Banner Corporation Reports Net Income of $48.9 Million, or $1.43 Per Diluted Share, for Second Quarter 2026; Declares Quarterly Cash Dividend of $0.52 Per Share

Banner Corporation (NASDAQ:BANR) ("Banner"), the parent company of Banner Bank, today reported net income of $48.9 million, or $1.43 per diluted share, for the second quarter of 2026, compared to $54.7 million, or $1.60 per diluted share, for the preceding quarter, and $45.5 million, or $1.31 per diluted share, for the second quarter of 2025. Net interest income was $153.7 million for the second quarter of 2026, compared to $150.2 million in the preceding quarter and $144.4 million for the second quarter a year ago. The increase in net interest income compared to the prior quarter primarily reflects one additional calendar day in the current quarter, net interest margin expansion and growth in average interest-earning assets, partially offset by higher interest expense associated with increased FHLB borrowings. The increase in net interest income compared to the second quarter a year ago primarily reflects lower funding costs and an increase in the average balance of interest-earning assets. Second quarter 2026 results included a $3.8 million provision for credit losses, compared to a $796,000 recapture of provision for credit losses in the preceding quarter and a $4.8 million provision for credit losses in the second quarter of 2025.

Net income was $103.6 million, or $3.03 per diluted share, for the six months ended June 30, 2026, compared to net income of $90.6 million, or $2.61 per diluted share, for the six months ended June 30, 2025. Results for the six months ended June 30, 2026 include a $3.0 million provision for credit losses, a $1.2 million net loss on the sale of securities and a $1.5 million net increase in the fair value adjustments on financial instruments carried at fair value, compared to a $7.9 million provision for credit losses, a $3,000 net loss on the sale of securities and an $403,000 net increase in the fair value adjustments on financial instruments carried at fair value during the same period in 2025.

Banner announced that its Board of Directors declared a regular quarterly cash dividend of $0.52 per share payable August 14, 2026, to common shareholders of record on August 4, 2026.

"Banner’s results for the second quarter reflect the continued strength of our super community bank model, which prioritizes deepening client relationships, maintaining a strong funding base, and delivering exceptional service while upholding a moderate risk profile," said Mark Grescovich, President and CEO. "Our earnings for the second quarter of 2026 benefited from robust loan growth. This benefit was offset by increased non-interest expense, which partially reflects investments in new software that we expect will enhance efficiency and support long-term growth. Banner continues to build on a foundation of solid credit quality, backed by a well-funded credit loss reserve and a robust capital position that offers both resilience and flexibility for future growth. At the same time, the strategic investments we have made across the organization are delivering tangible results, further positioning Banner for long-term success. We also continue to benefit from a strong core deposit base, with core deposits representing 89% of total deposits at quarter-end. For more than 135 years, Banner has upheld its core values by consistently doing the right thing for our clients, communities, colleagues, company and shareholders. Our long-standing commitment has enabled us to earn trust, navigate change with confidence and continue building a strong foundation for the future."

"In addition, we recently announced our agreement to acquire Pacific Financial Corporation, the holding company for Bank of the Pacific," Grescovich continued. "Bank of the Pacific is a highly-respected, financially strong community bank with exceptional core deposits. This transaction expands our presence and density in attractive Western Washington and Western Oregon markets while offering Bank of the Pacific customers broader product offerings and technology tools, increased commercial lending limits and an expanded branch delivery system. We look forward to welcoming their employees, clients and shareholders to Banner."

At June 30, 2026, Banner, on a consolidated basis, had $16.59 billion in assets, $11.83 billion in net loans and $13.79 billion in deposits. Banner operates 135 full-service branch offices, including branches located in eight of the top 20 largest western United States Metropolitan Statistical Areas by population.

