# EDGAR Filing Document

**Accession Number:** 0001967306
**File Stem:** 0001104659-25-123303
**Filing Date:** 2025-12
**Character Count:** 354466
**Document Hash:** 4d3c41cbff86a378e8141b816eddd714
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-123303.hdr.sgml**: 20251219

**ACCESSION NUMBER**: 0001104659-25-123303

**CONFORMED SUBMISSION TYPE**: 10-K

**PUBLIC DOCUMENT COUNT**: 112

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251219

**DATE AS OF CHANGE**: 20251219

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mercer Bancorp, Inc.
- **CENTRAL INDEX KEY:** 0001967306
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 923452469
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 10-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56575
- **FILM NUMBER:** 251588661

**BUSINESS ADDRESS:**
- **STREET 1:** 1100 IRMSCHER BLVD
- **CITY:** CELINA
- **STATE:** OH
- **ZIP:** 45822
- **BUSINESS PHONE:** (419) 586-5158

**MAIL ADDRESS:**
- **STREET 1:** 1100 IRMSCHER BLVD
- **CITY:** CELINA
- **STATE:** OH
- **ZIP:** 45822

?xml version='1.0' encoding='ASCII'? Mercer Bancorp, Inc._September 30, 2025

[**Table of Contents**](#TOC)

------

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 10-K**

**(Mark One)**

&nbsp;&nbsp;&nbsp;&nbsp;**☒** **ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**For the fiscal year ended September 30, 2025**

**OR**

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

**FOR THE TRANSITION PERIOD FROM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TO&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;** 

**Commission File Number 000-56575**

**Mercer Bancorp, Inc.**

**(Exact name of Registrant as specified in its Charter)**

---

| | |
|:---|:---|
| **Maryland** | **92-3452469** |
| **(State or other jurisdiction ofincorporation or organization)** | **(I.R.S. EmployerIdentification No.)** |
| **1100 Irmscher BlvdCelina, Ohio**  | **45822** |
| **(Address of principal executive offices)** | **(Zip Code)** |

---

**Registrant's telephone number, including area code: (419) 586-5158**

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
|  | **Trading** |  |
| **Title of each class** | **Symbol(s)** | **Name of each exchange on which registered** |

---

Securities registered pursuant to Section 12(g) of the Act: Common Stock, par value $0.01 per share

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

---

| | | | |
|:---|:---|:---|:---|
| Large accelerated filer  | ☐ | Accelerated filer  | ☐ |
| Non-accelerated filer  | ☒ | Smaller reporting company | ☒ |
| Emerging growth company  | ☒ |  |  |

---

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive oﬃcers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant, based on the closing price of the shares of common stock on the end of the most recently completed second fiscal quarter was $14.2 million.

The number of shares of Registrant's common stock outstanding as of December 18, 2025 was 1,027,135.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Definitive Proxy Statement for the 2025 Annual Meeting of Stockholders are incorporated by reference in Part III of this Form 10-K.

Cl <br> Auditor Firm Id: PCAOB ID 539 Auditor Name: Clark, Schaefer, Hacket & Co. Auditor Location: Cincinnati, Ohio

------

[**Table of Contents**](#TOC)

#### **TABLE OF CONTENTS**

---

| | |
|:---|:---|
|  | Page |
| [**Part I**](#PARTI_230009) | [**Part I**](#PARTI_230009) |
| [Item 1. Business](#Item1Business_590476) | 1 |
| [Item 1A. Risk Factors](#Item1ARiskFactors_274693) | 27 |
| [Item 1B. Unresolved Staff Comments](#Item1BUnresolvedStaffComments_172146) | 28 |
| [Item 1C. Cybersecurity](#Item_1CCybersecurity) | 28 |
| [Item 2. Properties](#Item2Properties_743079) | 29 |
| [Item 3. Legal Proceedings](#Item3LegalProceedings_947759) | 30 |
| [Item 4. Mine Safety Disclosures](#Item4MineSafetyDisclosures_364374) | 30 |
| [**Part II**](#PARTII_82083) | [**Part II**](#PARTII_82083) |
| [Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities](#Item5MarketforRegistrantsCommonEquityRel) | 31 |
| [Item 6. \[Reserved\]](#Item6SelectedFinancialData_417606)  | 31 |
| [Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations](#Item7ManagementsDiscussionandAnalysisofF) | 31 |
| [Item 7A. Quantitative and Qualitative Disclosures About Market Risk](#Item7AQuantitativeandQualitativeDisclosu) | 43 |
| [Item 8. Financial Statements and Supplementary Data](#Item8FinancialStatementsandSupplementary) | 43 |
| [Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure](#Item9ChangesinandDisagreementswithAccoun) | 43 |
| [Item 9A. Controls and Procedures](#Item9AControlsandProcedures_416405) | 43 |
| [Item 9B. Other Information](#Item9BOtherInformation_543290) | 44 |
| [Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections](#Item9CDisclosureRegardingForeignJurisdic) | 44 |
| [**Part III**](#PARTIII_443169) | [**Part III**](#PARTIII_443169) |
| [Item 10. Directors, Executive Officers and Corporate Governance](#Item10DirectorsExecutiveOfficersandCorpo) | 45 |
| [Item 11. Executive Compensation](#Item11ExecutiveCompensation_385884) | 45 |
| [Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters](#Item12SecurityOwnershipofCertainBenefici) | 45 |
| [Item 13. Certain Relationships and Related Transactions, and Director Independence](#Item13CertainRelationshipsandRelatedTran) | 45 |
| [Item 14. Principal Accounting Fees and Services](#Item14PrincipalAccountantFeesandServices) | 45 |
| [**Part IV**](#PartIV_159307) | [**Part IV**](#PartIV_159307) |
| [Item 15. Exhibits and Financial Statement Schedules](#Item15ExhibitsandFinancialStatementSched) | 46 |
| [Item 16. Form 10-K Summary](#Item16Form10KSummary_292657) | 47 |
| [Index to Financial Statements](#Index) | F-1 |
| [Signature Page](#SIGNATURES_509751) | F-46 |

---

[**Table of Contents**](#TOC)

#### PART I

#### Item 1. Business

#### Forward-Looking Statements
This Annual Report on Form 10-K of Mercer Bancorp, Inc. (which we may refer to as "we," "us," the "Company" or "Mercer Bancorp") contains forward-looking statements, which can be identified by the use of words such as "estimate," "project," "believe," "intend," "anticipate," "assume," "plan," "seek," "expect," "will," "may," "should," "indicate," "would," "believe," "contemplate," "continue," "target" and words of similar meaning. These forward-looking statements include, but are not limited to:

● statements of our goals, intentions and expectations;

● statements regarding our business plans, prospects, growth and operating strategies;

● statements regarding the asset quality of our loan and investment portfolios; and

● estimates of our risks and future costs and benefits.

These forward-looking statements are based on our current beliefs and expectations and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control. In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change. We are under no duty to and do not take any obligation to update any forward-looking statements after the date of this Annual Report on Form 10-K.

The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations expressed in the forward-looking statements:

● general economic conditions, either nationally or in our market area, which are worse than expected, including the effects of inflation and monetary policy;

● conditions affecting our local agricultural industry, such as adverse weather conditions and the impact of government regulations, including changes in price supports, tariffs on agricultural products, trade agreements, subsidies and environmental regulations, any of which may affect the ability of our agricultural customers to repay their loans and lead to reduced consumer spending, lower economic growth, and decreased demand for our products;

● changes in the interest rate environment that reduce our margins and yields, the fair value of our financial instruments, or our level of loan originations, or increase the level of defaults, losses and prepayments within our loan portfolio;

● adverse changes in the securities markets;

● 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;

● our ability to manage market risk, credit risk and operational risk;

● our ability to access cost-effective funding;

● changes in liquidity, including the amount and composition of our deposits, including the percentage of uninsured deposits in our portfolio;

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● fluctuations in real estate values and in the conditions of the residential real estate, commercial real estate, and agricultural real estate markets;

● demand for loans and deposits in our market area;

● our ability to implement and change our business strategies, including our ability to introduce new products and services, enter new markets and capitalize on growth opportunities, and successfully integrate any acquired assets, liabilities, customers, systems and personnel;

● competition among depository and other financial institutions;

● changes in laws or government regulations or policies affecting financial institutions, including changes in regulatory fees, capital requirements and insurance premiums;

● changes in the quality or composition of our loan or investment portfolios;

● technological changes that may be more difficult or expensive than expected;

● the inability of third-party providers to perform as expected;

● a failure or breach of our operational or information security systems or infrastructure, including cyberattacks;

● our ability to enter new markets successfully and capitalize on growth opportunities;

● changes in consumer spending, borrowing and savings habits;

● changes in accounting policies and practices, as may be adopted by the bank regulatory agencies, the Financial Accounting Standards Board, the Securities and Exchange Commission or the Public Company Accounting Oversight Board;

● including our ability to introduce new products and services, enter new markets and capitalize on growth opportunities, and successfully integrate any acquired assets, liabilities, customers, systems and personnel;

● our ability to retain key employees;

● changes in the financial condition, results of operations or future prospects of issuers of securities that we own; and

● public health emergencies, including the COVID-19 pandemic.

Because of these and a wide variety of other uncertainties, our actual future results may be materially different from the results indicated by these forward-looking statements.

**Business of Mercer Bancorp**

Mercer Bancorp was incorporated in the State of Maryland on March 7, 2023 for the purpose of becoming the registered bank holding company for Mercer Savings Bank (the "Bank") upon the consummation of the Bank's mutual to stock conversion and initial stock offering, which was completed on July 26, 2023. In connection with the conversion, the Company sold 972,970 shares of common stock, par value $0.01 per share, which included 81,838 shares sold to the Bank's Employee Stock Ownership Plan, for gross offering proceeds (before deducting offering expenses) of approximately $9.7 million, based on the offering price of $10.00 per share. The Company also contributed 50,000

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shares of common stock and $100,000 in cash to the Mercer Savings Charitable Foundation, Inc. Beginning July 27, 2023, the Company's common stock is quoted on the OTCQB Market under the symbol "MSBB." As a bank holding company, Mercer Bancorp is regulated by the Federal Reserve.

As of September 30, 2025, the Company had consolidated total assets of $176.2 million, total deposits of $144.0 million and stockholders' equity of $24.6 million. Since its incorporation, Mercer Bancorp's primary business activities have included holding the common stock of the Bank, contributions to the Mercer Savings Charitable Foundation, Inc., retaining approximately 50.0% of the net proceeds of our initial stock offering, and making a loan to the Bank's Employee Stock Ownership Plan.

Our cash flows depend on earnings from the investment of the net proceeds from the stock offering that we retained, and any dividends we may receive from the Bank. We neither own nor lease any property, but instead pay a fee to the Bank for the use of its premises, equipment and furniture. At the present time, we employ only persons who are officers of the Bank to serve as officers of Mercer Bancorp. We also use the support staff of the Bank from time to time and pay a fee to the Bank for the time employees of the Bank devote to the Company; however, these individuals are not separately compensated by Mercer Bancorp. Mercer Bancorp may hire additional employees, as appropriate, to the extent it expands its business in the future.

Our executive offices are located at 1100 Irmscher Blvd, Celina, Ohio 45822, and our telephone number at that address is (419) 586-5158. Our website address is *www.mercersavings.com*. Information on our website is not incorporated into this Annual Report on Form 10-K and should not be considered part of this Annual Report.

Mercer Bancorp files interim, quarterly and annual reports with the Securities and Exchange Commission (the "SEC"). The SEC maintains an Internet site (www.sec.gov) that contains reports, proxy and information statements and other information regarding issuers such as Mercer Bancorp that file electronically with the SEC. All filed SEC reports and interim filings can also be obtained, free of charge, from our website on the "Investor Relations" page.

**Business of Mercer Savings Bank**

**General**

Originally chartered in 1888, Mercer Savings Bank is an Ohio-chartered bank and the wholly-owned subsidiary of Mercer Bancorp. Our headquarters are located in Celina, Ohio. We are subject to comprehensive regulation and examination by the Ohio Division of Financial Institutions (the "ODFI") and the Federal Deposit Insurance Corporation (the "FDIC").

Our loan portfolio consists primarily of residential mortgage loans secured by one- to four-family residential properties and agricultural real estate loans secured by farmland located in our primary market area. To a lesser extent, we also originate multifamily real estate loans, commercial real estate loans, construction and land loans, home equity lines of credit, commercial and industrial loans, and consumer loans. We generally retain the loans that we originate in our portfolio. However, in recent years, subject to market conditions and periodic review of our asset/liability management needs, we have determined to sell certain conforming, fixed-rate residential mortgages with longer terms upon origination, with servicing rights retained, to help limit our interest rate risk exposure and generate fee income. We intend to continue to seek to expand our residential real estate and agricultural real estate portfolios. Additionally, in January 2023, we began implementing an indirect automobile lending program, in which loan applications are referred to us by car dealerships. Our management has experience with indirect automobile lending and we intend to prudently grow that segment of the loan portfolio. We intend to retain a portion of these automobile loans and intend to sell certain of these automobile loans that we originate. We also invest in securities, which have historically consisted primarily of mortgage-backed securities and obligations issued by U.S. government sponsored enterprises, state and municipal securities. We offer a variety of deposit accounts including checking accounts, savings accounts and certificates of deposit. Our primary source of funding is core deposits. However, we also utilize advances from the Federal Home Loan Bank of Cincinnati and brokered deposits for liquidity and asset/liability management purposes, and may attempt to attract municipal deposits to a lesser extent.

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As of September 30, 2025, we had 38 employees, including 31 full-time employees.

The Bank's main office is located at 1100 Irmscher Blvd, Celina, Ohio 45822, and its telephone number at that address is (419) 586-5158. Our website address is *www.mercersavings.com*. Information on our website is not incorporated into this Annual Report on Form 10-K and should not be considered part of this Annual Report.

#### Market Area
We consider our primary market area for loan originations and deposit gathering to be Mercer and Darke Counties in western Ohio and contiguous areas, including Adams and Jay Counties in eastern Indiana. We conduct our business through four branch offices in rural communities in western Ohio and two branch offices in eastern Indiana. We have two branch offices in Celina, Ohio, which is the county seat of Mercer County, as well as one office in Fort Recovery, Ohio, and one office in Greenville, Ohio, which is the county seat of adjacent Darke County. We also expanded our geographic footprint and established a fifth branch office during 2025 in Berne, Adams County, in eastern Indiana, where we are an active lender. We believe this branch location will expand our access to customers and core deposits in that part of our market area. Also, we have added a mobile branch which will primarily offer deposit services in our eastern Indiana market area. In addition to our branch network, we offer online and mobile banking.

Our market area is primarily rural, with a number of smaller population centers located throughout the region. The local economy consists largely of agricultural activities, with a cross-section of other economic sectors, including healthcare services, manufacturing, construction and transportation, with a concentration of small businesses. Darke County is one of the top agricultural producers in Ohio. Agricultural activities include the farming of soybeans, corn and wheat and production of poultry, eggs and pork. As is typical of more rural areas, non-agricultural employment includes a somewhat higher proportion of manufacturing-based employment. In Indiana, our market area has a concentration of religious communities traditionally focused on family farming activities as well as furniture-making.

According to published statistics, the 2025 estimated population of Mercer and Darke Counties is 42,400 and 51,492, respectively. Additionally, the 2025 estimated population of Adams and Jay Counties is 36,699 and 20,501, respectively. Estimated 2025 median household income is $78,036 for Mercer County and $64,654 for Darke County, compared to $66,990 statewide and $83,770 nationwide. Estimated 2025 median household income is $86,279 for Adams County and $53,600 for Jay County. The September 2025 unemployment rate for Mercer County was 3.6% and 3.8% for Darke County, compared to 4.9% statewide and 4.3% nationwide. The September 2024 unemployment rate for Mercer County was 3.1% and 3.8% for Darke County, compared to 4.5% statewide and 4.1% nationwide. The September 2025 unemployment rate for Adams County was 3.8% and 3.7% for Jay County, compared to 3.6% statewide and 4.3% nationwide. The September 2024 unemployment rate for Adams County was 3.5% and 3.8% for Jay County, compared to 4.3% statewide and 4.1% nationwide.

#### Competition
We face strong competition within our primary market area both in making loans and attracting retail deposits. Our market area includes large money center and regional banks, community banks and savings institutions, and credit unions. We also face competition for loans from mortgage banking firms, consumer finance companies, credit unions, and fintech companies and, with respect to deposits, from money market funds, brokerage firms, mutual funds and insurance companies. At June 30, 2025 (the most recent date for which FDIC data is publicly available), we were ranked fifth among the nine FDIC-insured financial institutions with offices in Mercer County, with a market share of deposits of 5.60%, and tenth among the eleven FDIC-insured financial institutions with offices in Darke County, with a market share of deposits of 1.58%.

#### Lending Activities
***General.*** Loans are our primary interest-earning asset. At September 30, 2025, net loans, excluding loans held for sale, represented 80.8% of our total assets. Our loan portfolio consists predominantly of residential mortgage loans secured by one- to four-family residential properties in our primary market area. At September 30, 2025, one- to four-family residential mortgages represented 54.7% of our total loan portfolio. We also have significant experience in

[**Table of Contents**](#TOC)

originating agricultural real estate loans secured by farmland. At September 30, 2025, agricultural real estate loans represented 32.2% of our total loan portfolio. To a lesser extent, we also originate multifamily real estate loans, commercial real estate loans, construction and land loans, home equity lines of credit, commercial and industrial loans, and consumer loans. In January 2023, we began implementing an indirect automobile lending program. At September 30, 2025, $4.1 million, or 2.8% of our total loan portfolio, consisted of indirect automobile loans held for investment and we had an additional $8.1 million of automobile loans held for sale.

***Loan Portfolio Composition.*** The following table sets forth the composition of our loan portfolio by type of loan at the dates indicated. Loan balances exclude loans held for sale, which totaled $8.1 million and $10.5 million at September 30, 2025 and September 30, 2024, respectively.

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  |
|  | **2025** | **2025** | **2024** | **2024** |
|  | **Amount** | **Percent** | **Amount** | **Percent** |
| Real estate loans: |  |  |  |  |
| &nbsp;&nbsp;Residential | $78774355 | 54.7% | $73285469 | 49.3% |
| &nbsp;&nbsp;Multifamily | 1204664 | 0.8 | 1259640 | 0.8 |
| &nbsp;&nbsp;Agricultural | 46317040 | 32.2 | 53523748 | 36.0 |
| &nbsp;&nbsp;Commercial | 2326429 | 1.6 | 2453082 | 1.6 |
| &nbsp;&nbsp;Construction and land | 4264994 | 3.0 | 6024429 | 4.1 |
| &nbsp;&nbsp;Home equity lines of credit | 4771614 | 3.3 | 4959058 | 3.3 |
| Commercial and industrial loans | 1233406 | 0.9 | 1666188 | 1.1 |
| Consumer loans | 5085548 | 3.5 | 5518844 | 3.7 |
| &nbsp;&nbsp;Total | 143978050 | 100.0% | 148690458 | 100.0% |
| Less: |  |  |  |  |
| &nbsp;&nbsp;Undisbursed loans in process | 415915 |  | 2309368 |  |
| &nbsp;&nbsp;Net deferred loan fees | 304570 |  | 339455 |  |
| &nbsp;&nbsp;Allowance for credit losses | 960307 |  | 963268 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Loans, net | $142297258 |  | $145078367 |  |

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***Contractual Maturities.*** The following tables set forth the contractual maturities of our total loan portfolio at September 30, 2025. Demand loans, loans having no stated repayment schedule or maturity, and overdraft loans are reported as being due in one year or less. The tables present contractual maturities and do not reflect repricing or the effect of prepayments. Actual maturities may differ.

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| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Real Estate** | **Real Estate** | **Real Estate** | **Real Estate** | **Real Estate** | **Real Estate** | | | |
|  | <br>**Residential** | <br>**Multifamily** | <br>**Agricultural** | <br>**Commercial**  | **Construction** <br>**and Land** | <br>**HELOC** | <br>**Commercial**<br>**Industrial** | <br>**Consumer**  | <br>**Total** |
| Due During the Years Ending September 30,  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2026 | $19975 | $— | $3229 | $— | $522052 | $60067 | $152909 | $58568 | $816800 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2027 to 2030 | 748848 |  | - | - | 21899 | 1075654 | 837174 | 3738789 | 6422364 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2031 to 2040 | 22430751 | 275095 | 3054252 | 408857 | 826597 | 2141337 | 243323 | 1288191 | 30668403 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2041 and beyond  | 55574781 | 929569 | 43259559 | 1917572 | 2894446 | 1494556 | - | - | 106070483 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Loans | $78774355 | $1204664 | $46317040 | $2326429 | $4264994 | $4771614 | $1233406 | $5085548 | $143978050 |

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The following table sets forth our fixed and adjustable-rate loans at September 30, 2025 that are contractually due after September 30, 2026.

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| | | | |
|:---|:---|:---|:---|
|  | **Due After September 30, 2026** | **Due After September 30, 2026** | **Due After September 30, 2026** |
|  | **Fixed** | **Adjustable** | **Total** |
| Real estate loans: |  |  |  |
| &nbsp;&nbsp;Residential | $37479857 | $41274523 | $78754380 |
| &nbsp;&nbsp;Multifamily | 1038624 | 166040 | 1204664 |
| &nbsp;&nbsp;Agricultural | 2618542 | 43695269 | 46313811 |
| &nbsp;&nbsp;Commercial | 328949 | 1997480 | 2326429 |
| &nbsp;&nbsp;Construction and land | 265265 | 3477677 | 3742942 |
| &nbsp;&nbsp;Home equity lines of credit (HELOC) |  | 4711547 | 4711547 |
| Commercial and industrial | 381616 | 698881 | 1080497 |
| Consumer  | 5026980 |  | 5026980 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $47139833 | $96021417 | $143161250 |

---

***Residential Mortgage Lending*.** At September 30, 2025, we had $78.8 million of loans secured by one- to four-family residential real estate, representing 54.7% of total loans. Our one- to four-family residential real estate loans are generally secured by owner-occupied properties located in our primary market area, for which we are generally in the first lien position.

Our one- to four-family residential real estate loans are generally underwritten to secondary market guidelines. We generally retain the one- to four-family residential real estate loans that we originate. However, in recent years, subject to market conditions and periodic review of our asset/liability management needs, we have determined to sell certain conforming, fixed-rate residential mortgages with longer terms upon origination, with servicing rights retained, to help limit our interest rate risk exposure and generate fee income. See "—Loan Originations, Purchases and Sales." We generally limit the loan-to-value ratios of our one- to four-family residential real estate loans to 80% of the purchase price or appraised value, whichever is lower. In addition, we may make one- to four-family residential real estate loans with loan-to-value ratios between 80% and 97% of the purchase price or appraised value, whichever is less, where the borrower obtains private mortgage insurance. We offer both fixed-rate and adjustable rate residential mortgage loans for terms up to 30 years, though one- to four-family residential real estate loans often remain outstanding for shorter periods than their contractual terms because borrowers have the right to refinance or prepay their loans.

We do not offer "interest only" residential mortgage loans, where the borrower pays interest for an initial period, after which the loan converts to a fully amortizing loan. We also do not offer loans that provide for negative amortization of principal, such as "Option ARM" loans, where the borrower can pay less than the interest owed on the loan, resulting in an increased principal balance during the life of the loan. We do not currently offer "subprime loans" on one- to four-family residential real estate loans (i.e., generally loans to borrowers with credit scores less than 620).

***Agricultural Real Estate Loans*.** At September 30, 2025, we had $46.3 million in agricultural real estate loans, representing 32.2% of total loans. These loans are generally secured by owner-occupied farmland located in our primary market area.

We offer both fixed-rate and adjustable rate loans for agricultural real estate. The interest rate on an adjustable rate loan will be fixed for an initial term and then adjusts yearly thereafter. We generally limit the loan-to-value ratios of our agricultural real estate loans to 80% of the purchase price or appraised value, whichever is lower.

We consider a number of factors in originating agricultural real estate loans. We evaluate the qualifications and financial condition of the borrower, including credit history, profitability and expertise, as well as the value and condition of the property securing the loan. When evaluating the qualifications of the borrower, we consider the financial resources of the borrower, the borrower's experience in agriculture and the borrower's payment history with us and other financial institutions. In evaluating the property securing the loan, the factors we consider include the net operating income of the mortgaged property before debt service and depreciation, the ratio of the loan amount to the appraised

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value of the mortgaged property, and the debt service coverage ratio (the ratio of net operating income to debt service). The significant majority of our agricultural real estate loans are appraised by outside independent appraisers approved by the board of directors. Personal guarantees are generally obtained from the principals of agricultural real estate borrowers. A Phase I environmental report is obtained when the possibility exists that hazardous materials may have existed on the site, or the site may have been impacted by adjoining properties that handled hazardous materials.

Loans secured by agricultural real estate and commercial real estate generally have larger balances and involve a greater degree of risk than one- to four-family residential real estate loans. The primary concern in agricultural and commercial real estate lending is the borrower's creditworthiness and the feasibility and cash flow potential of the underlying business. Payments on loans secured by income producing properties often depend on successful operation and management of the properties. As a result, repayment of such loans may be subject, to a greater extent than residential real estate loans, to adverse conditions in the real estate market or the economy. To monitor cash flows on income properties, we require borrowers and loan guarantors to provide annual financial statements, depending on the size of the loan.

If we foreclose on an agricultural real estate loan, the marketing and liquidation period to convert the real estate asset to cash can be lengthy with substantial holding costs. In addition, deferred maintenance, repairs and market stigma can result in prospective buyers expecting sale price concessions to offset their real or perceived economic losses for the time it takes them to return the property to profitability. Depending on the individual circumstances, initial charge-offs and subsequent losses on agricultural real estate loans can be unpredictable and substantial.

***Indirect Automobile and Other Consumer Loans*.** At September 30, 2025, consumer loans were $5.1 million, or 3.5% of total loans. Our consumer loans are primarily secured by motor vehicles. Consumer loans may have fixed or adjustable interest rates and terms up to seven years, depending on the type of collateral and creditworthiness of the borrower, with loan-to-value ratios up to 110%.

In January 2023, we began implementing an indirect automobile lending program, in which loan applications are referred to us by car dealerships, and intend to prudently grow this segment of our loan portfolio. Automobile loans generally have higher yields than one to-four family real estate loans and shorter maturities, which can help manage interest rate risk. In addition, management believes that offering consumer loan products helps to expand and create stronger ties to our existing customer base by increasing the number of customer relationships and providing cross-marketing opportunities. We also intend to pool and sell to investors some of the automobile loans that we originate to enhance fee income. No sales occurred during the years ended September 30, 2025 and 2024. Efforts to market indirect auto loan pools to investor banks are currently anticipated to begin in the second calendar quarter of 2026.

We originate indirect automobile loans from car dealerships located in western and southeastern Ohio and eastern Indiana under an arrangement where the dealer receives a fee for referring the loan to us. Each approved dealer submits credit applications directly to us. Dealerships are subject to financial, BBB, corporate and public records, and online business ratings reviews to determine the suitability of a dealership applying for approval to join the program, and each dealer must enter into a dealer agreement, which contains representations and warranties regarding our security interests in the financed vehicles, in order to participate in the program. We periodically review the quality of the loans we accept from dealerships and track individual dealership performance. In determining whether to accept a loan from a dealership, the borrower's creditworthiness is the most significant criterion, and we will consider factors such as the borrower's employment history, indebtedness, a credit report, and other factors that bear on creditworthiness.

Consumer loans are primarily secured by automobiles. Our indirect automobile loans have fixed interest rates and terms up to seven years, with loan-to-value ratios up to 110% in order to cover purchase expenses such as sales tax, dealer preparation fees, license fees and title fees in addition to the purchase price of the vehicle. A vehicle's value is determined by using one of the standard reference sources for dealers of used cars.

Generally, consumer loans have greater risk of loss or default than one- to four-family residential real estate loans. These loans are typically secured by automobiles, which depreciate rapidly in value. We face the risk that any collateral recovered for a defaulted loan may not provide an adequate source of repayment of the outstanding loan balance. As a result, consumer loan collections are dependent on the borrower's continuing financial stability and thus

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are more likely to be adversely affected by job loss, divorce, illness or personal bankruptcy. We will attempt to address collateral-related risks by lending primarily on new and late-model used vehicles. However, the application of various federal and state laws, including bankruptcy and insolvency laws, may also limit our ability to recover on such loans. Additionally, in originating indirect automobile loans, we rely on the dealerships in our network and assume the risk of unsatisfactory origination programs, including any noncompliance with federal, state and local laws. We also rely on the dealerships to ensure that our security interest in the financed vehicles is perfected.

***Construction and Land Loans.*** At September 30, 2025, we had $4.3 million in construction and land loans, representing 3.0% of our total loan portfolio. We make residential construction loans primarily to individuals for the construction of their primary residences and to contractors and builders of single-family homes. We generally do not make speculative residential construction loans, which are construction loans to a builder where there is not a contract in place for the purchase of the home at the time the construction loan is originated, although we may consider such loans. Our residential construction loans are underwritten to the same guidelines as permanent residential mortgage loans. We also make a limited amount of land loans to complement our construction lending activities, as such loans are generally secured by lots that will be used for residential development.

We may also make commercial construction loans, which are underwritten to the same guidelines as commercial mortgage loans. At September 30, 2025, we had commercial construction loans, primarily secured by agricultural real estate, with an aggregate balance of $965,000.

Our construction loans are based upon estimates of costs and values associated with the completed project. Underwriting is focused on the borrowers' financial strength, credit history and demonstrated ability to produce a quality product and effectively market and manage their operations. Before making a commitment to fund a construction loan, we require an appraisal of the property by an independent licensed appraiser. We also generally require inspections of the property before disbursements of funds during the term of the construction loan.

Construction lending involves additional risks when compared with permanent lending because funds are advanced upon the security of the project, which is of uncertain value before its completion. Because of the uncertainties inherent in estimating construction costs, as well as the market value of the completed project and the effects of governmental regulation of real property, it is relatively difficult to evaluate accurately the total funds required to complete a project and the related loan-to-value ratio. In addition, generally during the term of a construction loan, interest may be funded by the borrower or disbursed from an interest reserve set aside from the construction loan budget. These loans often involve the disbursement of substantial funds with repayment substantially dependent on the success of the ultimate project and the ability of the borrower to sell or lease the property or obtain permanent take-out financing, rather than the ability of the borrower or guarantor to repay principal and interest. If the appraised value of a completed project proves to be overstated, we may have inadequate security for the repayment of the loan upon completion of construction of the project and may incur a loss. Land loans have substantially similar risks.

