Equity Bancshares, Inc. Third Quarter Results Highlighted by Balance Sheet and Net Interest Margin Expansion

Company Completed Acquisition of NBC Oklahoma, Adding Seven Locations

WICHITA, Kansas, October 14, 2025 (BUSINESSWIRE) – Equity Bancshares, Inc. (NYSE: EQBK), (“Equity”, “the Company,” “we,” “us,” “our”), the Wichita-based holding company of Equity Bank, reported a net loss of $29.7 million or $1.55 per diluted share for the quarter ended September 30, 2025. Adjusting for pre-tax expenses associated with our merger with NBC Corp of Oklahoma ("NBC"), losses realized on the repositioning of our bond portfolio and double-count provisioning for NBC loans pre-tax income was $28.4 million. Tax effecting at 21%, adjusted net income was $22.5 million, or $1.17 per diluted share.

“Our Company continued to execute in the third quarter of 2025 as we closed and integrated our merger with NBC, announced a definitive agreement with Frontier Holdings LLC ("Frontier"), reissued subordinated debt, repositioned the remainder of our investment portfolio and continued to service our customers and our communities," said Brad S. Elliott, Chairman and CEO of Equity. “Our accomplishments in the quarter and throughout 2025 position our Company for continued success as we execute on our mission to empower our employees, customers and communities.

“I couldn’t be more proud of our employees and partners. Transformational quarters like these are not possible without excellent operators committing to accomplishing significant tasks,” Mr. Elliott continued. “Our teams are motivated to realize the benefits of our continued expansion efforts and to continue driving our organization forward.”

Notable Items:

Financial Results for the Quarter Ended September 30, 2025

Net loss allocable to common stockholders was $29.7 million, or $(1.55) per diluted share, as compared to net income allocable to common stockholders of $15.3 million, or $0.86 per diluted share in the prior quarter. The drivers of the periodic change are discussed in detail in the following sections. Excluding merger expenses, provisioning for acquired loan assets, and the cost realized in repositioning the bond portfolio pre-tax earnings were $28.4 million. Tax effected at 21% results in core net income of $22.5 million, or $1.17 per diluted share.

Net Interest Income

Net interest income was $62.5 million for the period, as compared to $49.8 million in the previous quarter. The increase was primarily driven by the addition of assets from the NBC merger which closed on July 2, 2025. The repositioning of investments was completed in the second half of the quarter, with benefits expected to be fully realized in future periods.

Average interest-bearing liabilities as a percentage of average interest earning assets declined to 74.2%, while total average interest earning assets increased $783.2 million during the quarter. Yield on interest earning assets increased by 27 basis points, while cost of interest bearing liabilities increased 3 basis points, both primarily attributable to the acquisition of NBC.

Provision for Credit Losses

During the quarter, there was a provision of $6.2 million compared to $19 thousand in the previous quarter. The primary driver of the periodic change was the addition of non-purchased credit deteriorated loans from the NBC merger. As of the end of the quarter, these loans had balances of $631.2 million and contributed $6.2 million to the allowance for credit losses all of which required funding through provision in the quarter. Exclusive of these assets there would not have been any provisioning during the quarter as charge-offs were predominantly on loans with specific reserves at the end of the previous quarter and loan balances were materially consistent.

During the quarter, the bank realized net charge-offs of $1.1 million as compared to $573 thousand, realizing an annualized ratio of charge-offs to average loans of 10 basis points. Year to date, the bank has realized net charge-offs $1.8 million or 6 basis points of average loans on an annualized basis.

At the close of the quarter, the ratio of allowance for credit losses to gross loans held for investment was 1.25%. The Company continues to estimate the allowance for credit loss with assumptions that anticipate slower prepayment rates and continued market disruption caused by trade policy, elevated inflation, supply chain issues and the impact of monetary policy on consumers and businesses.

Non-Interest Income

Total non-interest income for the quarter included a loss of $53.4 million on the sale of securities related to our repositioning during the quarter. Excluding this amount, adjusted non-interest income was $8.9 million for the quarter, as compared to $8.6 million linked quarter an increase of $284 thousand, or 3.3%. The periodic change was driven by the addition of NBC during the quarter and realized in service revenues including treasury, debit card, credit card, mortgage and trust and wealth management.

