BANR / Banner Corporation - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

شركة راية
US ˙ NasdaqGS ˙ US06652V2088

الإحصائيات الأساسية
CIK 946673
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Banner Corporation
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
September 3, 2025 EX-99.1

Millicent Tracey Joins Banner Corporation Board of Directors

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Millicent Tracey Joins Banner Corporation Board of Directors (WALLA WALLA, WASH.)—September 3, 2025—Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today announced that Millicent Tracey has been appointed to the Board of Directors effective September

September 3, 2025 8-K

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): August 29, 2025 Banner Corporatio

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): August 29, 2025 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fi

August 5, 2025 8-K

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): August 1, 2025 Banner Corporation

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): August 1, 2025 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fil

August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORP

July 24, 2025 EX-99.1

Banner Corporation Announces Stock Repurchase Program

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces Stock Repurchase Program Walla Walla, Wash – July 24, 2025 - Banner Corporation (NASDAQ GSM: BANR) (“Company”), the parent company of Banner Bank, today announced that its Board of Directors has authorized the repurchase of up to 1,729,199 shares of the Comp

July 24, 2025 8-K

Financial Statements and Exhibits, Other Events

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): July 24, 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

July 16, 2025 EX-99.2

S e c o n d Q u a r t e r 2 0 2 5 Since 1890 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s plans, objectives or goals for future operations, products or services, f

S e c o n d Q u a r t e r 2 0 2 5 Since 1890 Disclosure Statement 1 This presentation includes forward-looking statements.

July 16, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): July 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

July 16, 2025 EX-99.1

Banner Corporation Reports Net Income of $45.5 Million, or $1.31 Per Diluted Share, for Second Quarter 2025; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $45.5 Million, or $1.31 Per Diluted Share, for Second Quarter 2025; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - July 16, 2025 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today r

June 10, 2025 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

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): June 9, 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

June 10, 2025 EX-16.1

Moss Adams

Exhibit 16.1 June 9, 2025 U.S. Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by Banner Corporation included under Item 4.01 of its Current Report on Form 8-K dated June 9, 2025, to be filed with the Securities and Exchange Commission. We agree with the statements concerning our Firm contained therein. Sincerely, /s/

June 9, 2025 8-K

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): June 9, 2025 Banner Corporation (

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): June 9, 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

May 28, 2025 8-K

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): May 22, 2025 Banner Corporation (

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): May 22, 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

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER COR

April 16, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): April 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 Fil

April 16, 2025 EX-99.1

Banner Corporation Reports Net Income of $45.1 Million, or $1.30 Per Diluted Share, for First Quarter 2025; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $45.1 Million, or $1.30 Per Diluted Share, for First Quarter 2025; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - April 16, 2025 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today r

April 16, 2025 EX-99.2

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah First Quarter 2025 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s pl

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah First Quarter 2025 Disclosure Statement 1 This presentation includes forward-looking statements.

April 9, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ☒ Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to § 240.

April 9, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ☒ Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to § 240.

February 26, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER CORPORATION (Exact na

February 26, 2025 EX-19

olicies and

EXHIBIT 19 BANNER CORPORATION POLICY AND PROCEDURES GOVERNING TRADING IN SECURITIES AND CONFIDENTIALITY OF INSIDE INFORMATION FOR DIRECTORS, OFFICERS AND EMPLOYEES (“INSIDER TRADING POLICY”) Amended and Restated with Board Approval on February 26, 2025 BANNER CORPORATION CONFIDENTIAL Contents 1.

February 26, 2025 EX-21

Subsidiaries of the Registrant.

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT December 31, 2024 Parent Banner Corporation Percentage of Jurisdiction of State of Subsidiaries Ownership Incorporation Banner Bank (1) 100 % Washington Banner Capital Trusts V, VI, and VII (1) 100 % Delaware Springer Development, LLC (2) 100 % Washington Community Financial Corporation (2) 100 % Oregon Greater Sacramento Bancorp Statutory Trust II (1) 100 % Delaware Mission Oaks Statutory Trust I (1) 100 % Delaware (1) Wholly-owned by Banner Corporation.

February 26, 2025 EX-4.2

Description of Capital Stock

EXHIBIT 4.2 DESCRIPTION OF CAPITAL STOCK The following information summarizes certain features and rights of our capital stock. The summary does not purport to be exhaustive and is qualified in its entirety by reference to our articles of incorporation, bylaws, and to applicable Washington law. General Banner’s authorized capital stock consists of: • 50,000,000 shares of common stock, $0.01 par va

January 22, 2025 EX-99.2

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Fourth Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s p

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Fourth Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements.

January 22, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): January 22, 2025 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission F

January 22, 2025 EX-99.1

Banner Corporation Reports Net Income of $46.4 Million, or $1.34 Per Diluted Share, for Fourth Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $46.4 Million, or $1.34 Per Diluted Share, for Fourth Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - January 22, 2025 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, toda

November 8, 2024 EX-99

JOINT FILING AGREEMENT

JOINT FILING AGREEMENT The undersigned hereby agree that this Schedule 13G (the “Schedule 13G”) with respect to the common stock of Banner Corporation is, and any additional amendment thereto signed by each of the undersigned shall be, filed on behalf of each undersigned pursuant to and in accordance with the provisions of 13d-1(k) under the Securities Exchange Act of 1934, as amended, and that all subsequent amendments to the Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.

November 8, 2024 SC 13G

BANR / Banner Corporation / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Banner Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 06652V208 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

November 5, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER

October 16, 2024 EX-99.2

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Third Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s pl

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Third Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements.

October 16, 2024 EX-99.1

Banner Corporation Reports Net Income of $45.2 Million, or $1.30 Per Diluted Share, for Third Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $45.2 Million, or $1.30 Per Diluted Share, for Third Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - October 16, 2024 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today

October 16, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): October 16, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission F

September 12, 2024 EX-99.1

Banner Adds Chief Banking Officer to Leadership Team; Hires Borrecco to Fill Role

Exhibit 99.1 MEDIA RELEASE FOR IMMEDIATE RELEASE September 12, 2024 Contact: Kelly McPhee, Senior Vice President, Communications, (509) 991-0575 or [email protected] Banner Adds Chief Banking Officer to Leadership Team; Hires Borrecco to Fill Role (Walla Walla, Wash.) The Banner Bank executive leadership team is expanding to include a Chief Banking Officer and Mark Borrecco has been hire

September 12, 2024 8-K

Financial Statements and Exhibits, Other Events

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 10, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORP

July 25, 2024 8-K

Financial Statements and Exhibits, Other Events

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): July 25, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission File

July 25, 2024 EX-99.1

Banner Corporation Announces Stock Repurchase Program

EX-99.1 2 banrpressreleasesharerepur.htm EX-99.1 Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces Stock Repurchase Program Walla Walla, Wash – July 25, 2024 - Banner Corporation (NASDAQ GSM: BANR) (“Company”), the parent company of Banner Bank, today announced that its Board of Directors has authorized the

July 17, 2024 EX-99.2

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Second Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s p

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Second Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements.