***Multifamily and Commercial Real Estate Loans*.** Historically, we have not emphasized commercial real estate and multifamily lending, as our market area does not provide significant opportunities for the origination of these types of loans. At September 30, 2025, we had $1.2 million in multifamily real estate loans, representing 0.8% of our total loans, and $2.3 million in commercial real estate loans, representing 1.6% of total loans. Our multifamily real estate loans are generally secured by properties with five or more residential units located in our primary market area. Our commercial real estate loans are generally secured primarily by owner-occupied properties in our primary market area, including retail store fronts and a golf course.

Loans secured by multifamily and commercial real estate generally have larger balances and involve a greater degree of risk than one- to four-family residential real estate loans. The primary concern in multifamily and commercial real estate lending is the borrower's creditworthiness and the feasibility and cash flow potential of the underlying property and business. Payments on loans secured by income producing properties often depend on successful operation and management of the properties. As a result, repayment of such loans may be subject, to a greater extent than residential real estate loans, to adverse conditions in the real estate market or the economy. To monitor cash flows on income properties, we require borrowers and loan guarantors to provide annual financial statements, depending on the size of the loan.

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If we foreclose on a multifamily or commercial real estate loan, the marketing and liquidation period to convert the real estate asset to cash can be lengthy with substantial holding costs. In addition, vacancies, deferred maintenance, repairs and market stigma can result in prospective buyers expecting sale price concessions to offset their real or perceived economic losses for the time it takes them to return the property to profitability. Depending on the individual circumstances, initial charge-offs and subsequent losses on multifamily and commercial real estate loans can be unpredictable and substantial.

***Home Equity Lines of Credit.*** We offer home equity lines of credit, which are generally made for owner-occupied homes, and are secured by first or second mortgages on residences. At September 30, 2025, the outstanding balance of home equity lines of credit was $4.8 million, or 3.3% of total loans. The loan to value ratio is generally up to 90% if we have the first lien on the collateral property, or 80% if we do not. Our home equity loans and lines of credit are generally underwritten in the same manner as our one- to four-family residential loans.

Home equity lines of credit generally carry greater credit risk than one- to four family residential real estate loans secured by first mortgages. Our interest is generally subordinated to the interest of the institution holding the first mortgage. Even where we hold the first mortgage, we face the risk that the value of the collateral may not be sufficient to compensate us for the amount of the unpaid loan and costs of foreclosure and we may be unsuccessful in recovering the remaining balance from those customers.

***Commercial and Industrial Loans.*** Historically, we have not emphasized commercial business lending. At September 30, 2025, commercial and industrial loans were $1.2 million, or 0.9% of total loans. Our commercial and industrial loans include both term loans and lines of credit made with either fixed or adjustable interest rates. Depending on the collateral used to secure the loans, commercial loans are made in amounts of up to 70% of the value of the collateral securing the loan. At September 30, 2025, our commercial business loans also included a $382,000 participation in a pool of loans made to healthcare providers through Bankers Healthcare Group.

**Unlike residential real estate loans, which generally are made on the basis of the borrower's ability to make repayment from their employment or other income, and which are secured by real property whose value tends to be more easily ascertainable, commercial and industrial loans are of higher risk and typically are made on the basis of the borrower's ability to make repayment from the cash flows of the borrower's business, and the collateral securing these loans may fluctuate in value. Our commercial and industrial loans are originated primarily based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. Credit support provided by the borrower for most of these loans is based on the liquidation of the pledged collateral and enforcement of a personal guarantee, if any. Further, any collateral securing such loans may depreciate over time, may be difficult to appraise and may fluctuate in value. As a result, the availability of funds for the repayment of commercial and industrial loans may depend substantially on the success of the business itself.**

#### Loan Originations, Purchases and Sales
We originate loans through employee marketing and advertising efforts, our existing customer base, walk-in customers and referrals from customers. Additionally, our indirect automobile loans are generated from car dealerships in western and southeastern Ohio and eastern Indiana.

We generally retain the loans that we originate in our portfolio. However, in recent years, subject to market conditions and periodic review of our asset/liability management needs, we have determined to sell certain conforming, fixed-rate residential mortgages with longer terms to the Federal Home Loan Bank upon origination, with servicing rights retained, to help limit our interest rate risk exposure and generate fee income. Federal Home Loan Bank secondary market guidelines include limits as to loan amount, property type and size, and other parameters. We have generally been successful in selling selected conforming loans. We sold $1.9 million of residential loans held for sale and recognized gains on sale of loans of $26,924 during the year ended September 30, 2025. We did not originate any residential real estate loans for sale and did not sell any loans during the year ended September 30, 2024. Additionally, we began originating indirect automobile loans during 2023, and we intend to pool and sell to investors some of the automobile loans that we originate to enhance fee income. We did not sell any indirect automobile loans during the years

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ended September 30, 2025, and 2024. Loans held for sale were comprised solely of indirect auto loans. Efforts to market indirect auto loan pools to investor banks are currently anticipated to begin in the second calendar quarter of 2026.

We generally do not purchase loans, except for an occasional participation interest in a loan originated by another financial institution acting as the lead lender.

#### Loan Approval Procedures and Authority
Our lending is subject to written, non-discriminatory underwriting standards and origination procedures. Decisions on loan applications are made on the basis of detailed applications submitted by the prospective borrower and property valuations. Our policies require that for all real estate loans that we originate, property valuations must be performed by outside independent state-licensed appraisers approved by our board of directors. The loan applications are designed primarily to determine the borrower's ability to repay the requested loan, and the more significant items on the application are verified through use of credit reports, financial statements and tax returns.

By law, the aggregate amount of loans that we are permitted to make to any one borrower or a group of related borrowers is generally limited to 15% of Mercer Savings Bank's unimpaired capital and surplus. For us, this limit was $3.6 million as of September 30, 2025. Such limit may be increased to 25% if the amount in excess of 15% is secured by "readily marketable collateral" or 30% for certain residential development loans. At September 30, 2025, our largest credit relationship with one borrower consisted of 2 loans with an aggregate outstanding balance of $1.3 million, secured by farmland. At September 30, 2025, these loans were performing according to their original terms.

Designated loan officers may approve secured, consumer non-real estate loans up to $25,000. Loans up to $300,000 may be approved by our Senior Vice President of Operations and loans up to $500,000 may be approved by our Senior Vice President of Lending or President and Chief Executive Officer. Loans in excess of those amounts require the approval of three of the following individuals: the President and Chief Executive Officer, the Senior Vice President of Lending, the Senior Vice President of Operations, and any director.

Generally, we require property and extended coverage casualty insurance in amounts at least equal to the principal amount of the loan or the value of improvements on the property, depending on the type of loan. In addition, we require an escrow for flood insurance (where appropriate). For residential mortgage loans exceeding an 80% loan-to-value ratio, we require private mortgage insurance in amounts intended to reduce our exposure to 80% or less. A significant portion of our agricultural real estate loans are made to family farms within religious communities, which have formal self-insurance arrangements rather than traditional commercial insurance. Automobiles must be insured against loss or damage by fire, theft and collision.

#### Delinquencies, Classified Assets and Nonperforming Assets
***Delinquency Procedures.*** When a borrower fails to make a required monthly payment on a loan, we mail a notice to the borrower and attempt to contact the borrower by phone. All delinquent loans are reported to the board of directors each month. If a resolution has not been attained by 90 days, the collection department will review with management for a further plan of action. If payment reaches 120 days delinquent, the collector will report collection efforts and recommendations of litigation, etc. to the president. Our policies provide that a late notice be sent each month that the loan is past due. In addition, we may call the borrower when the loan is 15 days past due, and we attempt to cooperate with the borrower to determine the reason for nonpayment and to work with the borrower to establish a repayment schedule that will cure the delinquency. Once the loan is considered in default, generally at 90 days past due, a letter is generally sent to the borrower explaining that the entire balance of the loan is due and payable, the loan is placed on non-accrual status, and additional efforts are made to contact the borrower. If the borrower does not respond, we generally initiate foreclosure proceedings when the loan is 120 days past due. If the loan is reinstated, foreclosure proceedings will be discontinued and the borrower will be permitted to continue to make payments. In certain instances, we may modify the loan or grant a limited exemption from loan payments to allow the borrower to reorganize their financial affairs.

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When we acquire real estate as a result of foreclosure or by deed in lieu of foreclosure, the real estate is classified as other real estate owned until it is sold. The real estate is recorded at estimated fair value at the date of acquisition, less estimated costs to sell, and any write-down resulting from the acquisition is charged to the allowance for loan losses. Subsequent decreases in the value of the property are charged to operations. After acquisition, all costs in maintaining the property are expensed as incurred. Costs relating to the development and improvement of the property, however, are capitalized to the extent of estimated fair value less estimated costs to sell. At September 30, 2025 and 2024, we had no real estate acquired as a result of foreclosure or by deed in lieu of foreclosure.

***Modifications Made to Borrowers Experiencing Financial Difficulty.*** We occasionally modify loans to extend the term or make other concessions to help a borrower stay current on their loan and to avoid foreclosure. We consider modifications only after analyzing the borrower's current repayment capacity, evaluating the strength of any guarantors based on documented current financial information, and assessing the current value of any collateral pledged. We generally do not forgive principal or interest on loans, but may do so if it is in our best interest and increases the likelihood that we can collect the remaining principal balance. We may modify the terms of loans to lower interest rates (which may be at below market rates), to provide for fixed interest rates on loans where fixed rates are otherwise not available, to provide for longer amortization schedules, or to provide for interest-only terms. These modifications are made only when a workout plan has been agreed to by the borrower that we believe is reasonable and attainable and in our best interests. At September 30, 2025 and 2024, we had no loans modified for borrowers experiencing financial difficulties.

***Delinquent Loans***. The following table sets forth our loan delinquencies by type and amount at the dates indicated.

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  |
|  | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
|  | **30-59** <br>**Days** <br>**Past** <br>**Due** | **60-89** <br>**Days** <br>**Past** <br>**Due** | **90 Days** <br>**or More** <br>**Past** <br>**Due** | **30-59** <br>**Days** <br>**Past** <br>**Due** | **60-89** <br>**Days** <br>**Past** <br>**Due** | **90 Days** <br>**or More**<br>**Past** <br>**Due** |
| Real estate loans: |  |  |  |  |  |  |
| &nbsp;&nbsp;Residential | $575867 | $220713 | $581873 | $498008 | $184393 | $269206 |
| &nbsp;&nbsp;Multifamily |  |  |  |  |  |  |
| &nbsp;&nbsp;Agricultural |  | 156881 | 690990 |  |  |  |
| &nbsp;&nbsp;Commercial |  |  |  |  |  |  |
| &nbsp;&nbsp;Construction and land |  |  | 46695 |  |  | 50782 |
| &nbsp;&nbsp;Home equity lines of credit |  |  |  | 74969 |  |  |
| Commercial and industrial loans | 24814 |  |  | 3516 |  | 17431 |
| Consumer loans | 21247 |  | 29200 | 113123 |  | 48357 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $621928 | $377594 | $1348758 | $689616 | $184393 | $385776 |

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***Non-Performing Assets.*** The following table sets forth information regarding our non-performing assets. Non-performing assets include loans that are 90 or more days past due or on non-accrual status, including modifications to borrowers experiencing financial difficulty on non-accrual status, and real estate and other loan collateral acquired through foreclosure and repossession. We had no modifications to borrowers experiencing financial difficulty at September 30, 2025 or September 30, 2024. We had no loans in the process of foreclosure at September 30, 2025.

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| | | |
|:---|:---|:---|
|  | **At September 30,**  | **At September 30,**  |
|  | **2025** | **2024** |
| Non-performing loans: |  |  |
| Real estate loans: |  |  |
| &nbsp;&nbsp;Residential | $465441 | $269206 |
| &nbsp;&nbsp;Multifamily |  |  |
| &nbsp;&nbsp;Agricultural | 250092 |  |
| &nbsp;&nbsp;Commercial |  |  |
| &nbsp;&nbsp;Construction and land |  | 50782 |
| &nbsp;&nbsp;Home equity lines of credit |  |  |
| Commercial and industrial loans |  | 17431 |
| Consumer loans |  | 21841 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total non-performing loans | 715533 | 359260 |
| Loans past due greater than 90 days and accruing |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Residential | 116431 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Agricultural | 440598 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Construction and land | 46695 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Consumer loans | 29200 | 26516 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total greater than 90 days and still accruing | 632924 | 26516 |
| Foreclosed assets |  |  |
| Total non-performing assets | $1348457 | $385776 |
| Total non-performing loans to total loans | 0.94% | 0.26% |
| Total non- performing loans to total assets | 0.77% | 0.21% |
| Total non-performing assets to total assets | 0.77% | 0.21% |
| Total loans | 143978050 | 148690458 |
| Total assets | 176171657 | 181748216 |

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***Classified Assets***. Federal regulations provide that loans and other assets of lesser quality should be classified as "substandard," "doubtful" or "loss." An asset is considered "substandard" if it is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. "Substandard" assets include those characterized by the "distinct possibility" that the insured institution will sustain "some loss" if the deficiencies are not corrected. Assets classified as "doubtful" have all of the weaknesses inherent in those classified "substandard," with the added characteristic that the weaknesses present make "collection or liquidation in full," on the basis of currently existing facts, conditions, and values, "highly questionable and improbable." Assets classified as "loss" are those considered "uncollectible" and of such little value that their continuance as assets without the establishment of a specific allowance for credit losses is not warranted. Assets that do not currently expose the insured institution to sufficient risk to warrant classification in one of the aforementioned categories but possess weaknesses are designated as "special mention."

When an insured institution classifies problem assets as either substandard or doubtful, it may establish general allowances in an amount deemed prudent by management to cover losses that were both probable and reasonable to estimate. General allowances represent allowances which have been established to cover accrued losses associated with

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lending activities that were both probable and reasonable to estimate, but which, unlike specific allowances, have not been allocated to particular problem assets. When an insured institution classifies problem assets as "loss," it is required either to establish a specific allowance for losses equal to 100% of that portion of the asset so classified or to charge-off such amount. An institution's determination as to the classification of its assets and the amount of its valuation allowances is subject to review by the regulatory authorities, which may require the establishment of additional general or specific allowances.

In connection with the filing of our periodic regulatory reports and according to our classification of assets policy, we regularly review the problem loans in our portfolio to determine whether any loans require classification according to applicable regulations. If a problem loan deteriorates in asset quality, the classification is changed to "substandard," "doubtful" or "loss" depending on the circumstances and the evaluation. Generally, loans 90 days or more past due are placed on nonaccrual status and classified "substandard."

The table below sets forth our classified loans at the dates indicated.

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| | | |
|:---|:---|:---|
|  | **At September 30,**  | **At September 30,**  |
|  | **2025** | **2024** |
| Substandard loans | $715533 | $359260 |
| Doubtful loans |  |  |
| Loss loans |  |  |
| &nbsp;&nbsp;Total classified assets | $715533 | $359260 |
| Special mention assets | $— | $— |
| Foreclosed real estate |  |  |

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***Other Loans of Concern.*** At September 30, 2025, except for loans included in the above table, there were no other loans of concern for which we had information about possible credit problems of borrowers that caused us to have serious doubts about the ability of the borrowers to comply with present loan repayment terms and that may result in disclosure of such loans in the future.

#### Allowance for Credit Losses
The allowance for credit losses on loans represents management's estimate of lifetime credit losses on loans as of the reporting date. Management uses relevant available information, from both internal and external sources, related to historical experience, current conditions and reasonable and supportable forecasts. Expected credit losses are measured on a pool basis when similar risk characteristics exist by applying a loss rate based on historical data to each loan pool over the estimated remaining life of the loan pool. The loss rate is adjusted for qualitative risk factors that are likely to cause estimated credit losses to differ from historical experience, including adjustments for lending management experience and risk tolerance, loan review and audit results, asset quality and portfolio trends, loan portfolio growth, industry concentrations, trends in underlying collateral, external factors and other economic conditions. Loans that do not share risk characteristics are measured on an individual basis. When a borrower is experiencing financial difficulty and repayment is expected to be provided through the operation or sale of the collateral, the expected credit loss is based on the fair value of collateral at the reporting date, adjusted for costs to sell. The allowance is increased by a provision for credit losses, which is charged to expense and reduced by full and partial charge-offs, net of recoveries. Changes in the allowance relating to individually evaluated loans are charged or credited to the provision for credit losses.

A new credit loss accounting standard, the Current Expected Credit Loss standard ("CECL"), became effective for the Company on October 1, 2023. CECL requires the determination of periodic estimates of lifetime expected credit losses on financial instruments and recognize the expected credit losses as allowances for credit losses. CECL required us to change from the former method of providing allowances for loan losses that are incurred or probable, which requires us to greatly increase the types of data we need to collect and review to determine the appropriate level of the

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allowance for credit losses. The adoption of CECL required us to increase the allowance for credit losses on loans by $32,000 effective October 1, 2023.

As an integral part of their examination process, bank regulatory agencies periodically review the allowance for credit losses and may require an increase in the provision for credit losses or the recognition of loan charge-offs, based on judgments different than those of management.

The following table sets forth activity in our allowance for credit losses on loans for the periods indicated.

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| | | |
|:---|:---|:---|
|  | **At or For the Year** | **At or For the Year** |
|  | **Ended** | **Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Allowance for credit losses at beginning of period | $963268 | $934331 |
| Provision for credit losses | 66000 | 63000 |
| Charge-offs: |  |  |
| Real estate loans: |  |  |
| &nbsp;&nbsp;Residential |  |  |
| &nbsp;&nbsp;Multifamily |  |  |
| &nbsp;&nbsp;Agricultural |  |  |
| &nbsp;&nbsp;Commercial |  |  |
| &nbsp;&nbsp;Construction and land |  |  |
| &nbsp;&nbsp;Home equity lines of credit |  |  |
| Commercial and industrial loans |  |  |
| Consumer loans | (157188) | (66864) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total charge-offs | (157188) | (66864) |
| Recoveries: |  |  |
| Real estate loans: |  |  |
| &nbsp;&nbsp;Residential |  |  |
| &nbsp;&nbsp;Multifamily |  |  |
| &nbsp;&nbsp;Agricultural |  |  |
| &nbsp;&nbsp;Commercial |  |  |
| &nbsp;&nbsp;Construction and land |  |  |
| &nbsp;&nbsp;Home equity lines of credit |  |  |
| Commercial and industrial loans |  |  |
| Consumer loans | 88227 | 801 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total recoveries | 88227 | 801 |
| Net charge-offs | (68961) | (66063) |
| Effect of adoption of ASC 326 |  | 32000 |
| Allowance at end of period | $960307 | $963268 |
| Allowance for credit losses to total loans outstanding at end of period | 0.67% | 0.65% |
| Nonperforming loans to total loans outstanding at end of period | 0.50% | 0.26% |
| Allowance for credit losses to nonperforming loans at end of period | 134.21% | 249.70% |
| Net charge-offs to average loans outstanding during period | 0.01% | 0.05% |

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The following table sets forth additional information with respect to charge-offs by category for the periods indicated.

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| | | |
|:---|:---|:---|
|  | **For the Year Ended** | **For the Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Net charge-offs to average loans outstanding during the period: |  |  |
| &nbsp;&nbsp;Real estate loans: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Residential |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Multifamily |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Agricultural |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Commercial |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Construction and land |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Home equity lines of credit |  |  |
| &nbsp;&nbsp;Commercial and industrial loans |  |  |
| &nbsp;&nbsp;Consumer loans | 0.45% | 1.21% |

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***Allocation of Allowance for Credit Losses.*** The following table sets forth the allowance for credit losses allocated by loan category and the percent of the allowance in each category to the total allocated allowance at the dates indicated. The allowance for credit losses allocated to each category is not necessarily indicative of future losses in any particular category and does not restrict the use of the allowance to absorb losses in other categories.

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  |
|  | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
|  | <br>**Allowance**<br>**for Credit**<br>**Losses** | **Percent of**<br>**Allowance** <br>**in**<br>**Category**<br>**to**<br>**Total**<br>**Allowance** | <br>**Percent of** <br>**Loans in**<br>**Category**<br>**to**<br>**Total**<br>**Loans** | <br>**Allowance**<br>**for Credit**<br>**Losses** | <br>**Percent of** <br>**Allowance**<br>**in**<br>**Category**<br>**to Total**<br>**Allowance** | <br>**Percent of**<br>**Loans in**<br>**Category**<br>**to Total**<br>**Loans** |
| Real estate loans: |  |  |  |  |  |  |
| &nbsp;&nbsp;Residential | $745709 | 77.7% | 54.7% | $691852 | 71.8% | 49.3% |
| &nbsp;&nbsp;Multifamily | 2409 | 0.3 | 0.8 | 2525 | 0.3 | 0.8 |
| &nbsp;&nbsp;Agricultural | 92634 | 9.6 | 32.2 | 107284 | 11.1 | 36.0 |
| &nbsp;&nbsp;Commercial | 4653 | 0.5 | 1.6 | 4917 | 0.5 | 1.6 |
| &nbsp;&nbsp;Construction and land | 8530 | 0.9 | 3.0 | 92660 | 9.6 | 4.1 |
| &nbsp;&nbsp;Home equity lines of credit | 14315 | 1.6 | 3.3 | 14910 | 1.5 | 3.3 |
| Commercial and industrial loans | 2453 | 0.3 | 0.9 | 3314 | 0.3 | 1.1 |
| Consumer loans | 89604 | 9.3 | 3.5 | 45806 | 4.8 | 3.7 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total allowance on loans | 960307 | 100.0% | 100.0% | 963268 | 100.0% | 100.0% |
| Off Balance Sheet Commitments | 5000 |  |  | 5000 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $965307 |  |  | $968268 |  |  |

---

Although we believe that we use the best information available to establish the allowance for credit losses, future adjustments to the allowance for credit losses may be necessary and results of operations could be adversely affected if circumstances differ substantially from the assumptions used in making the determinations. Because future events affecting borrowers and collateral cannot be predicted with certainty, the existing allowance for credit losses may not be adequate and management may determine that increases in the allowance are necessary if the quality of any portion of our loan portfolio deteriorates as a result. Furthermore, as an integral part of its examination process, our regulators will periodically review our allowance for credit losses. Our regulators may have judgments different than those of management, and we may determine to increase our allowance as a result of these regulatory reviews. Any material increase in the allowance for credit losses may adversely affect our financial condition and results of operations.

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#### Investment Activities
***General*.** The goals of our investment policy are to maximize portfolio yield over the long term in a manner that is consistent with minimizing risk and to meet liquidity needs, satisfy pledging requirements, and support asset/liability management and interest rate risk strategies. Subject to loan demand and our interest rate risk analysis, we will increase the balance of our investment securities portfolio when we have excess liquidity.

Our investment policy was adopted by the board of directors and is reviewed annually by the board of directors. Our full board of directors serves as our investment committee. In this capacity the board develops and implements an asset/liability management plan, and reviews pricing and liquidity needs and assesses our interest rate risk. An investment schedule detailing the investment portfolio is reviewed at least quarterly by the board of directors.

Our current investment policy permits, with certain limitations, investments in U.S. Treasury securities; securities issued by the U.S. government and its agencies or government sponsored enterprises including mortgage-backed securities and collateralized mortgage obligations issued by Fannie Mae, Ginnie Mae, and Freddie Mac; corporate and municipal bonds; certificates of deposit in other financial institutions; and federal funds and money market funds, among other investments.

At September 30, 2025, our investment portfolio consisted of U.S. Government agency securities and mortgage backed securities issued by U.S. government-sponsored enterprises, and municipal securities. At September 30, 2025, we also owned $1.2 million of Federal Home Loan Bank of Cincinnati stock. As a member of Federal Home Loan Bank of Cincinnati, we are required to purchase stock in the Federal Home Loan Bank of Cincinnati, which is carried at cost and classified as a restricted investment.

The following table sets forth the maturities and weighted average yields of debt securities not carried at fair value through earnings as of September 30, 2025 and September 30, 2024. Weighted average yields are as of the period end. Tax-equivalent yield is presented for tax-exempt municipal securities.

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  |  |  | **More than One Year** | **More than One Year** | **More than Five Years** | **More than Five Years** |  |  |
|  | **One Year or Less** | **One Year or Less** | **to Five Years** | **to Five Years** | **to Ten Years** | **to Ten Years** | **More than Ten Years** | **More than Ten Years** |
|  | <br>**Amortized**<br>**Cost** | **Weighted**<br>**Average**<br>**Yield** | <br>**Amortized**<br>**Cost** | **Weighted**<br>**Average**<br>**Yield** | <br>**Amortized**<br>**Cost** | **Weighted**<br>**Average**<br>**Yield** | <br>**Amortized**<br>**Cost** | **Weighted**<br>**Average**<br>**Yield** |
| **September 30, 2025** |  |  |  |  |  |  |  |  |
| **Held-to-maturity:** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Mortgage-backed GSEs | $2034 | 2.41% | $12849 | 3.27% | $— | —% | $52840 | 5.41% |
| **Available-for-sale:** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;U.S. Government Agencies | $1000000 | 3.00% | $1000000 | 3.93% | $476121 | 5.16% | $— | —% |
| &nbsp;&nbsp;Mortgage-backed GSEs |  | —% | 74276 | 1.96% | 810646 | 2.02% | 3099752 | 3.17% |
| &nbsp;&nbsp;State and political subdivisions |  | —%  |  | —%  | 856823 | 2.26%  | 2831971 | 2.97% |
|  | 1000000 | 3.00%  | 1074276 | 3.79%  | 2143590 | 2.85%  | 5931723 | 3.07% |
| **September 30, 2024** |  |  |  |  |  |  |  |  |
| **Held-to-maturity:** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Mortgage-backed GSEs | $— | 0.00% | $10838 | 2.26% | $18175 | 3.20% | $63828 | 5.56% |
| **Available-for-sale:** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;U.S. Government Agencies | 1000288 | 0.28% | 2000000 | 3.44% | 473171 | 5.16% |  | —% |
| &nbsp;&nbsp;Mortgage-backed GSEs |  | —% | 118948 | 1.98% |  | —% | 4516927 | 1.88% |
| &nbsp;&nbsp;State and political subdivisions |  | —%  |  | —%  |  | —%  | 3421238 | 3.07% |
|  | 1000288 | 0.28%  | 2118948 | 3.36%  | 473171 | 5.16%  | 7938165 | 3.05% |

---

The weighted-average yields were calculated by multiplying each amortized cost by its yield and dividing the sum of these results by the total amortized cost values. Yields on tax-exempt investments are calculated on a fully tax equivalent basis.

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For additional information regarding our investment securities portfolio, see Note 4 of the notes to financial statements beginning on page F-1 of this Annual Report on Form 10-K.

#### Sources of Funds
***General.*** Deposits have traditionally been our primary source of funds for use in lending and investment activities. We may also use borrowings to supplement cash flow needs, lengthen the maturities of liabilities for interest rate risk purposes and to manage the cost of funds. In addition, we receive funds from scheduled loan payments, investment maturities, loan prepayments, retained earnings and income on earning assets. While scheduled loan payments and income on earning assets are relatively stable sources of funds, deposit inflows and outflows can vary widely and are influenced by prevailing interest rates, market conditions and levels of competition.

***Deposits.*** Our deposits are generated primarily from our primary market area. We offer a selection of deposit accounts, including savings accounts, checking accounts, certificates of deposit and individual retirement accounts. Deposit account terms vary, with the principal differences being the minimum balance required, the amount of time the funds must remain on deposit and the interest rate.

Interest rates paid, maturity terms, service fees and withdrawal penalties are established on a periodic basis. Deposit rates and terms are based primarily on current operating strategies and market rates, liquidity requirements, rates paid by competitors and growth goals. We rely upon personalized customer service, long-standing relationships with customers, and our favorable reputation in the community to attract and retain local deposits. We also seek to obtain deposits from our commercial loan customers.

The flow of deposits is influenced significantly by general economic conditions, changes in money market and other prevailing interest rates and competition. The variety of deposit accounts offered allows us to be competitive in obtaining funds and responding to changes in consumer demand. Based on experience, we believe that our deposits are relatively stable. However, the ability to attract and maintain deposits and the rates paid on these deposits, has been and will continue to be significantly affected by market conditions.

The following table sets forth the distribution of average total deposits by account type at the dates indicated.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  | **At September 30,**  |
|  | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
|  | <br>**Amount** | <br>**Percent** | **Average** <br>**Rate** | <br>**Amount** | <br>**Percent** | **Average** <br>**Rate** |
|  | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** |
| Noninterest-bearing demand deposits | $14930 | 10.8% | 0.00% | $14282 | 10.9% | 0.00% |
| Interest-bearing demand deposits | 30116 | 21.8 | 0.03 | 38215 | 29.3 | 0.03 |
| Savings deposits | 48598 | 35.2 | 0.71 | 38257 | 29.3 | 0.62 |
| Certificates of deposit | 44476 | 32.2 | 3.46 | 39714 | 30.4 | 3.74  |
| Total | $138120 | 100.00% | 1.33% | $130468 | 100.00% | 1.33% |

---

We consider our core deposits to include savings accounts, money market accounts, other savings deposits and checking accounts. Core deposits totaled $93.7 million, or 65.1% of total deposits, at September 30, 2025.

As of September 30, 2025 and September 30, 2024, the aggregate amount of uninsured deposits (deposits in amounts greater than $250,000, which is the maximum amount for federal deposit insurance), was $27.9 million and $25.0 million, respectively. In addition, as of September 30, 2025, the aggregate amount of all our uninsured certificates

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of deposit was $738,000. We have no deposits that are uninsured for any reason other than being in excess of the maximum amount for federal deposit insurance.

The following table sets forth our uninsured time deposits at September 30, 2025 by time remaining until maturity.