Non-Interest Expense

Total non-interest expense for the quarter was $49.1 million as compared to $40.0 million for the previous quarter. Adjusting for merger expenses in both periods, non-interest expense increased $3.3 million, or 8.3%. The increase during the period is primarily attributable to the addition of NBC at the beginning of the quarter. System conversions for NBC took place at the end of August. Exclusive of merger expenses, annualized non-interest expense as a percentage of average assets declined 20 basis points to 2.8%.

Also included in non-interest expense for the quarter were losses related to the disposition of other real estate owned totaling $777 thousand.

Income Tax Expense

At September 30, 2025, the effective tax rate for the quarter was 20.5% as compared to a rate of 16.9% for the quarter ended June 30, 2025. The year-to-date tax rate is not meaningful through September 30, 2025 compared to 18.6% at June 30, 2025.

The increase in the quarter over quarter tax rate (indicating a greater tax benefit with a pre-tax loss) was the result of additional tax benefits associated with the loss on the sale of bonds, generating pre-tax losses in the current quarter in conjunction with the reversal of tax expense booked in previous quarters offset by return to provision adjustments related to the 2024 federal income tax return. The anticipated tax rate for the full year with the loss on the sale of the bonds is anticipated to be between 17% and 19%.

Loans, Total Assets and Funding

Loans held for investment were $4.3 billion at period end, increasing $667.9 million during the quarter. At merger close, NBC contributed loans held for investment of $664.6 million. Excluding these balances, loan held for investment grew $3.3 million in the quarter and $103.3 million year to date. Total assets closed the quarter at $6.4 billion, a $982.4 million increase from prior quarter end.

Total deposit balances closed the quarter at $5.1 billion as compared to $4.2 billion as of the previous quarter end, an increase of $859.9 million, or 20.3%. NBC contributed balances of $808.0 million as of the close date and brokered deposits increased $14.6 million. Excluding these items, organic deposit growth during the quarter was $37.3 million. Brokered deposits closed the quarter at 3.0% of total deposits down from 3.3% linked quarter.

Asset Quality

Nonperforming assets were $52.6 million, or 0.8% of total assets, compared to $45.7 million as of the end of the previous quarter, or 0.9% of total assets. Non-accrual loans were $48.6 million, as compared to $42.6 million at the end of the previous quarter. Total classified assets, including loans rated special mention or worse, other real estate owned, excluding previous branch locations, and other repossessed assets were $82.9 million, or 12.4% of regulatory capital, up from $71.0 million, or 11.4% of regulatory capital as of the end of the previous quarter. The periodic increase in nonaccrual and classified assets is attributable to our acquisition of NBC, contributing $7.0 million in nonaccrual balances and $16.7 million in classified assets.

Capital

Quarter over quarter, book capital increased $76.3 million to $711.9 million. The increase is reflective of the capital issued to facilitate the NBC transaction in addition to current period earnings exclusive of losses realized on the repositioning of our investment portfolio. Tangible book value and Tangible book value per share closed the quarter at $605.6 million and $31.69, down from $32.17 linked quarter. The decline reflects the impact of the NBC transaction.

The Company’s ratio of common equity tier 1 capital to risk-weighted assets was 12.9%, the total capital to risk-weighted assets was 16.1% and the total leverage ratio was 10.4% at September 30, 2025. At June 30, 2025, the Company’s common equity tier 1 capital to risk-weighted assets ratio was 15.0%, the total capital to risk-weighted assets ratio was 16.8% and the total leverage ratio was 12.1%.

Equity Bank's ratio of common equity tier 1 capital to risk-weighted assets was 13.2%, total capital to risk-weighted assets was 14.3% and the total leverage ratio was 10.3% at September 30, 2025. At June 30, 2025, Equity Bank’s ratio of common equity tier 1 capital to risk-weighted assets was 14.4%, the ratio of total capital to risk-weighted assets was 15.6% and the total leverage ratio was 11.1%.

Non-GAAP Financial Measures

In addition to evaluating the Company’s results of operations in accordance with accounting principles generally accepted in the United States of America (“GAAP”), management periodically supplements this evaluation with an analysis of certain non-GAAP financial measures that are intended to provide the reader with additional perspectives on operating results, financial condition and performance trends, while facilitating comparisons with the performance of other financial institutions. Non-GAAP financial measures are not a substitute for GAAP measures, rather, they should be read and used in conjunction with the Company’s GAAP financial information.