July 17, 2024 EX-99.1

Banner Corporation Reports Net Income of $39.8 Million, or $1.15 Per Diluted Share, for Second Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $39.8 Million, or $1.15 Per Diluted Share, for Second Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - July 17, 2024 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today r

July 17, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): July 17, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission File

May 30, 2024 EX-99.1

Chief Risk Officer Jim Costa promoted to expanded role including Chief Operating Officer

Exhibit 99.1 Contact: Kelly McPhee, Senior Vice President, PR & Communications [email protected] Chief Risk Officer Jim Costa promoted to expanded role including Chief Operating Officer (Walla Walla, Wash.) The Banner Bank executive leadership team is pleased to announce Executive Vice President Jim Costa has been promoted to Chief Operating Officer in addition to his role as Chief Risk

May 30, 2024 8-K

SECURITIES AND EXCHANGE COMMISSION

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): May 26, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) Fil

May 24, 2024 EX-99.1

Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board Walla Walla, Wash – May 24, 2024 – Banner Corporation (NASDAQ GSM: BANR), (“Banner” or the “Company”), the parent company of Banner Bank, today announc

May 24, 2024 8-K

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): May 22, 2024 Banner Corporation (

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): May 22, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission File (I.R.S. Employer o

May 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER COR

April 17, 2024 EX-99.1

Banner Corporation Reports Net Income of $37.6 Million, or $1.09 Per Diluted Share, for First Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $37.6 Million, or $1.09 Per Diluted Share, for First Quarter 2024; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - April 17, 2024 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today r

April 17, 2024 EX-99.2

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah First Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s pl

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah First Quarter 2024 Disclosure Statement 1 This presentation includes forward-looking statements.

April 17, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): April 17, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fil

April 9, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ☒       Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to § 240.

April 9, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ☒       Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ☒ Definitive additional materials ☐ Soliciting material pursuant to § 240.

February 23, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER CORPORATION (Exact na

February 23, 2024 EX-10.O

2020 Banner Corporation Amended and Restated Deferred Compensation Plan [incorporated by reference to exhibit 10{o} filed with the Annual Report on Form 10-K for the year ended December 31, 2023 (File No. 000-26584)].

2020 Banner Corporation Amended and Restated Deferred Compensation Plan January 1, 2021 IMPORTANT NOTE This document has not been approved by the Department of Labor, Internal Revenue Service or any other governmental entity.

February 23, 2024 EX-4.2

Description of Capital Stock

EXHIBIT 4.2 DESCRIPTION OF CAPITAL STOCK The following information summarizes certain features and rights of our capital stock. The summary does not purport to be exhaustive and is qualified in its entirety by reference to our articles of incorporation, bylaws, and to applicable Washington law. General Banner’s authorized capital stock consists of: • 50,000,000 shares of common stock, $0.01 par va

February 23, 2024 EX-97

Policy Relating to Recovery of Erroneously Awarded Compensation.

BANNER CORPORATION Compensation Recovery Policy Senior Management Committee: Executive Management Committee Policy Owner: Kayleen Kohler, Chief Human Resources and Diversity Officer Policy Contact: Kayleen Kohler, Chief Human Resources and Diversity Officer Senior Management Committee Approval Date: December 1, 2023 Board Approval Date: October 23, 2023 Next Board Approval Date: December 2024 1 Table of Contents 1.

February 23, 2024 EX-21

Subsidiaries of the Registrant.

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT December 31, 2023 Parent Banner Corporation Percentage of Jurisdiction of State of Subsidiaries Ownership Incorporation Banner Bank (1) 100 % Washington Banner Capital Trusts V, VI, and VII (1) 100 % Delaware Springer Development, LLC (2) 100 % Washington Community Financial Corporation (2) 100 % Oregon Greater Sacramento Bancorp Statutory Trust II (1) 100 % Delaware Mission Oaks Statutory Trust I (1) 100 % Delaware (1) Wholly-owned by Banner Corporation.

February 13, 2024 SC 13G/A

BANR / Banner Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0407-bannercorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: Banner Corp Title of Class of Securities: Common Stock CUSIP Number: 06652V208 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pu

February 9, 2024 SC 13G/A

BANR / Banner Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* Banner Corp (Name of Issuer) Common Stock (Title of Class of Securities) 06652V208 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

January 18, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): January 18, 2024 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission F

January 18, 2024 EX-99.1

Banner Corporation Reports Net Income of $42.6 Million, or $1.24 Per Diluted Share, for Fourth Quarter 2023; Earns $183.6 Million in Net Income, or $5.33 Per Diluted Share, for the Full Year of 2023; Declares Quarterly Cash Dividend of $0.48 Per Shar

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $42.6 Million, or $1.24 Per Diluted Share, for Fourth Quarter 2023; Earns $183.6 Million in Net Income, or $5.33 Per Diluted Share, for the Full Year of 2023; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - January 18, 2024

January 18, 2024 EX-99.2

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Fourth Quarter 2023 Disclosure Statement 1 This presentation includes forward-looking statements. These statements include descriptions of management’s p

Photo by Salvador Saldana Photo by Yvonne McDonald Photo by Maria DeVecchio Photo by Siti Alimah Fourth Quarter 2023 Disclosure Statement 1 This presentation includes forward-looking statements.

December 22, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): December 20, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporati

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER

October 18, 2023 EX-99.2

• • • • • • • • • • ACL - Loans 144.7 2.0 0.3 (0.7) 2.9 147.0 ACL - Unfunded Commitments 14.7 0.2 0.1 0.0 0.3 15.0 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.3 ACL - AFS Securities 2.0 0.0 (1.3) 0.0 (1.3) 0.8 Total ACL 161.7 2.2 (0.8) (0.7) 2.0

• • • • • • • • • • ACL - Loans 144.7 2.0 0.3 (0.7) 2.9 147.0 ACL - Unfunded Commitments 14.7 0.2 0.1 0.0 0.3 15.0 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.3 ACL - AFS Securities 2.0 0.0 (1.3) 0.0 (1.3) 0.8 Total ACL 161.7 2.2 (0.8) (0.7) 2.0 163.1 $161.7 $163.1 PRE-TAX PRE-PROVISION EARNINGS Sep 30, 2023 Jun 30, 2023 Sep 30, 2022 Income before provision for income taxes (GAAP) 56,506$ 48,

October 18, 2023 EX-99.1

Banner Corporation Reports Net Income of $45.9 Million, or $1.33 Per Diluted Share, for Third Quarter 2023; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $45.9 Million, or $1.33 Per Diluted Share, for Third Quarter 2023; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - October 18, 2023 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today

October 18, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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): October 18, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission F

September 18, 2023 EX-14.1

Banner Corporation Code of Ethics and Business Conduct, as amended

Exhibit 14.1

September 18, 2023 8-K

Financial Statements and Exhibits

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 18, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporat

August 30, 2023 EX-10.2

Form of Director Restricted Stock Award Agreement under the Banner Corporation 2023 Omnibus Incentive Plan [incorporated by reference to Exhibit 10.2 included in the Registration Statement on Form S-8 dated August 30, 2023 (File No. 333-274273)].

BANNER CORPORATION 2023 OMNIBUS INCENTIVE PLAN RESTRICTED STOCK AWARD AGREEMENT RS No.

August 30, 2023 EX-10.5

Form of Executive Restricted Stock Unit Performance Award Agreement under the Banner Corporation 2023 Omnibus Incentive Plan [incorporated by reference to Exhibit 10.5 included in the Registration Statement on Form S-8 dated August 30, 2023 (File No. 333-274273)].

BANNER CORPORATION 2023 OMNIBUS INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT (PERFORMANCE AWARD) RSU No.

August 30, 2023 S-8

As filed with the Securities and Exchange Commission on August 30, 2023.

As filed with the Securities and Exchange Commission on August 30, 2023. Registration No. 333- SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 BANNER CORPORATION (Exact name of registrant as specified in its charter) WASHINGTON 91-1691604 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identi

August 30, 2023 EX-10.3

Form of Director Restricted Stock Unit Award Agreement under the Banner Corporation 2023 Omnibus Incentive Plan [incorporated by reference to Exhibit 10.3 included in the Registration Statement on Form S-8 dated August 30, 2023 (File No. 333-274273)].

BANNER CORPORATION 2023 OMNIBUS INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT RSU No.