---

| | |
|:---|:---|
|  | **At September 30, 2025** |
|  | **(In thousands)** |
| **Maturity Period:** |  |
| &nbsp;&nbsp;Three months or less | $195 |
| &nbsp;&nbsp;Over three through six months | 386 |
| &nbsp;&nbsp;Over six through twelve months | 73 |
| &nbsp;&nbsp;Over twelve months | 84 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $738 |

---

***Borrowings.*** We may obtain advances from the Federal Home Loan Bank of Cincinnati upon the security of our capital stock in it and our one- to four-family residential real estate portfolio. We may utilize these advances for asset/liability management purposes and for additional funding for our operations. Such advances may be made under several different credit programs, each of which has its own interest rate and range of maturities. At September 30, 2025, we had $6.0 million in outstanding advances from the Federal Home Loan Bank of Cincinnati. At September 30, 2025, based on available collateral and our ownership of Federal Home Loan Bank of Cincinnati common stock, we had access to up to $41.3 million of advances from the Federal Home Loan Bank of Cincinnati. At September 30, 2025, the Bank had a cash management line of credit agreement with the Federal Home Loan Bank providing for additional borrowing capacity of $11.0 million. The Bank had $2.0 million drawn on this line at September 30, 2025. This additional borrowing is considered a cash management advance and is included in the total outstanding advance amount of $6 million.

**Regulation and Supervision**

**General**

As an Ohio state-chartered bank, Mercer Savings Bank is subject to examination and regulation by the ODFI, as its chartering authority, and is also subject to examination by the FDIC, its primary federal regulator and deposit insurer. This regulation and supervision establishes a comprehensive framework of activities in which an institution may engage and is intended primarily for the protection of the FDIC's deposit insurance fund and depositors, and not for the protection of security holders. The Bank also is a member of and owns stock in the Federal Home Loan Bank of Cincinnati, which is one of the 11 regional banks in the Federal Home Loan Bank System.

Under this system of regulation, the regulatory authorities have extensive discretion in connection with their supervisory, enforcement, rulemaking and examination activities and policies, including rules or policies that: establish minimum capital levels; restrict the timing and amount of dividend payments; govern the classification of assets; determine the adequacy of loan loss reserves for regulatory purposes; and establish the timing and amounts of assessments and fees. Moreover, as part of their examination authority, the banking regulators assign numerical ratings to banks and savings institutions relating to capital, asset quality, management, liquidity, earnings and other factors. The receipt of a less than satisfactory rating in one or more categories may result in enforcement action by the banking regulators against a financial institution. A less than satisfactory rating may also prevent a financial institution, such as the Bank or the Company, from obtaining necessary regulatory approvals to access the capital markets, pay dividends, acquire other financial institutions or establish new branches.

In addition, the Bank must comply with significant anti-money laundering and anti-terrorism laws and regulations, Community Reinvestment Act laws and regulations, and fair lending laws and regulations. Government agencies have the authority to impose monetary penalties and other sanctions on institutions that fail to comply with these laws and regulations, which could significantly affect our business activities, including our ability to acquire other financial institutions or expand our branch network.

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Mercer Bancorp is a bank holding company and is required to comply with the rules and regulations of the Federal Reserve Board. The Company is required to file certain reports with the Federal Reserve Board and is subject to examination by the enforcement authority of the Federal Reserve Board. The Company is also subject to the rules and regulations of the Securities and Exchange Commission under the federal securities laws.

Any change in applicable laws or regulations, whether by the ODFI, the FDIC, the Federal Reserve Board or Congress, could have a material adverse impact on the operations and financial performance of the Company and the Bank.

Set forth below is a brief description of material regulatory requirements that are applicable to the Bank and the Company. The description is limited to certain material aspects of the statutes and regulations addressed, and is not intended to be a complete description of such statutes and regulations and their effects on the Bank and the Company.

**Ohio Bank Regulation**

Mercer Savings Bank is an Ohio state-chartered bank. Ohio banking law governs the powers, rights and privileges of state-chartered banks, including limitations on the nature and amount of loans and investments the bank may make and other aspects of banking operations. Under current Ohio law, we may open branch offices throughout Ohio with the prior approval of the ODFI. In addition, with prior regulatory approval or non-objection, we may acquire branches of existing banks located in Ohio. Additionally, under the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (the "Dodd-Frank Act"), with prior regulatory approval or non-objection, we and any other state-chartered bank or national bank may establish a de novo branch in any other state.

Ohio banking law also governs the payment of dividends to stockholders. As a holding company and the sole stockholder of the Bank, the Company is a separate and distinct legal entity from the Bank and does not intend to have significant operations beyond holding the outstanding common stock of the Bank. Accordingly, the Company may rely on dividends from the Bank for a substantial portion of its revenue. Without approval from the ODFI, the Bank will be permitted to fund any cash dividends only from undivided profits, after having made all required allocations to reserves for losses or contingencies. ODFI approval will be required for any dividends funded from surplus or if the total of all cash dividends declared in any year exceeds the total of its net income for that year combined with its retained net income of the preceding two years.

As an Ohio state-chartered bank, the Bank is subject to supervision, regulation and periodic examination by the ODFI. These examinations are designed primarily for the protection of the depositors of the Bank and not shareholders.

**Federal Banking Regulation** 

***Capital Requirements***. Federal regulations require FDIC-insured depository institutions to meet several minimum capital standards: a common equity Tier 1 capital to risk-based assets ratio of 4.5%, a Tier 1 capital to risk-based assets ratio of 6.0%, a total capital to risk-based assets of 8.0%, and a 4.0% Tier 1 capital to total assets leverage ratio. The existing capital requirements were effective January 1, 2015 and are the result of a final rule implementing regulatory amendments based on recommendations of the Basel Committee on Banking Supervision and certain requirements of the Dodd-Frank Act.

Common equity Tier 1 capital is generally defined as common stockholders' equity and retained earnings. Tier 1 capital is generally defined as common equity Tier 1 and additional Tier 1 capital. Additional Tier 1 capital includes certain noncumulative perpetual preferred stock and related surplus and minority interests in equity accounts of consolidated subsidiaries. Total capital includes Tier 1 capital (common equity Tier 1 capital plus additional Tier 1 capital) and Tier 2 capital. Tier 2 capital is comprised of capital instruments and related surplus, meeting specified requirements, and may include cumulative preferred stock and long-term perpetual preferred stock, mandatory convertible securities, intermediate preferred stock and subordinated debt. Also included in Tier 2 capital is the allowance for credit losses limited to a maximum of 1.25% of risk-weighted assets and, for institutions that have exercised an opt-out election regarding the treatment of Accumulated Other Comprehensive Income ("AOCI"), up to 45% of net unrealized gains on available-for-sale equity securities with readily determinable fair market values.

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Institutions that have not exercised the AOCI opt-out have AOCI incorporated into common equity Tier 1 capital (including unrealized gains and losses on available-for-sale-securities). The Bank exercised its AOCI opt-out election. Calculation of all types of regulatory capital is subject to deductions and adjustments specified in the regulations.

In determining the amount of risk-weighted assets for purposes of calculating risk-based capital ratios, all assets, including certain off-balance sheet assets (e.g., recourse obligations, direct credit substitutes, residual interests) are multiplied by a risk weight factor assigned by the regulations based on the risks believed inherent in the type of asset. Higher levels of capital are required for asset categories believed to present greater risk. For example, a risk weight of 0% is assigned to cash and U.S. government securities, a risk weight of 50% is generally assigned to prudently underwritten first lien one- to four-family residential real estate loans, a risk weight of 100% is assigned to commercial and consumer loans, a risk weight of 150% is assigned to certain past due loans and a risk weight of between 0% to 600% is assigned to permissible equity interests, depending on certain specified factors.

In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a "capital conservation buffer" consisting of 2.5% of common equity Tier 1 capital to risk-weighted asset above the amount necessary to meet its minimum risk-based capital requirements.

In assessing an institution's capital adequacy, the FDIC takes into consideration, not only these numeric factors, but qualitative factors as well, including the bank's exposure to interest rate risk. The FDIC has the authority to establish higher capital requirements for individual institutions where deemed necessary due to a determination that an institution's capital level is, or is likely to become, inadequate in light of particular circumstances.

The Economic Growth, Regulatory Relief and Consumer Protection Act required the federal banking agencies, including the FDIC, to establish for institutions with assets of less than $10 billion a "Community Bank Leverage Ratio" of between 8 to 10%. Institutions with capital meeting or exceeding the ratio and otherwise complying with the specified requirements (including off-balance sheet exposures of 25% or less of total assets and trading assets and liabilities of 5% or less of total assets) and electing the alternative framework are considered to comply with the applicable regulatory capital requirements.

The Community Bank Leverage Ratio was established at 9% Tier 1 capital to total average assets, effective January 1, 2020. A qualifying institution may opt in and out of the community bank leverage ratio framework on its quarterly call report. An institution that temporarily ceases to meet any qualifying criteria is provided a two-quarter grace period to again achieve compliance. Failure to meet the qualifying criteria within the grace period or maintain a leverage ratio of 8% or greater requires the institution to comply with the generally applicable capital requirements. The Bank did not elect to use the Community Bank Leverage Ratio.

***Standards for Safety and Soundness.*** As required by statute, the federal banking agencies adopted final regulations and Interagency Guidelines Establishing Standards for Safety and Soundness to implement safety and soundness standards. The guidelines set forth the safety and soundness standards that the federal banking agencies use to identify and address problems at insured depository institutions before capital becomes impaired. The guidelines address internal controls and information systems, internal audit systems, credit underwriting, loan documentation, interest rate exposure, asset growth, asset quality, earnings and compensation, fees and benefits. The agencies have also established standards for safeguarding customer information. If the appropriate federal banking agency determines that an institution fails to meet any standard prescribed by the guidelines, the agency may require the institution to submit to the agency an acceptable plan to achieve compliance with the standard.

***Business and Investment Activities.*** All state-chartered FDIC-insured banks are generally limited in their equity investment activities to equity investments of the type and in the amount authorized for national banks, notwithstanding state law, subject to certain exceptions. In addition, a state bank may engage in state-authorized activities or investments not permissible for national banks (other than non-subsidiary equity investments) if it meets all applicable capital requirements and it is determined by the FDIC that such activities or investments do not pose a significant risk to the Deposit Insurance Fund.

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***Interstate Banking and Branching.*** Federal law permits well capitalized and well managed holding companies to acquire banks in any state, subject to Federal Reserve Board approval, certain concentration limits and other specified conditions. Interstate mergers of banks are also authorized, subject to regulatory approval and other specified conditions. In addition, among other things, amendments made by the Dodd-Frank Act permit banks to establish de novo branches on an interstate basis provided that branching is authorized by the law of the host state for the banks chartered by that state.

***Prompt Corrective Regulatory Action.*** Federal bank regulatory authorities are required to take "prompt corrective action" with respect to institutions that do not meet minimum capital requirements. For these purposes, the statute establishes five capital categories: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized. Under the regulations, a bank is deemed to be: (i) "well capitalized" if it has a total risk-based capital ratio of 10.0% or more, has a Tier 1 risk-based capital ratio of 8.0% or more, has a Tier 1 leverage capital ratio of 5.0% or more and a common equity Tier 1 ratio of 6.5% or more, and is not subject to any written capital order or directive; (ii) "adequately capitalized" if it has a total risk-based capital ratio of 8.0% or more, a Tier 1 risk-based capital ratio of 6.0% or more, a Tier 1 leveraged capital ratio of 4.0% or more and a common equity Tier 1 ratio of 4.5% or more, and does not meet the definition of "well capitalized"; (iii) "undercapitalized" if it has a total risk-based capital ratio that is less than 8.0%, a Tier 1 risk-based capital ratio that is less than 6.0%, a Tier 1 leverage capital ratio that is less than 4.0% or a common equity Tier 1 ratio of less than 4.5%; (iv) "significantly undercapitalized" if it has a total risk-based capital ratio that is less than 6.0% and a Tier 1 risk-based capital ratio that is less than 4.0% or a common equity Tier 1 ratio of less than 3.0%; or (v) "critically undercapitalized" if it has a ratio of tangible equity to total assets that is equal to or less than 2.0%.

The Bank was considered "well capitalized" for regulatory capital purposes as of September 30, 2025.

Federal law and regulations also specify circumstances under which a federal banking agency may reclassify a well-capitalized institution as adequately capitalized and may require an institution classified as less than well capitalized to comply with supervisory actions as if it were in the next lower category (except that the FDIC may not reclassify a significantly undercapitalized institution as critically undercapitalized).

The FDIC may order banks that have insufficient capital to take corrective actions. For example, a bank that is categorized as "undercapitalized" is subject to growth limitations and is required to submit a capital restoration plan, and a holding company that controls such a bank is required to guarantee that the bank complies with the restoration plan. A "significantly undercapitalized" bank may be subject to additional restrictions. Banks deemed by the FDIC to be "critically undercapitalized" would be subject to the appointment of a receiver or conservator.

***Transactions with Affiliates and Loans to Insiders.*** Transactions between banks and their affiliates are governed by federal law. An affiliate of a bank is any company or entity that controls, is controlled by or is under common control with the bank. In a holding company context, the parent bank holding company and any companies which are controlled by such parent holding company are affiliates of the bank (although subsidiaries of the bank itself, except financial subsidiaries, are generally not considered affiliates). Generally, Section 23A of the Federal Reserve Act and the Federal Reserve Board's Regulation W limit the extent to which a bank or its subsidiaries may engage in "covered transactions" with any one affiliate to an amount equal to 10.0% of such institution's capital stock and surplus, and with all such transactions with all affiliates to an amount equal to 20.0% of such institution's capital stock and surplus. Section 23B applies to "covered transactions" as well as to certain other transactions and requires that all such transactions be on terms substantially the same, or at least as favorable, to the institution or subsidiary as those provided to a non-affiliate. The term "covered transaction" includes the making of loans to, purchase of assets from, and issuance of a guarantee to an affiliate, and other similar transactions. Section 23B transactions also include the provision of services and the sale of assets by a bank to an affiliate. In addition, loans or other extensions of credit by the financial institution to the affiliate are required to be collateralized in accordance with the requirements set forth in Section 23A of the Federal Reserve Act.

Sections 22(h) and (g) of the Federal Reserve Act place restrictions on loans to a bank's insiders, i.e., executive officers, directors and principal stockholders. Under Section 22(h) of the Federal Reserve Act, loans to a director, an executive officer and to a greater than 10.0% stockholder of a financial institution, and certain affiliated interests of these

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persons, together with all other outstanding loans to such person and affiliated interests, may not exceed specified limits. Section 22(h) of the Federal Reserve Act also requires that loans to directors, executive officers and principal stockholders be made on terms substantially the same as offered in comparable transactions to other persons and also requires prior board approval for certain loans. In addition, the aggregate amount of extensions of credit by a financial institution to insiders cannot exceed the institution's unimpaired capital and surplus. Section 22(g) of the Federal Reserve Act places additional restrictions on loans to executive officers.

***Enforcement.*** The FDIC has extensive enforcement authority over insured state banks, including the Bank. The enforcement authority includes, among other things, the ability to assess civil money penalties, issue cease and desist orders and remove directors and officers. In general, these enforcement actions may be initiated in response to violations of laws and regulations, breaches of fiduciary duty and unsafe or unsound practices.

***Federal Insurance of Deposit Accounts.*** The Bank is a member of the Deposit Insurance Fund, which is administered by the FDIC. The Bank's deposit accounts are insured by the FDIC, generally up to a maximum of $250,000 per depositor.

The FDIC imposes deposit insurance assessments against all insured depository institutions. An institution's assessment rate depends upon the perceived risk of the institution to the Deposit Insurance Fund, with institutions deemed less risky paying lower rates. Currently, assessments for institutions of less than $10 billion of total assets are based on financial measures and supervisory ratings derived from statistical models estimating the probability of failure within three years. Assessment rates (inclusive of possible adjustments) for institutions of the Bank's size ranged from 1.5 to 30 basis points of each institution's total assets less tangible capital through December 31, 2023. The FDIC adopted a final rule in October 2023 to increase initial base deposit insurance assessment rates by two basis points beginning in the first quarterly assessment period of 2023. As a result, effective January 1, 2023, assessment rates for institutions of the Bank's size currently range from 2.5 to 32 basis points. The FDIC may increase or decrease the range of assessments uniformly, except that no adjustment can deviate more than two basis points from the base assessment rate without notice and comment rulemaking.

A significant increase in insurance premiums would have an adverse effect on the operating expenses and results of operations of the Bank. We cannot predict what deposit insurance assessment rates will be in the future.

Insurance of deposits may be terminated by the FDIC upon a finding that an institution has engaged in unsafe or unsound practices, is in an unsafe or unsound condition to continue operations or has violated any applicable law, regulation, rule, order or condition imposed by the FDIC. We do not know of any practice, condition or violation that might lead to termination of deposit insurance at the Bank.

***Privacy Regulations and Cybersecurity.*** Federal regulations generally require that the Bank disclose its privacy policy, including identifying with whom it shares a customer's "non-public personal information," to customers at the time of establishing the customer relationship and annually thereafter. In addition, the Bank is required to provide its customers with the ability to "opt-out" of having their personal information shared with unaffiliated third parties and not to disclose account numbers or access codes to non-affiliated third parties for marketing purposes. The Bank currently has a privacy protection policy in place and believes that such policy is in compliance with the regulations.

In November 2021, the federal bank regulatory agencies issued a final rule requiring banking organizations to notify their primary federal regulator as soon as possible and no later than 36 hours of determining that a "computer-security incident" that rises to the level of a "notification incident," as those terms are defined in the final rule, has occurred. A notification incident is a "computer-security incident" that has materially disrupted or degraded, or is reasonably likely to materially disrupt or degrade, the banking organization's ability to deliver services to a material portion of its customer base, jeopardize the viability of key operations of the banking organization, or impact the stability of the financial sector. The final rule also requires bank service providers to notify any affected bank to or on behalf of which the service provider provides services "as soon as possible" after determining that it has experienced an incident that materially disrupts or degrades, or is reasonably likely to materially disrupt or degrade, covered services provided to such bank for four or more hours.

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***Community Reinvestment Act.*** Under the Community Reinvestment Act, or CRA, as implemented by federal regulations, a state member bank has a continuing and affirmative obligation, consistent with its safe and sound operation, to help meet the credit needs of its entire community, including low and moderate income neighborhoods. The CRA does not establish specific lending requirements or programs for financial institutions nor does it limit an institution's discretion to develop the types of products and services that it believes are best suited to its particular community, consistent with the CRA. The CRA requires the FDIC, in connection with its examination of a state bank, to assess the institution's record of meeting the credit needs of its community and to take such record into account in its evaluation of certain applications by such institution, including applications to acquire branches and other financial institutions. The CRA requires a written evaluation of an institution's CRA performance utilizing a four-tiered descriptive rating system. The Bank's latest federal CRA rating was "Satisfactory."

On October 24, 2023, the federal banking agencies jointly issued a final rule to revise the regulations implementing the CRA. Under the final rule, banks with total assets of less than $600 million as of December 31 in either of the prior two calendar years, such as the Bank, have the option to maintain the current CRA evaluation framework, referred to in the final rule as the "Small Bank Lending Test," or opt into a new "Retail Lending Test." The applicability date for the majority of the provisions in the CRA regulations is January 1, 2026, and additional requirements will be applicable on January 1, 2027. The new CRA regulations have been subject to litigation. On July 16, 2025, the agencies issued a joint notice of proposed rulemaking to rescind the CRA final rule issued in October 2023 and reinstate the CRA framework that existed prior to the October 2023 final rule.

***USA Patriot Act.*** Mercer Savings Bank is subject to the USA PATRIOT Act, which gives federal agencies additional powers to address terrorist threats through enhanced domestic security measures, expanded surveillance powers, increased information sharing, and broadened anti-money laundering requirements. The USA PATRIOT Act contains provisions intended to encourage information sharing among bank regulatory agencies and law enforcement bodies. Further, certain provisions impose affirmative obligations on a broad range of financial institutions, including banks, thrifts, brokers, dealers, credit unions, money transfer agents, and parties registered under the Commodity Exchange Act.

**Other Regulations** 

Interest and other charges collected or contracted for by the Bank are subject to state usury laws and federal laws concerning interest rates. Loan operations are also subject to state and federal laws applicable to credit transactions, such as the:

● Truth in Lending Act, governing the disclosures of credit terms to consumer borrowers;

● Real Estate Settlement Procedures Act, requiring that borrowers for mortgage loans for one-to-four family residential real estate receive various disclosures, including good faith estimates of settlement costs, lender servicing and escrow account practices, and prohibiting certain practices that increase the cost of settlement services;

● Home Mortgage Disclosure Act of 1975, requiring financial institutions to provide information to enable the public and public officials to determine whether a financial institution is fulfilling its obligation to help meet the housing needs of the community it serves;

● Equal Credit Opportunity Act, prohibiting discrimination on the basis of race, creed or other prohibited factors in extending credit;

● Fair Credit Reporting Act of 1978, governing the use and provision of information to credit reporting agencies;

● Fair Debt Collection Practices Act, governing the manner in which consumer debts may be collected by collection agencies;

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● Truth in Savings Act; and

● Rules and regulations of the various federal and state agencies charged with the responsibility of implementing such federal and state laws.

The deposit operations of the Bank also are subject to, among others, the:

● Right to Financial Privacy Act, which imposes a duty to maintain confidentiality of consumer financial records and prescribes procedures for complying with administrative subpoenas of financial records;

● Check Clearing for the 21st Century Act (also known as "Check 21"), which gives "substitute checks," such as digital check images and copies made from that image, the same legal standing as the original paper check; and

● Electronic Funds Transfer Act and Regulation E promulgated thereunder, which govern automatic deposits to and withdrawals from deposit accounts and customers' rights and liabilities arising from the use of automated teller machines and other electronic banking services.

Consumer protection and fair lending statutes and regulations provide for a range of sanctions for non-compliance with their terms, including imposition of administrative fines and remedial orders, restrictions on business and growth activities, and referral to the Department of Justice for prosecution for actual and punitive damages and injunctive relief. Federal laws also prohibit unfair, deceptive or abusive acts or practices against consumers, which can be enforced by the Consumer Financial Protection Bureau, the FDIC and state Attorneys General. Private parties may also have the ability to challenge an institution's performance under fair lending laws in private class action litigation.

**Federal Home Loan Bank System** 

The Bank is a member of the Federal Home Loan Bank of Cincinnati, which is one of 11 regional Federal Home Loan Banks in the Federal Home Loan Bank System. The Federal Home Loan Bank of Cincinnati provides a central credit facility primarily for its member institutions. Members of the Federal Home Loan Bank of Cincinnati are required to acquire and hold shares of capital stock in the Federal Home Loan Bank of Cincinnati. The Bank complied with this requirement at September 30, 2025. Based on redemption provisions of the Federal Home Loan Bank of Cincinnati, the stock has no quoted market value and is carried at cost. The Bank reviews for impairment, based on the ultimate recoverability, the cost basis of the Federal Home Loan Bank of Cincinnati stock. At September 30, 2025, no impairment has been recognized.

**Holding Company Regulation** 

***General*.** The Company is a bank holding company within the meaning of the Bank Holding Company of 1956. As such, the Company is registered with the Federal Reserve Board and is subject to the regulation, examination, supervision and reporting requirements applicable to bank holding companies under the Bank Holding Company Act of 1956, as amended (the "Bank Holding Company Act"), as administered by the Federal Reserve Board. In addition, the Federal Reserve Board has enforcement authority over the Company and its non-savings institution subsidiaries. Among other things, this authority permits the Federal Reserve Board to restrict or prohibit activities that are determined to be a serious risk to the subsidiary savings institution.

***Permissible Activities.*** A bank holding company is generally prohibited from engaging in non-banking activities, or acquiring direct or indirect control of more than 5% of the voting securities of any company engaged in non-banking activities. One of the principal exceptions to this prohibition is for activities found by the Federal Reserve Board to be so closely related to banking or managing or controlling banks as to be a proper incident thereto. Some of the principal activities that the Federal Reserve Board has determined by regulation to be so closely related to banking are: (i) making or servicing loans; (ii) performing certain data processing services; (iii) providing discount brokerage services; (iv) acting as fiduciary, investment or financial advisor; (v) leasing personal or real property; (vi) making

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investments in corporations or projects designed primarily to promote community welfare; and (vii) acquiring a savings and loan association whose direct and indirect activities are limited to those permitted for bank holding companies.

A bank holding company that meets specified conditions, including being "well capitalized" and "well managed," may opt to become a "financial holding company" and thereby engage in a broader array of financial activities than permitted for a typical bank holding company. Such activities can include insurance underwriting and investment banking. Mercer Bancorp has not elected "financial holding company" status.

***Capital.*** Bank holding companies with $3.0 billion or more in total consolidated assets are subject to consolidated regulatory capital requirements identical to those applicable to the subsidiary banks. However, the Federal Reserve Board has provided a "Small Bank Holding Company" exception to its consolidated capital requirements, such that bank holding companies with less than $3.0 billion of consolidated assets, like Mercer Bancorp, are not subject to the consolidated holding company regulatory capital requirements unless otherwise directed by the Federal Reserve Board.

***Source of Strength.*** The Federal Reserve Board has issued regulations requiring that all bank holding companies serve as a source of strength to their subsidiary depository institutions by providing financial, managerial and other support in times of an institution's distress.

***Dividends and Stock Repurchases.*** The Federal Reserve Board has issued a policy statement regarding the payment of dividends by holding companies. In general, the policy provides that dividends should be paid only out of current earnings and only if the prospective rate of earnings retention by the holding company appears consistent with the organization's capital needs, asset quality and overall supervisory financial condition. Separate regulatory guidance provides for prior consultation with Federal Reserve Bank staff concerning dividends in certain circumstances such as where the holding company's net income for the past four quarters, net of dividends previously paid over that period, is insufficient to fully fund the dividend or the company's overall rate of earnings retention is inconsistent with the company's capital needs and overall financial condition. The ability of a bank holding company to pay dividends may be restricted if a subsidiary bank becomes undercapitalized.

The regulatory guidance also states that a bank holding company should consult with Federal Reserve Bank supervisory staff prior to redeeming or repurchasing common stock or perpetual preferred stock if the bank holding company is experiencing financial weaknesses or the repurchase or redemption would result in a net reduction, at the end of a quarter, in the amount of such equity instruments outstanding compared with the beginning of the quarter in which the redemption or repurchase occurred, regardless of the applicability of the notification requirement referenced below.

There is a separate requirement that a bank holding company give the Federal Reserve Board prior written notice of any purchase or redemption of then outstanding equity securities if the gross consideration for the purchase or redemption, when combined with the net consideration paid for all such purchases or redemptions during the preceding 12 months, is equal to 10% or more of the company's consolidated net worth. The Federal Reserve Board may disapprove such a purchase or redemption if it determines that the proposal would constitute an unsafe and unsound practice, or would violate any law, regulation, Federal Reserve Board order or directive, or any condition imposed by, or written agreement with, the Federal Reserve Board. There is an exception to this approval requirement for well-capitalized bank holding companies that meet certain other conditions.

These regulatory policies may affect the ability of Mercer Bancorp to pay dividends, repurchase shares of common stock or otherwise engage in capital distributions.

**Federal Securities Laws**

The Company's common stock is registered with the Securities and Exchange Commission. Mercer Bancorp is subject to the information, proxy solicitation, insider trading restrictions and other requirements under the Securities Exchange Act of 1934, as amended.

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**Emerging Growth Company Status**

The JOBS Act, which was enacted in 2012, has made numerous changes to the federal securities laws to facilitate access to capital markets. Under the JOBS Act, a company with total annual gross revenues of less than $1.235 billion during its most recently completed fiscal year qualifies as an "emerging growth company." Mercer Bancorp qualifies as an "emerging growth company," and we believe that we will continue to qualify as an "emerging growth company" for five years from the completion of the stock offering.

An "emerging growth company" may choose not to hold stockholder votes to approve annual executive compensation (more frequently referred to as "say-on-pay" votes) or executive compensation payable in connection with a merger (more frequently referred to as "say-on-golden parachute" votes). An emerging growth company also is not subject to the requirement that its auditors attest to the effectiveness of the company's internal control over financial reporting, and can provide scaled disclosure regarding executive compensation; however, the Company also is not subject to the auditor attestation requirement or additional executive compensation disclosure so long as it remains a "non-accelerated filer" and a "smaller reporting company," respectively, under Securities and Exchange Commission regulations (generally less than $250 million of voting and non-voting equity held by non-affiliates or less than $100 million in annual revenue). Finally, an emerging growth company may elect to comply with new or amended accounting pronouncements in the same manner as a private company, but must make such election when the company is first required to file a registration statement. The Company has elected to comply with new or amended accounting pronouncements in the same manner as a private company.

A company loses emerging growth company status on the earlier of: (i) the last day of the fiscal year of the company during which it had total annual gross revenues of $1.235 billion or more; (ii) the last day of the fiscal year of the issuer following the fifth anniversary of the date of the first sale of common equity securities of the company pursuant to an effective registration statement under the Securities Act of 1933; (iii) the date on which such company has, during the previous three-year period, issued more than $1.0 billion in non-convertible debt; or (iv) the date on which such company is deemed to be a "large accelerated filer" under Securities and Exchange Commission regulations (generally, at least $700 million of voting and non-voting equity held by non-affiliates).

**Sarbanes-Oxley Act of 2002**

The Sarbanes-Oxley Act of 2002 is intended to improve corporate responsibility, to provide for enhanced penalties for accounting and auditing improprieties at publicly traded companies and to protect investors by improving the accuracy and reliability of corporate disclosures required under the federal securities laws. We have policies, procedures and systems designed to comply with these regulations, and we review and document such policies, procedures and systems to ensure continued compliance with these regulations.

**Change in Control Regulations**

Under the Change in Bank Control Act, no person may acquire control of a bank holding company such as Mercer Bancorp unless the Federal Reserve Board has been given 60 days' prior written notice and has not issued a notice disapproving the proposed acquisition, taking into consideration certain factors, including the financial and managerial resources of the acquirer and the competitive effects of the acquisition. Control, as defined under the Change in Bank Control Act, means ownership, control of or power to vote 25% or more of any class of voting stock of the institution. Acquisition of more than 10% of any class of a bank holding company's voting stock constitutes a rebuttable presumption of control under the regulations under certain circumstances including where, like the Company, the issuer has registered securities under Section 12 of the Securities Exchange Act of 1934.