Second Quarter 2026 Highlights

• Net interest margin, on a tax equivalent basis, was 4.13% for the current quarter, compared to 4.11% in the preceding quarter and 3.92% in the second quarter a year ago.
• Revenue was $172.0 million for the second quarter of 2026, compared to $169.3 million in the preceding quarter and increased 6% from $162.2 million in the second quarter a year ago.
• Net interest income was $153.7 million in the second quarter of 2026, compared to $150.2 million in the preceding quarter and $144.4 million in the second quarter a year ago.
• Mortgage banking operations revenue was $2.8 million for the second quarter of 2026, compared to $3.2 million in both the preceding quarter and the second quarter a year ago.
• Return on average assets was 1.20% for the second quarter of 2026, compared to 1.37% in the preceding quarter and 1.13% in the second quarter a year ago.
• Net loans receivable increased 2% to $11.83 billion at June 30, 2026, compared to $11.55 billion at March 31, 2026, and increased 3% from $11.53 billion at June 30, 2025.
• Loan originations were $1.26 billion for the second quarter of 2026, compared to $863.2 million in the preceding quarter and $966.6 million in the second quarter a year ago.
• Total deposits were $13.79 billion at June 30, 2026, compared to $13.84 billion at March 31, 2026 and $13.53 billion at June 30, 2025.
• Core deposits represented 89% of total deposits at June 30, 2026.
• Non-performing assets were $60.5 million, or 0.36% of total assets, at June 30, 2026, compared to $51.7 million, or 0.32% of total assets, at March 31, 2026, and $49.8 million, or 0.30% of total assets, at June 30, 2025.
• The allowance for credit losses - loans was $161.8 million, or 1.35% of total loans receivable, as of June 30, 2026, compared to $160.4 million, or 1.37% of total loans receivable, as of March 31, 2026, and $160.5 million, or 1.37% of total loans receivable, as of June 30, 2025.
• Dividends paid to shareholders were $0.52 per share in the quarter ended June 30, 2026.
• Common shareholders’ equity per share increased 1% to $58.83 at June 30, 2026, compared to $58.06 at the preceding quarter end, and increased 9% from $53.95 at June 30, 2025.
• Tangible common shareholders’ equity per share* increased 2% to $47.82 at June 30, 2026, compared to $47.00 at March 31, 2026, and increased 11% from $43.09 at June 30, 2025.

*Non-GAAP (Generally Accepted Accounting Principles) financial measure; See, "Additional Financial Information - Non-GAAP Financial Measures" on the final two pages of this press release for a reconciliation of non-GAAP financial measures.

Significant Recent Initiatives and Events

On April 30, 2026, Banner entered into a definitive merger agreement to acquire Pacific Financial Corporation ("Pacific Financial"), the holding company for Bank of the Pacific, in an all-stock transaction. Under the terms of the agreement, at the effective time of the merger, shareholders of Pacific Financial will receive 0.2633 shares of Banner common stock for each Pacific Financial common share they own. The transaction is expected to close in the third quarter of 2026 and is subject to closing conditions, including Pacific Financial shareholder and regulatory approvals.

Income Statement Review

Net interest income was $153.7 million in the second quarter of 2026, compared to $150.2 million in the preceding quarter and $144.4 million in the second quarter a year ago. Net interest margin, on a tax equivalent basis, increased two basis points to 4.13% for the second quarter of 2026, compared to 4.11% in the preceding quarter, and increased 21 basis points from 3.92% in the second quarter a year ago. The net interest margin for the current quarter benefited from a higher average yield on interest-earning assets and lower borrowing costs.

Interest income was $202.7 million in the second quarter of 2026, compared to $197.8 million in the preceding quarter and $200.3 million in the second quarter of 2025. Average yields on interest-earning assets increased by two basis points to 5.41% for the second quarter of 2026, compared to 5.39% for the preceding quarter, primarily reflecting loan growth and a slight increase in loan yields. Compared to the second quarter a year ago, average yields on interest-earning assets increased by one basis point from 5.40%. Average loan yields increased by two basis points to 6.09% in the second quarter of 2026, compared to 6.07% in the preceding quarter, and decreased from 6.12% in the second quarter a year ago.