August 30, 2023 EX-10.1

2023 Omnibus Incentive Plan [incorporated by reference to Exhibit 10.1 included in the Registration Statement on Form S-8 dated August 30, 2023 (File No. 333-274273)].

BANNER CORPORATION 2023 OMNIBUS INCENTIVE PLAN TABLE OF CONTENTS Page ARTICLE I ESTABLISHMENT, PURPOSE AND DURATION 1 Section 1.

August 30, 2023 EX-10.4

Form of Employee Restricted Stock Unit Award Agreement under the Banner Corporation 2023 Omnibus Incentive Plan [incorporated by reference to Exhibit 10.4 included in the Registration Statement on Form S-8 dated August 30, 2023 (File No. 333-274273)].

BANNER CORPORATION 2023 OMNIBUS INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT RSU No.

August 30, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 (Form Type) Banner Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, par value

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORP

August 3, 2023 EX-10.J

Amended and Restated Executive Severance and Change in Control Plan and Summary Plan Description (Amended and Restated effective as of July 1, 2023) [incorporated by reference to exhibit 10{j} included in the Form 10-Q dated June 30, 2023 (File No. 000-26584)]

EXHIBIT 10 {j} BANNER BANK AMENDED AND RESTATED EXECUTIVE SEVERANCE AND CHANGE IN CONTROL PLAN AND SUMMARY PLAN DESCRIPTION (Amended and Restated effective as of July 1, 2023) TABLE OF CONTENTS Page Section 1.

July 19, 2023 EX-99.2

• • • • • • • • • ACL - Loans 141.5 4.4 (1.1) (0.3) 3.6 144.7 ACL - Unfunded Commitments 13.4 (0.1) 1.4 0.0 1.2 14.7 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.4 ACL - AFS Securities 0.0 0.0 2.0 0.0 2.0 2.0 Total ACL 155.3 4.2 2.2 (0.3) 6.8 161

a2023-q2presentationfina • • • • • • • • • ACL - Loans 141.5 4.4 (1.1) (0.3) 3.6 144.7 ACL - Unfunded Commitments 13.4 (0.1) 1.4 0.0 1.2 14.7 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.4 ACL - AFS Securities 0.0 0.0 2.0 0.0 2.0 2.0 Total ACL 155.3 4.2 2.2 (0.3) 6.8 161.7 $155.3 $161.7 PRE-TAX PRE-PROVISION EARNINGS Jun 30, 2023 Mar 31, 2023 Jun 30, 2022 Income before provision for income tax

July 19, 2023 EX-99.1

Banner Corporation Reports Net Income of $39.6 Million, or $1.15 Per Diluted Share, for Second Quarter 2023; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $39.6 Million, or $1.15 Per Diluted Share, for Second Quarter 2023; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - July 19, 2023 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today reporte

July 19, 2023 8-K

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): July 19, 2023 Banner Corporation

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): July 19, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission File

May 26, 2023 EX-99.1

Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board

Exhibit 99.1 Contact: Mark J. Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board Walla Walla, Wash – May 26, 2023 – Banner Corporation (NASDAQ GSM: BANR), (“Banner” or the “Company”), the parent company of Banner Bank, today announced tha

May 26, 2023 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): May 24, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission File (I.R.S. Employer of

May 5, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER COR

April 19, 2023 EX-99.1

Banner Corporation Reports Net Income of $55.6 Million, or $1.61 Per Diluted Share, for First Quarter 2023; Declares Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $55.6 Million, or $1.61 Per Diluted Share, for First Quarter 2023; Declares Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - April 19, 2023 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today reporte

April 19, 2023 EX-99.2

• • • • • • • • • • ACL - Loans 141.5 0.2 (0.2) (0.8) 0.8 141.5 ACL - Unfunded Commitments 14.7 (0.3) (1.0) 0.0 (1.3) 13.4 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.4 Total ACL 156.6 (0.0) (1.3) (0.8) (0.5) 155.3 $156.6 $155.3 PRE-TAX PRE-PROV

a2023-q1presentationfina • • • • • • • • • • ACL - Loans 141.5 0.2 (0.2) (0.8) 0.8 141.5 ACL - Unfunded Commitments 14.7 (0.3) (1.0) 0.0 (1.3) 13.4 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.4 Total ACL 156.6 (0.0) (1.3) (0.8) (0.5) 155.3 $156.6 $155.3 PRE-TAX PRE-PROVISION EARNINGS Mar 31, 2023 Dec 31, 2022 Mar 31, 2022 Income before provision for income taxes (GAAP) 68,492$ 66,424$ 53,847$

April 19, 2023 8-K

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): April 19, 2023 Banner Corporation

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): April 19, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fil

April 18, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ☒ Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive proxy statement ☐ Definitive additional materials ☐ Soliciting material pursuant to § 240.

March 31, 2023 EX-99.1

Banner Corporation Announces CFO Transition Plan

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces CFO Transition Plan Walla Walla, Wash – March 31, 2023 - Banner Corporation (NASDAQ GSM: BANR) (“Banner” or the “Company”), the parent company of Banner Bank, today announced that Peter J. Conner has informed the Company of his intention to retire from his positio

March 31, 2023 8-K

SECURITIES AND EXCHANGE COMMISSION

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): March 31, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) F

March 31, 2023 EX-10.1

Form of Separation and Release Agreement between Banner Corporation, Banner Bank and Peter J. Conner

Exhibit 10.1 SEPARATION AND RELEASE AGREEMENT This Separation and Release Agreement (“Agreement”) is made by and between Peter J. Conner (“Executive”), an individual, and Banner Corporation, a Washington Corporation (the “Company”), Banner Bank (the “Bank”), and the Bank’s subsidiaries (collectively, “Banner”), effective as of , 2023 (the “Agreement Date”). WHEREAS, the Bank and Executive are part

February 21, 2023 EX-4.2

Description of Capital Stock

EXHIBIT 4.2 DESCRIPTION OF CAPITAL STOCK The following information summarizes certain features and rights of our capital stock. The summary does not purport to be exhaustive and is qualified in its entirety by reference to our articles of incorporation, bylaws, and to applicable Washington law. General Banner’s authorized capital stock consists of: • 50,000,000 shares of common stock, $0.01 par va

February 21, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER CORPORATION (Exact na

February 21, 2023 EX-21

Subsidiaries of the Registrant.

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT December 31, 2022 Parent Banner Corporation Percentage of Jurisdiction of State of Subsidiaries Ownership Incorporation Banner Bank (1) 100 % Washington Banner Capital Trusts V, VI, and VII (1) 100 % Delaware Springer Development, LLC (2) 100 % Washington Community Financial Corporation (2) 100 % Oregon Northwest Financial Corporation (2) 100 % Washington Greater Sacramento Bancorp Statutory Trust II (1) 100 % Delaware Mission Oaks Statutory Trust I (1) 100 % Delaware (1) Wholly-owned by Banner Corporation.