In addition, federal regulations separately provide that no company may acquire control of a bank holding company without the prior approval of the Federal Reserve Board. Control, as defined under the Bank Holding Company Act and Federal Reserve Board regulations, means ownership, control, or power to vote 25% or more of any class of voting stock, control in any manner over the election of a majority of the company's directors, or a determination by the regulator that the acquiror has the power to exercise, directly or indirectly, a controlling influence over the management or policies of the company. Any company that acquires such control becomes a "bank holding

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company" subject to registration, examination and regulation by the Federal Reserve Board. The Federal Reserve Board adopted a final rule, effective September 30, 2020, that revised its framework for determining whether a company has a "controlling influence" over a bank holding company for that purpose. The rule applies to questions of control under the Bank Holding Company Act but does not extend to the Change in Bank Control Act.

**Taxation**

**Federal Taxation**

***General.*** The Company and the Bank are subject to federal income taxation in the same general manner as other corporations, with some exceptions discussed below. The following discussion of federal taxation is intended only to summarize material federal income tax matters and is not a comprehensive description of the tax rules applicable to the Company and the Bank.

***Method of Accounting.*** For federal income tax purposes, we currently report our income and expenses using the accrual method of accounting and use a tax year ending September 30 for filing federal income tax returns. The Small Business Protection Act of 1996 eliminated the use of the reserve method of accounting for bad debt reserves by savings institutions, effective for taxable years beginning after 1995.

***Minimum Tax.*** The alternative minimum tax ("AMT") for corporations has been repealed for tax years beginning after December 31, 2017. Any unused minimum tax credit of a corporation may be used to offset regular tax liability for any tax year. In addition, a portion of unused minimum tax credit was refundable in 2018 through 2021. The refundable portion is 50% (100% in 2021) of the excess of the minimum tax credit for the year over any credit allowable against regular tax for that year. At September 30, 2025, we had no minimum tax credit carryforward.

***Net Operating Loss Carryovers.*** Generally, a corporation may carry forward net operating losses generated in tax years beginning after December 31, 2017 indefinitely and can offset up to 80% of taxable income. At September 30, 2025, we had no net operating loss carryforwards.

***Capital Loss Carryovers.*** Generally, a corporation may carry back capital losses to the preceding three taxable years and forward to the succeeding five taxable years. Any capital loss carryback or carryover is treated as a short-term capital loss for the year to which it is carried. As such, it is grouped with any other capital losses for the year to which carried and is used to offset any capital gains. Any undeducted loss remaining after the five-year carryover period is not deductible. At September 30, 2025, we had no capital loss carryovers.

***Corporate Dividends.*** Mercer Bancorp may generally exclude from our income 100% of dividends received from the Bank as a member of the same affiliated group of corporations.

***Audit of Tax Returns.*** Our federal income tax returns have not been audited in the most recent five-year period.

**State Taxation**

The Bank is subject to Ohio taxation in the same general manner as other financial institutions. In particular, we file a consolidated Ohio Financial Institutions Tax ("FIT") return. The FIT is based upon the net worth of the consolidated group. For Ohio FIT purposes, savings institutions are currently taxed at a rate equal to 0.8% of taxable net worth, capped at 14% of the institution's total assets.

As a Maryland business corporation, the Company is required to file an annual report with and pay personal property taxes to the State of Maryland.

#### Item 1A. Risk Factors
Not applicable, as the Company is a "smaller reporting company."

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#### Item 1B. Unresolved Staff Comments
Not applicable.

#### Item 1C. Cybersecurity
The Company and the Bank recognize the critical importance of cybersecurity in maintaining the integrity, confidentiality, and availability of our systems and data. Our operational risks include the risk of malfeasance or security breaches by employees or persons outside our company. Although we take protective measures, the security of our computer systems, software, and networks may be vulnerable to breaches, unauthorized access, misuse, computer viruses, or other malicious code and cyber-attacks that could have an impact on our information security, operations, and reputation. As a financial institution entrusted with sensitive customer information and financial assets, the Bank is committed to implementing robust cybersecurity risk management practices, strategies, and governance mechanisms.

The bank's cybersecurity consultant and partner (Community Bank Consulting) is primarily responsible for implementing cybersecurity measures and reports directly to the SVP of Operations. The Bank has established a standing information technology steering committee (the "IT Committee"), consisting of the President and Chief Executive Officer, the Senior Vice President of Operations, the Assistant Vice President of Operations, and the Bank's technology partner which generally meets on a quarterly basis. The IT Committee provides oversight of the Bank's technology and information security programs, including cybersecurity risk management, policies, practices, controls, and threat detection and prevention efforts. More frequent meetings may occur from time to time in order to facilitate timely information and monitoring efforts. At IT Committee meetings, the Bank's technology partner reports on key issues, including significant cybersecurity or data privacy risks and any specific threats or incidents.

**Cybersecurity Risk Management:** The Bank employs a comprehensive approach to cybersecurity risk management to avoid or minimize the impact of external threats and efforts to penetrate, disrupt or misuse our systems or information.

**●** **Risk Assessment:** Regular assessments of cybersecurity risks are conducted annually to identify potential threats, vulnerabilities, and their potential impact on the Bank's operations. These assessments cover both internal and external factors affecting the Bank's IT infrastructure and systems.

**●** **Risk Mitigation:** Upon identifying risks, the Bank's policies and practices may be revised to protect against any anticipated threats or hazards to the security or integrity of such information. This involves deploying advanced security technologies, implementing security best practices, and ensuring compliance with industry standards and regulations.

**●** **Monitoring and Response:** The Bank maintains continuous monitoring capabilities to detect and respond to cybersecurity incidents promptly. Automated tools, as well as internal and external dedicated security teams, are used to monitor network traffic, system logs, and other relevant indicators of compromise.

**●** **Audit and Testing:** Independent third-party penetration testing , IT security audits, and vulnerability assessments are completed at least annually to test the effectiveness of security controls and preparedness measures (or more often if warranted by the risk assessment or other external factors). The IT Steering Committee determines the scope and objectives of the penetration analysis. Results of audits and testing are reported directly to the Audit Committee of the Board of Directors.

**Cybersecurity Strategy:** Key components of our cybersecurity risk management strategy include:

**●** **Defensive Measures:** The Bank incorporates multiple defensive measures at various levels of its IT infrastructure, including firewalls, intrusion detection systems, endpoint protection, and data encryption.

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**●** **Employee Awareness and Training:** The Bank recognizes that employees are a critical line of defense against cyber threats. The Bank invests in cybersecurity awareness training programs to educate employees about potential risks and best practices for safeguarding sensitive information.

**●** **Vendor Risk Management:** The Bank evaluates and manages the cybersecurity risks associated with third-party vendors. Vendor contracts include provisions for security requirements, regular assessments, and compliance with industry standards.

● **Incident Response Plan:** The Bank maintains an Incident Response Policy and Plan that provides a documented framework for responding to actual or potential cybersecurity incidents. The Incident Response Plan is coordinated through the IT steering committee, and key members of management are embedded into the plan by its design. The Incident Response Plan is reviewed and approved by the IT Steering Committee annually and provided to the Board of Directors for approval.

**Cybersecurity Governance:** Key elements of the Bank's cybersecurity governance structure include:

**●** **Board Oversight:** The Board of Directors provides oversight of the Bank's cybersecurity posture , including reviewing and approving cybersecurity policies, strategies, testing, and investments. Our Board of Directors includes members who have expertise in information technology and telecommunications. Director Jose Faller is the Director of Human Resources and Technology at Cooper Farms, a farm and food company based in northwest Ohio, who previously worked as a network administrator for the U.S. Army. Additionally, Director Michael Boley is the President and Chief Executive Officer of Wabash Mutual Telephone Company, a customer-owned broadband communications company. Nonetheless, the Board relies to a large degree on management and outside consultants in overseeing cybersecurity risk management. The board receives quarterly internal audit reports, prepared by our technology consultant and partner and presented by management. Additionally, an annual information technology audit report, including cybersecurity matters, is prepared by a third-party IT auditor and presented directly to the Audit Committee.

**●** **IT Committee:** The Bank has established a standing IT Committee, consisting of the President and Chief Executive Officer, the Senior Vice President of Operations, the Assistant Vice President of Operations, and the Bank's technology consultant and partner which meets on a quarterly basis. The IT Committee is responsible for overseeing cybersecurity risk management and prevention efforts . Our technology consultant and partner provides internal audit reports on a quarterly basis, which are presented to the Board of Directors by management at their next regular meeting.

The Bank is committed to protecting the interests of its customers, shareholders, and other stakeholders. By implementing robust risk management practices, strategic initiatives, and effective governance mechanisms, the Bank strives to mitigate cybersecurity risks and safeguard its operations against evolving threats.

#### Item 2. Properties
At September 30, 2025, the net book value of our properties (including furniture, fixtures and equipment) was $5.2 million. We conduct our operations from our main office in Celina, Ohio, three branch offices in Celina, Fort Recovery and Greenville, Ohio, and one branch office in Berne in eastern Indiana. We own all of our branch office properties.

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#### Item 3. Legal Proceedings
Periodically, there have been various claims and lawsuits against us, such as claims to enforce liens, condemnation proceedings on properties in which we hold security interests, claims involving the making and servicing of real property loans and other issues incident to our business. At September 30, 2025, we were not involved in any legal proceedings which we believe would have a material adverse effect on our financial condition or results of operations.

#### Item 4. Mine Safety Disclosures
Not applicable.

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#### PART II

#### Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
**Market for Registrant's Common Equity**

Mercer Bancorp's common stock has been quoted on OTCQB Market under the symbol "MSBB" since July 27, 2023. At December 18, 2023, Mercer Bancorp, Inc. had 249 stockholders of record. Certain shares of the Company are held in "nominee" or "street" name and accordingly, the number of beneficial owners of such shares is not known or included in the foregoing number.

The following table sets forth the quarterly high and low prices for a share of the Company's common stock for fiscal year 2025 and 2024. The information was obtained from the OTCQB Market. The quotations reflect inter-dealer prices, without retail mark-up, markdown or commission and may not represent actual transactions.

---

| | | |
|:---|:---|:---|
|  | **Market Value of Common Stock** | **Market Value of Common Stock** |
|  | **High** | **Low** |
| Quarter Ended December 31, 2024 | $14.15 | $12.65 |
| Quarter Ended March 31, 2025 | 14.64 | 13.70 |
| Quarter Ended June 30, 2025 | 17.99 | 13.00 |
| Quarter Ended September 30, 2025 | 15.50 | 14.60 |
| Quarter Ended December 31, 2023 | $13.92 | $13.06 |
| Quarter Ended March 31, 2024 | 13.70 | 13.20 |
| Quarter Ended June 30, 2024 | 13.40 | 12.80 |
| Quarter Ended September 30, 2024 | 13.45 | 11.63 |

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Mercer Bancorp currently does not anticipate paying a dividend to its stockholders. The payment and amount of any dividend payments will be subject to statutory and regulatory limitations, and will depend upon a number of factors, including the following: regulatory capital requirements; our financial condition and results of operations; our other uses of funds for the long-term value of stockholders; tax considerations; and general economic conditions.

**Common Stock Repurchases**

On December 18, 2024, the Company announced that it had adopted and received regulatory non-objection to a stock repurchase program. Pursuant to the program, the Company may repurchase up to 102,297 shares of its common stock, which represented approximately 10% of the Company's outstanding common shares at the time of adoption. As of September 30, 2025, the Company had repurchased 26,997 shares for a total purchase price of $386,000. There were no repurchases during the quarter ended September 30, 2025. The repurchase program has no expiration date.

#### Item 6. [Reserved]

#### Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations
This discussion and analysis reflects our financial statements and other relevant statistical data, and is intended to enhance your understanding of our financial condition and results of operations. The information in this section has been derived from the financial statements, which appear beginning on page F-1 of this Annual Report on Form 10-K. You should read the information in this section in conjunction with the business and financial information regarding Mercer Bancorp provided in this Annual Report on Form 10-K.

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#### Overview
Mercer Bancorp conducts its operations primarily through Mercer Savings Bank. The Bank's business consists primarily of taking deposits from the general public and investing those deposits, together with funds generated from operations and borrowings, in one- to four-family residential mortgage loans and agricultural real estate loans secured by properties located in our primary market area. To a lesser extent, we also originate consumer loans, multifamily real estate loans, commercial real estate loans, construction and land loans, home equity lines of credit, and commercial and industrial loans. Additionally, in January 2023, we began implementing an indirect automobile lending program, in which loan applications are referred to us by car dealerships. Our management has experience with indirect automobile lending and we intend to prudently grow that segment of the loan portfolio. We intend to retain a portion of these automobile loans and also intend to sell certain of these automobile loans that we originate. We also invest in securities, which have historically consisted primarily of mortgage-backed securities and obligations issued by U.S. government sponsored enterprises, state and municipal securities. Following the conversion and stock offering, we intend to continue to seek to expand our residential real estate and agricultural real estate portfolios. We offer a variety of deposit accounts including checking accounts, savings accounts and certificates of deposit. Our primary source of funding is core deposits. We also utilize advances from the Federal Home Loan Bank of Cincinnati and brokered deposits for liquidity and asset/liability management purposes, and may attempt to attract municipal deposits to a lesser extent.

Our results of operations depend primarily on our net interest income. Net interest income is the difference between the interest income we earn on our interest-earning assets and the interest we pay on our interest-bearing liabilities. Our results of operations also are affected by our provisions for credit losses, non-interest income and non-interest expense. Non-interest income currently consists primarily of service charges on deposit accounts, gains on sales of loans, and income from bank owned life insurance. Non-interest expense currently consists primarily of expenses related to employee compensation and benefits, data processing expense, occupancy and equipment expense, check, ATM, credit card processing and network fees, director compensation and benefits, professional services fees, and other expenses. Our results of operations may also be affected significantly by general and local economic and competitive conditions, changes in inflation, market interest rates, governmental policies and actions of regulatory authorities. Mercer Savings Bank is subject to comprehensive regulation and examination by the ODFI and the FDIC.

#### Business Strategy
Our principal objective is to build long-term value for our stockholders by operating a profitable community-oriented financial institution dedicated to meeting the banking needs of our customers. Highlights of our current business strategy include:

●  ***Continue to focus on originating one- to four-family residential mortgage loans and agricultural real estate loans for retention in our loan portfolio.*** We are primarily a residential mortgage lender for borrowers in our primary market area. At September 30, 2025, $78.8 million, or 54.7% of our total loan portfolio, consisted of residential mortgage loans. Additionally, given the rural economy of our market area, agricultural real estate loans also comprise a significant portion of our loan portfolio. At September 30, 2025, $46.3 million, or 32.2% of our total loan portfolio, consisted of agricultural real estate loans. We have significant experience in these areas and expect that residential mortgage and agricultural real estate lending will remain our primary lending activities following the conversion and stock offering.

●  ***Grow and diversify our loan portfolio prudently by implementing an indirect automobile lending program and enhance fee income through the pooling and sale of such loans*** . Although we intend to continue our historical focus on the origination of residential mortgage and agricultural real estate loans, in January 2023, we began implementing an indirect automobile lending program. We originate indirect automobile loans from car dealerships located in western and southeastern Ohio and eastern Indiana. At September 30, 2025, $4.4 million, or 3.1% of our total loan portfolio, consisted of indirect automobile loans held for investment and we had an additional $8.1 million of automobile loans held for sale. We intend to prudently increase our originations of consumer automobile loans in order to diversify our loan portfolio, increase yield and manage interest rate risk. We also intend to pool and sell to investors some of the automobile loans that we originate to enhance fee income. During the year ended September 30, 2025,

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we did not sell any indirect automobile loans. Efforts to market indirect auto loan pools to investor banks are currently anticipated to begin in the second calendar quarter of 2026.

●  ***Maintain our strong asset quality through conservative loan underwriting.*** We intend to maintain strong asset quality through what we believe are our conservative underwriting standards and credit monitoring processes. At September 30, 2025, our nonperforming loans totaled $1.3 million, or 0.94% of total loans.

●  ***Continue efforts to gain deposit market share and grow our low-cost "core" deposit base.*** We consider our core deposits to include savings accounts, money market accounts, other savings deposits and checking accounts. Core deposits provide a stable source of funds to support loan growth at costs consistent with improving our interest rate spread and net interest margin. We will continue our efforts to increase our core deposits through customer service, products and services offered, and customer accessibility via both traditional branches and digital platforms. Core deposits totaled $93.7 million, or 65.1% of total deposits, at September 30, 2025.

●  ***Expand our market area and access to customers through organic growth and de novo branching, while also considering opportunistic acquisitions.*** We intend to grow our balance sheet organically on a managed basis. In addition to organic growth, we may also consider expansion opportunities in our market area or in contiguous markets that we believe would enhance both our franchise value and stockholder returns. These opportunities may include establishing new ("de novo") branch offices or acquiring other financial institutions or branch offices. We constructed a fifth branch in Berne, Adams County, in Indiana in 2025. We believe this de novo branch will expand our access to customers and core deposits in that part of our market area. In addition, we have added a mobile branch which will primarily offer deposit services at scheduled locations.

#### Critical Accounting Policies
**The discussion and analysis of the financial condition and results of operations are based on our financial statements, which are prepared in conformity with generally accepted accounting principles used in the United States of America. The preparation of these financial statements requires management to make estimates and assumptions affecting the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of income and expenses. We consider the accounting policies discussed below to be critical accounting policies. The estimates and assumptions that we use are based on historical experience and various other factors and are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions, resulting in a change that could have a material impact on the carrying value of our assets and liabilities and our results of operations.** 

**The Jumpstart Our Business Startups Act of 2012 (the "JOBS Act") contains provisions that, among other things, reduce certain reporting requirements for qualifying public companies. As an "emerging growth company" we may delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. We intend to take advantage of the benefits of this extended transition period. Accordingly, our financial statements may not be comparable to companies that comply with such new or revised accounting standards.**

#### The following represent our critical accounting policies:
***Allowance for Credit Losses.* The allowance for credit losses is the estimated amount considered necessary to cover inherent, but unconfirmed, credit losses in the loan portfolio at the balance sheet date. The allowance is established through the provision for credit losses which is charged against income. In determining the allowance for credit losses, management makes significant estimates and has identified this policy as one of our most critical accounting policies.**

**Management performs a quarterly evaluation of the allowance for credit losses on loans and unfunded commitments. Consideration is given to a variety of factors in establishing this estimate including, but not limited to, current economic conditions, delinquency statistics, geographic and industry concentrations, the adequacy of the** 

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**underlying collateral, the financial strength of the borrower, results of internal loan reviews and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant change.**

**The allowance for credit losses is evaluated following the accounting guidance in Accounting Standards Update (ASU) No. 2016-13 *Financial Instruments – Credit Losses (Topic 326)* for the fiscal year ended September 30, 2025. ASC 326 replaced the incurred loss impairment methodology with a new current expected credit loss (CECL) methodology that reflects expected credit losses over the lives of the credit instruments and requires consideration of a broader range of information to estimate credit losses. ASC 326 requires an estimate of all expected credit losses for loans based on historical experience, current conditions, and reasonable and supportable forecasts.**

**Actual loan losses may be significantly more than the allowances we have established which could result in a material negative effect on our financial results.**

#### Comparison of Financial Condition at September 30, 2025 and September 30, 2024
***Total Assets.* Total assets were $176.2 million at September 30, 2025, a decrease of $5.6 million, or 3.1%, from September 30, 2024. The decrease was primarily comprised of a decrease in loans and loans held for sale of $5.3 million, a decrease in investment securities of $1.5 million, a decrease in FHLB stock of $664,000, and a decrease in cash and cash equivalents of $534,000, which were partially offset by an increase in premises and equipment of $2.4 million.** 

***Cash and Cash Equivalents.* Cash and cash equivalents decreased by $534,000, or 9.1%, to $5.4 million at September 30, 2025 from $5.9 million at September 30, 2024. During the year ended September 30, 2025, we used excess liquidity to pay down our Federal Home Loan Bank borrowings**

***Investment Securities.* Investment securities available for sale and held to maturity decreased $1.5 million, or 13.3%, to $9.7 million at September 30, 2025, from $11.2 million at September 30, 2024. The decrease was primarily comprised of sales, calls, maturities and repayments of $1.7 million, partially offset by purchases of $277,000.** 

**The yield on investment securities was 3.10% for the year ended September 30, 2025, compared to 2.55% for the year ended September 30, 2024, reflecting the recent increases in the overall interest rate environment.** 

***Loans Held for Sale.* Loans held for sale decreased to $8.1 million at September 30, 2025 compared to $10.5 million at September 30, 2024. The decrease was due primarily to paydowns. During fiscal 2023, management established an indirect automobile lending program and began to originate auto loans both for sale and for investment. Loans held for sale consisted solely of automobile loans at September 30, 2025. No sales of auto loans occurred during the year ended September 30, 2025 or 2024. Efforts to market indirect auto loan pools to investor banks are currently anticipated to begin in the second calendar quarter of 2026.**

***Net Loans.* Net loans decreased by $2.8 million, or 1.9%, to $142.3 million at September 30, 2025 from $145.1 million at September 30, 2024. During the year ended September 30, 2025, loan originations totaled $27.5 million, comprised primarily of $4.9 million secured by agricultural real estate, $17.0 million of loans secured by one- to four-family residential real estate and $2.8 million of construction loans. The growth in agricultural real estate was in the normal course of business. Consumer loans originated totaled $2.5 million, the majority of which were automobile loans. Management designated $609,000 of these auto loans originated during the year ended September 30, 2025 as held for sale and $1.6 million were held in the portfolio.** 

**During the year ended September 30, 2025, residential real estate loans increased $5.5 million, or 7.5%, to $78.8 million at September 30, 2025, from $73.3 million at September 30, 2024. Agricultural real estate loans decreased $7.2 million, or 13.5%, to a total of $46.3 million at September 30, 2025 and construction and land loans decreased $1.8 million, or 29.2%, to $4.3 million at September 30, 2025 while consumer loans decreased $433,000, or 7.9%, to $5.1 million at September 30, 2025, as repayments outpaced originations.**

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**Bank's strategy includes growing the loan portfolio, continuing to focus primarily on owner-occupied one-to-four family residential real estate loans, agricultural real estate loans and indirect automobile loans.** 

***Deposits.* Deposits increased by $9.4 million, or 7.0%, to $144.0 million at September 30, 2025 from $134.6 million at September 30, 2024. Core deposits increased $2.0 million, or 2.2%, to $93.7 million at September 30, 2025 from $91.7 million at September 30, 2024. Certificates of deposit increased $7.4 million, or 17.3%, to $50.3 million at September 30, 2025 from $42.9 million at September 30, 2024. The increase in certificates of deposit was primarily a result of a $9.7 million increase in brokered deposits year-to-year.** 

**During the year ended September 30, 2025, management continued its strategy of pursuing growth in demand accounts and other lower cost core deposits, in part by enhancing products and services offered and increased marketing. Management intends to continue its efforts to increase core deposits, with an emphasis on growth in consumer and business demand deposits.** 

***Advances from the Federal Home Loan Bank.* Advances from the Federal Home Loan Bank totaled $6.0 million at September 30, 2025, a decrease of $16.0 million, or 72.7%, from the $22.0 million balance at September 30, 2024. Maturing advances were repaid primarily from proceeds from the growth in deposits, as well as the maturities of investment securities and repayments on loans. Advances totaling $6.0 million are scheduled to mature within one year from September 30, 2025.** 

***Shareholders' Equity.* Shareholders' equity increased $659,000, or 2.8%, to $24.6 million at September 30, 2025, from $24.0 million at September 30, 2024. The increase resulted primarily from net income of $972,000 which was partly offset by a $386,000 repurchase of common stock, and an additional $67,000 of accumulated other comprehensive loss.** 

#### Comparison of Operating Results for the Years Ended September 30, 2025 and 2024
***General.* Net income for the year ended September 30, 2025 was $972,000, an increase of $280,000, or 40.4%, compared to $693,000 for the year ended September 30, 2024. The increase in net income was primarily due to a $1.1 million increase in net interest income, partially offset by a $341,000 decrease in noninterest income, a $376,000 increase in noninterest expenses, and a $90,000 increase in provision for income taxes.** 

***Interest Income.* Interest income increased $1.2 million, or 14.4%, to $9.4 million for the year ended September 30, 2025 from $8.2 million for the year ended September 30, 2024. This increase was attributable to a $1.2 million, or 16.0%, increase in interest on loans receivable and a $23,000, or 7.3%, increase in interest on investment securities, partially offset by a $53,000, or 15.4%, decrease in interest on interest-bearing deposits and other assets.** 

**The average balance of loans during the year ended September 30, 2025 increased by $9.9 million, or 6.8%, from the balance for the year ended September 30, 2024, while the average yield on loans increased by 45 basis points to 5.70% for the year ended September 30, 2025 from 5.25% for the year ended September 30, 2024. The increase in average yield on loans reflects the increase in the overall interest rate environment year to year. As interest rates began to increase during the Bank's fiscal 2025 year, the interest rates on the Bank's adjustable-rate loans have adjusted upward. More recently, however, the Federal Reserve has begun implementing rate cuts.** 

**The average balance of investment securities decreased $1.5 million, or 11.8%, to $10.9 million for the year ended September 30, 2025 compared to the year ended September 30, 2024, while the average yield on investment securities increased by 55 basis points to 3.10% for the year ended September 30, 2025 from 2.55% for the year ended September 30, 2024.** 

**Interest income on other interest-bearing deposits, comprised primarily of certificates of deposit in other financial institutions, overnight deposits and stock in the Federal Home Loan Bank, decreased $53,000, or 15.4%, for the year ended September 30, 2025, due to a decrease in the average balance of $2.5 million, partially offset by an increase** 

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**in the average yield of 183 basis points, to 7.00% for the year ended September 30, 2025 from 5.17% for the year ended September 30, 2024. The increase in average yield was due to the increase in interest rates in the overall economy during the periods.** 

***Interest Expense.* Total interest expense increased $103,000, or 4.1%, to $2.6 million for the year ended September 30, 2025 from $2.5 million for the year ended September 30, 2024. Interest expense on deposits increased $112,000, or 6.5%, due primarily to an increase of one basis point in the average cost of deposits to 1.50% for the year ended September 30, 2025 from 1.49% for the year ended September 30, 2024, and an increase of $7.0 million, or 6.0%, in the average balance of interest-bearing deposits to $123.2 million for the year ended September 30, 2025 from $116.2 million for the year ended September 30, 2024.** 

**Interest expense on borrowings decreased $9,000, or 1.1%, for the year ended September 30, 2025, compared to the year ended September 30, 2024. The decrease was due to a 32 basis point decrease in the weighted-average rate, to 4.79% for the year ended September 30, 2025, partially offset by an $866,000 increase in the average balance outstanding, to $16.5 million for the year ended September 30, 2025 from $15.7 million for the year ended September 30, 2024.** 

***Net Interest Income.* Net interest income increased $1.1 million, or 19.0%, to $6.8 million for the year ended September 30, 2025 compared to $5.7 million for the year ended September 30, 2024. The interest rate spread increased to 3.67% for the year ended September 30, 2025 from 3.12% for the year ended September 30, 2024. Our net interest margin increased to 4.01% for the year ended September 30, 2025 from 3.49% for the year ended September 30, 2024. The interest rate spread and net interest margin were impacted by a series of interest rate decreases in the economy during 2025 and 2024.** 

***Provision for Credit Losses.* Based on an analysis of the factors described in "Critical Accounting Policies—Allowance for Credit Losses," management determined that a $66,000 provision for credit losses was required for the year ended September 30, 2025, a decrease of $2,000 from the year ended September 30, 2024. The allowance for credit losses on loans was $960,000 at September 30, 2025 and $963,000 at September 30, 2024 and represented 0.67% of total loans at September 30, 2025, and 0.65% of total loans at September 30, 2024.** 

**Total nonperforming loans were $1.3 million at September 30, 2025, compared to $386,000 at September 30, 2024. Classified loans totaled $737,000 at September 30, 2025, compared to $482,000 at September 30, 2024, and total loans past due greater than 30 days were $2.3 million at September 30, 2025 and $1.3 million at September 30, 2024. each of those respective dates. As a percentage of nonperforming loans, the allowance for credit losses was 134.2% at September 30, 2025 compared to 249.6% at September 30, 2024.** 

**The allowance for credit losses reflects the estimate management believes to be appropriate to cover incurred probable losses which were inherent in the loan portfolio at September 30, 2025 and 2024. While management believes the estimates and assumptions used in the determination of the adequacy of the allowance are reasonable, such estimates and assumptions could be proven incorrect in the future, and the actual amount of future provisions may exceed the amount of past provisions, and the increase in future provisions that may be required may adversely impact the Bank's financial condition and results of operations. In addition, bank regulatory agencies periodically review the allowance for credit losses and may require an increase in the provision for credit losses or the recognition of loan charge-offs, based on judgments different than those of management.** 

***Non-Interest Income.* Non-interest income totaled $505,000 for the year ended September 30, 2025, a decrease of $341,000, or 40.3%, from $846,000 for the year ended September 30, 2024. The decrease was due primarily to a non-recurring $160,000 incentive which had been received for switching to Mastercard as the Bank's credit and debit card provider during fiscal 2024, a $97,000 decrease in service fees on deposits, and a decrease of $85,000 in late fees on loans.** 

***Noninterest Expense.* Noninterest expense increased $376,000, or 6.7%, to $6.0 million for the year ended September 30, 2025, compared to $5.6 million for the year ended September 30, 2024. The increase was due primarily to a $210,000, or 32.6%, increase in data processing fees, a $189,000, or 7.5%, increase in salaries and employee benefits,** 

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#### and a $50,000, or 9.9%, increase in occupancy and equipment, partially offset by an $88,000, or 31.6%, decrease in deposit account services expense.
**The increase in salaries and employee benefits was due primarily to expense related to stock awards and options, normal merit increases and a 9% increase in health insurance cost year-to-year. The increase in data processing was due primarily to expense related to the conversion to a new core data processing service which took place in February 2025. The new service provides better customer enhancements and internal capabilities. The increase in occupancy and equipment was due primarily to increase in depreciation expense due to equipment upgrades and the opening of the new branch office in Berne, Indiana. The decrease in account services expense is a result of our conversion to our new core processor.** 

***Income Taxes.* Income taxes increased by $90,000, or 54.1%, to $255,000 for the year ended September 30, 2025, compared to $166,000 for the year ended September 30, 2024. The effective tax rates were 20.8% and 19.3% for the years ended September 30, 2025 and 2024, respectively.** 

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#### Average Balance Sheets
The following tables set forth average balance sheets, average yields and costs, and certain other information at the dates and for the periods indicated, presented in thousands. No tax-equivalent yield adjustments have been made, as the effects would be immaterial. Average yields include the effect of net deferred fee income, discounts and premiums that are amortized or accreted to interest income or interest expense. Average balances are calculated using monthly average balances. Non-accrual loans are included in the computation of average balances only. Average loan balances include loans held for sale.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **For the Year Ended September 30,** | **For the Year Ended September 30,** | **For the Year Ended September 30,** | **For the Year Ended September 30,** | **For the Year Ended September 30,** | **For the Year Ended September 30,** |
|  | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
|  | **Average** <br>**Outstanding** <br>**Balance** | <br>**Interest** | <br>**Average** <br>**Yield/Rate** | **Average** <br>**Outstanding** <br>**Balance** | <br>**Interest** | <br>**Average** <br>**Yield/Rate** |
|  | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** |
| **Interest-earning assets:** |  |  |  |  |  |  |
| Loans (1) | $154581 | $8809 | 5.70% | $144714 | $7591 | 5.25% |
| Taxable securities | 7191 | 225 | 3.13 | 8475 | 197 | 2.32 |
| Tax-exempt securities | 3673 | 112 | 3.05 | 3849 | 117 | 3.04 |
| Interest-earning deposits and other | 4136 | 289 | 6.99 | 6619 | 342 | 5.17 |
| &nbsp;&nbsp;Total interest-earning assets | 169581 | 9435 | 5.56 | 163657 | 8247 | 5.04 |
| Noninterest-earning assets | 10162 |  |  | 7854 |  |  |
| Allowance for credit losses | (940) |  |  | (965) |  |  |
| &nbsp;&nbsp;Total assets | $178803 |  |  | $170546 |  |  |
| **Interest-bearing liabilities:** |  |  |  |  |  |  |
| Interest-bearing demand deposits | $30116 | 8 | 0.03% | $38215 | 11 | 0.03% |
| Savings deposits | 48598 | 295 | 0.61 | 38257 | 236 | 0.62 |
| Certificates of deposit | 44476 | 1542 | 3.47 | 39714 | 1486 | 3.74 |
| &nbsp;&nbsp;Total interest-bearing deposits | 123190 | 1845 | 1.50 | 116186 | 1733 | 1.49 |
| Federal Home Loan Bank advances | 16528 | 792 | 4.79 | 15662 | 801 | 5.11 |
| &nbsp;&nbsp;Total interest-bearing liabilities | 139718 | 2637 | 1.89 | 131848 | 2534 | 1.92 |
| Noninterest-bearing demand deposits | 14930 |  |  | 14282 |  |  |
| Other noninterest-bearing liabilities | 77 |  |  | 1964 |  |  |
| &nbsp;&nbsp;Total liabilities | 154725 |  |  | 148094 |  |  |
| Equity | 24078 |  |  | 22452 |  |  |
| &nbsp;&nbsp;Total liabilities and equity | $178803 |  |  | $170546 |  |  |
| Net interest income |  | $6798 |  |  | $5713 |  |
| Net interest rate spread (2) |  |  | 3.67% |  |  | 3.12% |
| Net interest-earning assets (3) | $29863 |  |  | $31809 |  |  |
| Net interest margin (4) |  |  | 4.01% |  |  | 3.49% |
| Average interest-earning assets to interest-bearing liabilities | 121.37% |  |  | 124.13% |  |  |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Net deferred fee income included in interest earned on loans totaled $305,000 and $339,000 for the year ended September 30, 2025 and 2024, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Net interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average rate of interest-bearing liabilities.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.

