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BANR · Current Report (Form 8-K) · Filed September 18, 2025

Banner Corp — Current Report (Form 8-K)

Form
8-K
Filed
September 18, 2025
Period
Sep 16, 2025
Ticker
BANR
Accession
0000946673-25-000075
Boardroom Alpha · Filing insights

Banner amends Code of Ethics; effective Sept 16, 2025; adds clarifications on political use of resources, no waivers.

About Banner Corp
Market cap
$2.2B
1Y TSR
+6.8%
3Y TSR
+16.4%
Board grade
C
Sector
Financial Services
CEO
Mark J Grescovich
Last annual meeting: May 20, 2026 · View full Banner Corp profile →
banr-20250916

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): September 16, 2025

Banner Corporation
(Exact name of registrant as specified in its charter)

Washington
    000-26584
  91-1691604
(State or other jurisdiction of incorporation) (Commission File Number)(I.R.S. Employer Identification No.)
10 S. First Avenue, Walla Walla, Washington 99362
(Address of principal executive offices) (Zip Code)

Registrant's telephone number (including area code) (509) 527-3636

Not Applicable
(Former name or former address, if changed since last report)

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:

[ ]    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[ ]    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[ ]    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[ ]    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, par value $.01 per shareBANRThe NASDAQ Stock Market LLC

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 5.05 Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics.

On July 22, 2025, the Board of Directors of Banner Corporation (the “Company”) approved certain amendments to the Company’s Code of Ethics and Business Conduct, as reflected in an amended version of the Code of Ethics and Business Conduct (the “Code”). The Code governs the conduct of all officers, directors, and employees of the Company and its subsidiaries.

The amended Code is effective September 16, 2025, and does not result in any waiver with respect to any officer, director or employee of the Company from any provision of the Code as in effect prior to the Board’s action to amend the Code.

The Code was amended to, among other things, incorporate minor clarifications regarding the use of corporate resources for political purposes as well as expectations for ethical and professional behavior at work and when otherwise appearing to represent the Company.

The description of the amendments to the Code contained in this Current Report on Form 8-K is qualified in its entirety by reference to the full text of the Code, as amended, which is filed herewith as Exhibit 14.1.


Item 9.01 Financial Statements and Exhibits.*

(d)    Exhibits

14.1    Banner Corporation Code of Ethics and Business Conduct, as amended
104     Cover Page Interactive Data File (embedded within the Inline XBRL document)




SIGNATURES

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.




BANNER CORPORATION
Date: September 18, 2025
By: /s/ Robert G Butterfield
Robert G Butterfield
Executive Vice President, Treasurer and
Chief Financial Officer



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Reference

Frequently asked questions

When did Banner Corp file this 8-K?
Banner Corp (BANR) filed this Current Report (Form 8-K) with the SEC on September 18, 2025. The accession number assigned by EDGAR is 0000946673-25-000075.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Banner amends Code of Ethics; effective Sept 16, 2025; adds clarifications on political use of resources, no waivers. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Banner Corp's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Banner Corp has filed under CIK 946673, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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