February 10, 2023 SC 13G/A

BANR / Banner Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Banner Corp (Name of Issuer) Common Stock (Title of Class of Securities) 06652V208 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

February 9, 2023 SC 13G/A

BANR / Banner Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0382-bannercorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Banner Corp. Title of Class of Securities: Common Stock CUSIP Number: 06652V208 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule p

January 19, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 19, 2023 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission F

January 19, 2023 EX-99.1

Banner Corporation Reports Net Income of $54.4 Million, or $1.58 Per Diluted Share, for Fourth Quarter 2022; Earns $195.4 Million in Net Income, or $5.67 Per Diluted Share, for 2022; Declares Increased Quarterly Cash Dividend of $0.48 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $54.4 Million, or $1.58 Per Diluted Share, for Fourth Quarter 2022; Earns $195.4 Million in Net Income, or $5.67 Per Diluted Share, for 2022; Declares Increased Quarterly Cash Dividend of $0.48 Per Share Walla Walla, WA - January 19, 2023 - Banner Corp

January 19, 2023 EX-99.2

• • • • • • • • • • ACL - Loans 135.9 4.5 1.0 (0.5) 6.0 141.5 ACL - Unfunded Commitments 14.0 0.3 0.4 0.0 0.7 14.7 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.4 Total ACL 150.4 4.8 1.4 (0.5) 6.7 156.6 $150.4 $156.6 PRE-TAX PRE-PROVISION EARNINGS

• • • • • • • • • • ACL - Loans 135.9 4.5 1.0 (0.5) 6.0 141.5 ACL - Unfunded Commitments 14.0 0.3 0.4 0.0 0.7 14.7 ACL - HTM Securities 0.4 (0.0) (0.0) 0.0 (0.0) 0.4 Total ACL 150.4 4.8 1.4 (0.5) 6.7 156.6 $150.4 $156.6 PRE-TAX PRE-PROVISION EARNINGS Dec 31, 2022 Sep 30, 2022 Dec 31, 2021 Dec 31, 2022 Dec 31, 2021 Income before provision for income taxes (GAAP) 66,424$ 60,907$ 59,442$ 240,775$ 246

November 3, 2022 10-Q

‘ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

‘ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANN

October 19, 2022 EX-99.1

Banner Corporation Reports Net Income of $49.1 Million, or $1.43 Per Diluted Share, for Third Quarter 2022; Declares Quarterly Cash Dividend of $0.44 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $49.1 Million, or $1.43 Per Diluted Share, for Third Quarter 2022; Declares Quarterly Cash Dividend of $0.44 Per Share Walla Walla, WA - October 19, 2022 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?), the parent company of Banner Bank, today repor

October 19, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 19, 2022 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

October 19, 2022 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORP

July 21, 2022 EX-99.1

Banner Corporation Reports Net Income of $48.0 Million, or $1.39 Per Diluted Share, for Second Quarter 2022; Declares Quarterly Cash Dividend of $0.44 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $48.0 Million, or $1.39 Per Diluted Share, for Second Quarter 2022; Declares Quarterly Cash Dividend of $0.44 Per Share Walla Walla, WA - July 20, 2022 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?), the parent company of Banner Bank, today reporte

July 21, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 20, 2022 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

July 21, 2022 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

May 24, 2022 EX-3.1(B)

Restated Articles of Incorporation of Banner Corporation [incorporated by reference to Exhibit 3.1 (b) to the Registrant’s Current Report on Form 8-K filed on May 24, 2022 (File No. 000-26584)].

Exhibit 3.1(b) RESTATED ARTICLES OF INCORPORATION OF BANNER CORPORATION Pursuant to the provisions of Title 23B of the Revised Code of Washington (?RCW?) (the Washington Business Corporation Act), the following shall constitute the Articles of Incorporation of Banner Corporation, a Washington corporation: ARTICLE I. Name. The name of the corporation is Banner Corporation (the ?corporation?). ARTIC

May 24, 2022 EX-99.1

Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board

Exhibit 99.1 Contact: Mark J. Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board Walla Walla, WA ? May 19, 2022 ? Banner Corporation (NASDAQ GSM: BANR), (?Company?), the parent company of Banner Bank, today announced that shareholders app

May 24, 2022 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): May 18, 2022 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission File Nu

May 24, 2022 EX-3.1(A)

Articles of Amendment to Articles of Incorporation of Banner Corporation

Exhibit 3.1(a) ARTICLES OF AMENDMENT OF BANNER CORPORATION Banner Corporation, a corporation organized and existing under the laws of the State of Washington (the ?Corporation?), in accordance with the provisions of Section 23B.10.060 of the Washington Business Corporation Act thereof, does hereby certify and submit for filing these Articles of Amendment to its Articles of Incorporation: FIRST: Th

May 24, 2022 EX-3.2

Amended and Restated Bylaws of Banner Corporation [incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K filed on May 24, 2022 (File No. 000-26584)].

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF BANNER CORPORATION ARTICLE I Principal Office SECTION 1. Principal Office. The principal office and place of business of the corporation in the state of Washington shall be located in the City of Walla Walla, Walla Walla County. SECTION 2. Other Offices. The corporation may have such other offices as the board of directors may designate or the business of

May 9, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER COR

April 20, 2022 EX-99.1

Banner Corporation Reports Net Income of $44.0 Million, or $1.27 Per Diluted Share, for First Quarter 2022; Declares Quarterly Cash Dividend of $0.44 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $44.0 Million, or $1.27 Per Diluted Share, for First Quarter 2022; Declares Quarterly Cash Dividend of $0.44 Per Share Walla Walla, WA - April 20, 2022 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?), the parent company of Banner Bank, today reporte

April 20, 2022 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

April 20, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 20, 2022 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) F

April 7, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A 1 d206542ddef14a.htm DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ☒ Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitte

March 21, 2022 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ? Filed by a party other than the registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy statement ? Definitive additional materials ? Soliciting material pursuant to ? 240.

March 4, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): February 28, 2022 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporati

March 4, 2022 EX-99.1

Margot James Copeland and Paul Walsh Join Banner Corporation Board of Directors

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Margot James Copeland and Paul Walsh Join Banner Corporation Board of Directors Walla Walla, WA ? March 4, 2022 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?), the parent company of Banner Bank (?Bank?), today announced that Margot James Copeland and Paul J. Walsh have been appointed to t

February 24, 2022 EX-4.2

Description of Capital Stock

EXHIBIT 4.2 DESCRIPTION OF CAPITAL STOCK The following information summarizes certain features and rights of our capital stock. The summary does not purport to be exhaustive and is qualified in its entirety by reference to our articles of incorporation, bylaws, and to applicable Washington law. General Banner?s authorized capital stock consists of: ? 50,000,000 shares of common stock, $0.01 par va

February 24, 2022 EX-21

Subsidiaries of the Registrant.

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT December 31, 2021 Parent Banner Corporation Percentage of Jurisdiction of State of Subsidiaries Ownership Incorporation Banner Bank (1) 100 % Washington Banner Capital Trusts II, III, IV, V, VI, and VII (1) 100 % Delaware Springer Development, LLC (2) 100 % Washington Community Financial Corporation (2) 100 % Oregon Northwest Financial Corporation (2) 100 % Washington Siuslaw Statutory Trust I (1)(3) 100 % Connecticut Greater Sacramento Bancorp Statutory Trusts I and II (1) 100 % Delaware Mission Oaks Statutory Trust I (1) 100 % Delaware (1) Wholly-owned by Banner Corporation.

February 24, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER CORPORATION (Exact na

February 9, 2022 SC 13G/A

BANR / Banner Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Banner Corp. Title of Class of Securities: Common Stock CUSIP Number: 06652V208 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

February 8, 2022 SC 13G/A

BANR / Banner Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* Banner Corp (Name of Issuer) Common Stock (Title of Class of Securities) 06652V208 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

January 21, 2022 EX-99.1

Banner Corporation Reports Net Income of $49.9 Million, or $1.44 Per Diluted Share, for Fourth Quarter 2021; Earns Record $201.0 Million in Net Income, or $5.76 Per Diluted Share, for 2021; Declares Increased Quarterly Cash Dividend of $0.44 Per Shar

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $49.9 Million, or $1.44 Per Diluted Share, for Fourth Quarter 2021; Earns Record $201.0 Million in Net Income, or $5.76 Per Diluted Share, for 2021; Declares Increased Quarterly Cash Dividend of $0.44 Per Share Walla Walla, WA - January 20, 2022 - Bann

January 21, 2022 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

January 21, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 20, 2022 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

December 22, 2021 EX-99.1

Banner Corporation Announces Stock Repurchase Program

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces Stock Repurchase Program Walla Walla, Wash ? December 22, 2021 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?), the parent company of Banner Bank, today announced that its Board of Directors has authorized the repurchase of up to 1,712,510 shares of Banner?s co

December 22, 2021 8-K

Financial Statements and Exhibits, Other Events

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): December 20, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation

November 4, 2021 EX-10.J

Amended and Restated Executive Severance and Change in Control Plan and Summary Plan Description (Amended and Restated effective as of October 1, 2021) [incorporated by reference to exhibit 10{j} included in the Form 10-Q dated September 30, 2021 (File No. 000-26584)]

EXHIBIT 10 {j} BANNER BANK AMENDED AND RESTATED EXECUTIVE SEVERANCE AND CHANGE IN CONTROL PLAN AND SUMMARY PLAN DESCRIPTION (Amended and Restated effective as of October 1, 2021) 86 TABLE OF CONTENTS SECTION 1.