&nbsp;&nbsp;&nbsp;&nbsp;(4) Net interest margin represents net interest income divided by average total interest-earning assets.

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#### Rate/Volume Analysis
The following table presents the effects of changing rates and volumes on our net interest income for the periods indicated. The rate column shows the effects attributable to changes in rate (changes in rate multiplied by prior volume). The volume column shows the effects attributable to changes in volume (changes in volume multiplied by prior rate). The total column represents the sum of the prior columns. For purposes of this table, changes attributable to both rate and volume, which cannot be segregated, have been allocated proportionately based on the changes due to rate and the changes due to volume. There were no out-of-period items or adjustments required to be excluded from the table below.

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| | | | |
|:---|:---|:---|:---|
|  | **The Year Ended** | **The Year Ended** | **The Year Ended** |
|  | **September 30, 2025 vs. 2024** | **September 30, 2025 vs. 2024** | **September 30, 2025 vs. 2024** |
|  | **Increase (Decrease)** | **Increase (Decrease)** | |
|  | **Due to** | **Due to** | |
|  | **Volume** | **Rate** | **Total**<br>**Increase**<br>**(Decrease)** |
|  | **(In thousands)** | **(In thousands)** | **(In thousands)** |
| **Interest-earning assets:** |  |  |  |
| Loans | $538 | 680 | $1218 |
| Taxable securities | (33) | 61 | 28 |
| Tax exempt-securities | (5) |  | (5) |
| Interest-earning deposits and other | (152) | 99 | (53) |
| &nbsp;&nbsp;Total interest-earning assets | 348 | 840 | 1188 |
| **Interest-bearing liabilities:** |  |  |  |
| Interest-bearing demand deposits | (2) | (1) | (3) |
| Savings deposits | 63 | (4) | 59 |
| Certificates of deposit | 170 | (114) | 56 |
| &nbsp;&nbsp;Total interest-bearing deposits | 231 | (119) | 112 |
| Federal Home Loan Bank Advances | 43 | (52) | (9) |
| &nbsp;&nbsp;Total interest-bearing liabilities | 274 | (171) | 103 |
| Change in net interest income | $74 | $1011 | $1085 |

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#### Management of Market Risk
***General*.** Our most significant form of market risk is interest rate risk because, as a financial institution, the majority of our assets and liabilities are sensitive to changes in interest rates. Therefore, a principal part of our operations is to manage interest rate risk and limit the exposure of our financial condition and results of operations to changes in market interest rates. Interest rate risk is monitored by management and the board of directors. All directors participate in discussions during the regular board meetings evaluating the interest rate risk inherent in our assets and liabilities, and the level of risk that is appropriate. These discussions take into consideration our business strategy, operating environment, capital, liquidity and performance objectives consistent with the policy and guidelines approved by them. Additionally, we have engaged a third-party consultant to provide quarterly interest rate risk monitoring analysis, with reports delivered to the board of directors on a quarterly basis.

Our asset/liability management strategy attempts to manage the impact of changes in interest rates on net interest income, our primary source of earnings. Among the techniques we are using to manage interest rate risk are:

● maintaining capital levels that exceed the thresholds for well-capitalized status under federal regulations;

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● maintaining a high level of liquidity;

● growing our volume of core deposit accounts;

● managing our investment securities portfolio so as to reduce the average maturity and effective life of the portfolio;

● selling certain conforming, fixed-rate residential mortgages with longer terms upon origination, subject to market conditions and periodic review of our asset/liability management needs; and

● continuing to diversify our loan portfolio by adding indirect automobile loans, which typically have higher yields and shorter maturities.

By following these strategies, we believe that we are better positioned to react to increases and decreases in market interest rates.

We have not engaged in hedging activities, such as engaging in futures or options. We do not anticipate entering into similar transactions in the future.

***Economic Value of Equity*.** We compute amounts by which the net present value of our assets and liabilities (economic value of equity or "EVE") would change in the event of a range of assumed changes in market interest rates. This model uses a discounted cash flow analysis and an option-based pricing approach to measure the interest rate sensitivity of net portfolio value. The model estimates the economic value of each type of asset, liability and off-balance sheet contract under the assumptions that the United States Treasury yield curve increases instantaneously by 100, 200 and 300 basis point increments or decreases instantaneously by 100, 200 and 300 basis point increments, with changes in interest rates representing immediate and permanent, parallel shifts in the yield curve.

The following table sets forth, at September 30, 2025, the calculation of the estimated changes in our EVE that would result from the designated immediate changes in the United States Treasury yield curve.

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **At September 30, 2025** | **At September 30, 2025** | **At September 30, 2025** | **At September 30, 2025** | **At September 30, 2025** | **At September 30, 2025** |
| | |  |  | **EVE as a Percentage of Present** | **EVE as a Percentage of Present** |
| | |  |  | **Value of Assets (3)** | **Value of Assets (3)** |
| | | **Estimated Increase (Decrease)** | **Estimated Increase (Decrease)** | | |
| | | **in EVE** | **in EVE** | | |
| <br>**Change in Interest**<br>**Rates (basis points)(1)** | <br>**Estimated**<br>**EVE (2)** | **Amount** | **Percent** | <br>**EVE Ratio (4)** | **Increase**<br>**(Decrease)** <br>**(basis points)** |
| **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** |
| 300 | $38022 | $(2453) | (6.06)% | 24.91% | 88 |
| 200 | 39690 | (785) | (1.94)% | 25.08% | 105 |
| 100 | 39994 | (481) | (1.19)% | 24.54% | 51 |
|  | 40475 |  |  | 24.03% |  |
| (100) | 39584 | (891) | (2.20)% | 22.78% | (125) |
| (200) | 38035 | (2440) | (6.03)% | 21.23% | (280) |
| (300) | 35924 | (4551) | (11.24)% | 19.42% | (461) |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Assumes an immediate uniform change in interest rates at all maturities.

&nbsp;&nbsp;&nbsp;&nbsp;(2) EVE is the discounted present value of expected cash flows from assets, liabilities and off-balance sheet contracts.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Present value of assets represents the discounted present value of incoming cash flows on interest-earning assets.

&nbsp;&nbsp;&nbsp;&nbsp;(4) EVE Ratio represents EVE divided by the present value of assets.

The table above indicates that at September 30, 2025, we would have experienced an 1.94% decrease in EVE in the event of an instantaneous parallel 200 basis point increase in market interest rates and a 6.03% decrease in EVE in the event of an instantaneous 200 basis point decrease in market interest rates. As of September 30, 2024, we would have experienced a 18.94% decrease in EVE in the event of an instantaneous parallel 200 basis point increase in market

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interest rates and a 3.88% decrease in EVE in the event of an instantaneous 200 basis point decrease in market interest rates.

***Change in Net Interest Income.*** We also analyze our sensitivity to changes in interest rates through a net interest income model. Net interest income is the difference between the interest income we earn on our interest-earning assets, such as loans and securities, and the interest we pay on our interest-bearing liabilities, such as deposits and borrowings. We estimate what our net interest income would be for a 12-month period. We then calculate what the net interest income would be for the same period under the assumptions that the United States Treasury yield curve increases instantaneously by up to 300 basis points or decreases instantaneously by up to 300 basis points, with changes in interest rates representing immediate and permanent, parallel shifts in the yield curve. A basis point equals one-hundredth of one percent, and 100 basis points equals one percent. An increase in interest rates from 3% to 4% would mean, for example, a 100 basis point increase in the "Change in Interest Rates" column below.

The following table sets forth, at September 30, 2025, the calculation of the estimated changes in our net interest income ("NII") that would result from the designated immediate changes in the United States Treasury yield curve.

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| | | |
|:---|:---|:---|
| **At September 30, 2024** | **At September 30, 2024** | **At September 30, 2024** |
| **Change in Interest Rates**<br>**(basis points) (1)** | <br>**NII Year 1 Forecast** | <br>**Year 1 Change from Level** |
| **(Dollars in thousands)** | **(Dollars in thousands)** | **(Dollars in thousands)** |
| +300 | $7370 | (0.34)% |
| +200 | 7392 | (0.04)% |
| +100 | 7389 | (0.09)% |
| Level | 7395 |  |
| (100) | 7362 | (0.45)% |
| (200) | 7328 | (0.91)% |
| (300) | 7291 | (1.41)% |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Assumes an instantaneous uniform change in interest rates at all maturities.

The table above indicates that at September 30, 2025, we would have experienced a 0.04% decrease in NII in the event of an instantaneous parallel 200 basis point increase in market interest rates and a 0.91% decrease in NII in the event of an instantaneous 200 basis point decrease in market interest rates. As of September 30, 2024, we would have experienced a 1.26% decrease in NII in the event of an instantaneous parallel 200 basis point increase in market interest rates and a 0.40% decrease in NII in the event of an instantaneous 200 basis point decrease in market interest rates.

Certain shortcomings are inherent in the methodologies used in the above interest rate risk measurement. Modeling changes in EVE and NII require making certain assumptions that may or may not reflect the manner in which actual yields and costs respond to changes in market interest rates. For instance, the EVE and NII tables presented above assume that the composition of our interest-sensitive assets and liabilities existing at the beginning of a period remains constant over the period being measured and assumes that a particular change in interest rates is reflected uniformly across the yield curve regardless of the duration or repricing of specific assets and liabilities. However, the shape of the yield curve changes constantly and the value and pricing of our assets and liabilities, including our deposits, may not closely correlate with changes in market interest rates. Accordingly, although the EVE and NII tables may provide an indication of our interest rate risk exposure at a particular point in time and in the context of a particular yield curve, such measurements are not intended to and do not provide a precise forecast of the effect of changes in market interest rates on EVE and NII and will differ from actual results.

EVE and NII calculations also may not reflect the fair values of financial instruments. For example, decreases in market interest rates can increase the fair values of our loans, deposits and borrowings.

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#### Liquidity and Capital Resources
Liquidity describes our ability to meet the financial obligations that arise in the ordinary course of business. Liquidity is primarily needed to meet the borrowing and deposit withdrawal requirements of our customers and to fund current and planned expenditures. Our primary sources of funds are deposits, principal and interest payments on loans and securities, and proceeds from maturities of securities. We also have the ability to borrow from the Federal Home Loan Bank of Cincinnati. At September 30, 2025, we had $6.0 million of outstanding borrowings from the Federal Home Loan Bank of Cincinnati. At September 30, 2025, we had the capacity to borrow $41.3 million from the Federal Home Loan Bank of Cincinnati. At September 30, 2025 and 2024, the Bank had a cash management line of credit agreement with the Federal Home Loan Bank providing for additional borrowing capacity of $11.0 million. The Bank had $2.0 million drawn on this line at September 30, 2025 and $7.0 million drawn on this line at September 30, 2024.

While maturities and scheduled amortization of loans and securities are predictable sources of funds, deposit flows and loan prepayments are greatly influenced by general interest rates, economic conditions, and competition. Our most liquid assets are cash and short-term investments. The levels of these assets are dependent on our operating, financing, lending, and investing activities during any given period.

Our cash flows are comprised of three primary classifications: cash flows from operating activities, cash flows from investing activities, and cash flows from financing activities. For further information, see the statements of cash flows contained in the financial statements beginning on page F-1 of this Annual Report on Form 10-K.

We are committed to maintaining a strong liquidity position. We monitor our liquidity position on a daily basis. We anticipate that we will have sufficient funds to meet our current funding commitments. Based on our deposit retention experience and current pricing strategy, we anticipate that a significant portion of maturing time deposits will be retained.

At September 30, 2025, Mercer Savings Bank exceeded all regulatory capital levels required to be considered "well capitalized." For further information, see Note 10 of the notes to the financial statements beginning on page F-1 of this Annual Report on Form 10-K.

***Off-Balance Sheet Arrangements.*** At September 30, 2025, we had $9.6 million of outstanding commitments to originate loans, $1.1 million of which represents the balance of remaining funds to be disbursed on construction loans in process. Certificates of deposit that are scheduled to mature in less than one year from September 30, 2025 totaled $38.0 million at September 30, 2025. Management expects that a substantial portion of the maturing certificates of deposit will be renewed. However, if a substantial portion of these deposits is not retained, we may utilize Federal Home Loan Bank of Cincinnati advances or raise interest rates on deposits to attract new accounts, which may result in higher levels of interest expense.

#### Recent Accounting Pronouncements
For a discussion of the impact of recent accounting pronouncements, see Note 2 of the notes to our financial statements beginning on page F-1 of this Annual Report on Form 10-K.

#### Impact of Inflation and Changing Prices
The financial statements and related data presented in this Annual Report on Form 10-K have been prepared according to GAAP which require the measurement of financial position and operating results in terms of historical dollars without considering changes in the relative purchasing power of money over time due to inflation. The primary impact of inflation on our operations is reflected in increased operating costs. Unlike most industrial companies, virtually all of the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates, generally, have a more significant impact on a financial institution's performance than does inflation. Interest rates do not necessarily move in the same direction or to the same extent as the prices of goods and services.

[**Table of Contents**](#TOC)

#### Item 7A. Quantitative and Qualitative Disclosures About Market Risk
For information regarding market risk, see "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operation—Management of Market Risk."

#### Item 8. Financial Statements and Supplementary Data

#### Financial statements are included beginning on page F-1 of this Annual Report on Form 10-K.

#### Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure
Not applicable.

#### Item 9A. Controls and Procedures
***Disclosure Controls and Procedures***

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of September 30, 2025. The term "disclosure controls and procedures," under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to our management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Based upon that evaluation, the principal executive officer and principal financial officer concluded that, as of September 30, 2025, our disclosure controls and procedures were effective.

***Management's Annual Report on Internal Control over Financial Reporting***

Our management is responsible for establishing and maintaining effective internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f).

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we evaluated the effectiveness of our internal control over financial reporting based on criteria established in "Internal Control — Integrated Framework (2013)" issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this assessment, management, including our principal executive officer and principal financial officer, concluded that our internal control over financial reporting was effective and met the criteria of the "Internal Control — Integrated Framework (2013)" as of September 30, 2025.

This Annual Report does not include an attestation report regarding internal controls over financial reporting of the independent registered public accounting firm because the Company is an emerging growth company.

***Changes in Internal Controls Over Financial Reporting***

During the year ended September 30, 2025, there have been no changes in the Company's internal controls over financial reporting that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

[**Table of Contents**](#TOC)

#### Item 9B. Other Information
During the three months ended September 30, 2025, none of the Company's directors or executive officers adopted or terminated any contract, instruction or written plan for the purchase or sale of the Company's securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any "non-Rule 10b5-1 trading arrangement," as that term is used in SEC regulations.

**Item 9C. Disclosure Regarding Foreign Jurisdiction that Prevents Inspections**

#### Not applicable.

[**Table of Contents**](#TOC)

#### PART III

#### Item 10. Directors, Executive Officers and Corporate Governance
Information relating to the directors and officers of the Company, the Company's insider trading policy, information regarding compliance with Section 16(a) of the Exchange Act, and information regarding the committees of the Company's Board of Directors is incorporated herein by reference to the Company's Definitive Proxy Statement for the 2025 Annual Meeting of Stockholders (the "Proxy Statement") under the caption "Proposal I—Election of Directors."

The Company has adopted a Code of Ethics that applies to its principal executive officer, the principal financial officer and principal accounting officer. The Code of Ethics is posted on the Investor Relations section of our website.

#### Item 11. Executive Compensation
Information regarding executive compensation, compensation committee interlocks and insider participation is incorporated herein by reference to the Proxy Statement under the captions "Executive Compensation."

#### Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
***Securities Authorized for Issuance under Stock-Based Compensation Plans***

Set forth below is information as of September 30, 2025 with respect to compensation plans (other than our Employee Stock Ownership Plan) under which Company equity securities are authorized for issuance. Other than our Employee Stock Ownership Plan, we do not have any equity compensation plans that were not approved by our stockholders. Equity compensation plans approved by stockholders consist of the Mercer Bancorp, Inc. 2025 Equity Incentive Plan.

***Security Ownership of Certain Beneficial Owners and Management***

Information required by this item is incorporated herein by reference to the section captioned "Voting Securities and Principal Holders" in the Proxy Statement.

***Changes in Control***

Management of the Company knows of no arrangements, including any pledge by any person or securities of the Company, the operation of which may at a subsequent date result in a change in control of the registrant.

#### Item 13. Certain Relationships and Related Transactions, and Director Independence
The information relating to certain relationships and related transactions and director independence is incorporated herein by reference to the Proxy Statement under the captions "Transactions with Certain Related Persons" and "Proposal I — Election of Directors."

#### Item 14. Principal Accounting Fees and Services
The information relating to the principal accounting fees and expenses is incorporated herein by reference to the Proxy Statement under the captions "Proposal II—Ratification of Appointment of Independent Registered Public Accounting Firm."

[**Table of Contents**](#TOC)

#### PART IV

#### Item 15. Exhibits, Financial Statement Schedules
(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial Statements and Schedules:

---

| |
|:---|
| Report of Independent Registered Public Accounting Firm |
| Consolidated Balance Sheets at September 30, 2025 and 2024 |
| Consolidated Statements of Income for the Years Ended September 30, 2025 and 2024 |
| Consolidated Statements of Comprehensive Income for the Years Ended September 30, 2025 and 2024 |
| Consolidated Statements of Changes in Shareholders' Equity for the Years Ended September 30, 2025 and 2024 |
| Consolidated Statements of Cash Flows for the Years Ended September 30, 2025 and 2024 |
| Notes to Consolidated Financial Statements. |

---

The Consolidated Financial Statements of Mercer Bancorp, Inc. and Subsidiary beginning on page F-1 of this Annual Report on Form 10-K for the year ended September 30, 2025 are incorporated herein by reference.

All financial statement schedules are omitted because they are either inapplicable or not required, or because the required information is included in the Consolidated Financial Statements or notes thereto contained in this Annual Report on Form 10-K.

(b) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exhibits

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.1 | [Articles of Incorporation of Mercer Bancorp, Inc. (incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex3-1.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.2 | [Amended and Restated Bylaws of Mercer Bancorp, Inc. (incorporated by reference to Exhibit 3.2 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on January 17, 2024)](https://www.sec.gov/Archives/edgar/data/1967306/000110465924004477/tm243208d1_ex3-2.htm)  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.1 | [Form of Common Stock Certificate of Mercer Bancorp, Inc. (incorporated by reference to Exhibit 4 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex4.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.2 | [Description of Mercer Bancorp, Inc. Securities (incorporated by reference to Exhibit 4.2 to the Annual Report on Form 10-K (file no. 000-56575), originally filed with the Securities ad Exchange Commission on December 29, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000155837023020031/tmb-20230930xex4d2.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.1 | [Employment Agreement between Mercer Savings Bank and Alvin B. Parmiter (incorporated by reference to Exhibit 10.1 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex10-1.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.2 | [Director Retirement Agreement between Mercer Savings Bank and Kristin M. Fee (incorporated by reference to Exhibit 10.2 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex10-2.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.3 | [Director Retirement Agreement between Mercer Savings Bank and David L. Keiser (incorporated by reference to Exhibit 10.3 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex10-3.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.4 | [Director Retirement Agreement between Mercer Savings Bank and Richard A. Mosier (incorporated by reference to Exhibit 10.4 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex10-4.htm) |

---

[**Table of Contents**](#TOC)

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.5 | [First Amendment to the Director Agreement between Mercer Savings Bank and Richard A. Mosier (incorporated by reference to Exhibit 10.5 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex10-5.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.6 | [Amendment to Director Retirement Agreement between Mercer Savings Bank and Kristin M. Fee (incorporated by reference to Exhibit 10.6 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex10-6.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.7 | [Amendment to Director Retirement Agreement between Mercer Savings Bank and David L. Keiser (incorporated by reference to Exhibit 10.7 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923049449/tm238570d2_ex10-7.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.8 | [Mercer Savings Bank Employee Stock Ownership Plan (incorporated by reference to Exhibit 10.8 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923049449/tm238570d2_ex10-8.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.9 | [Employment Agreement, dated as of January 1, 2021, by and between Mercer Savings Bank and Timothy L. Bigham (incorporated by reference to Exhibit 10.9 to the Annual Report on Form 10-K (file no. 000-56575), originally filed with the Securities and Exchange Commission on December 29, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000155837023020031/tmb-20230930xex10d9.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16 | [Letter of S.R. Snodgrass P.C. regarding change in accountants (incorporated by reference to Exhibit 16.1 to the Current Report on Form 8-K (file no. 000-56575), originally filed with the Securities and Exchange Commission on June 20, 2025)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex16-2.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19 | [Mercer Bancorp, Inc. Policy Regarding Insider Trading (incorporated by reference to Exhibit 19 to the Annual Report on Form 10-K (file no. 000-56575), originally filed with the Securities and Exchange Commission on January 1, 2024)](https://www.sec.gov/Archives/edgar/data/1967306/000155837025000202/tmb-20240930xex19.htm)<br>|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;21 | [Subsidiaries of Mercer Bancorp, Inc. (incorporated by reference to Exhibit 21 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)](https://www.sec.gov/Archives/edgar/data/1967306/000110465923031020/tm238570d1_ex21.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;23 | [Consent of Consent of Clark, Schaefer, Hackett & Co.](tmb-20250930xex23.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;23.1 | [Consent of Consent of S.R. Snodgrass, P.C.](tmb-20250930xex23d1.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;31.1 | [Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](tmb-20250930xex31d1.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;31.2 | [Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](tmb-20250930xex31d2.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;32 | [Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](tmb-20250930xex32.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;101 | The following materials for the year ended September 30, 2025, formatted in Inline XBRL (Extensible Business Reporting Language): (i) Balance Sheets, (ii) Statements of Income, (iii) Statements of Comprehensive Income (Loss), (iv) Statements of Changes in Equity, (v) Statements of Cash Flows, and (vi) Notes to Financial Statements |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;104 | Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101) |

---

#### Item 16. Form 10-K Summary
None.

[**Table of Contents**](#TOC)

**INDEX TO FINANCIAL STATEMENTS**

#### Contents

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;[**Report of Independent Registered Public Accounting Firms**](#REPORTOFINDEPENDENTREGISTEREDPUBLICACCOU) | F-2 thru F-4 |
| **Consolidated Financial Statements** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;[Balance Sheets](#BalanceSheets_903510) | F-5 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Statements of Income](#StatementsofIncome_968861) | F-6 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Statements of Comprehensive Income](#StatementsofComprehensiveIncomeLoss_7418) | F-7 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Statements of Changes in Shareholders' Equity](#StatementsofChangesinEquity_175834) | F-8 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Statements of Cash Flows](#StatementsofCashFlows_980565) | F-9 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Notes to Financial Statements](#Note1NatureofOperationsandSummaryofSigni) | F-10 |

---

[**Table of Contents**](#TOC)

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of Mercer Bancorp, Inc.

Celina, Ohio

**Opinion on the Financial Statements**

We have audited the accompanying consolidated balance sheet of Mercer Bancorp, Inc. and subsidiary (the Company) as of September 30, 2025 and the related consolidated statements of income, comprehensive income, changes in shareholders' equity, and cash flows for the year then ended, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of September 30, 2025, and the results of its operations and its cash flows for the year then ended, in conformity with accounting principles generally accepted in the United States of America.

**Basis for Opinion**

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

**Prior Period Financial Statements**

The financial statements of Mercer Bancorp, Inc. as of September 30, 2024 were audited by other auditors who's report dated January 14, 2025 expressed an unmodified opinion on those statements.

**Critical Audit Matters**

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

[**Table of Contents**](#TOC)

**Allowance for Credit Losses on Collectively Evaluated Loans – Qualitative Adjustments - Refer to Notes 1 and 5 to the financial statements**

**Critical Audit Matter Description**

Management's estimate of the allowance for credit losses (ACL), includes a reserve on collectively evaluated loans. The reserve on collectively evaluated loans is based on historical loss rates adjusted for qualitative factors. Management's adjustment for qualitative factors include actual and expected changes in regional and local economic and business conditions and developments in which the Company operates that affect the collectability of financial assets; the effect of other external factors such as the regulatory, legal and technological environments, competition, and events such as natural disasters or pandemics; and model risk including statistical risk, reversion risk, timing risk, and model limitation risk.

Significant judgment was required by management in the selection and application of key metrics used to derive the quantitative portion of the ACL. Accordingly, performing audit procedures to evaluate the Company's estimated ACL involved a high degree of auditor judgment and required significant effort.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the Company's estimate of the ACL included, but were not limited to, the following:

● We tested the process for determining reserves on collectively evaluated loans including:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Evaluation of the appropriateness of management's methodology.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Testing the completeness and accuracy of data utilized by management.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Evaluation of the relevance and reliability of information used by management in the development of the estimate.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Evaluation of reasonableness of significant assumptions used in the qualitative analysis.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o We discussed the calculation and assumptions with the third party vendor and evaluated reasonableness of assumptions and recalculated amounts for accuracy.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Evaluation of the reasonableness of qualitative adjustment factors, including consideration of whether the adjustments applied were reasonable given portfolio composition; relevant external factors, including economic conditions; and consideration of historical or recent experience and conditions and events affecting the Company.

---

| |
|:---|
| &nbsp;&nbsp;/s/ Clark, Schafer, Hackett & Co. |
| &nbsp;&nbsp;We have served as the Company's auditor since 2025. |
| &nbsp;&nbsp;Cincinnati, Ohio |
| &nbsp;&nbsp;December 19, 2025 |

---

[**Table of Contents**](#TOC)

![Graphic](tmb-20250930x10k010.jpg)

#### REPORT OF INDEPENDEN T REGISTERED PUBLIC ACCOUNTING FIRM

#### To the Shareholders and the Board of Directors of Mercer Bancorp, Inc.
**Opinion on the Financial Statements**

We have audited the accompanying consolidated balance sheets of Mercer Bancorp, Inc. and subsidiary (the "Company") as of September 30, 2024; the related consolidated statements of income, comprehensive income, changes in shareholders' equity, and cash flows for the year then ended; and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of September 30, 2024, and the results of its operations and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

**Basis for Opinion**

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent, with respect to the Company, in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

We have served as the Company's auditor since 2023.