Interest expense was $48.9 million in the second quarter of 2026, compared to $47.6 million in the preceding quarter and $55.9 million in the second quarter a year ago. Total deposit costs decreased by two basis points to 1.33% in the second quarter of 2026, compared to 1.35% in the preceding quarter, and decreased by 14 basis points compared to 1.47% in the second quarter a year ago. The decrease in deposit costs in the current quarter compared to both the prior quarter and the same quarter a year ago was primarily due to lower pricing on certificates of deposit and money market accounts as well as an increase in the average balance of non-interest-bearing deposits. The decrease in deposit costs in the current quarter compared to the same quarter a year ago also reflected a decrease in the average rate paid on interest-bearing checking accounts and savings accounts. The average rate paid on borrowings decreased two basis points to 3.88% in the second quarter of 2026 from 3.90% in the preceding quarter and decreased by 59 basis points from 4.47% in the second quarter a year ago. The year-over-year decrease was primarily due to declines in both average interest rates paid and the average balance of higher-costing FHLB advances. The total cost of funding liabilities increased one basis point to 1.39% in the second quarter of 2026, compared to 1.38% in the preceding quarter, and decreased 21 basis points from 1.60% in the second quarter a year ago, primarily reflecting lower deposit and borrowing rates paid.

A $3.8 million provision for credit losses was recorded in the current quarter (comprised of a $1.6 million provision for credit losses - loans and a $2.2 million provision for credit losses - unfunded loan commitments). This compares to a $796,000 recapture of provision for credit losses in the prior quarter (comprised of a $1.3 million provision for credit losses - loans and a $2.1 million recapture of provision for credit losses - unfunded loan commitments) and a $4.8 million provision for credit losses in the second quarter a year ago (comprised of a $4.2 million provision for credit losses - loans and a $588,000 provision for credit losses - unfunded loan commitments). The provision for credit losses recorded in the second quarter of 2026 primarily reflected loan growth, partially offset by improvements in credit quality and changes in portfolio mix.

Total non-interest income was $18.2 million in the second quarter of 2026, compared to $19.2 million in the preceding quarter and $17.8 million in the second quarter a year ago. The decrease from the previous quarter was driven primarily by a $1.8 million unfavorable shift in fair value adjustments on financial instruments. In addition, the current quarter included a slight gain on the sale of securities, compared to net losses of $1.2 million in the preceding quarter, partially offsetting the decrease in non-interest income. Compared to the prior year quarter, the increase in non-interest income was primarily attributable to an increase in deposit fees and other service charges, partially offset by lower mortgage banking revenue. Total non-interest income was $37.4 million for the six months ended June 30, 2026, compared to $36.9 million for the same period a year earlier.

Total non-interest expense was $108.0 million in the second quarter of 2026, compared to $102.6 million in the preceding quarter and $101.3 million in the second quarter of 2025. The increase from the previous quarter reflected a $1.7 million increase in salary and employee benefits, primarily reflecting increased loan commissions and normal salary and wage increases, a $2.0 million increase in information and computer data services, primarily due to increased computer software expenses, including $924,000 of expense related to the write-off of our previous commercial loan origination software, a $1.1 million increase in professional and legal expenses, primarily reflecting increased legal fees, and a $1.3 million increase in advertising and marketing expense, primarily reflecting the timing of direct mail marketing, printed media, and radio and television expenses. In addition, the current quarter includes $238,000 of merger related expenses. These increases were partially offset by a $1.4 million increase in capitalized loan origination costs, reflecting increased loan origination activity, primarily in the construction and land and one- to four-family residential loan categories. The increase compared to the same quarter a year ago primarily reflects increases in salary and employee benefits, information and computer data services expenses, and advertising and marketing expenses, partially offset by a decrease in occupancy and equipment costs. For the six months ended June 30, 2026, total non-interest expense was $210.6 million, compared to $202.6 million for the six months ended June 30, 2025.