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER

October 28, 2021 EX-99.1

Banner Corporation Announces Retirement of Banner Bank Chief Risk Officer; Hiring of Replacement

Exhibit 99.1 Contact: Kelly McPhee Vice President, Communications (509) 991-0575 or [email protected] NEWS RELEASE Banner Corporation Announces Retirement of Banner Bank Chief Risk Officer; Hiring of Replacement (Walla Walla, Wash.) - October 28, 2021 - Banner Corporation (NASDAQ:GSM:BANR), the parent company of Banner Bank, today announced the retirement of Judy Steiner, Executive Vice

October 28, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): October 26, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

October 21, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 20, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

October 21, 2021 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

October 21, 2021 EX-99.1

Banner Corporation Reports Net Income of $49.9 Million, or $1.44 Per Diluted Share, for Third Quarter 2021; Announces Banner Forward; Declares Quarterly Cash Dividend of $0.41 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $49.9 Million, or $1.44 Per Diluted Share, for Third Quarter 2021; Announces Banner Forward; Declares Quarterly Cash Dividend of $0.41 Per Share Walla Walla, WA - October 20, 2021 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?), the parent company o

August 11, 2021 8-K

Financial Statements and Exhibits

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): August 11, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

August 11, 2021 EX-14.1

Banner Corporation Code of Ethics & Business Conduct

Exhibit 14.1

August 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORP

July 22, 2021 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

July 22, 2021 EX-99.1

Banner Corporation Reports Increased Loan Demand, Strong Deposit Growth and Net Income of $54.4 Million, or $1.56 Per Diluted Share, for Second Quarter 2021; Declares Quarterly Cash Dividend of $0.41 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Increased Loan Demand, Strong Deposit Growth and Net Income of $54.4 Million, or $1.56 Per Diluted Share, for Second Quarter 2021; Declares Quarterly Cash Dividend of $0.41 Per Share Walla Walla, WA - July 21, 2021 - Banner Corporation (NASDAQ GSM: BANR) (?Banner?),

July 22, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 21, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

May 5, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER COR

April 29, 2021 EX-99.1

Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board

Exhibit 99.1 Contact: Mark J. Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board Walla Walla, WA ? April 29, 2021 ? Banner Corporation (NASDAQ GSM: BANR), (?Company?), the parent company of Banner Bank, today announced that shareholders a

April 29, 2021 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): April 28, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission File (I.R.S. Employer o

April 21, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 21, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) F

April 21, 2021 EX-99.1

Banner Corporation Reports Net Income of $46.9 Million, or $1.33 Per Diluted Share, for First Quarter 2021; Declares Quarterly Cash Dividend of $0.41 Per Share

EX-99.1 2 banr8k42121exh991.htm Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $46.9 Million, or $1.33 Per Diluted Share, for First Quarter 2021; Declares Quarterly Cash Dividend of $0.41 Per Share Walla Walla, WA - April 21, 2021 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent compa

April 21, 2021 EX-99.2

99.2 Banner Corporation Investor Materials

Exhibit 99.2

March 22, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ? Filed by a party other than the registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy statement ? Definitive additional materials ? Soliciting material pursuant to ? 240.

February 26, 2021 EX-99.1

Ellen Boyer and John Pedersen Join Banner Corporation Board of Directors

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Ellen Boyer and John Pedersen Join Banner Corporation Board of Directors Walla Walla, WA – February 25, 2021 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank, today announced that Ellen R.M. Boyer and John Pedersen have been appointed to the Board of Direc

February 26, 2021 10-K/A

Annual Report - 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER C

February 26, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): February 22, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporati

February 23, 2021 EX-21

Subsidiaries of the Registrant.

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Parent Banner Corporation Percentage of Jurisdiction of State of Subsidiaries Ownership Incorporation Banner Bank (1) 100 % Washington Islanders Bank (1)(3) 100 % Washington Banner Capital Trusts II, III, IV, V, VI, and VII (1) 100 % Delaware Springer Development, LLC (2) 100 % Washington Community Financial Corporation (2) 100 % Oregon Northwest Financial

February 23, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER CORPORATION (Exact na

February 23, 2021 EX-4.2

Description of Capital Stock

EXHIBIT 4.2 DESCRIPTION OF CAPITAL STOCK The following information summarizes certain features and rights of our capital stock. The summary does not purport to be exhaustive and is qualified in its entirety by reference to our articles of incorporation, bylaws, and to applicable Washington law. General Banner?s authorized capital stock consists of: ? 50,000,000 shares of common stock, $0.01 par va

February 12, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Banner Corp (Name of Issuer) Common Stock (Title of Class of Securities) 06652V208 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Banner Corp. Title of Class of Securities: Common Stock CUSIP Number: 06652V208 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

February 5, 2021 8-K

Financial Statements and Exhibits, Other Events

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): February 5, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

January 21, 2021 EX-99.1

Banner Corporation Reports Net Income of $39.0 Million, or $1.10 Per Diluted Share, for Fourth Quarter 2020; Earns $115.9 Million, or $3.26 Per Diluted Share, in 2020; Declares Quarterly Cash Dividend of $0.41 Per Share

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $39.0 Million, or $1.10 Per Diluted Share, for Fourth Quarter 2020; Earns $115.9 Million, or $3.26 Per Diluted Share, in 2020; Declares Quarterly Cash Dividend of $0.41 Per Share Walla Walla, WA - January 21, 2021 - Banner Corporation (NASDAQ GSM: BANR

January 21, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 21, 2021 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

January 21, 2021 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

December 21, 2020 EX-99.1

Banner Corporation Announces Stock Repurchase Program and Schedules 4Q20 Conference Call and Webcast

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Announces Stock Repurchase Program and Schedules 4Q20 Conference Call and Webcast Walla Walla, WA – December 21, 2020 - Banner Corporation (NASDAQ GSM: BANR) (“Banner”), the parent company of Banner Bank and Islanders Bank, today announced that its Board of Directors has au

December 21, 2020 8-K

Financial Statements and Exhibits, Other Events -

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): December 18, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporati

November 5, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER

October 29, 2020 EX-3.2

Amended and Restated Bylaws of Banner Corporation [incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K filed on May 24, 2022 (File No. 000-26584)].

