Banner Corporation filed SEC Form 8-K: Other Events, Financial Statements and Exhibits

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. [  ]

Prior to joining the Bank, Mr. Borrecco was Regional President for California at Washington Federal, Inc. from March 2023 through August 2024, where he was based in Sacramento, California. Previously, he was President and Chief Executive Officer at Great Western Bancorp in Sioux Falls, South Dakota, from March 2020 to January 2022. Mr. Borrecco served as President and Chief Executive Officer for Rabobank, NA in Roseville, California, from December 2015 through November 2019, where he had served as Executive Vice President and Chief Banking Officer from August 2011 to November 2015. Mr. Borrecco has more than 25 years of experience in the financial services industry. He earned a B.A. in Economics from California State University, Fresno.

99.1

Banner Bank Press Release Announcing the Appointment of Mark Borrecco as Executive Vice President and Chief Banking Officer.

2

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.

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