Banner’s efficiency ratio was 62.80% for the second quarter of 2026, compared to 60.60% in the preceding quarter and 62.50% in the same quarter a year ago. Banner’s adjusted efficiency ratio, a non-GAAP financial measure, was 61.30% for the second quarter of 2026, compared to 59.45% in the preceding quarter and 60.28% in the year-ago quarter. See, "Additional Financial Information - Non-GAAP Financial Measures" on the final two pages of this press release for a discussion and reconciliation of non-GAAP financial measures.

Balance Sheet Review

Total assets were $16.59 billion at June 30, 2026, compared to $16.34 billion at March 31, 2026, and $16.44 billion at June 30, 2025. The increase compared to the prior quarter was primarily due to loan growth, partially offset by a reduction in securities. Securities and interest-bearing deposits held at other banks totaled $3.17 billion at June 30, 2026, compared to $3.24 billion at March 31, 2026 and $3.29 billion at June 30, 2025. The average effective duration of the securities portfolio was approximately 6.1 years and 6.6 years at June 30, 2026 and June 30, 2025, respectively.

Total loans receivable increased 2% to $11.99 billion at June 30, 2026, compared to $11.71 billion at March 31, 2026, and increased 3% from $11.69 billion at June 30, 2025. Commercial real estate loans totaled $4.14 billion at June 30, 2026, an increase of 1% compared to $4.11 billion at March 31, 2026, and an increase of 4% from $3.97 billion at June 30, 2025. The increases from both periods reflected a combination of new loan production and the transfer of commercial construction loans to the commercial real estate portfolio upon completion of the construction phase. Commercial business loans totaled $2.58 billion at June 30, 2026, an increase of 6% compared to $2.43 billion at March 31, 2026, and an increase of 5% from $2.47 billion at June 30, 2025. The increases from both periods reflected new loan production. Multifamily real estate loans increased 7% to $855.9 million at June 30, 2026, compared to $798.2 million at March 31, 2026, and decreased 1% from $860.7 million at June 30, 2025. The increase from the prior quarter primarily reflected the transfer of multifamily construction loans to the multifamily real estate portfolio upon completion of the construction phase, while the decrease from the prior year reflected loan payoffs that exceeded transfers from the multifamily construction portfolio. Consumer loans increased 7% to $827.0 million at June 30, 2026, compared to $774.0 million at March 31, 2026, and increased 13% compared to $732.5 million at June 30, 2025. The increases from both periods primarily reflected new loan production and advances on home equity revolving lines of credit.

Loans held for sale were $27.2 million at June 30, 2026, compared to $33.8 million at March 31, 2026, and $37.7 million at June 30, 2025. One- to four- family residential mortgage held for sale loans sold in the current quarter totaled $134.6 million, compared to $132.6 million in the preceding quarter, and $104.6 million in the second quarter a year ago. The decrease in loans held for sale at June 30, 2026, compared to both the preceding and prior year quarters, was primarily attributable to higher sales volumes of one- to four-family residential mortgage loans held for sale during the current quarter.

Total deposits were $13.79 billion at June 30, 2026, compared to $13.84 billion at March 31, 2026, and $13.53 billion a year ago. Core deposits decreased to $12.32 billion at June 30, 2026, compared to $12.38 billion at March 31, 2026, and increased compared to $12.05 billion at June 30, 2025. The decrease compared to the preceding quarter primarily reflects a decrease in interest-bearing transaction and savings accounts, as well as money market accounts, due to normal seasonal activity as clients use deposit balances to pay taxes, partially offset by an increase in non-interest-bearing deposits. The increase compared to the prior year quarter reflects increases in interest-bearing transaction and savings accounts. Core deposits remained stable at 89% of total deposits at June 30, 2026, March 31, 2026 and June 30, 2025. Certificates of deposit increased 1% to $1.47 billion at June 30, 2026, compared to $1.46 billion at March 31, 2026, and were flat compared to $1.48 billion a year earlier.