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF BANNER CORPORATION ARTICLE I Principal Office SECTION 1. Principal Office. The principal office and place of business of the corporation in the state of Washington shall be located in the City of Walla Walla, Walla Walla County. SECTION 2. Other Offices. The corporation may have such other offices as the board of directors may designate or the business of

October 29, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits -

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): October 27, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

October 22, 2020 EX-99.1

Banner Corporation Reports Net Income of $36.5 Million, or $1.03 Per Diluted Share, for Third Quarter 2020 Declares Quarterly Cash Dividend of $0.41 Per Share Commits $1.5 million to Support Minority-Owned Small Businesses

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $36.5 Million, or $1.03 Per Diluted Share, for Third Quarter 2020 Declares Quarterly Cash Dividend of $0.41 Per Share Commits $1.5 million to Support Minority-Owned Small Businesses Walla Walla, WA - October 21, 2020 - Banner Corporation (NASDAQ GSM: B

October 22, 2020 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

October 22, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition -

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): October 21, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

September 22, 2020 EX-10.1

Form of Consultant Agreement between Banner Bank and Richard B. Barton

Exhibit 10.1 FORM OF CONSULTANT AGREEMENT This Consultant Agreement (the “Agreement”), is made and entered into effective September 22, 2020, by and between Banner Bank, a Washington state chartered commercial bank (the “Bank”), and Richard B. Barton (“Consultant”). WHEREAS, Consultant has been employed as a senior officer of the Bank (together with its affiliates, “Banner Bank”) but will retire f

September 22, 2020 EX-99.1

Banner Bank Announces Retirement of Chief Credit Officer; Promotion of Replacement

Exhibit 99.1 MEDIA RELEASE FOR IMMEDIATE RELEASE September 22, 2020 Contact: Kelly McPhee, Vice President, Communications, (509) 991-0575 or [email protected] Banner Bank Announces Retirement of Chief Credit Officer; Promotion of Replacement (Walla Walla, Wash.) The Banner Bank executive leadership team today announced the retirement of Richard B. Barton, Executive Vice President and Chi

September 22, 2020 8-K

SECURITIES AND EXCHANGE COMMISSION

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 22, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporat

September 1, 2020 EX-14.1

Banner Corporation Code of Ethics & Business Conduct

Exhibit 14.1

September 1, 2020 8-K

Amendment to Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics, Financial Statements and Exhibits -

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): August 28, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation

August 5, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORP

July 23, 2020 EX-99.1

Banner Corporation Reports Net Income of $23.5 Million, or $0.67 Per Diluted Share, in Second Quarter 2020 Declares Quarterly Cash Dividend of $0.41 Per Share Provides Update to Pandemic Relief and Community Support Actions

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $23.5 Million, or $0.67 Per Diluted Share, in Second Quarter 2020 Declares Quarterly Cash Dividend of $0.41 Per Share Provides Update to Pandemic Relief and Community Support Actions Walla Walla, WA - July 22, 2020 - Banner Corporation (NASDAQ GSM: BAN

July 23, 2020 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

July 23, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 22, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

June 30, 2020 EX-99.2

BANNER CORPORATION ANNOUNCES COMPLETION OF SUBORDINATED NOTES OFFERING

Exhibit 99.2 Contact: Mark J. Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release BANNER CORPORATION ANNOUNCES COMPLETION OF SUBORDINATED NOTES OFFERING WALLA WALLA, WA. – June 30, 2020-Banner Corporation (NASDAQ GSM: BANR) ("Banner"), the parent company of Banner Bank and Islanders Bank (the “Banks”), today announced that it had completed its previously announced underwri

June 30, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

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): June 25, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

June 30, 2020 EX-4.1

Indenture, dated June 30, 2020, between Banner Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee.

Exhibit 4.1 INDENTURE Dated as of June 30, 2020 Between BANNER CORPORATION, as Issuer and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee Subordinated Debt Securities CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section Indenture Section Section 310(a)(1) Section 609 (a)(2) Section 609 (a)(3) N

June 30, 2020 EX-4.2

First Supplemental Indenture, dated June 30, 2020, between Banner Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee.

Exhiibt 4.2 FIRST SUPPLEMENTAL INDENTURE between BANNER CORPORATION AND THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. DATED AS OF JUNE 30, 2020 First Supplement to Indenture dated as of June 30, 2020 (Subordinated Debt Securities) FIRST SUPPLEMENTAL INDENTURE, dated as of June 30, 2020 (this “Supplemental Indenture”), between BANNER CORPORATION, a Washington corporation (the “Company”), and THE

June 30, 2020 EX-1.1

Underwriting Agreement, dated June 25, 2020, between Banner Corporation and BofA Securities, Inc. and Piper Sandler & Co.

Exhibit 1.1 $100,000,000 Banner Corporation 5.000% Fixed-to-Floating Rate Subordinated Notes due 2030 Underwriting Agreement June 25, 2020 BofA Securities, Inc. Piper Sandler & Co. As Representatives of the several Underwriters listed in Schedule 1 hereto c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 c/o Piper Sandler & Co. 1251 Avenue of the Americas, 6th Floor New York, New

June 30, 2020 EX-99.1

BANNER CORPORATION ANNOUNCES PRICING OF SUBORDINATED NOTES OFFERING

Exhibit 99.1 Contact: Mark J. Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release BANNER CORPORATION ANNOUNCES PRICING OF SUBORDINATED NOTES OFFERING WALLA WALLA, WA. – June 25, 2020 - Banner Corporation (NASDAQ GSM: BANR) ("Banner"), the parent company of Banner Bank and Islanders Bank (the “Banks”), today announced the pricing of its public offering of $100.0 million agg

June 26, 2020 424B2

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Per Unit Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 5.00% Fixed-to-Floating Rate Subordina

424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-239159 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Per Unit Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 5.00% Fixed-to-Floating Rate Subordinated Notes due 2030 $100,000,000 100% $100,000,000 $12,980.00 (1)

June 25, 2020 424B3

SUBJECT TO COMPLETION, DATED JUNE 25, 2020.

424B3 Table of Contents The information contained in this preliminary prospectus supplement is not complete and may be changed.

June 25, 2020 FWP

Issuer Free Writing Prospectus

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration No. 333-239159 June 25, 2020

June 25, 2020 FWP

Pricing Term Sheet

Filed Pursuant to Rule 433 Registration Statement No. 333-239159 Pricing Term Sheet Pricing Term Sheet Issuer: Banner Corporation (the “Company”) Securities Offered: 5.000% Fixed-to-Floating Rate Subordinated Notes due 2030 (the “Notes”) Aggregate Principal Amount: $100,000,000 Ratings*: BBB by Kroll Bond Rating Agency, Inc. Trade Date: June 25, 2020 Settlement Date: June 30, 2020 (T+3) Final Matu

June 22, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): June 22, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

June 22, 2020 8-K

Financial Statements and Exhibits, Other Events

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): June 22, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

June 22, 2020 EX-99.1

Banner Corporation Investor Materials

Exhibit 99.1

June 12, 2020 EX-25.2

Form T‑1 Statement of Eligibility of the Bank of New York Mellon Trust Company, N.A., as trustee for the form of Subordinated Indenture

Exhibit 25.2 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) || THE BANK OF NE

June 12, 2020 S-3ASR

-

As filed with the Securities and Exchange Commission on June 12, 2020 Registration No.