The efficiency ratio is a common comparable metric used by banks to understand the expense structure relative to total revenue. In other words, for every dollar of total revenue recognized, how much of that dollar is expended. To improve the comparability of the ratio to our peers, non-core items are excluded. To improve transparency and acknowledging that banks are not consistent in their definition of the efficiency ratio, we include our calculation of this non-GAAP measure.

Core income calculations are a non-GAAP measure that management believes is an effective alternative measure of how efficiently the company utilizes its asset base. Core income is calculated by adjusting GAAP income by non-core gains and losses and excluding non-core expenses, net of tax, as outlined in the table below. We calculate (a) core net income (loss) allocable to common stockholders plus merger expenses, tax effected non-core items, goodwill impairment and BOLI tax adjustment, less gain (loss) from securities transactions; (b) adjusted operating net income as net income (loss) allocable to common stockholders plus adjusted non-core items, tax effected non-core items and BOLI tax adjustments

Core return on average assets before income tax provision and provision for loan losses is a measure that the Company uses to understand fundamental operating performance before these expenses. Used as a ratio relative to average assets, we believe it demonstrates “core” performance and can be viewed as an alternative measure of how efficiently the Company services its asset base. Used as a ratio relative to average equity, it can function as an alternative measure of the Company’s earnings performance in relationship to its equity.

Core return on average equity is a non-GAAP measure generally used by financial analysts and investment bankers to evaluate financial institutions. We calculate by taking core net income allocable to common stockholders divided by a simple average of net income and core net income plus average stockholders' equity. For return on average equity, the most directly comparable financial measure calculated in accordance with GAAP is return on average equity.

Core earnings per share is a non-GAAP financial measures we calculate by taking GAAP net income less non-core impacts to net income to arrive at core net income and core diluted earnings per share. This financial measure is used by financial statement users to evaluate the core financial performance of the Company

Tangible common equity and related measures are non-GAAP financial measures that exclude the impact of intangible assets, net of deferred taxes, and their related amortization. These financial measures are useful for evaluating the performance of a business consistently, whether acquired or developed internally. Return on average tangible common equity is used by management and readers of our financial statements to understand how efficiently the Company is

deploying its common equity. Companies that are able to demonstrate more efficient use of common equity are more likely to be viewed favorably by current and prospective investors.

The Company believes that disclosing these non-GAAP financial measures is both useful internally and is expected by our investors and analysts in order to understand the overall performance of the Company. Other companies may calculate and define their non-GAAP financial measures and supplemental data differently. A reconciliation of GAAP financial measures to non-GAAP measures and other performance ratios, as adjusted, are included in Table 6 in the following press release tables.

Conference Call and Webcast

Equity’s Chairman and Chief Executive Officer, Brad Elliott, and Chief Financial Officer, Chris Navratil, will hold a conference call and webcast to discuss third quarter results on Wednesday, October 15, 2025, at 10 a.m. eastern time or 9 a.m. central time.

Those wishing to participate in the conference call should call the applicable number below and reference the Access Code below.

United States (Local): +1 646 844 6383

United States (Toll-Free): +1 833 470 1428

Global Dial-In Numbers

Access Code: 090340

To eliminate wait times, conference call participants may pre-register using this registration link. After registering, a confirmation with access details will be sent via email.

A replay of the call and webcast will be available two hours following the close of the call until October 31, 2025, accessible at investor.equitybank.com. Webcast URL: https://events.q4inc.com/attendee/114655136

About Equity Bancshares, Inc.

Equity Bancshares, Inc. is the holding company for Equity Bank, offering a full range of financial solutions, including commercial loans, consumer banking, mortgage loans, trust and wealth management services and treasury management services, while delivering the high-quality, relationship-based customer service of a community bank. Equity’s common stock is traded on the New York Stock Exchange. under the symbol “EQBK.” Learn more at www.equitybank.com.