There were $320.0 million of outstanding FHLB advances at June 30, 2026, compared to no outstanding FHLB advances at March 31, 2026, and $565.0 million a year ago. The increase in FHLB advances during the current quarter is due to FHLB advances being temporarily used to fund the second quarter loan growth and seasonal deposit outflows. At June 30, 2026, off-balance sheet liquidity included additional borrowing capacity of $3.45 billion at the FHLB and $1.64 billion at the Federal Reserve, as well as federal funds line of credit agreements with other financial institutions of $125.0 million.

At June 30, 2026, total common shareholders’ equity was $2.00 billion, or 12.05% of total assets, compared to $1.97 billion, or 12.03% of total assets at March 31, 2026, and $1.87 billion, or 11.35% of total assets at June 30, 2025. The increase in total common shareholders’ equity from March 31, 2026, was primarily attributable to a $31.0 million increase in retained earnings resulting from $48.9 million in net income, partially offset by the accrual of $17.9 million in cash dividends during the second quarter of 2026. At June 30, 2026, tangible common shareholders’ equity, a non-GAAP financial measure, was $1.63 billion, or 10.02% of tangible assets, compared to $1.59 billion, or 9.97% of tangible assets, at March 31, 2026, and $1.49 billion, or 9.28% of tangible assets, a year ago. See "Additional Financial Information - Non-GAAP Financial Measures" on the final two pages of this press release for a reconciliation of non-GAAP financial measures.

Banner and Banner Bank continue to maintain capital levels in excess of the requirements to be categorized as "well-capitalized." At June 30, 2026, Banner’s estimated common equity Tier 1 capital ratio was 12.82%, its estimated Tier 1 leverage capital to average assets ratio was 11.79%, and its estimated total capital to risk-weighted assets ratio was 14.67%. These regulatory capital ratios are estimates, pending completion and filing of Banner’s regulatory reports.

Credit Quality

The allowance for credit losses - loans was $161.8 million, or 1.35% of total loans receivable and 295% of non-performing loans, at June 30, 2026, compared to $160.4 million, or 1.37% of total loans receivable and 353% of non-performing loans, at March 31, 2026, and $160.5 million, or 1.37% of total loans receivable and 373% of non-performing loans, at June 30, 2025. The allowance ratio remained stable compared to both prior periods, reflecting consistent portfolio composition and credit performance. Coverage of non-performing loans remained strong at 295% at June 30, 2026, compared to 353% at March 31, 2026. The year-over-year decline from 373% at June 30, 2025 reflects a moderate increase in non-performing loans over the past year, while the allowance level has remained stable and commensurate with the portfolio’s risk profile. In addition to the allowance for credit losses - loans, the allowance for credit losses - unfunded loan commitments was $15.1 million at June 30, 2026, compared to $12.9 million at March 31, 2026, and $12.8 million at June 30, 2025. Net loan charge-offs remained minimal at $101,000 in the second quarter of 2026, compared to net loan charge-offs of $1.2 million and $1.0 million in the preceding quarter and second quarter a year ago, respectively. Non-performing loans were $54.8 million at June 30, 2026, compared to $45.4 million at March 31, 2026, and $43.0 million at June 30, 2025. Despite the increase in non-performing loans, substandard loans declined to $218.4 million at June 30, 2026, from $235.0 million at March 31, 2026. Total non-performing assets were $60.5 million, or 0.36% of total assets, at June 30, 2026, compared to $51.7 million, or 0.32% of total assets, at March 31, 2026, and $49.8 million, or 0.30% of total assets, at June 30, 2025.

Conference Call

Banner will host a conference call on Thursday, July 23, 2026, at 8:00 a.m. PDT, to discuss its second quarter results. Interested investors may listen to the call live at www.bannerbank.com. Investment professionals are invited to dial (800) 715-9871 to participate in the call. A replay of the call will be available at www.bannerbank.com.

About the Company

Banner Corporation is a $16.59 billion bank holding company operating a commercial bank primarily in Washington, Oregon, California and Idaho through a network of branches offering a full range of deposit services and business, commercial real estate, construction, residential, agricultural and consumer loans. Visit Banner Bank on the Web at www.bannerbank.com.