June 12, 2020 EX-25.1

Form T‑1 Statement of Eligibility of The Bank of New York Mellon Trust Company, N.A., as trustee for the form of the Senior Indenture

Exhibit 25.1 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) || THE BANK OF NE

June 12, 2020 EX-4.3

Form of Senior Indenture

Exhibit 4.3 INDENTURE Dated as of [ ], [ ] Between BANNER CORPORATION as Issuer and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee Senior Debt Securities CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section Indenture Section Section 310(a)(1) Section 609 (a)(2) Section 609 (a)(3) Not Applicabl

June 12, 2020 EX-4.4

Form of Subordinated Indenture

Exhibit 4.4 INDENTURE Dated as of [ ], [ ] Between BANNER CORPORATION, as Issuer and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee Subordinated Debt Securities CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section Indenture Section Section 310(a)(1) Section 609 (a)(2) Section 609 (a)(3) Not Ap

May 7, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER COR

May 5, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): May 5, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) Fi

May 5, 2020 EX-99.1

Banner Corporation Investor Materials

Exhibit 99.1

May 1, 2020 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): April 29, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission File (I.R.S. Employer

May 1, 2020 EX-99.1

Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board

Exhibit 99.1 Contact: Mark J. Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board Walla Walla, WA – April 30, 2020 – Banner Corporation (NASDAQ GSM: BANR), the parent company of Banner Bank and Islanders Bank, today announced that sharehol

April 28, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 27, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

April 28, 2020 EX-99.1

Banner Corporation Reports First Quarter Earnings of $16.9 million Initiates Pandemic Relief and Community Support Actions

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports First Quarter Earnings of $16.9 million Initiates Pandemic Relief and Community Support Actions Walla Walla, WA - April 27, 2020 - Banner Corporation (NASDAQ GSM: BANR) ("Banner"), the parent company of Banner Bank and Islanders Bank, today reported net income of $1

April 28, 2020 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

April 9, 2020 EX-99.2

BANNER CORPORATION 10 S. FIRST AVENUE WALLA WALLA, WASHINGTON 99362

Exhibit 99.2 BANNER CORPORATION 10 S. FIRST AVENUE WALLA WALLA, WASHINGTON 99362 ADDITIONAL INFORMATION REGARDING THE ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON WEDNESDAY, APRIL 29, 2020 The following Notice of Change of Location relates to the proxy statement (the “Proxy Statement”) of Banner Corporation (“Banner”), dated March 23, 2020, furnished to shareholders of Banner in connection with th

April 9, 2020 DEFA14A

BANR / Banner Corp. DEFA14A - -

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant ■ Filed by a party other than the registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive proxy statement ■ Definitive additional materials ☐ Soliciting material pursuant to § 240.

April 9, 2020 EX-99.1

Annual Meeting of Shareholders to be Held on April 29, 2020

Exhibit 99.1 Contact: Mark Grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release Banner Corporation Announces Changes to Annual Meeting of Shareholders to be Held on April 29, 2020 Walla Walla, WA – April 9, 2020 - Banner Corporation (NASDAQ GSM: BANR) (the "Company"), the parent company of Banner Bank and Islanders Bank, announced today a change of its 2020 annual meeting o

April 9, 2020 8-K

Financial Statements and Exhibits, Other Events

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): April 9, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

March 20, 2020 DEF 14A

BANR / Banner Corp. DEF 14A - -

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [X] Definitive Proxy Statement [ ] Definitive Additional Materials [ ] Soliciting Material Pursuant to § 240.

February 21, 2020 EX-4.2

Description of Capital Stock

EXHIBIT 4.2 DESCRIPTION OF CAPITAL STOCK The following information summarizes certain features and rights of our capital stock. The summary does not purport to be exhaustive and is qualified in its entirety by reference to our articles of incorporation, bylaws, and to applicable Washington law. General Banner’s authorized capital stock consists of: • 50,000,000 shares of common stock, $0.01 par va

February 21, 2020 EX-21

Subsidiaries of the Registrant.

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Parent Banner Corporation Percentage of Jurisdiction of State of Subsidiaries Ownership Incorporation Banner Bank (1) 100 % Washington Islanders Bank (1) 100 % Washington Banner Capital Trusts II, III, IV, V, VI, and VII (1) 100 % Washington Springer Development LLC (2) 100 % Washington Community Financial Corporation (2) 100 % Oregon Northwest Financial Corporation (2) 100 % Washington Banner Investment Advisors, LLC (2) 100 % Washington Siuslaw Statutory Trust I (1) 100 % Connecticut Greater Sacramento Bancorp Statutory Trust I (1) 100 % Delaware Greater Sacramento Bancorp Statutory Trust II (1) 100 % Delaware Mission Oak Statutory Trust I (1) 100 % Delaware (1) Wholly-owned by Banner Corporation.

February 21, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 0-26584 BANNER CORPORATION (Exact na

February 12, 2020 SC 13G/A

BANR / Banner Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Banner Corp Title of Class of Securities: Common Stock CUSIP Number: 06652V208 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

February 12, 2020 SC 13G/A

BANR / Banner Corp. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* BANNER CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 06652V208 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

January 24, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 23, 2020 Banner Corporation (Exact name of registrant as specified in its charter) Washington 000-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporatio

January 24, 2020 EX-99.1

Banner Corporation Reports Record 2019 Net Income Highlights in Fourth Quarter of 2019 included Strong Organic Loan and Core Deposit Growth and Completion of AltaPacific Bancorp Acquisition

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Record 2019 Net Income Highlights in Fourth Quarter of 2019 included Strong Organic Loan and Core Deposit Growth and Completion of AltaPacific Bancorp Acquisition Walla Walla, WA - January 23, 2020 - Banner Corporation (NASDAQ GSM: BANR) ("Banner"), the parent compa

January 24, 2020 EX-99.2

Banner Corporation Investor Materials

Exhibit 99.2

November 1, 2019 8-K

Financial Statements and Exhibits, Other Events

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): November 1, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fil

November 1, 2019 EX-99.1

Banner Corporation Completes Acquisition of AltaPacific Bancorp, Inc.

EX-99.1 Exhibit 99.1 Banner Corporation Completes Acquisition of AltaPacific Bancorp, Inc. WALLA WALLA, WASHINGTON – November 1, 2019 – Banner Corporation (“Banner”) (NASDAQ GSM: BANR), the holding company for Banner Bank and Islanders Bank, announced that effective November 1, 2019, it had completed the acquisition of AltaPacific Bancorp (“AltaPacific”) and its wholly-owned subsidiary, AltaPacifi

November 1, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2019 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER C

October 24, 2019 EX-99.1

Banner Corporation Reports Net Income of $39.6 Million, or $1.15 Per Diluted Share, in Third Quarter 2019; Highlighted by Strong Core Deposit Growth

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $39.6 Million, or $1.15 Per Diluted Share, in Third Quarter 2019; Highlighted by Strong Core Deposit Growth Walla Walla, WA - October 23, 2019 - Banner Corporation (NASDAQ GSM: BANR) ("Banner"), the parent company of Banner Bank and Islanders Bank, tod

October 24, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 23, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

October 24, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): October 23, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation)

October 24, 2019 EX-99.1

99.1 Banner Corporation Investor Materials

Exhibit 99.1

September 30, 2019 424B3

MERGER PROPOSED—YOUR VOTE IS VERY IMPORTANT

424B3 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration Statement No.

September 27, 2019 EX-99.2

Consent of Vining Sparks IBG, L.P.*

EX-99.2 Exhibit 99.2 CONSENT OF VINING SPARKS IBG, L.P. We hereby consent to the inclusion of our opinion letter to the board of directors of AltaPacific Bancorp (“AltaPacific”) as an Annex to the proxy statement/prospectus relating to the proposed merger of AltaPacific with and into Banner Corporation (“Banner”), contained in the Amendment No. 1 to Banner’s Registration Statement on Form S-4, as

September 27, 2019 S-4/A

BANR / Banner Corp. S-4/A - - S-4/A

S-4/A Table of Contents As filed with the Securities and Exchange Commission on September 27, 2019 Registration No.

September 27, 2019 EX-99.1

Form of AltaPacific Bancorp Proxy Card.*

EX-99.1 Exhibit 99.1 REVOCABLE PROXY – ALTAPACIFIC BANCORP SPECIAL MEETING OF SHAREHOLDERS – October 28, 2019 The undersigned shareholder(s) of AltaPacific Bancorp (the “Company”) hereby nominates, constitutes and appoints Timothy J. Jorstad and Charles O. Hall, and each of them, the attorney, agent and proxy of the undersigned, with full power of substitution, to vote all stock of the Company whi

September 27, 2019 CORRESP

BANR / Banner Corp. CORRESP - -

CORRESP BANNER CORPORATION 10 South First Avenue Walla Walla, WA 99362 (509) 527-3636 September 27, 2019 VIA EDGAR and e-mail LinD@SEC.

