (14) changes in accounting principles, policies or guidelines; (15) future acquisitions by Banner of other depository institutions or lines of business; (16) future goodwill impairment due to changes in Banner's business, changes in market conditions, including as a result of the COVID-19 pandemic or other factors; and (17) other economic, competitive, governmental, regulatory, and technological factors affecting our operations, pricing, products and services; and other risks detailed from time to time in our filings with the Securities and Exchange Commission including our Quarterly Reports on Form 10-Q and our Annual Reports on Form 10-K.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.