Forward-Looking Statements

When used in this press release and in other documents filed with or furnished to the Securities and Exchange Commission (the "SEC"), in press releases or other public stockholder communications, or in oral statements made with the approval of an authorized executive officer, the words or phrases "may," "believe," "will," "will likely result," "are expected to," "will continue," "is anticipated," "estimate," "project," "plans," "potential," or similar expressions are intended to identify "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date such statements are made and based only on information then actually known to Banner. Banner does not undertake and specifically disclaims any obligation to revise any forward-looking statements to reflect the occurrence of anticipated or unanticipated events or circumstances after the date of such statements.

Forward-looking statements may relate to, among other things, future financial performance, strategic plans or objectives, revenues or earnings projections, and other financial or operational information. These statements are inherently subject to numerous risks and uncertainties, including ongoing market volatility and evolving global conditions, which may cause actual results to differ materially from those expressed or implied. These factors include, but are not limited to: (1) adverse impacts to economic conditions in our local market areas, other markets where the Company has lending relationships, or other aspects of the Company’s business operations or financial markets, including, without limitation, as a result of labor shortages, elevated inflation, recessionary pressures, or slowing economic growth; (2) changes in interest rate levels, volatility, and the timing and pace of such changes, including actions by the Federal Reserve, which could materially affect our net interest margin, funding costs, asset values, access to capital and liquidity; (3) the impact of inflation and monetary and fiscal policy responses thereto, and their impact on consumer and business behavior; (4) geopolitical developments and international conflicts, including but not limited to tensions or instability in Eastern Europe, South America, the Middle East, and Asia, or the imposition of new or increased tariffs and trade restrictions, which may disrupt financial markets, global supply chains, commodity prices, or economic activity in specific industry sectors, including, but not limited to, agriculture-based lending; (5) the effects of a federal government shutdown, debt ceiling standoff, or other fiscal policy uncertainty; (6) the impact of bank failures or adverse developments at other banks and related negative publicity about the banking industry in general on investor and depositor sentiment; (7) expectations regarding key growth initiatives and strategic priorities; (8) credit risks from lending activities, including changes in the level and direction of loan delinquencies and write-offs and changes in estimates of the adequacy of the allowance for credit losses, which could necessitate additional provisions for credit losses, resulting both from loans originated and loans acquired from other financial institutions; (9) results of examinations by regulatory authorities, which could result in the imposition of penalties, required changes to our business practices, or additional reserves; (10) competitive pressures among depository and non-depository institutions that adversely affect pricing, market share, deposit flows or product offerings; (11) fluctuations in real estate values; (12) the ability to adapt to rapid technological changes, including advancements in artificial intelligence, digital banking platforms, and cybersecurity; (13) vulnerabilities in information systems or third-party service providers, including disruptions, breaches, or attacks; (14) market volatility or deterioration in capital markets affecting liquidity, valuations, or investor confidence; (15) the costs, effects and outcomes of litigation or other legal proceedings involving the Company; (16) legislation or regulatory changes, including but not limited to shifts in capital requirements, banking regulation, tax laws, or consumer protection laws; (17) climate-related risks and natural disasters, which may affect loan collateral, operations, or compliance obligations; (18) changes in accounting principles, policies or guidelines; (19) the impact of pending and future acquisitions or business combinations, including related goodwill impairment risks and integration challenges; (20) effects of critical accounting policies and judgments, including the use of estimates in determining fair value of certain of our assets, which estimates may prove to be incorrect and result in significant declines in valuation; (21) other economic, competitive, governmental, regulatory, and technological factors affecting our operations, pricing, products and services; and (22) other risks detailed from time to time in Banner’s other reports filed with and furnished to the Securities and Exchange Commission including Banner’s Quarterly Reports on Form 10-Q and Annual Reports on Form 10-K.