September 10, 2019 SC 13G/A

BANR / Banner Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Banner Corp Title of Class of Securities: Common Stock CUSIP Number: 06652V208 Date of Event Which Requires Filing of this Statement: August 30, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-

August 28, 2019 EX-99.1

Form of AltaPacific Bancorp Proxy Card.

EX-99.1 Exhibit 99.1 REVOCABLE PROXY – ALTAPACIFIC BANCORP SPECIAL MEETING OF SHAREHOLDERS – [*], 2019 The undersigned shareholder(s) of AltaPacific Bancorp (the “Company”) hereby nominates, constitutes and appoints Timothy J. Jorstad and Charles O. Hall, and each of them, the attorney, agent and proxy of the undersigned, with full power of substitution, to vote all stock of the Company which the

August 28, 2019 S-4

BANR / Banner Corp. S-4 - - S-4

S-4 Table of Contents As filed with the Securities and Exchange Commission on August 28, 2019 Registration No.

August 28, 2019 EX-99.2

Consent of Vining Sparks IBG, L.P.

EX-99.2 Exhibit 99.2 CONSENT OF VINING SPARKS IBG, L.P. We hereby consent to the inclusion of our letter to the Board of Directors of AltaPacific Bancorp (the “Company”) as an annex to the proxy statement/prospectus relating to the proposed merger of the Company with and into Banner Corporation (“Banner”), contained in Banner’s Registration Statement on Form S-4 as filed with the Securities and Ex

August 2, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2019 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER CORPOR

July 24, 2019 EX-99.1

Banner Corporation Reports Net Income of $39.7 Million, or $1.14 Per Diluted Share, in Second Quarter 2019; Results Highlighted by 10% Year-Over-Year Revenue Growth and Improved Operating Efficiencies

Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $39.7 Million, or $1.14 Per Diluted Share, in Second Quarter 2019; Results Highlighted by 10% Year-Over-Year Revenue Growth and Improved Operating Efficiencies Walla Walla, WA - July 24, 2019 - Banner Corporation (NASDAQ GSM: BANR) ("Banner"), the pare

July 24, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 24, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) Fi

July 24, 2019 EX-99.2

3 Additional Important Information In connection with the proposed acquisition of AltaPacific, Banner will file a registration statement on Form S-4 with the SEC to register the shares of Banner’s common stock to be issued in connection with the merg

EX-99.2 Exhibit 99.2 BANNER ADDS SCALE IN CALIFORNIA WITH THE ACQUISITION OF ALTAPACIFIC BANCORP JULY 24, 2019Exhibit 99.2 BANNER ADDS SCALE IN CALIFORNIA WITH THE ACQUISITION OF ALTAPACIFIC BANCORP JULY 24, 2019 2 Safe Harbor Forward-Looking Statements When used in this communication and in other documents filed with or furnished to the Securities and Exchange Commission (the “SEC”), in press rel

July 24, 2019 EX-99.1

Banner Corporation to Acquire California-Focused AltaPacific Bancorp

EX-99.1 Exhibit 99.1 CONTACT: KELLY MCPHEE, VICE PRESIDENT COMMUNICATIONS AND PUBLIC RELATIONS (509) 991-0575 NEWS RELEASE Banner Corporation to Acquire California-Focused AltaPacific Bancorp Walla Walla, Washington and Santa Rosa, California – July 24, 2019 - Banner Corporation (NASDAQ: BANR), the holding company for Banner Bank and Islanders Bank, together with AltaPacific Bancorp (OTCBB: ABNK),

July 24, 2019 EX-99.3

• •• •

EX-99.3 Exhibit 99.3Exhibit 99.3 • •• • ℠℠ ∆∆ • • • •∆∆ • • • • ∆∆∆∆∆∆∆∆ ∆∆ ∆∆∆∆

July 24, 2019 8-K

Financial Statements and Exhibits, Other Events

8-K 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): July 24, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fi

July 24, 2019 EX-99.3

• •• •

EX-99.3 Exhibit 99.3Exhibit 99.3 • •• • ℠℠ ∆∆ • • • •∆∆ • • • • ∆∆∆∆∆∆∆∆ ∆∆ ∆∆∆∆

July 24, 2019 EX-99.2

3 Additional Important Information In connection with the proposed acquisition of AltaPacific, Banner will file a registration statement on Form S-4 with the SEC to register the shares of Banner’s common stock to be issued in connection with the merg

EX-99.2 Exhibit 99.2 BANNER ADDS SCALE IN CALIFORNIA WITH THE ACQUISITION OF ALTAPACIFIC BANCORP JULY 24, 2019Exhibit 99.2 BANNER ADDS SCALE IN CALIFORNIA WITH THE ACQUISITION OF ALTAPACIFIC BANCORP JULY 24, 2019 2 Safe Harbor Forward-Looking Statements When used in this communication and in other documents filed with or furnished to the Securities and Exchange Commission (the “SEC”), in press rel

July 24, 2019 EX-99.1

Banner Corporation to Acquire California-Focused AltaPacific Bancorp

EX-99.1 Exhibit 99.1 CONTACT: KELLY MCPHEE, VICE PRESIDENT COMMUNICATIONS AND PUBLIC RELATIONS (509) 991-0575 NEWS RELEASE Banner Corporation to Acquire California-Focused AltaPacific Bancorp Walla Walla, Washington and Santa Rosa, California – July 24, 2019 - Banner Corporation (NASDAQ: BANR), the holding company for Banner Bank and Islanders Bank, together with AltaPacific Bancorp (OTCBB: ABNK),

July 24, 2019 425

BANR / Banner Corp. 425 - Merger Prospectus - 8-K

8-K 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): July 24, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction of incorporation) (Commission Fi

May 3, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2019 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to Commission File Number 000-26584 BANNER

April 26, 2019 EX-99.1

Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board

Exhibit 99.1 Contact: Mark J. grescovich, President & CEO Peter J. Conner, CFO (509) 527-3636 News Release Banner Corporation Announces Results of Annual Meeting, Shareholders Approve All Proposals and Confirm All Nominated Directors to Board Walla Walla, WA – April 26, 2019 – Banner Corporation (NASDAQ GSM: BANR), the parent company of Banner Bank and Islanders Bank, today announced that sharehol

April 26, 2019 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): April 25, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission File (I.R.S. Employer o

April 24, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 24, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) F

April 24, 2019 EX-99.1

Banner Corporation Reports Net Income of $33.3 Million, or $0.95 Per Diluted Share, in First Quarter 2019; Revenue Grows by 11% from First Quarter of 2018; Completion of Skagit Bank Integration Complemented by Good Core Deposit Growth

Exhibit Exhibit 99.1 CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO PETER J. CONNER, CFO (509) 527-3636 NEWS RELEASE Banner Corporation Reports Net Income of $33.3 Million, or $0.95 Per Diluted Share, in First Quarter 2019; Revenue Grows by 11% from First Quarter of 2018; Completion of Skagit Bank Integration Complemented by Good Core Deposit Growth Walla Walla, WA - April 24, 2019 - Banner Corporat

April 24, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): April 24, 2019 Banner Corporation (Exact name of registrant as specified in its charter) Washington 0-26584 91-1691604 (State or other jurisdiction (Commission File (I.R.S. Employer o

April 24, 2019 EX-99.1

Banner Corporation Investor Materials

Exhibit 99.1

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