![Graphic](tmb-20250930x10k011.jpg)

Cranberry Township, Pennsylvania

January 14, 2025

---

| | | | |
|:---|:---|:---|:---|
| PITTSBURGH, PA | PHILADELPHIA, PA | WHEELING, WV | STEUBENVILLE, OH |
| 2009 Mackenzie Way • Suite 340<br>Cranberry Township, PA 16066<br>(724) 934-0344 | 161 Washington Street • Suite 200<br>Conshohocken, PA 19428<br>(610) 278-9800 | 980 National Road<br>Wheeling, WV 26003<br>(304) 233-5030 | 511 N. Fourth Street<br>Steubenville, OH 43952<br>(304) 233-5030 |
| S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia | S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia | S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia | S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Consolidated Balance Sheets**

**September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| **Assets** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash and due from banks | $2576165 | $2303569 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest-bearing deposits in other financial institutions | 713022 | 2435027 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Federal funds sold | 2074000 | 1159000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | 5363187 | 5897596 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest-bearing time deposits | 100000 | 100000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Available-for-sale securities | 9656114 | 11121278 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Held-to-maturity securities | 67723 | 92840 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loans held for sale | 8051398 | 10538902 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loans receivable | 143257565 | 146041635 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Allowance for credit losses | (960307) | (963268) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net loans | 142297258 | 145078367 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Premises and equipment | 5151721 | 2731333 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Federal Home Loan Bank stock | 1208100 | 1872500 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bank owned life insurance | 1876454 | 1829180 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | 678357 | 685515 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Federal Home Loan Bank lender risk account | 434749 | 463873 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred federal income taxes | 233548 | 283564 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets | 1053048 | 1053268 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total assets | $176171657 | $181748216 |
| **Liabilities and Shareholders' Equity** |  |  |
| &nbsp;&nbsp;&nbsp;**Liabilities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deposits |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Demand - non interest bearing | $14720941 | $55139738 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Demand - interest bearing | 43738535 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Savings and money market | 35242936 | 36559264 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Time | 50285617 | 42857955 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total deposits | 143988029 | 134556957 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Advances from the Federal Home Loan Bank | 6000000 | 22000000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Directors plan liability | 370729 | 409033 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued interest payable and other liabilities | 1189561 | 829193 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities | 151548319 | 157795183 |
| &nbsp;&nbsp;&nbsp;**Commitments and Contingencies** |  |  |
| &nbsp;&nbsp;&nbsp;**Shareholders' Equity** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Preferred stock - authorized 1,000,000 shares of $0.01 par value, none issued  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock - authorized 9,000,000 shares of $0.01 par value, issued and outstanding 1,027,477 and 1,022,970 shares  | 9959 | 10229 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at September 30, 2025 and 2024, respectively |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Additional paid-in capital | 8368876 | 8658653 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shares acquired by ESOP | (709269) | (763820) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shares issued to irrevocable trust | 96360 | 96360 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shares held in irrevocable trust | (96360) | (96360) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retained earnings | 17343618 | 16371313 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated other comprehensive loss | (389846) | (323342) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total shareholders' equity | 24623338 | 23953033 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities and shareholders' equity | $176171657 | $181748216 |

---

*See Notes to Consolidated Financial Statements*

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Consolidated Statements of Income**

**For the Years Ended September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **Year Ended** | **Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| **Interest Income** |  |  |
| &nbsp;&nbsp;&nbsp;Loans | $8808611 | $7591345 |
| &nbsp;&nbsp;&nbsp;Investment securities | 337029 | 313957 |
| &nbsp;&nbsp;&nbsp;Interest-bearing deposits and other | 289417 | 342249 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total interest income | 9435057 | 8247551 |
| **Interest Expense** |  |  |
| &nbsp;&nbsp;&nbsp;Deposits | 1845588 | 1733492 |
| &nbsp;&nbsp;&nbsp;Federal Home Loan Bank advances | 791657 | 800582 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total interest expense | 2637245 | 2534074 |
| **Net Interest Income** | 6797812 | 5713477 |
| **Provision for Credit Losses** | 66000 | 68000 |
| **Net Interest Income After Provision for Credit Losses** | 6731812 | 5645477 |
| **Noninterest Income** |  |  |
| &nbsp;&nbsp;&nbsp;Service fees on deposits | 227822 | 325059 |
| &nbsp;&nbsp;&nbsp;Late charges and fees on loans | 123711 | 208779 |
| &nbsp;&nbsp;&nbsp;Gain on sale of loans | 26924 |  |
| &nbsp;&nbsp;&nbsp;Loan servicing fees | 35110 | 38590 |
| &nbsp;&nbsp;&nbsp;Gain on sale of investments |  | 4311 |
| &nbsp;&nbsp;&nbsp;Gain on sale of foreclosed real estate | 6982 | 26328 |
| &nbsp;&nbsp;&nbsp;Bank owned life insurance | 47274 | 63699 |
| &nbsp;&nbsp;&nbsp;Other income | 37021 | 179157 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total noninterest income | 504844 | 845923 |
| **Noninterest Expense** |  |  |
| &nbsp;&nbsp;&nbsp;Salaries and employee benefits | 2703854 | 2514918 |
| &nbsp;&nbsp;&nbsp;Directors fees | 84000 | 81425 |
| &nbsp;&nbsp;&nbsp;Occupancy and equipment | 556300 | 506096 |
| &nbsp;&nbsp;&nbsp;Data processing fees | 856108 | 645730 |
| &nbsp;&nbsp;&nbsp;Franchise taxes | 140691 | 134175 |
| &nbsp;&nbsp;&nbsp;FDIC insurance premiums | 80978 | 73925 |
| &nbsp;&nbsp;&nbsp;Professional services | 535051 | 507273 |
| &nbsp;&nbsp;&nbsp;Deposit account services expense | 189431 | 277059 |
| &nbsp;&nbsp;&nbsp;Advertising | 93150 | 125618 |
| &nbsp;&nbsp;&nbsp;Loan expenses | 264580 | 288833 |
| &nbsp;&nbsp;&nbsp;Other | 504840 | 477941 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total noninterest expense | 6008983 | 5632993 |
| **Income before income taxes** | 1227673 | 858407 |
| **Provision for income taxes** | 255368 | 165670 |
| **Net Income** | $972305 | $692737 |
| **Earnings per share - basic** | $1.03 | $0.73 |
| **Earnings per share - diluted** | $1.02 | $0.73 |

---

*See Notes to Consolidated Financial Statements*

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Consolidated Statements of Comprehensive Income**

**For the Years Ended September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **Year Ended** | **Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Net income | $972305 | $692737 |
| Other comprehensive (loss) income: |  |  |
| &nbsp;&nbsp;Net unrealized (losses) gains on available-for-sale securities | (84181) | 684038 |
| &nbsp;&nbsp;Reclassification adjustment for realized loss on sales of securities |  | (4311) |
| &nbsp;&nbsp;Tax benefit (expense) | 17677 | (142743) |
| Other comprehensive (loss) income | (66504) | 536984 |
| Comprehensive income | $905801 | $1229721 |

---

*See Notes to Consolidated Financial Statements*

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Consolidated Statements of Changes in Shareholders' Equity**

**For the Years Ended September 30, 2025 and 2024**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **For the year ended**  | | | | | | | | |
| **September 30, 2025** | <br>**Common**<br>**Stock** | <br>**Additional**<br>**Paid-in**<br>**Capital** | <br>**Shares**<br>**Acquired by**<br>**ESOP** | <br>**Shares Issued**<br>**to Irrevocable** <br>**Trust** | <br>**Shares Held**<br>**to Irrevocable** <br>**Trust** | <br>**Retained**<br>**Earnings** | **Accumulated**<br>**Other**<br>**Comprehensive**<br>**Loss** | <br>**Total** |
| Balance at October 1, 2024 | $10229 | $8658653 | $(763820) | $96360 | $(96360) | $16371313 | $(323342) | $23953033 |
| Net income |  |  |  |  |  | 972305 |  | 972305 |
| Share based compensation |  | 81844 |  |  |  |  |  | 81844 |
| ESOP shares allocated to participants |  | 13987 | 54551 |  |  |  |  | 68538 |
| Repurchase of common stock, 26,997 shares | (270) | (385608) |  |  |  |  |  | (385878) |
| Other comprehensive loss |  |  |  |  |  |  | (66504) | (66504) |
| Balance at September 30, 2025 | $9959 | $8368876 | $(709269) | $96360 | $(96360) | $17343618 | $(389846) | $24623338 |
| **For the year ended**  |  |  |  |  |  |  |  |  |
| **September 30, 2024** |  |  |  |  |  |  |  |  |
| Balance at October 1, 2023 | $10229 | $8642312 | $(818380) | $96360 | $(96360) | $15703856 | $(860326) | $22677691 |
| Effect of adoption of ASU 2016-13 |  |  |  |  |  | (25280) |  | (25280) |
| Net income |  |  |  |  |  | 692737 |  | 692737 |
| ESOP shares allocated to participants |  | 16341 | 54560 |  |  |  |  | 70901 |
| Other comprehensive income |  |  |  |  |  |  | 536984 | 536984 |
| Balance at September 30, 2024 | $10229 | $8658653 | $(763820) | $96360 | $(96360) | $16371313 | $(323342) | $23953033 |

---

*See Notes to Consolidated Financial Statements*

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Consolidated Statements of Cash Flows**

**For the Years Ended September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **Year Ended** | **Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| **Operating Activities** |  |  |
| &nbsp;&nbsp;&nbsp;Net income | $972305 | $692737 |
| &nbsp;&nbsp;&nbsp;Items not requiring (providing) cash: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization | 399406 | 365793 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization of premiums and discounts | 10907 | 12001 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accretion of deferred loan fees | (87122) | (71413) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | 67392 | (12283) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provision for credit losses | 66000 | 68000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ESOP compensation expense | 77912 | 98708 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of loans | (26924) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Proceeds from sales of loans | 1979177 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loans originated for sale | (1965367) | (8425680) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of investment securities |  | (4311) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of foreclosed assets  | (6982) | (26328) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Increase in cash surrender value of bank-owned life insurance | (47274) | (63699) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share based compensation | 81844 |  |
| &nbsp;&nbsp;&nbsp;Changes in: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | 7158 | (228648) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets | 30494 | (203517) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other liabilities | 312690 | (329356) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by (used in) operating activities | 1871616 | (8127996) |
| **Investing Activities** |  |  |
| &nbsp;&nbsp;&nbsp;Purchase of interest-bearing deposits in banks | (100000) | (100000) |
| &nbsp;&nbsp;&nbsp;Proceeds from maturities of interest-bearing deposits in banks | 100000 | 100000 |
| &nbsp;&nbsp;&nbsp;Purchases of available-for-sale securities | (277432) | (2456102) |
| &nbsp;&nbsp;&nbsp;Proceeds from sales of available-for-sale securities |  | 887586 |
| &nbsp;&nbsp;&nbsp;Proceeds from calls, maturities and paydowns of available-for-sale securities | 1648135 | 2570414 |
| &nbsp;&nbsp;&nbsp;Principal repayments on securities held-to-maturity | 24490 | 53027 |
| &nbsp;&nbsp;&nbsp;Net change in loans | 5244776 | (14279116) |
| &nbsp;&nbsp;&nbsp;Purchase of premises and equipment | (2809888) | (485158) |
| &nbsp;&nbsp;&nbsp;Purchases of FHLB stock | (80100) | (1286700) |
| &nbsp;&nbsp;&nbsp;Proceeds from redemption of FHLB stock | 744500 | 783100 |
| &nbsp;&nbsp;&nbsp;Proceeds from sale of foreclosed assets | 54300 | 205996 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided (used in) investing activities | 4548781 | (14006953) |
| **Financing Activities** |  |  |
| &nbsp;&nbsp;&nbsp;Net increase in deposits | 9431072 | 11741209 |
| &nbsp;&nbsp;&nbsp;Proceeds from FHLB advances - short term | 75000000 | 148600000 |
| &nbsp;&nbsp;&nbsp;Repayment of FHLB advances - short term | (91000000) | (138600000) |
| &nbsp;&nbsp;&nbsp;Repurchase of common stock | (385878) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash (used in) provided by financing activities | (6954806) | 21741209 |
| **Decrease in Cash and Cash Equivalents** | (534409) | (393740) |
| **Cash and Cash Equivalents, Beginning of Year** | 5897596 | 6291336 |
| **Cash and Cash Equivalents, End of Year** | $5363187 | $5897596 |
| **Supplemental Disclosure of Cash Flow Information** |  |  |
| &nbsp;&nbsp;&nbsp;Cash paid during the year for: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest on deposits and borrowings | $2475012 | $2446502 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income taxes | 300000 | 400500 |
| **Supplemental Disclosure of Noncash Investing Activities** |  |  |
| &nbsp;&nbsp;&nbsp; Transfers from loans to foreclosed assets | $58073 | $125668 |

---

*See Notes to Consolidated Financial Statements*

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Note 1:&nbsp;&nbsp;&nbsp;&nbsp;Nature of Operations and Summary of Significant Accounting Policies

#### Nature of Operations
Mercer Bancorp, Inc. ("Mercer Bancorp" or the "Company") is a Maryland corporation incorporated on March 7, 2023, to serve as the bank holding company for Mercer Savings Bank ("Mercer Savings" or the "Bank") in connection with the Bank's conversion from the mutual form of organization to the stock form of organization (the "Conversion"). The Conversion was completed on July 26, 2023. In connection with the Conversion, Mercer Bancorp acquired 100% ownership of Mercer Savings and the Company offered and sold 972,970 shares of its common stock at $10.00 per share, for gross offering proceeds of $9,729,700. The Company also contributed 50,000 shares of common stock and $100,000 in cash to Mercer Savings Charitable Foundation, Inc.

Mercer Savings is an Ohio chartered stock bank engaged primarily in the business of providing a variety of deposit and lending services to individual customers in western Ohio. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential and commercial mortgage, commercial, home equity lines of credit and installment loans. Its operations are conducted through its five office locations in Celina, Fort Recovery and Greenville, Ohio, Berne, Indiana. and its mobile branch, which offers services in eastern Indiana. The Bank faces competition from other financial institutions and is subject to the regulation of certain federal and state agencies and undergoes periodic examinations by those regulatory authorities.

#### Principles of Consolidation
The consolidated financial statements include the accounts of Mercer Bancorp and its wholly-owned subsidiary, Mercer Savings. All intercompany transactions and balances have been eliminated in consolidation.

#### Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, valuation of mortgage servicing rights and deferred tax assets and fair values of financial instruments.

#### Cash Equivalents
The Company considers all liquid investments with original maturities of three months or less to be cash equivalents. At September 30, 2025 and 2024, none of the Company's cash accounts at nonfederal government or nongovernmental agencies exceeded FDIC insurance limits. In March 2020, the Federal Reserve's board of directors approved reducing the required reserve requirement ratios to zero percent, effectively eliminating the requirement to maintain reserve balances in cash or on deposit with the Federal Reserve Bank. This reduction in the required reserves does not have a defined timeframe and may be revised by the Federal Reserve's board in the future.

#### Interest-bearing Time Deposits in Banks
Interest-bearing time deposits have original maturities greater than one year at origination and are carried at cost.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Debt Securities
Debt securities held by the Company generally are classified and recorded in the financial statements as follows:

---

| | | |
|:---|:---|:---|
| **Classified as** | **Description** | **Recorded at** |
| Held to maturity ("HTM")  | Certain debt securities that management has the positive intent and ability to hold to maturity | Amortized cost, net of allowance for credit losses  |
| Trading  | Securities that are bought and held principally for the purpose of selling in the near term and, therefore, held for only a short period of time | Fair value, with changes in fair value included in earnings  |
| Available for sale ("AFS")  | Securities not classified as HTM or trading  | Fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income |

---

The Company had no securities classified as trading at September 30, 2025 and 2024.

Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities, identified as the call date as to premiums and maturity date as to discounts. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.

#### Loans Held for Sale
Mortgage and indirect auto loans originated and intended for sale in the secondary market are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to noninterest income. Gains and losses on loan sales are recorded in noninterest income, and direct loan origination costs and fees are deferred at origination of the loan and are recognized in noninterest income upon sale of the loan.

#### Lender Risk Account (LRA)
The Federal Home Loan Bank (FHLB) requires institutions participating in its mortgage loan sales program to place a portion of the sale proceeds in a lender risk account. The LRA is maintained to offset any credit losses associated with loans sold to the FHLB by the participating institution as well as losses experienced by the overall loan pool should an individual institution's LRA be fully exhausted. The loan sale agreements provide for the FHLB to begin distributions of the LRA funds to the Company after loan pools have had five years of payment history. After five years, the required LRA balance is recalculated at least annually and excess amounts are returned to the participating institutions.

#### Loans
Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances, adjusted for unearned income, charge-offs, the allowance for credit losses and any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.

For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

yield adjustment over the respective term of the loan. For all loan portfolio segments, the Bank promptly charges off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower's ability to adequately meet its obligations. For loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.

The Company recognizes a loan charge-off, or portion thereof, when management reasonably determines the amount of the loss. The Company adheres to delinquency thresholds established by applicable regulatory guidance to determine the charge-off timeframe for these loans. Loans over 90 days delinquent for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.

For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Nonaccrual loans are returned to accrual status when, in the opinion of management, the financial position of the borrower indicates there is no longer any reasonable doubt as to the timely collection of interest or principal. The Company requires a period of satisfactory performance of not less than six months before returning a nonaccrual loan to accrual status.

When cash payments are received on collateral dependent loans, the Company records the payment as interest income unless collection of the remaining recorded principal amount is doubtful, at which time payments are used to reduce the principal balance of the loan. Loans modified due to financial difficulties of the borrower recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least nine months.

#### Allowance for Credit Losses
Available-for-sale securities

For available for sale securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security's amortized cost basis is written down to fair value through income.

For securities available-for-sale that do not meet the above criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, the Company considers the extent to which fair value is less than amortized cost and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of the cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income, net of tax. The Company elected the practical expedient of zero loss estimates for securities issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on available-for-sale securities at September 30, 2025 and 2024.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

Accrued interest receivable on available-for-sale debt securities totaled $86,443 and $151,047 at September 30, 2025 and 2024, respectively, and is included within accrued interest receivable on the balance sheet. This amount is excluded from the estimate of expected credit losses. Available-for-sale debt securities are typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest. When available-for-sale debt securities are placed on nonaccrual status, unpaid interest credited to income is reversed. The Company had no held-to-maturity debt securities classified as nonaccrual at September 30, 2025 and 2024.

Held-to-Maturity Securities

The Company measures expected credit losses on held-to-maturity debt securities, which are comprised of U.S. government sponsored enterprise mortgage-back securities and residential mortgage-backed securities. The Company's residential mortgage-backed security holdings are issued by U.S. government entities and agencies and are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on held-to-maturity securities at September 30, 2025 and 2024.

Accrued interest receivable on held-to-maturity debt securities totaled $334 and $464 at September 30, 2025 and 2024, respectively, and is included within accrued interest receivable on the balance sheet. This amount is excluded from the estimate of expected credit losses. Held-to-maturity debt securities are typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest. When held-to-maturity debt securities are placed on nonaccrual status, unpaid interest credited to income is reversed.

Loans

The allowance for credit losses (ACL) is a valuation allowance that is deducted from the loans' amortized cost basis to present the net amount expected to be collected on the loans. Loan losses are charged against the allowance when management believes the collectability of a loan balance is doubtful. Subsequent recoveries, if any, are credited to the allowance. Management's determination of the adequacy of the ACL is based on the assessment of the expected credit losses on loans over the expected life of the loan. The ACL is increased by provision expense and decreased by charge-offs, net of recoveries of amounts previously charged off and expected to be charged off. The Company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses.

Management estimates the ACL balance using relevant available information from both internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience of a defined peer group, by affiliate, paired with economic forecasts provide the basis for the quantitatively modeled estimates of expected credit losses. The Company adjusts its quantitative model, as necessary, to reflect conditions not already considered by the quantitative model. These adjustments are commonly known as the qualitative factors.

Qualitative factors include analysis of delinquency trends for the state of Ohio as compared to internal levels, charge-off and recovery trends for the company, trends in the volume of loan production and the related changes in portfolio mix, changes in underwriting standards, policies, procedures, or practices, as well as national and local economic trends related to unemployment and housing starts.

The ACL is measured on a collective (pool) basis when similar risk characteristics exist. The Company uses the average historical loss method to measure the quantitative portion of the ACL over the forecast and reversion periods.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. The Company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses.

Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a loan modification will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company.

Accrued interest receivable on loans totaled $560,972 and $489,780 at September 30, 2025 and 2024, respectively, and is included within accrued interest receivable on the balance sheet. This amount is excluded from the estimate of expected credit losses. For credits where the borrower has demonstrated a renewed willingness and ability to repay a modification of the existing loan may be used to help borrowers overcome temporary financial difficulties.

In the course of working with borrowers, the Bank may choose to restructure the contractual terms of certain loans. Terms may be modified to fit the ability of the borrower to repay in line with the borrower's current financial status, and the modification of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms or a combination of the two. If such efforts by the Bank do not result in a satisfactory arrangement, the loan is referred to legal counsel, at which time foreclosure proceedings are initiated. At any time prior to a sale of the property at foreclosure, the Bank may terminate foreclosure proceedings if the borrower is able to work out a satisfactory payment plan.

It is the Bank's policy that any loans modified for borrowers experiencing financial difficulty on nonaccrual status prior to being modified remain on nonaccrual status until nine months of satisfactory borrower performance, at which time management would consider its return to accrual status. If a loan was accruing at the time of restructuring, the Bank reviews the loan to determine if it is appropriate to continue the accrual of interest on the restructured loan.

Unfunded Commitments

The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL on unfunded commitments is adjusted through the provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life consistent with the related ACL methodology. The ACL on unfunded commitments is recorded in other liabilities on the balance sheet and is immaterial to the financial statements.

#### Transfers of Financial Assets
Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before maturity.

#### Premises and Equipment
Depreciable assets are stated at cost less accumulated depreciation. Depreciation is charged to expense using the straight-line method over the estimated useful lives of the assets. The estimated useful lives of depreciable assets are as

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

follows: building and improvements are 5-40 years; furniture and fixtures are 5-10 years; information technology-related equipment is 3-5 years.

#### Servicing Assets
When mortgage loans are sold with servicing retained, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing assets are included in other assets on the consolidated balance sheets.

Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. No changes in valuation allowances have been reported on the income statements. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses.

Servicing fee income, which is reported on the consolidated income statement as other noninterest income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income.

#### Federal Home Loan Bank Stock
Federal Home Loan Bank ("FHLB") stock is a required investment for institutions that are members of the FHLB system and the transfer of the stock is substantially restricted. The required investment in the common stock is based on a predetermined formula. FHLB stock is carried at cost. FHLB stock is evaluated for impairment on an annual basis. The Bank's investment in FHLB stock was not impaired at September 30, 2025 and 2024.

#### Bank Owned Life Insurance
The Bank has purchased life insurance on directors. Bank owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.

#### Foreclosed Assets Held for Sale
Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value less cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in net income or expense from foreclosed assets.

At September 30, 2025 and 2024, the Bank had no foreclosed residential real estate properties.

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

At September 30, 2025 and 2024, the Bank had no consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process.

#### Income Taxes
The Company accounts for income taxes in accordance with income tax accounting guidance (Accounting Standards Codification ("ASC") 740, *Income Taxes*). The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax basis of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur.

Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized.

Tax positions are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information.

The determination of whether or not a tax position has met the more-likely-than-not recognition threshold considers the facts, circumstances and information available at the reporting date and is subject to management's judgment.

If necessary, the Company recognizes interest and penalties on income taxes as a component of income tax expense.

With a few exceptions, the Company is no longer subject to examination by tax authorities for calendar years before 2022. As of September 30, 2025 and 2024, the Company had no material uncertain income tax positions.

#### Employee Stock Ownership Plan (ESOP)
The cost of shares issued to the Employee Stock Ownership Plan ("ESOP"), but not yet allocated to participants, is shown as a reduction of shareholders' equity. Compensation expense is based on the average fair value of shares as they are committed to be released to participant accounts.

#### Earnings Per Share
Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the year. Unallocated common shares held by the ESOP are shown as a reduction in shareholders' equity and are excluded from weighted-average common shares outstanding for both basic and diluted earnings per share calculations until they are committed to be released.

Diluted earnings per share is adjusted for the dilutive effects of stock-based compensation and is calculated using the two-class method or the treasury stock method. The diluted average number of common shares outstanding has been increased for the assumed exercise of stock-based compensation with the proceeds used to purchase treasury shares at the average market price for the period.

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Comprehensive Income
Comprehensive income consists of net income and other comprehensive income (loss), net of applicable income taxes. Other comprehensive income (loss) includes unrealized gains (losses) on available-for-sale securities.

Accumulated other comprehensive loss consists solely of the cumulative unrealized gains and losses on available-for-sale securities, net of tax.

#### Revenue Recognition
The Company accounts for certain revenues in accordance with Accounting Standards Update ("ASU") 2014-09 *Revenue from Contracts with Customers* (ASC 606) and all subsequent ASUs that modified ASC 606. ASC 606 provides that an entity should recognize revenue to depict the transfer of promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Interest income, net securities gains (losses), gain on sale of loans and income from bank-owned life insurance are not included within the scope of ASC 606. For the revenue streams in the scope of ASC 606, service charges on deposits and electronic banking fees, there are no significant judgments related to the amount and timing of revenue recognition. All of the Company's in scope revenue from contracts with customers is recognized within other noninterest income.

*Deposit Services.* The Company generates revenues through fees charged to depositors related to deposit account maintenance fees, overdrafts, ATM fees, wire transfers and additional miscellaneous services provided at the request of the depositor.

For deposit-related services, revenue is recognized when performance obligations are satisfied, which is, generally, at a point in time.

*Loan Fees.* For loan related services, fee income is recorded as deferred revenue and amortized over the life of the loan.

***Stock Compensation Plans***

The Company accounts for stock compensation in accordance with accounting guidance set forth in Financial Accounting Standards Board ("FASB") ASC Topic 718, Compensation—Stock Compensation, which requires that compensation costs relating to share-based payment transactions be recognized in financial statements. The cost is measured based on the grant date fair value of the equity instruments issued. The stock compensation accounting guidance covers a wide range of share-based compensation arrangements including stock options, restricted share plans, performance-based awards, share appreciation rights, and employee share purchase plans.

The stock compensation accounting guidance requires that compensation costs for all stock awards be calculated and recognized over the directors or employees' service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. A Black-Scholes model is used to estimate the fair value of stock options. An option is considered to be forfeited, if the grant stock option were not exercised prior to vesting. At the date of grant, the Bank estimates the forfeiture rate as part of its initial determination of the fair-value of options granted and then adjusts forfeitures as they occur.

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Note 2:&nbsp;&nbsp;&nbsp;&nbsp;Recent Accounting Pronouncements
The FASB issued ASU No. 2016-13, *Financial Instruments—Credit Losses (Topic 326)*. The ASU introduced a new credit loss model, the current expected credit loss model ("CECL"), which requires earlier recognition of credit losses, while also providing additional transparency about credit risk.

**The CECL model utilizes a lifetime "expected credit loss" measurement objective for the recognition of credit losses for loans, held-to-maturity securities and other receivables at the time the financial asset is originated or acquired. The expected credit losses are adjusted each period for changes in expected lifetime credit losses. For available-for-sale securities where fair value is less than cost, credit-related impairment, if any, will be recognized in an allowance for credit losses and adjusted each period for changes in expected credit risk. This model replaces the existing impairment models, which generally require that a loss be incurred before it is recognized. The CECL model represents a significant change from existing practice and may result in material changes to the Company's accounting for financial instruments.** 

The Company adopted the new standard effective October 1, 2023, which resulted in a $32,000 increase to the allowance for credit losses on residential loans and a charge, net of tax, of $25,280 to retained earnings.

The Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07 *Segment Reporting (Topic 280)*– *Improvements to Reportable Segment Disclosures* in November 2023. The amendments in this Update improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The amendments in this Update primarily require that a public entity disclose, on an annual and interim basis, significant segment expenses that are regularly provided to the chief operating decision maker; require that a public entity disclose the title and position of the chief operating decision maker and an explanation of how the chief operating decision maker uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources; require that a public entity that has a single reportable segment provide all the disclosures required by the amendments in this Update and all existing segment disclosures in Topic 280. The amendments in this Update are effective for fiscal years beginning after December 15, 2023 (October 1, 2024 as to the Company), and interim periods within fiscal years beginning after December 15, 2024 (October 1, 2025 as to the Company). Early adoption is permitted. A public entity should apply the amendments in this Update retrospectively to all prior periods presented in the financial statements. Management adopted the Update as of September 30, 2025, as required, without material effect on the Company's financial position or results of operations.

In December 2023, the FASB issued ASU 2023-09 *"Income Taxes (Topic 740) - Improvements to Income Tax Disclosures."* The amendments in this Update require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income [or loss] by the applicable statutory income tax rate). The amendments also require disclosure of the amount of income taxes paid (net of refunds received) disaggregated by federal (national) and state jurisdictions. For public business entities, the amendments in this Update are effective for annual periods beginning after December 15, 2024 (October 1, 2025 as to the Company). Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The amendments in this Update should be applied on a prospective basis and retrospective application is permitted. Management does not expect adoption of the Update to have a material effect on the Company's financial position or results of operations.

In November 2024, the FASB issued ASU 2024-03 *Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)*. The amendments in this Update require disclosure, in the notes to financial statements, of specified information about certain costs and expenses. The amendments require that at each interim and annual reporting period (1) the Company disclose the amounts of (a) employee compensation, (c) depreciation, and (d) intangible asset amortization included in each relevant expense caption. A relevant expense caption

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

is an expense caption presented on the face of the income statement within continuing operations that contains any of the expense categories listed. (2) Include certain amounts that are already required to be disclosed under current generally accepted accounting principles (GAAP) in the same disclosure as the other disaggregation requirements. (3) Disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. (4) Disclose the total amount of selling expenses and, in annual reporting periods, the Company's definition of selling expenses. The amendments in this Update are effective for annual reporting periods beginning after December 15, 2026 (October 1, 2027 as to the Company), and interim reporting periods beginning after December 15, 2027 (October 1, 2028 as to the Company). Early adoption is permitted. The amendments in this Update should be applied either (1) prospectively to financial statements issued for reporting periods after the effective date of this Update or (2) retrospectively to any or all prior periods presented in the financial statements. Management is currently evaluating the Update and does not expect adoption of the Update to have a material effect on the Company's financial position or results of operations.

**Note 3: Segment Reporting**

The Company has one reportable operating segment, commercial banking. The Company's chief operating decision maker (CODM) is the President of the Company, who monitors revenue streams of our products and services. The identifiable segment operations are managed and financial performance is evaluated on a Company-wide basis. The commercial banking segment provides an array of financial products and services including commercial, agricultural, residential mortgage and consumer lending activities, along with commercial and consumer savings and banking services, to individual and business customers through its office locations in both Ohio and Indiana.