Further, statements about the potential effects of Banner’s proposed merger with Pacific Financial on Banner’s business, financial results, and condition may constitute forward-looking statements and are subject to the risk that the actual effects may differ, possibly materially, from what is reflected in the forward-looking statements due to factors and future developments which are uncertain, unpredictable and in many cases beyond Banner’s control, including, but are not limited to the risk that: (1) the business of Pacific Financial may not be integrated with Banner’s business successfully or such integration may be more difficult, time-consuming or costly than expected; (2) any of the anticipated benefits of the merger may not be realized or may not be realized within the expected time period; (3) customer and employee relationships and business operations may be disrupted by the merger or the announcement of the merger, and the parties may be challenged in retaining key relationships both during the pendency of the merger and following the completion of the merger if that occurs; (4) the parties may not meet expectations regarding the timing of the merger; (5) required regulatory approvals or the approval of Pacific Financial shareholders may not be obtained or such approvals may be more difficult, time-consuming or costly than expected; (6) there may be challenges in satisfying the other conditions to completion of the merger or the merger may fail to close for any other reason; (7) management’s attention may be diverted from ongoing business operations and opportunities due to the merger; (8) there may be potential negative impacts caused by the dilution resulting from Banner’s issuance of shares of Banner Common Stock in connection with the merger; and (9) other factors detailed in Banner’s filings with the SEC.

Additional Information About the Pacific Financial Corporation Merger and Where to Find It

This press release does not constitute an offer to sell or the solicitation of an offer to buy or exchange any securities or a solicitation of any vote or approval with respect to the proposed transaction.

In connection with the proposed merger, a registration statement on Form S-4 was filed with the SEC and declared effective on June 16, 2026. The proxy statement of Pacific Financial and the prospectus of Banner included therein has been mailed to shareholders of Pacific Financial in connection with their votes on the merger. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT AND PROXY STATEMENT/PROSPECTUS (AND ANY OTHER DOCUMENTS FILED WITH THE SEC IN CONNECTION WITH THE PROPOSED TRANSACTION OR INCORPORATED BY REFERENCE INTO THE PROXY STATEMENT/PROSPECTUS) BECAUSE SUCH DOCUMENTS CONTAIN IMPORTANT INFORMATION REGARDING THE PROPOSED MERGER AND RELATED MATTERS.

The proxy statement/prospectus and other documents relating to the merger filed by Banner can be obtained free of charge from the SEC’s website at www.sec.gov. These documents also can be obtained free of charge through Banner’s investor relations website at https://investor.bannerbank.com by clicking on "SEC Filings" under the "Financials" tab. Alternatively, these documents, when available, can be obtained free of charge from Banner upon written request to Banner Corporation, Attn: Investor Relations, 10 South First Avenue, Walla Walla, Washington 99362 or by calling (509) 527-3636. The contents of the websites referenced above are not deemed to be incorporated by reference into the registration statement or the proxy statement/prospectus.

Participants in the Solicitation

Banner, Pacific Financial, and certain of their directors, executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies from the shareholders of Pacific Financial in connection with the proposed Merger under SEC rules. Information about the directors and executive officers of Banner and Pacific Financial is included in the proxy statement/prospectus for the proposed transaction filed with the SEC. These documents may be obtained free of charge in the manner described above under "Additional Information About the Pacific Financial Corporation Merger and Where to Find It."

Information about such directors and executive officers of Banner and their direct or indirect interests, by security holdings or otherwise, can be found in Banner’s proxy statement in connection with its 2026 annual meeting of shareholders, as filed with the SEC on April 6, 2026, and other documents subsequently filed by Banner with the SEC. To the extent holdings of common stock by its directors or executive officers have changed since the amounts set forth in Banner’s proxy statement for its 2026 annual meeting of shareholders, such changes have been or will be reflected in filings with the SEC on Forms 3, 4, and 5. These documents can be obtained free of charge in the manner described above under "Additional Information About the Pacific Financial Corporation Merger and Where to Find It."