Special Note Concerning Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements reflect the current views of Equity’s management with respect to, among other things, future events and Equity’s financial performance. These statements are often, but not always, made through the use of words or phrases such as “may,” “should,” “could,” “predict,” “potential,” “believe,” “will likely result,” “expect,” “continue,” “will,” “anticipate,” “seek,” “estimate,” “intend,” “plan,” “project,” “positioned,” “forecast,” “goal,” “target,” “would” and “outlook,” or the negative variations of those words or other comparable words of a future or forward-looking nature. These forward-looking statements are not historical facts, and are based on current expectations, estimates and projections about Equity’s industry, management’s beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond Equity’s control. Accordingly, Equity cautions you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although Equity believes that the expectations reflected in these forward-looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements. Factors that could cause actual results to differ materially from Equity’s expectations include competition from other financial institutions and

bank holding companies; the effects of and changes in trade, monetary and fiscal policies and laws, including interest rate policies of the Federal Reserve Board; changes in the demand for loans; fluctuations in value of collateral and loan reserves; inflation, interest rate, market and monetary fluctuations; changes in consumer spending, borrowing and savings habits; the possibility that the expected benefits related to the proposed transaction with Frontier Bank (“Frontier”) may not materialize as expected; the proposed transaction not being timely completed, if completed at all; prior to the completion of the proposed transaction, the business of Frontier experiencing disruptions due to transaction-related uncertainty or other factors making it more difficult to maintain relationships with employees, customers, other business partners or governmental entities, difficulty retaining key employees; the ability to obtain regulatory approval of the Frontier transactions; and the ability to successfully implement integration strategies or to achieve expected synergies and operating efficiencies within the expected time-frames or at all; and similar variables. The foregoing list of factors is not exhaustive.

For discussion of these and other risks that may cause actual results to differ from expectations, please refer to “Cautionary Note Regarding Forward-Looking Statements” and “Risk Factors” in Equity’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 7, 2025, and any updates to those risk factors set forth in Equity’s subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K. If one or more events related to these or other risks or uncertainties materialize, or if Equity’s underlying assumptions prove to be incorrect, actual results may differ materially from what Equity anticipates. Accordingly, you should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made, and Equity does not undertake any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. New risks and uncertainties arise from time to time and it is not possible for us to predict those events or how they may affect us. In addition, Equity cannot assess the impact of each factor on Equity’s business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. All forward-looking statements, expressed or implied, included in this press release are expressly qualified in their entirety by this cautionary statement. This cautionary statement should also be considered in connection with any subsequent written or oral forward-looking statements that Equity or persons acting on Equity’s behalf may issue.

Important Additional Information

In connection with the proposed merger of Equity and Frontier, Equity intends to file with the SEC a registration statement on Form S-4 to register the shares of Equity’s common stock to be issued to the members of Frontier. The registration statement will include a proxy statement/prospectus, which will be sent to the members of Frontier seeking their approval of the proposed transaction.

WE URGE INVESTORS AND SECURITY HOLDERS TO READ THE REGISTRATION STATEMENT ON FORM S-4, THE PROXY STATEMENT/PROSPECTUS INCLUDED WITHIN THE REGISTRATION STATEMENT ON FORM S-4 AND ANY OTHER RELEVANT DOCUMENTS TO BE FILED WITH THE SEC IN CONNECTION WITH THE PROPOSED TRANSACTION BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT EQUITY, FRONTIER AND THE PROPOSED TRANSACTION.

The documents filed by Equity with the SEC may be obtained free of charge at Equity’s investor relations website at investor.equitybank.com or at the SEC’s website at www.sec.gov. Alternatively, these documents, when available, can be obtained free of charge from Equity upon written request to Equity Bancshares, Inc., Attn: Investor Relations, 7701 East Kellogg Drive, Suite 300, Wichita, Kansas 67207 or by calling (316) 612-6000.

No Offer or Solicitation

This press release shall not constitute an offer to sell, a solicitation of an offer to sell, or the solicitation or an offer to buy any securities. There will be no sale of securities in any jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirement of Section 10 of the Securities Act of 1933, as amended.

Investor Contact:

Brian J. Katzfey

VP, Director of Corporate Development and Investor Relations

Equity Bancshares, Inc.

(316) 858-3128

[email protected]

Media Contact:

Russell Colburn

Public Relations and Communication Manager

Equity Bancshares, Inc.

(913) 583-8011

[email protected]

Unaudited Financial Tables

TABLE 3. CONSOLIDATED BALANCE SHEETS (Unaudited)

(Dollars in thousands)