The accounting policies of the banking segment are described in management's discussion and analysis of financial condition and results of operations of the Company. The CODM assesses performance for the banking segment and decides how to allocate resources based on net income (reported on the consolidated statements of income). The measure of segment assets is reported on the consolidated balance sheets as total assets.

The CODM uses net income to evaluate income generated from segment assets (return on average assets) in deciding whether to reinvest profits into the commercial banking segment. Net income is also used by the CODM to monitor budget versus actual results. Net income as well as other common Company-wide financial performance and credit quality metrics, such as return on average assets, return on average equity, earnings per common share, net interest margin, operating efficiency and nonaccrual loans to total loans, among others, are used for competitive analysis by benchmarking to the Company's competitors as well as used in assessing the performance of the segment and for establishing management's compensation. Loans, investments and deposits provide revenue in the banking operation. Interest expense, provision for credit losses, salaries and employee benefits and data processing are the significant expense components in the banking operation.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Note 4:&nbsp;&nbsp;&nbsp;&nbsp;Debt Securities
The amortized cost and fair values, together with gross unrealized gains and losses of securities are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | <br>**Amortized**<br>**Cost** | **Gross**<br>**Unrealized**<br>**Gains** | **Gross**<br>**Unrealized**<br>**Losses** | <br>**Approximate**<br>**Fair Value** |
| **Available-for-sale Securities:** |  |  |  |  |
| &nbsp;&nbsp;**September 30, 2025** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;U.S. Government agencies | $2476121 | $17389 | $(5960) | $2487550 |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | 3984674 | 26641 | (188437) | 3822878 |
| &nbsp;&nbsp;&nbsp;&nbsp;State and political subdivisions | 3688794 |  | (343108) | 3345686 |
|  | $10149589 | $44030 | $(537505) | $9656114 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | <br>**Amortized**<br>**Cost** | **Gross**<br>**Unrealized**<br>**Gains** | **Gross**<br>**Unrealized**<br>**Losses** | <br>**Approximate**<br>**Fair Value** |
| **Available-for-sale Securities:** |  |  |  |  |
| &nbsp;&nbsp;**September 30, 2024** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;U.S. Government agencies | 3473459 | 20089 | (36168) | 3457380 |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | 4635875 | 49422 | (211027) | 4474270 |
| &nbsp;&nbsp;&nbsp;&nbsp;State and political subdivisions | 3421238 | 20904 | (252514) | 3189628 |
|  | $11530572 | $90415 | $(499709) | $11121278 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | <br>**Amortized**<br>**Cost** | **Gross**<br>**Unrealized**<br>**Gains** | **Gross**<br>**Unrealized**<br>**Losses** | <br>**Approximate**<br>**Fair Value** |
| **Held-to-maturity Securities:** |  |  |  |  |
| &nbsp;&nbsp;**September 30, 2025** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | $67723 | $— | $(543) | $67180 |
| &nbsp;&nbsp;**September 30, 2024** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | $92840 | $— | $(1439) | $91401 |

---

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The amortized cost and fair value of available-for-sale securities at September 30, 2025, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties:

---

| | | |
|:---|:---|:---|
|  | **Amortized**<br>**Cost** | **Fair**<br>**Value** |
| **September 30, 2025** |  |  |
| &nbsp;&nbsp;Within one year | $1000000 | $994800 |
| &nbsp;&nbsp;One to five years | 1000000 | 999240 |
| &nbsp;&nbsp;Five to ten years | 1332944 | 1306177 |
| &nbsp;&nbsp;After ten years | 2831971 | 2533019 |
|  | 6164915 | 5833236 |
| &nbsp;&nbsp;Mortgage-backed GSEs | 3984674 | 3822878 |
| &nbsp;&nbsp;Totals | $10149589 | $9656114 |

---

Maturity information for held-to-maturity securities is not presented since expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

The carrying value of securities pledged as collateral, to secure public deposits and for other purposes, was approximately $1.1 million and $493,000 at September 30, 2025 and 2024, respectively.

There were no sales of available for sale securities during the fiscal year ended September 30, 2025. Proceeds from sales of available for sale securities totaled approximately $888,000 during the fiscal year ended September 30, 2024, resulting in gross realized gains of $13,870 and gross realized losses of $9,559.

Certain investments in debt securities are reported in the financial statements at an amount less than their historical cost. Total fair value of these investments, comprised of 25 and 21 securities at September 30, 2025 and 2024, respectively, was approximately $8.4 million and $7.8 million, which is approximately 86 percent and 70 percent, respectively, of the fair value of the Company's total investment portfolio. These declines primarily resulted from changes in market interest rates.

Based on evaluation of available evidence, including recent changes in market interest rates and information obtained from regulatory filings, management believes the declines in fair value for these securities are temporary.

Should the fair value decline of any of these securities be attributed to credit-related reasons, the cost basis of the investment will be reduced and the resulting loss recognized in net income in the period identified.

The following tables show the Company's investments' gross unrealized losses and fair value of the Company's investments with unrealized losses for which an allowance for credit losses has not been recorded, aggregated by

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

investment class and length of time that individual securities have been in a continuous unrealized loss position at September 30, 2025 and 2024:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| | **Less than 12 Months** | **Less than 12 Months** | **12 Months or More** | **12 Months or More** | **Total** | **Total** |
| <br>**Description of Securities** | **Fair**<br>**Value** | **Unrealized**<br>**Losses** | **Fair**<br>**Value** | **Unrealized**<br>**Losses** | **Fair**<br>**Value** | **Unrealized**<br>**Losses** |
| **Available for sale** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;U.S. Government agencies | $— | $— | $1994040 | $(5960) | $1994040 | $(5960) |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | 560974 | (15975) | 2418879 | (172463) | 2979853 | (188438) |
| &nbsp;&nbsp;&nbsp;&nbsp;State and political subdivisions | 1414624 | (67653) | 1931062 | (275455) | 3345686 | (343108) |
|  | $1975598 | $(83628) | $6343981 | $(453878) | $8319579 | $(537506) |
| &nbsp;&nbsp;**Held to maturity** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) |  | $— | $67180 | (543) | 67180 | (543) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total  | $1975598 | $(83628) | $6411161 | $(454421) | $8386759 | $(538049) |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** |
| | **Less than 12 Months** | **Less than 12 Months** | **12 Months or More** | **12 Months or More** | **Total** | **Total** |
| <br>**Description of Securities** | **Fair**<br>**Value** | **Unrealized**<br>**Losses** | **Fair**<br>**Value** | **Unrealized**<br>**Losses** | **Fair**<br>**Value** | **Unrealized**<br>**Losses** |
| **Available for sale** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;U.S. Government agencies | $— | $— | $2964120 | $(36168) | $2964120 | $(36168) |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) |  |  | 2898583 | (211027) | 2898583 | (211027) |
| &nbsp;&nbsp;&nbsp;&nbsp;State and political subdivisions | 341947 | (4544) | 1621380 | (247970) | 1963327 | (252514) |
|  | $341947 | $(4544) | $7484083 | $(495165) | $7826030 | $(499709) |
| &nbsp;&nbsp;**Held to maturity** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) |  |  | 91402 | (1438) | 91402 | (1438) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total  | $341947 | $(4544) | $7575485 | $(496603) | $7917432 | $(501147) |

---

*U.S. Government Treasuries and Agencies and State and Political Subdivisions*

Unrealized losses on these securities have not been recognized because the issuers' bonds are of high credit quality, values have only been impacted by changes in interest rates since the securities were purchased, and the Company has the intent and ability to hold the securities for the foreseeable future. The fair value is expected to recover as the bonds approach the maturity date.

Because the decline in market value was attributable to changes in interest rates, and not credit quality, and because the Company typically does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company has not established an allowance for credit losses for these securities at September 30, 2025 and 2024.

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**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

*Mortgage-backed GSEs*

The unrealized losses on the Company's investment in residential mortgage-backed government sponsored enterprises were caused primarily by changes in interest rates. The Company expects to recover the amortized cost basis over the term of the securities. Because the decline in market value is attributable to changes in interest rates, and not credit quality, and because the Company typically does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company has not established an allowance for credit losses for these securities at September 30, 2025 and 2024.

#### Note 5:&nbsp;&nbsp;&nbsp;&nbsp;Loans and Allowance for Credit Losses
Categories of loans were as follows:

---

| | | |
|:---|:---|:---|
|  | **September 30,** <br>**2025** | **September 30,** <br>**2024** |
| Real estate loans: |  |  |
| &nbsp;&nbsp;Residential | $78774355 | $73285469 |
| &nbsp;&nbsp;Multi-family | 1204664 | 1259640 |
| &nbsp;&nbsp;Agricultural | 46317040 | 53523748 |
| &nbsp;&nbsp;Commercial | 2326429 | 2453082 |
| &nbsp;&nbsp;Construction and land | 4264994 | 6024429 |
| &nbsp;&nbsp;Home equity line of credit (HELOC) | 4771614 | 4959058 |
| Commercial and industrial | 1233406 | 1666188 |
| Consumer | 5085548 | 5518844 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total loans | 143978050 | 148690458 |
| &nbsp;&nbsp;Less: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Undisbursed loans in process | 415915 | 2309368 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net deferred loan fees | 304570 | 339455 |
| &nbsp;&nbsp;&nbsp;&nbsp;Allowance for credit losses | 960307 | 963268 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loans | $142297258 | $145078367 |

---

Mortgage loans serviced for others are not included in the accompanying consolidated balance sheets. The unpaid principal balances of these loans at September 30, 2025 and 2024, were approximately $16.4 million and $18.0 million, respectively. At September 30, 2025 and 2024, the mortgage-servicing rights included in other assets on the balance sheet were approximately $111,000 and $121,000, respectively.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The following tables present the activity in the allowance for credit losses based on portfolio segment for the years ended September 30, 2025 and 2024.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Year ended September 30, 2025** | **Year ended September 30, 2025** | **Year ended September 30, 2025** | **Year ended September 30, 2025** | **Year ended September 30, 2025** |
|  | <br>**Balance**<br>**October 1, 2024** | **Provision**<br>**(credit)**<br>**for credit losses** | <br><br>**Charge-offs** | <br><br>**Recoveries** | <br>**Balance**<br>**September 30, 2025** |
| Real estate loans: |  |  |  |  |  |
| &nbsp;&nbsp;Residential | $691852 | $53857 | $— | $— | $745709 |
| &nbsp;&nbsp;Multi-family | 2525 | (116) |  |  | 2409 |
| &nbsp;&nbsp;Agricultural | 107284 | (14650) |  |  | 92634 |
| &nbsp;&nbsp;Commercial | 4917 | (264) |  |  | 4653 |
| &nbsp;&nbsp;Construction and land | 92660 | (84130) |  |  | 8530 |
| &nbsp;&nbsp;Home equity line of credit (HELOC) | 14910 | (595) |  |  | 14315 |
| Commercial and industrial | 3314 | (861) |  |  | 2453 |
| Consumer | 45806 | 112759 | (157188) | 88227 | 89604 |
| Allowance for credit losses on loans | $963268 | $66000 | $(157188) | $88227 | $960307 |

---

The increase in the level of the allowance allocated to the consumer loans was due primarily to the growth in that loan category. The decrease in the allowance allocated to the construction loans category was due to paydowns of commercial construction loans during the year, which were evaluated with a higher expected loss rate than the construction loans on residential one-to four-family real estate, and the lesser allocation on the residential real estate loans was due primarily to the decline in balances, coupled with an analysis of the economic environment and the effect on the risk factors applied to that category.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **Year ended September 30, 2024** | **Year ended September 30, 2024** | **Year ended September 30, 2024** | **Year ended September 30, 2024** | **Year ended September 30, 2024** |  |
|  | <br>**Balance**<br>**October 1, 2023** | **Effect of**<br>**Adoption of**<br>**ASC 326** | **Provision**<br>**(credit)**<br>**for credit losses** | <br><br>**Charge-offs** | <br><br>**Recoveries** | <br>**Balance**<br>**September 30, 2024** |
| Real estate loans: |  |  |  |  |  |  |
| &nbsp;&nbsp;Residential | $738230 | $32000 | $(78378) | $— | $— | $691852 |
| &nbsp;&nbsp;Multi-family | 12840 |  | (10315) |  |  | 2525 |
| &nbsp;&nbsp;Agricultural | 73608 |  | 33676 |  |  | 107284 |
| &nbsp;&nbsp;Commercial | 4678 |  | 239 |  |  | 4917 |
| &nbsp;&nbsp;Construction and land | 49835 |  | 42825 |  |  | 92660 |
| &nbsp;&nbsp;Home equity line of credit (HELOC) | 14289 |  | 621 |  |  | 14910 |
| Commercial and industrial | 3645 |  | (331) |  |  | 3314 |
| Consumer | 37206 |  | $74663 | (66864) | 801 | 45806 |
| Allowance for credit losses on loans | $934331 | $32000 | $63000 | $(66864) | $801 | $963268 |

---

The balance of loans individually evaluated was $1.6 million at September 30, 2025. The Company had no loans individually evaluated at September 30, 2024.

The Company has adopted a standard loan grading system for all loans, as follows:

**Pass.** Loans of sufficient quality, which generally are protected by the current net worth and paying capacity of the obligor or by the value of the asset or underlying collateral.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

**Special Mention.** Loans have potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Bank's credit position at some future date.

**Substandard.** Loans which are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Usually, this classification includes all 90 days or more, non-accrual, and past due loans.

**Doubtful.** Loans which have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

**Loss.** Loans considered uncollectible and of such little value that continuance as an asset without the establishment of a specific reserve is not warranted.

Risk characteristics of each loan portfolio segment are described as follows:

Residential Real Estate

These loans include first liens and junior liens on 1-4 family residential real estate (both owner and non-owner occupied). The main risks for these loans are changes in the value of the collateral and stability of the local economic environment and its impact on the borrowers' employment. Management specifically considers unemployment and changes in real estate values in the Company's market area.

Multi-family Real Estate

These loans include loans on residential real estate secured by property with five or more units. The main risks are changes in the value of the collateral, ability of borrowers to collect rents, vacancy and changes in the tenants' employment status. Management specifically considers unemployment and changes in real estate values in the Company's market area.

Agriculture Real Estate

These loans are primarily loans on farm ground and include loans secured by residential properties located on farm ground, but agricultural activities may not be the primary occupation of the borrowers. The main risks are changes in the value of the collateral and changes in the economy or borrowers' business operations. Management specifically considers unemployment and changes in real estate values in the Company's market area.

Commercial Real Estate

These loans are generally secured by owner-occupied commercial real estate including warehouses and offices. The main risks are changes in the value of the collateral and ability of borrowers to successfully conduct their business operations. Management specifically considers unemployment and changes in real estate values in the Company's market area.

Construction and Land Real Estate

These loans include construction loans for 1-4 family residential and commercial properties (both owner and non-owner occupied) and first liens on land. The main risks for construction loans include uncertainties in estimating

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

costs of construction and in estimating the market value of the completed project. The main risks for land loans are changes in the value of the collateral and stability of the local economic environment. Management specifically considers unemployment and changes in real estate values in the Company's market area.

#### HELOC
These loans are generally secured by owner-occupied 1-4 family residences. The main risks for these loans are changes in the value of the collateral and stability of the local economic environment and its impact on the borrowers' employment. Management specifically considers unemployment and changes in real estate values in the Company's market area.

Commercial and Industrial

The commercial and industrial portfolio includes loans to commercial customers for use in financing working capital needs, equipment purchases and expansions. The loans in this category are repaid primarily from the cash flow of a borrower's principal business operation. Credit risk in these loans is driven by creditworthiness of the borrower and the economic conditions that impact the cash flow stability from business operations.

Consumer Loans

These loans include vehicle loans, share loans and unsecured loans. The main risks for these loans are the depreciation of the collateral values (vehicles) and the financial condition of the borrowers. Major employment changes are specifically considered by management.

Information regarding the credit quality indicators most closely monitored for other than residential real estate and consumer loans by class as of September 30, 2025 and 2024, follows:

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | | | |
|  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | | | |
|  | **2025** | **2024** | **2023** | **2022** | **2021** | **Prior** | **Revolving Loans**<br>**Amortized** <br>**Cost Basis** | **Revolving Loans**<br>**Converted**<br>**to Term** | <br>**Total** |
| **September 30, 2025** |  |  |  |  |  |  |  |  |  |
| **Commercial real estate** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $190000 | $369645 | $- | $731021 | $905151 | $130612 | $- | $- | $2326429 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $190000 | $369645 | $- | $731021 | $905151 | $130612 | $- | $- | $2326429 |
| **Commercial real estate** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Construction and land** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $918152 | $3176710 | $- | $87960 | $13578 | $21899 | $- | $- | $4218299 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | 46695 | - | - | 46695 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $918152 | $3176710 | $- | $87960 | $13578 | $68594 | $- | $- | $4264994 |
| **Construction and land** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Commercial and industrial** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $- | $- | $- | $- | $124594 | $257022 | $851790 | $- | $1233406 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $- | $- | $- | $- | $124594 | $257022 | $851790 | $- | $1233406 |
| **Commercial and industrial** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Multi Family** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $- | $- | $- | $929569 | $- | $275095 | $- | $- | $1204664 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $- | $- | $- | $929569 | $- | $275095 | $- | $- | $1204664 |
| **Multi Family** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Agricultural** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $901007 | $15856843 | $10492312 | $7589939 | $4318434 | $6467816 | $- | $- | $45626351 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | 293231 | 250092 | - | 147366 | - | - | 690689 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $901007 | $15856843 | $10785543 | $7840031 | $4318434 | $6615182 | $- | $- | $46317040 |
| **Agricultural** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Total** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $2009159 | $19403198 | $10492312 | $9338489 | $5361757 | $7152444 | $851790 | $- | $54609149 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | 293231 | 250092 | - | 194061 | - | - | 737384 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $2009159 | $19403198 | $10785543 | $9588581 | $5361757 | $7346505 | $851790 | $- | $55346533 |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | | | |
|  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | | | |
|  | **2024** | **2023** | **2022** | **2021** | **2020** | **Prior** | **Revolving Loans**<br>**Amortized** <br>**Cost Basis** | **Revolving Loans**<br>**Converted**<br>**to Term** | <br>**Total** |
| **September 30, 2024** |  |  |  |  |  |  |  |  |  |
| **Commercial real estate** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $372730 | $- | $750005 | $1148912 | $- | $181435 | $- | $- | $2453082 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $372730 | $- | $750005 | $1148912 | $- | $181435 | $- | $- | $2453082 |
| **Commercial real estate** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Construction and land** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $4897328 | $909827 | $68054 | $66740 | $- | $31698 | $- | $- | $5973647 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | 50782 | - | - | - | 50782 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $4897328 | $909827 | $68054 | $66740 | $50782 | $31698 | $- | $- | $6024429 |
| **Construction and land** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Commercial and industrial** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $- | $- | $- | $175600 | $379296 | $- | $1093861 | $- | $1648757 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | 17431 | - | 17431 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $- | $- | $- | $175600 | $379296 | $- | $1111292 | $- | $1666188 |
| **Commercial and industrial** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Multi Family** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $- | $- | $955479 | $- | $- | $304161 | $- | $- | $1259640 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $- | $- | $955479 | $- | $- | $304161 | $- | $- | $1259640 |
| **Multi Family** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Agricultural** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $20834246 | $11441930 | $9074011 | $5754530 | $3451803 | $2967228 | $- | $- | $53523748 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $20834246 | $11441930 | $9074011 | $5754530 | $3451803 | $2967228 | $- | $- | $53523748 |
| **Agricultural** |  |  |  |  |  |  |  |  |  |
| Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Total** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Risk Rating |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pass | $26104304 | $12351757 | $10847549 | $7145782 | $3831099 | $3484522 | $1093861 | $- | $64858874 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Special Mention | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substandard | - | - | - | - | 50782 | - | 17431 | - | 68213 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Doubtful | - | - | - | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $26104304 | $12351757 | $10847549 | $7145782 | $3881881 | $3484522 | $1111292 | $- | $64927087 |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The Company monitors the credit risk profile by payment activity for residential, home equity and consumer loan classes. Loans past due 90 days or more and loans on nonaccrual status are considered nonperforming. Nonperforming loans are reviewed monthly. The following table presents the amortized cost in residential, home equity and consumer loans based on payment activity.

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | | | |
|  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | | | |
|  | **2025** | **2024** | **2023** | **2022** | **2021** | **Prior** | **Revolving Loans**<br>**Amortized**<br>**Cost Basis** | **Revolving Loans**<br>**Amortized**<br>**Cost Basis** | <br>**Total** |
| **September 30, 2025** |  |  |  |  |  |  |  |  |  |
| **Residential real estate and HELOC** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Payment Performance |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Performing | $12630915 | $8140586 | $5183326 | $9284260 | $17417339 | $25437880 | $4771614 | $98177 | $82964097 |
| &nbsp;&nbsp;&nbsp;Nonperforming | - | - | - | 116431 | 259992 | 205449 | - | - | 581872 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $12630915 | $8140586 | $5183326 | $9400691 | $17677331 | $25643329 | $4771614 | $98177 | $83545969 |
| **Residential real estate and HELOC** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Consumer** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Payment Performance |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Performing | $1545259 | 146486 | $3255323 | $49261 | $23431 | $36588 | $- | $- | $5056348 |
| &nbsp;&nbsp;&nbsp;Nonperforming | - | 26873 | - | 2327 | - | - | - | - | 29200 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $1545259 | $173359 | $3255323 | $51588 | $23431 | $36588 | $- | $- | $5085548 |
| **Consumer** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Current period gross charge-offs | $156 | $18040 | $138992 | $- | $- | $- | $- | $- | $157188 |
| **Total** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Payment Performance |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Performing | $14176174 | $8287072 | $8438649 | $9333521 | $17440770 | $25474468 | $4771614 | $98177 | $88020445 |
| &nbsp;&nbsp;&nbsp;Nonperforming | - | 26873 | - | 118758 | 259992 | 205449 | - | - | 611072 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $14176174 | $8313945 | $8438649 | $9452279 | $17700762 | $25679917 | $4771614 | $98177 | $88631517 |
|  | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Term Loans Amortized Cost Basis by Origination Year** | **Revolving Loans** | **Revolving Loans** |  |
|  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **For The Years Ending September 30,**  | **Amortized** | **Amortized** |  |
|  | **2024** | **2023** | **2022** | **2021** | **2020** | **Prior** | **Cost Basis** | **Cost Basis** | **Total** |
| **September 30, 2024** |  |  |  |  |  |  |  |  |  |
| **Residential real estate** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Payment Performance |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Performing | $8532004 | $4752191 | $14591072 | $18882083 | $6603015 | $19655898 | $4959058 | $- | $77975321 |
| &nbsp;&nbsp;&nbsp;Nonperforming | - | - | - | 135161 | - | 134045 | - | - | 269206 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $8532004 | $4752191 | $14591072 | $19017244 | $6603015 | $19789943 | $4959058 | $- | $78244527 |
| **Residential real estate** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Current period gross charge-offs | $- | $- | $- | $- | $- | $- | $- | $- | $- |
| **Consumer** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Payment Performance |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Performing | $348272 | $4892481 | $147659 | $38002 | $30725 | $13348 | $- | $- | $5470487 |
| &nbsp;&nbsp;&nbsp;Nonperforming | - | 21841 | 2327 | - | 3780 | 20409 | - | - | 48357 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $348272 | $4914322 | $149986 | $38002 | $34505 | $33757 | $- | $- | $5518844 |
| **Consumer** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Current period gross charge-offs | $- | $66864 | $- | $- | $- | $- | $- | $- | $66864 |
| **Total** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Payment Performance |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Performing | $8880276 | $9644672 | $14738731 | $18920085 | $6633740 | $19669246 | $4959058 | $- | $83445808 |
| &nbsp;&nbsp;&nbsp;Nonperforming | - | 21841 | 2327 | 135161 | 3780 | 154454 | - | - | 317563 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $8880276 | $9666513 | $14741058 | $19055246 | $6637520 | $19823700 | $4959058 | $- | $83763371 |

---

The Company evaluates the loan risk grading system definitions and allowance for loan losses methodology on an ongoing basis. No significant changes were made to either during the years ended September 30, 2025 and 2024.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The following tables present the Company's loan portfolio aging analysis of the recorded investment in loans as of September 30, 2025 and 2024:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | <br>**30-59 Days**<br>**Past Due** | <br>**60-89 Days**<br>**Past Due** | **90 Days**<br>**and Greater**<br>**Past Due** | <br>**Total**<br>**Past Due** | <br><br>**Current** | <br>**Total Loans**<br>**Receivable** | **Total Loans >**<br>**90 Days &**<br>**Accruing** |
| Real estate loans: |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Residential | $575867 | $220713 | $581873 | $1378453 | $77395902 | $78774355 | $116431 |
| &nbsp;&nbsp;&nbsp;Multi-family |  |  |  |  | 1204664 | 1204664 |  |
| &nbsp;&nbsp;&nbsp;Agricultural |  | 156881 | 690990 | 847871 | 45469169 | 46317040 | 440598 |
| &nbsp;&nbsp;&nbsp;Commercial |  |  |  |  | 2326429 | 2326429 |  |
| &nbsp;&nbsp;&nbsp;Construction and land |  |  | 46695 | 46695 | 4218299 | 4264994 | 46695 |
| &nbsp;&nbsp;&nbsp;Home equity line of credit (HELOC) |  |  |  |  | 4771614 | 4771614 |  |
| Commercial and industrial | 24814 |  |  | 24814 | 1208592 | 1233406 |  |
| Consumer | 21247 |  | 29200 | 50447 | 5035101 | 5085548 | 29200 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Total** | $621928 | $377594 | $1348758 | $2348280 | $141629770 | $143978050 | $632924 |

---

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** | **September 30, 2024** |
|  | <br>**30-59 Days**<br>**Past Due** | <br>**60-89 Days**<br>**Past Due** | **90 Days**<br>**and Greater**<br>**Past Due** | <br>**Total**<br>**Past Due** | <br><br>**Current** | <br>**Total Loans**<br>**Receivable** | **Total Loans>**<br>**90 Days &**<br>**Accruing** |
| Real estate loans: |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Residential | $498008 | $184393 | $269206 | $951607 | $72333862 | $73285469 | $— |
| &nbsp;&nbsp;&nbsp;Multi-family |  |  |  |  | 1259640 | 1259640 |  |
| &nbsp;&nbsp;&nbsp;Agricultural |  |  |  |  | 53523748 | 53523748 |  |
| &nbsp;&nbsp;&nbsp;Commercial |  |  |  |  | 2453082 | 2453082 |  |
| &nbsp;&nbsp;&nbsp;Construction and land |  |  | 50782 | 50782 | 5973647 | 6024429 |  |
| &nbsp;&nbsp;&nbsp;Home equity line of credit (HELOC) | 74969 |  |  | 74969 | 4884089 | 4959058 |  |
| Commercial and industrial | 3516 |  | 17431 | 20947 | 1645241 | 1666188 |  |
| Consumer | 113123 |  | 21841 | 134964 | 5383880 | 5518844 | 26516 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Total** | $689616 | $184393 | $359260 | $1233269 | $147457189 | $148690458 | $26516 |

---

The Company had no loans identified as collateral dependent as of September 30, 2025 and 2024.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

Non-performing loans at September 30, 2025 and 2024, were as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Nonaccrual Loans  | Nonaccrual Loans  | Nonaccrual Loans  | | |
|  | With No Allowance <br>for Credit Loss | With Allowance <br>for Credit Loss | <br>Total | Loans Past Due<br>Over 90 Days<br>and Still Accruing | <br>Total<br>Nonperforming |
| **September 30, 2025** |  |  |  |  |  |
| &nbsp;&nbsp;Residential real estate loans | $461488 | $3953 | $465441 | $116431 | $581872 |
| &nbsp;&nbsp;Agricultural | 250092 |  | 250092 | 440598 | 690690 |
| &nbsp;&nbsp;Construction and land |  |  |  | 46695 | 46695 |
| &nbsp;&nbsp;Consumer |  |  |  | 29200 | 29200 |
|  | $711580 | $3953 | $715533 | $632924 | $1348457 |
|  | Nonaccrual Loans  | Nonaccrual Loans  | Nonaccrual Loans  | Loans Past Due |  |
|  | With No Allowance  | With Allowance  |  | Over 90 Days | Total |
|  | for Credit Loss | for Credit Loss | Total | and Still Accruing | Nonperforming |
| **September 30, 2024** |  |  |  |  |  |
| &nbsp;&nbsp;Residential real estate loans | $269206 | $— | $269206 | $— | $269206 |
| &nbsp;&nbsp;Construction and land | 50782 |  | 50782 |  | 50782 |
| &nbsp;&nbsp;Commercial and industrial | 17431 |  | 17431 |  | 17431 |
| &nbsp;&nbsp;Consumer | 21841 |  | 21841 | 26516 | 48357 |
|  | $359260 | $— | $359260 | $26516 | $385776 |

---

There were no loans modified for borrowers experiencing financial difficulty during the years ended September 30, 2025 and 2024. There were no loans modified for borrowers experiencing financial difficulty in the past 12 months that subsequently defaulted during the years ended September 30, 2025 and 2024.

#### Note 6:&nbsp;&nbsp;&nbsp;&nbsp;Premises and Equipment
Major classifications of premises and equipment, stated at cost, at September 30, 2025 and 2024, are as follows:

---

| | | |
|:---|:---|:---|
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Land | $749301 | $483570 |
| Buildings and improvements | 6269440 | 4262590 |
| Construction in progress |  | 425981 |
| Furniture and equipment | 2640719 | 1680219 |
| &nbsp;&nbsp;Total premises and equipment | 9659460 | 6852360 |
| Less accumulated depreciation | 4507739 | 4121027 |
| &nbsp;&nbsp;Net premises and equipment | $5151721 | $2731333 |

---

During the year ended September 30, 2025, the Company completed construction on and opened a new branch location in Berne, Indiana at a total cost of $2.2 million.

Depreciation expense was approximately $387,000 and $355,000 for the years ended September 30, 2025 and 2024, respectively.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Note 7:&nbsp;&nbsp;&nbsp;&nbsp;Time Deposits
Time deposits in denominations of $250,000 or more were $2,238,000 and $3,219,000 at September 30, 2025 and 2024, respectively.

At September 30, 2025, the scheduled maturities of time deposits were as follows:

---

| | |
|:---|:---|
|  | **September 30,** <br>**2025** |
| Within one year | $38033153 |
| One year to two years | 1623394 |
| Two years to three years | 5212648 |
| Three years to four years | 5035512 |
| Four years to five years | 242444 |
| Thereafter | 138466 |
|  | $50285617 |

---

#### Note 8:&nbsp;&nbsp;&nbsp;&nbsp;Borrowings
The Bank had Federal Home Loan Bank (FHLB) advances outstanding totaling $6.0 million and $15.0 million as of September 30, 2025 and 2024, respectively.

At September 30, 2025 and 2024, the Bank had a cash management line of credit agreement with the FHLB providing for additional borrowing of $11.0 million. The Bank had $2.0 million drawn on this line at September 30, 2025 and $7.0 million drawn on this line at September 30, 2024. The cash management line of credit balance is included in the total outstanding balances presented.

The Bank has made a collateral pledge to the FHLB consisting of all shares of FHLB stock owned by the Bank and a blanket pledge of approximately $71.0 million and $72.9 million of its qualifying mortgage assets as of September 30, 2025 and 2024, respectively.

Based on this collateral, the Bank was eligible to borrow up to a total of approximately $41.3 million as of September 30, 2025 and of approximately $23.2 million as of September 30, 2024.

Maturities of FHLB advances were as follows at September 30, 2025:

---

| | |
|:---|:---|
|  | **September 30,** <br>**2025** |
| Within one year (weighted average rate 4.86%) | $6000000 |

---

---

| | | |
|:---|:---|:---|
|  | **2025** | **2024** |
| Balance at year end | $6000000 | $22000000 |
| Average balance outstanding | 17905376 | 13316712 |
| Maximum month-end balance | 24000000 | 22000000 |
| Weighted-average rate at year-end | 4.64% | 5.01% |
| Weighted-average rate during the year | 4.62% | 5.44% |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Note 9:&nbsp;&nbsp;&nbsp;&nbsp;Income Taxes
The provision for income taxes includes these components for the years ended September 30, 2025 and 2024:

---

| | | |
|:---|:---|:---|
|  | **For the Year Ended** | **For the Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Taxes currently payable | $187674 | $177953 |
| Deferred income taxes | 67694 | (12283) |
| &nbsp;&nbsp;Income tax expense | $255368 | $165670 |

---

A reconciliation of the federal income tax expense at the statutory rate to the Company's actual income tax expense is shown below:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **For the Year Ended** | **For the Year Ended** | **For the Year Ended** | **For the Year Ended** |
|  | **September 30,**  | **September 30,**  | **September 30,**  | **September 30,**  |
|  | **2025** | **2025** | **2024** | **2024** |
|  | <br>**Amount** | **% of Pretax**<br>**Income** | <br>**Amount** | **% of Pretax**<br>**Income** |
| Computed at statutory rate (21%) | $257811 | 21.00% | $180265 | 21.00% |
| Increase (decrease) resulting from: |  |  |  |  |
| &nbsp;&nbsp;Bank-owned life insurance | (9928) | (0.81)% | (9513) | (1.11)% |
| &nbsp;&nbsp;Nontaxable interest income on municipal securities | (23506) | (1.91)% | (22288) | (2.59)% |
| &nbsp;&nbsp;Other | 30991 | 2.52% | 17206 | 2.00% |
| &nbsp;&nbsp;&nbsp;&nbsp;Actual income tax expense | $255368 | 20.80% | $165670 | 19.30% |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The composition of the Company's net deferred tax assets and liabilities at September 30, 2025 and 2023, is as follows:

---

| | | |
|:---|:---|:---|
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Deferred tax assets |  |  |
| &nbsp;&nbsp;Allowance for credit losses | $210166 | $210308 |
| &nbsp;&nbsp;Accrued benefits | 169344 | 147423 |
| &nbsp;&nbsp;Unrealized losses on available-for-sale securities | 103630 | 86254 |
| &nbsp;&nbsp;Charitable contributions | 60494 | 44699 |
| &nbsp;&nbsp;Other | 75893 | 84152 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred tax assets | 619527 | 572836 |
| Deferred tax liabilities |  |  |
| &nbsp;&nbsp;Depreciation | (245248) | (121970) |
| &nbsp;&nbsp;Federal Home Loan Bank stock dividends | (76594) | (109290) |
| &nbsp;&nbsp;Mortgage servicing rights | (24184) | (26335) |
| &nbsp;&nbsp;Other | (39953) | (31375) |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred tax liabilities | (385979) | (288970) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net deferred tax asset | $233548 | $283866 |

---

Retained earnings at each of September 30, 2025 and 2024, included approximately $909,000 for which no deferred federal income tax liability has been recognized. This amount represents an allocation of income to bad debt deductions for tax purposes only. Reduction of amounts so allocated for purposes other than tax bad debt losses or adjustments arising from carryback of net operating losses would create income for tax purposes only, which would be subject to the then-current corporate income tax rate. The deferred income tax liability on the preceding amount that would have been recorded if it was expected to reverse into taxable income in the foreseeable future was approximately $191,000 at September 30, 2025 and 2024.

#### Note 10:&nbsp;&nbsp;&nbsp;&nbsp;Regulatory Matters
The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank's financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank's assets, liabilities and certain off-balance-sheet items as calculated under U.S. GAAP reporting requirements and regulatory capital standards. The Bank's capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Furthermore, the Bank's regulators could require adjustments to regulatory capital not reflected in these financial statements.

Quantitative measures established by regulatory reporting standards to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined) to risk-weighted assets (as defined), common equity Tier I capital (as defined) to total risk-weighted assets (as defined) and of Tier I capital (as defined) to average assets (as defined). Management believes, as of September 30, 2025 and 2024, that the Bank met all capital adequacy requirements to which it is subject.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

As of September 30, 2025, the most recent notification from the regulators categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based capital, Tier I risk-based capital, common equity Tier I risk-based capital and Tier I leverage ratios as set forth in the table.

There are no conditions or events since that notification that management believes have changed the Bank's category.

The Bank's actual and required capital amounts and ratios are as follows (table amounts in thousands):

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  |  |  |  |  | **To Be Well Capitalized** | **To Be Well Capitalized** |
|  |  |  |  |  | **Under** | **Under** |
|  |  |  |  |  | **Prompt Corrective** | **Prompt Corrective** |
|  |  |  | **For Capital Adequacy** | **For Capital Adequacy** | **Action** | **Action** |
|  | **Actual** | **Actual** | **Purposes** | **Purposes** | **Provisions** | **Provisions** |
|  | **Amount** | **Ratio** | **Amount** | **Ratio** | **Amount** | **Ratio** |
|  | (Dollars in thousands) | (Dollars in thousands) | (Dollars in thousands) | (Dollars in thousands) | (Dollars in thousands) | (Dollars in thousands) |
| **As of September 30, 2025** |  |  |  |  |  |  |
| &nbsp;&nbsp;Total Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Risk-Weighted Assets) | $23037 | 17.8% | $10342 | 8.0% | $12928 | 10.0% |
| &nbsp;&nbsp;Tier 1 Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Risk-Weighted Assets) | $22072 | 17.1% | $7757 | 6.0% | $10342 | 8.0% |
| &nbsp;&nbsp;Common Equity Tier I Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Risk-Weighted Assets) | $22072 | 17.1% | $5817 | 4.5% | $8403 | 6.5% |
| &nbsp;&nbsp;Tier I Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Average Total Assets) | $22072 | 12.5% | $7047 | 4.0% | $8808 | 5.0% |
| **As of September 30, 2024** |  |  |  |  |  |  |
| &nbsp;&nbsp;Total Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Risk-Weighted Assets) | $21797 | 16.3% | $10699 | 8.0% | $13374 | 10.0% |
| &nbsp;&nbsp;Tier 1 Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Risk-Weighted Assets) | $20829 | 15.6% | $8024 | 6.0% | $10699 | 8.0% |
| &nbsp;&nbsp;Common Equity Tier I Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Risk-Weighted Assets) | $20829 | 15.6% | $6018 | 4.5% | $8693 | 6.5% |
| &nbsp;&nbsp;Tier I Capital |  |  |  |  |  |  |
| &nbsp;&nbsp;(to Average Total Assets) | $20829 | 11.6% | $7183 | 4.0% | $8978 | 5.0% |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Note 11: &nbsp;&nbsp;&nbsp;&nbsp;Related Party Transactions
The Bank had loans outstanding to certain of its executive officers, directors and their related interests. Activity in these loans for the years ended September 30, 2025 and 2024, is presented in the following table. Loan balances that are no longer considered part of a related party relationship are shown as other activity.

---

| | | |
|:---|:---|:---|
|  | **For the Year Ended** | **For the Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Balance at beginning of year | $1339116 | $1493394 |
| New borrowings |  | 100000 |
| Repayments | (99376) | (55180) |
| Other |  | (199098) |
| Balance at end of year | $1239740 | $1339116 |

---

In management's opinion, such loans and other extensions of credit and deposits were made in the ordinary course of business and were made on substantially the same terms (including interest rates and collateral) as those prevailing at the time for comparable transactions with other persons. Further, in management's opinion, these loans did not involve more than normal risk of collectability.

Deposits from related parties held by the Bank at September 30, 2025 and 2024, totaled approximately $749,000 and $578,000, respectively.

#### Note 12: &nbsp;&nbsp;&nbsp;&nbsp;Employee Benefits
401(k) Plan

The Company has a defined contribution 401(k) and profit sharing benefit plan covering substantially all employees. Employees are eligible to participate once they have reached age 21 and have completed one year of service. The Bank will make matching contributions up to 4 percent of an employee's compensation once the employee has completed 12 months of service. The Bank may make a discretionary profit sharing contribution to the plan each year. The Bank's expense for this plan totaled approximately $202,000 and $170,000 for the years ended September 30, 2025 and 2024, respectively.

Director Retirement Plan

The Company maintains a plan to provide specified retirement benefits to each director upon their retirement from the Board. The director retirement plan expense for the years ended September 30, 2025 and 2024, was $36,000 and $37,000, respectively. The related accrued liability as of September 30, 2025 and 2024 was $371,000 and $409,000, respectively. The decrease in liability was due to the retirement of a director. The Bank purchased Flexible Premium Universal Life Insurance Policies to use as an informal funding vehicle for the expected future payments. The cash surrender value of these policies is reflected on the Company's consolidated balance sheets.

Employee Stock Ownership Plan (ESOP)

In connection with the Conversion in July 2023, the Company established a leveraged ESOP for eligible employees of the Bank. The ESOP trust purchased 81,838 shares of Company common stock at the initial public

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

offering price of $10.00 per share financed by the 15-year term loan with the Company. The interest rate of the loan is 8.50% and the maturity date is December 31, 2037. The loan is secured by shares purchased with the loan proceeds and will be repaid by the ESOP with funds from the Bank's discretionary contributions to the ESOP. When loan payments are made, ESOP shares are allocated to participants based on relative compensation. The Bank recognizes expense based on the average fair value of the shares to be allocated to the ESOP participants.

Activity in the ESOP for the years ended September 30, 2025 and 2024 is as follows:

---

| | | |
|:---|:---|:---|
|  | **For the Year Ended** | **For the Year Ended** |
|  | **September 30,** | **September 30,** |
|  | **2025** | **2024** |
| &nbsp;&nbsp;Shares committed to be released to participants |  |  |
| &nbsp;&nbsp;Shares allocated to participants | 10912 | 5456 |
| &nbsp;&nbsp;Unreleased shares | 70926 | 76382 |
| &nbsp;&nbsp;ESOP shares at end of plan year | 81838 | 81838 |
| &nbsp;&nbsp;Fair value of unreleased shares | $1099353 | $962413 |

---

The Company recognized expense related to the ESOP totaling $78,000 and $99,000 during the years ended September 30, 2025 and 2024, respectively.

Share Based Compensation Arrangements

In February 2025, the Company's shareholders approved the Mercer Bancorp, Inc. 2025 Equity Incentive Plan (the "2025 Plan"). The 2025 Plan authorized the issuance or delivery to participants of up to 143,215 shares of the Company's common stock pursuant to the grants of restricted stock awards, restricted stock unit awards, incentive stock options and non-qualified stock options. Of this number, the maximum number of shares of Company common stock that may be issued under the 2025 Plan pursuant to the exercise of stock options is 102,297 shares and the maximum number of shares of Company common stock that may be issued as restricted stock awards or restricted stock units is 40,918. Awards under the 2025 Plan may be authorized but not yet issued.

A summary of the status of the Company's unvested restricted shares as of September 30, 2025, and changes during the year ended is presented below:

---

| | | |
|:---|:---|:---|
|  | <br>**Shares** | **Weighted-average**<br>**Grant Date**<br>**Fair Value** |
| Nonvested shares, October 1, 2024 | - | $- |
| &nbsp;&nbsp;Awarded | 29458 | 14.06 |
| &nbsp;&nbsp;Vested | - | - |
| &nbsp;&nbsp;Forfeited | - | - |
| Nonvested shares, September 30, 2025 | **29458** | $**14.06** |

---

The Company estimated the fair value of each option granted using the Black-Scholes options pricing model. The following key management assumptions were used to value the options granted during the three months ended September 30, 2025:

---

| | |
|:---|:---|
| Volatility | 10.51% |
| Expected dividends | - |
| Expected term (in years) | 10 |
| Risk free rate | 4.25% |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The following table summarizes stock option activity for the year ended September 30, 2025:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **September 30, 2025** | <br>**Shares** | <br>**Weighted-average**<br>**Exercise Price** | **Weighted-average**<br>**Remaining**<br>**Contractual Term**<br>**(Years)** | <br>**Aggregate**<br>**Intrinsic**<br>**Value** |
| Outstanding, beginning of period | - | $- | - | $- |
| &nbsp;&nbsp;Awarded | 73651 | 14.06 | 10.00 | - |
| &nbsp;&nbsp;Exercised | - | - | - | - |
| &nbsp;&nbsp;Forfeited | - | $- | - | $- |
| Outstanding, end of period | 73651 | $14.06 | 9.48 | $106385 |
| Shares exercisable at September 30, 2025 | - | $- |  |  |

---

As of September 30, 2025, there was approximately $700,000 of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the 2025 Plan. That cost is expected to be recognized over a weighted-average period of 4.5 years. During the year ended September 30, 2025, the Company recorded $82,000 in share-based compensation expense, which is included in salaries and employee benefits and director fees.

#### Note 13: &nbsp;&nbsp;&nbsp;&nbsp;Disclosures about Fair Value of Assets and Liabilities
Fair value is the exchange price that would be received to sell an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value:

---

| | |
|:---|:---|
| **Level 1** | Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. |

---

---

| | |
|:---|:---|
| **Level 2** | Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. |

---

---

| | |
|:---|:---|
| **Level 3** | Significant unobservable inputs that reflect an entity's own assumptions about the assumptions that market participants would use in pricing an asset or liability. |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

#### Recurring Measurements
The following table presents the fair value measurements of assets recognized in the accompanying consolidated balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at September 30, 2025 and 2024:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** |
|  | <br><br>**Fair**<br>**Value** | **Quoted Prices in**<br>**Active Markets**<br>**for**<br>**Identical Assets**<br>**(Level 1)** | **Significant**<br>**Other**<br>**Observable**<br>**Inputs**<br>**(Level 2)** | <br>**Significant**<br>**Unobservable**<br>**Inputs**<br>**(Level 3)** |
| **September 30, 2025** |  |  |  |  |
| &nbsp;&nbsp;U.S. Government agencies | $2487550 | $— | $2487550 | $— |
| &nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | 3822878 |  | 3822878 |  |
| &nbsp;&nbsp;State and political subdivisions | 3345686 |  | 3345686 |  |
| **September 30, 2024** |  |  |  |  |
| &nbsp;&nbsp;U.S. Government agencies | $3457380 | $— | $3457380 | $— |
| &nbsp;&nbsp;Mortgage-backed Government Sponsored Enterprises (GSEs) | 4474269 |  | 4474269 |  |
| &nbsp;&nbsp;State and political subdivisions | 3189628 |  | 3189628 |  |

---

Following is a description of the valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. There are no liabilities measured at fair value on a recurring basis. There have been no significant changes in the valuation techniques during the years ended September 30, 2025 and 2024.

#### Available-for-sale Securities
Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independently sourced market parameters, including, but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. In certain cases where Level 1 or Level 2 are not available, securities are classified within Level 3 of the hierarchy. The Bank has no Level 3 securities.

#### Nonrecurring Measurements
Assets that may be recorded at fair value on a nonrecurring basis include impaired loans, other real estate owned, and other repossessed assets. Other real estate owned is adjusted to fair value, less costs to sell, upon transfer of the loan to foreclosed assets, usually based on an appraisal of the property. Subsequently, foreclosed assets are carried at the lower of carrying value or fair value. Other repossessed assets are valued at estimated sales prices, less costs to sell. The inputs for other real estate owned and other repossessed assets are considered to be Level 3.

The Company had no assets or liabilities measured at fair value on a nonrecurring basis at September 30, 2025 and 2024.

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

The estimated fair values of the Company's financial instruments not carried at fair value on the consolidated balance sheets are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | | | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** |
|  | **Carrying**<br>**Value** | **Fair**<br>**Value** | **Level 1** | **Level 2** | **Level 3** |
| **September 30, 2025** |  |  |  |  |  |
| &nbsp;&nbsp;**Financial assets:** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | $5363187 | $5363187 | $5363187 | $— | $— |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest-bearing time deposits | 100000 | 100000 | 100000 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Held-to-maturity securities | 67723 | 67180 |  | 67180 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Loans held for sale | 8051398 | 8461000 |  |  | 8461000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Loans, net | 142297258 | 135944000 |  |  | 135944000 |
| &nbsp;&nbsp;&nbsp;&nbsp;FHLB Stock | 1208100 | 1208100 |  | 1208100 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Bank owned life insurance | 1876454 | 1876454 | 1876454 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | 678357 | 678357 | 678357 |  |  |
| &nbsp;&nbsp;**Financial liabilities:** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Deposits | 143988029 | 145550412 | 93702412 |  | 51848000 |
| &nbsp;&nbsp;&nbsp;&nbsp;FHLB advances  | 6000000 | 5999999 |  | 5999999 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued interest payable | 319239 | 319239 | 319239 |  |  |
| **September 30, 2024** |  |  |  |  |  |
| &nbsp;&nbsp;**Financial assets:** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | $5897596 | $5897596 | $5897596 | $— | $— |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest-bearing time deposits | 100000 | 100000 | 100000 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Held-to-maturity securities | 92840 | 91402 |  | 91402 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Loans held for sale | 10538902 | 10679333 |  |  | 10679333 |
| &nbsp;&nbsp;&nbsp;&nbsp;Loans, net | 145078367 | 135120682 |  |  | 135120682 |
| &nbsp;&nbsp;&nbsp;&nbsp;FHLB Stock | 1872500 | 1872500 |  | 1872500 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Bank owned life insurance | 1829180 | 1829180 | 1829180 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | 685515 | 685515 | 685515 |  |  |
| &nbsp;&nbsp;**Financial liabilities:** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Deposits | 134556957 | 137200002 | 91699002 |  | 45501000 |
| &nbsp;&nbsp;&nbsp;&nbsp;FHLB advances | 22000000 | 21993000 |  | 21993000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued interest payable | 157006 | 157006 | 157006 |  |  |

---

*Limitations:* Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company's entire holdings of a particular financial instrument. Fair value estimates may not be realizable in an immediate settlement of the instrument. In some instances, there are no quoted market prices for the Company's various financial instruments, in which case fair values may be based on estimates using present value or other valuation techniques, or based on judgments regarding future expected loss experience, current economic conditions, risk characteristic of the financial instruments, or other factors. Those techniques are significantly affected by the assumptions used, including the discount rate and estimate of future cash flows. Subsequent changes in assumptions could significantly affect the estimates.

#### Note 14:&nbsp;&nbsp;&nbsp;&nbsp;Commitments and Credit Risks
Commitments to originate loans are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer's creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management's

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Since a portion of the line may expire without being drawn upon, the total unused lines do not necessarily represent future cash requirements. Each customer's creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management's credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Management uses the same credit policies in granting lines of credit as it does for on balance sheet instruments. The allowance for credit losses for off balance sheet liabilities was $5,000 at September 30, 2025 and 2024, respectively, and was being held in other liabilities on the balance sheet.

Commitments outstanding were as follows:

---

| | | |
|:---|:---|:---|
|  | **September 30,** <br>**2025** | **September 30,** <br>**2024** |
| Commitments to originate loans | $2445371 | $2516011 |
| Undisbursed balance of loans closed | 7154955 | 7495563 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $9600326 | $10011574 |

---

#### Note 15: &nbsp;&nbsp;&nbsp;&nbsp;Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss, included in consolidated shareholders' equity, are as follows at September 30, 2025 and 2024:

---

| | |
|:---|:---|
|  | **Unrealized Gains**<br>**and Losses on**<br>**Available-for-**<br>**Sale Securities** |
| Accumulated other comprehensive loss at September 30, 2023 | $(860326) |
| &nbsp;&nbsp;Other comprehensive income | 540390 |
| Reclassification adjustment for realized gain on sale of securities | (3406) |
| Accumulated other comprehensive loss at September 30, 2024 | (323342) |
| &nbsp;&nbsp;Other comprehensive loss | (66504) |
| Accumulated other comprehensive loss at September 30, 2025 | $(389846) |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

---

| | | | |
|:---|:---|:---|:---|
|  | **For the Year Ended** | **For the Year Ended** | |
|  | **September 30,** | **September 30,** | |
|  | **2025** | **2024** | <br>**Affected Line Item in Consolidated**<br>**Statements of Income** |
| Unrealized gains (losses) on available for sale securities | $- | $(4311) | Gain (loss) on sale of investments |
|  | - | 905  | Provision for income taxes |
|  | $- | $(3406) |  |

---

**Note 16: Parent Company Only Financial Statements**

**Mercer Bancorp, Inc.**

**Parent Company Balance Sheets**

**September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **September 30,** | **September 30,** |
| **Assets** | **2025** | **2024** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due from Mercer Savings Bank | $2533961 | $3026081 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investment in Mercer Savings Bank | 21893238 | 20753396 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | 46172 | 48088 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred federal income taxes | 92946 | 92945 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets | 57021 | 42015 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total assets | $24623338 | $23962525 |
| **Liabilities and Shareholders' Equity** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Liabilities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued interest payable and other liabilities | - | 9492 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities | - | 9492 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Shareholders' Equity** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total equity | 24623338 | 23953033 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities and equity | $24623338 | $23962525 |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

**Mercer Bancorp, Inc.**

**Parent Company Statements of Income**

**For the Years Ended September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **Year Ended** | **Year Ended** |
|  | **September 30,** | **September 30,** |
|  | **2025** | **2024** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest income on loans | $62201 | $66163 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Equity in earnings of subsidiary | 1192359 | 814163 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total income | 1254560 | 880326 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Salaries and employee benefits | 81844 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Professional services | 200411 | 191927 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total expense | 282255 | 191927 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Income before income taxes**  | 972305 | 688399 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Provision for income taxes**  | - | (4338) |
| &nbsp;&nbsp;&nbsp;&nbsp;**Net Income** | $972305 | $692737 |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

**Mercer Bancorp, Inc.**

**Parent Company Statements of Cash Flows**

**For the Years Ended September 30, 2025 and 2024**

---

| | | |
|:---|:---|:---|
|  | **Year Ended** | **Year Ended** |
|  | **September 30,** | **September 30,** |
|  | **2025** | **2024** |
| &nbsp;&nbsp;&nbsp;&nbsp;**Operating Activities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net income  | $972305 | $692737 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Items not requiring (providing) cash: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Equity in Earnings of Subsidiary | (1192359) | (814163) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ESOP compensation expense | 54551 | 54560 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share based compensation | 81844 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | 1916 | (36043) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets  | (15007) | (1345) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other liabilities | (9492) | (66569) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in operating activities | (106242) | (170823) |
| &nbsp;&nbsp;&nbsp;&nbsp;**Financing Activities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Repurchase of common stock | (385878) | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in financing activities | (385878) | - |
| &nbsp;&nbsp;&nbsp;&nbsp;**Decrease in Cash and Cash Equivalents** | (492120) | (170823) |
| &nbsp;&nbsp;&nbsp;&nbsp;**Cash and Cash Equivalents, Beginning of Period** | 3026081 | 3196904 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Cash and Cash Equivalents, End of Period** | $2533961 | $3026081 |

---

[**Table of Contents**](#TOC)

**Mercer Bancorp, Inc.**

**Notes to Consolidated Financial Statements**

**September 30, 2025 and 2024**

**Note 17: Earnings Per Share**

Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the period. Unallocated common shares held by the Employee Stock Ownership Plan ("ESOP") are not included in the weighted-average number of common shares outstanding for purposes of calculating basic earnings per common share until they are committed to be released.

The following table sets forth the computation of basic and diluted earnings per share:

---

| | | |
|:---|:---|:---|
|  | **Year Ended** | **Year Ended** |
|  | **September 30,**  | **September 30,**  |
|  | **2025** | **2024** |
| Net income | $972305 | $692737 |
| Weighted-average common shares outstanding, gross | 1013346 | 1022970 |
| Less unallocated ESOP shares | 72286 | 78194 |
| Weighted-average common shares outstanding | 941060 | 944776 |
| Basic earnings per share | **$1.03** | **$0.73** |
| Weighted-average common shares outstanding | 941060 | 944776 |
| Diluted effect of share based compensation | 7833 | - |
| Weighted-average common shares outstanding - Diluted | 948893 | 944776 |
| Diluted earnings per share | **$1.02** | **$0.73** |

---

[**Table of Contents**](#TOC)

#### SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **MERCER BANCORP, INC.** | **MERCER BANCORP, INC.** |
| December 19, 2025 | By: | /s/Alvin B. Parmiter |
|  |  | Alvin B. Parmiter |
|  |  | President and Chief Executive Officer |
|  |  | (Duly Authorized Representative) |

---

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Report has been signed below by the following persons on behalf of the Registrant in the capacities and on the dates indicated.

---

| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /s/Alvin B. Parmiter | President, Chief Executive Officer and Director | December 19, 2025 |
| Alvin B. Parmiter | (Principal Executive Officer) |  |
| /s/Sherman E. Crum | Controller | December 19, 2025 |
| Sherman E. Crum | (Principal Financial and Accounting Officer)  |  |
| /s/David L. Keiser | Chairman of the Board of Directors | December 19, 2025 |
| David L. Keiser |  |  |
| /s/ Kristin M. Fee | Vice Chair of the Board of Directors | December 19, 2025 |
| Kristin M. Fee |  |  |
| /s/ Michael J. Boley | Director | December 19, 2025 |
| Michael J. Boley |  |  |
| /s/ Jose W. Faller | Director | December 19, 2025<br>|
| Jose W. Faller |  |  |

---

## Ex-23

**Exhibit 23**

---

| | |
|:---|:---|
| ![Graphic](tmb-20250930xex23002.jpg) | One East Fourth Street, Suite 1200, Cincinnati, Ohio 45202<br>P. 513.241.3111 \| F. 513.241.1212 |

---

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement (No. 333-285259) on Form S-8 of Mercer Bancorp, Inc. of our report dated December 19, 2025, relating to the consolidated financial statements of Mercer Bancorp, Inc. and subsidiary for the year ended September 30, 2025, appearing in this Annual Report in Form 10-K for the year ended September 30, 2025.

/s/ Clark, Schafer, Hackett & Co.

Cincinnati, Ohio

December 19, 2025

![Graphic](tmb-20250930xex23001.jpg)

------

## Exhibit 23.1

![Graphic](tmb-20250930xex23d1001.jpg)

**Exhibit 23.1**

<u>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM</u>

We consent to the incorporation by reference in Registration Statements File No. 333-285259 on Form S-8 of Mercer Bancorp, Inc. of our report dated January 14, 2025, relating to our audit of the consolidated financial statements as of and for the year ended September 30, 2024, which appears in the Annual Report to Shareholders, which is incorporated in this Annual Report on Form 10-K of Mercer Bancorp, Inc..

/s/S.R. Snodgrass, P.C.

Cranberry Township, Pennsylvania

December 19, 2025

---

| | | | |
|:---|:---|:---|:---|
| PITTSBURGH, PA | PHILADELPHIA, PA | WHEELING, WV | STEUBENVILLE, OH |
| 2009 Mackenzie Way • Suite 340<br>Cranberry Township, PA 16066<br>(724) 934-0344 | 161 Washington Street • Suite 200<br>Conshohocken, PA 19428<br>(610) 278-9800 | 980 National Road<br>Wheeling, WV 26003<br>(304) 233-5030 | 511 N. Fourth Street<br>Steubenville, OH 43952<br>(304) 233-5030 |
| S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia | S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia | S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia | S.R. Snodgrass, P.C. d/b/a S.R. Snodgrass, A.C. in West Virginia |

---

------

## Exhibit 31.1

**Exhibit 31.1**

**Certification of Chief Executive Officer**

**Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002**

I, Alvin B. Parmiter, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Annual Report on Form 10-K of Mercer Bancorp, Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| 29<br>|  |
| Date: December 19, 2025 | /s/Alvin B. Parmiter |
|  | Alvin B. Parmiter |
|  | President and Chief Executive Officer |

---

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## Exhibit 31.2

**Exhibit 31.2**

**Certification of Chief Financial Officer**

**Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002**

I, Sherman E. Crum, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Annual Report on Form 10-K of Mercer Bancorp, Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| Date: December 19, 2025 | /s/Sherman E. Crum |
|  | Sherman E. Crum |
|  | Controller |

---

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## Ex-32

**Exhibit 32**

**Certification of Chief Executive Officer and Chief Financial Officer**

**Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002**

Alvin B. Parmiter, President and Chief Executive Officer of Mercer Bancorp, Inc. (the "Company"), and Sherman E. Crum, Controller of the Company, each certify in their capacity as an officer of the Company that they have reviewed the Annual Report on Form 10-K for the year ended September 30, 2024 (the "Report") and that to the best of their knowledge:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. the Report fully complies with the requirements of Sections 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

---

| | |
|:---|:---|
| Date: December 19, 2025 | /s/Alvin B. Parmiter |
|  | Alvin B. Parmiter |
|  | President and Chief Executive Officer |
| Date: December 19, 2025 | /s/Sherman E. Crum |
|  | Sherman E. Crum |
|  | Controller |

---

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

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