NB Bancorp, Inc. 10-K

ITEM 8. Financial Statements and Supplementary Data ​ (a)(1) Financial Statements ​ The documents files as a part of this 10-K are: ​ (A) Report of Independence Registered Public Accounting Firm [PCAOB ID 149 ] (B) Consolidated Balance Sheets as of December 31, 2023 and 2022 (C) Consolidated Statements of Income for the years ended December 31, 2023 and 2022 (D) Consolidated Statements of Comprehensive Income for the years ended December 31, 2023 and 2022 (E) Consolidated Statements of Changes in Shareholders’ Equity for the years ended December 31, 2023 and 2022 (F) Consolidated Statements of Cash Flows for the years ended December 31, 2023 and 2022 (G) Notes to Consolidated Financial Statements ​ 70 Table of Contents Report of Independent Registered Public Accounting Firm To the Shareholders and the Board of Directors of NB Bancorp, Inc. Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of NB Bancorp, Inc. (the “Company”) as of December 31, 2023 and 2022, the related consolidated statements of income, comprehensive income, changes in shareholders’ equity and cash flows for the years 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 December 31, 2023 and 2022, 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. Change in Accounting Principle As discussed in Note 1 to the financial statements, the Company has elected to change its method of accounting for credit losses effective January 1, 2023 due to the adoption of Financial Accounting Standards Board Accounting Standards Codification No. 326, Financial Instruments – Credit Losses (ASC 326). The Company adopted the new credit loss standard using the modified retrospective method such that prior period amounts are not adjusted and continue to be reported in accordance with previously applicable generally accepted accounting principles. ​ 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 audits. 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 audits 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 audits 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 audits 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. /s/ Elliott Davis, LLC We have served as the Company's auditor since 2023. Columbia, South Carolina March 28, 2024 71 Table of Contents NB Bancorp, Inc. Consolidated Balance Sheets December 31, 2023 and 2022 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Assets ​ ​ ​ ​ ​ ​ Cash and due from banks ​ $ 90,485 ​ $ 131,073 Federal funds sold ​ ​ 182,106 ​ ​ 25,472 Total cash and cash equivalents ​ ​ 272,591 ​ ​ 156,545 ​ ​ ​ ​ ​ ​ ​ Available-for-sale securities, at fair value ​ ​ 189,465 ​ ​ 245,480 ​ ​ ​ ​ ​ ​ ​ Loans receivable ​ ​ 3,889,279 ​ ​ 3,015,445 Allowance for credit losses ​ ​ ( 32,222 ) ​ ​ ( 25,028 ) Net loans ​ ​ 3,857,057 ​ ​ 2,990,417 ​ ​ ​ ​ ​ ​ ​ Accrued interest receivable ​ ​ 17,284 ​ ​ 10,837 Banking premises and equipment, net ​ ​ 35,531 ​ ​ 35,344 Depositors Insurance Fund stock ​ ​ 139 ​ ​ 139 Federal Home Loan Bank stock ​ ​ 14,558 ​ ​ 13,182 Federal Reserve Bank stock ​ ​ 10,323 ​ ​ 8,104 Non-public investments ​ ​ 13,713 ​ ​ 10,592 Bank owned life insurance ("BOLI") ​ ​ 50,516 ​ ​ 49,006 Prepaid expenses and other assets ​ ​ 53,109 ​ ​ 57,167 Income tax refunds receivable ​ ​ — ​ ​ 4,134 Deferred income tax asset ​ ​ 19,126 ​ ​ 11,388 Total assets ​ $ 4,533,412 ​ $ 3,592,335 ​ ​ ​ ​ ​ ​ ​ Liabilities and shareholders' equity ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ $ 3,387,348 ​ $ 2,886,743 Mortgagors' escrow accounts ​ ​ 4,229 ​ ​ 4,064 FHLB Borrowings ​ ​ 283,338 ​ ​ 293,082 Accrued expenses and other liabilities ​ ​ 81,325 ​ ​ 52,399 Accrued retirement liabilities ​ ​ 19,213 ​ ​ 11,982 Total liabilities ​ ​ 3,775,453 ​ ​ 3,248,270 ​ ​ ​ ​ ​ ​ ​ Commitments and contingencies (Notes 2, 6, 8 & 12) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shareholders' equity ​ ​ ​ ​ ​ ​ Preferred stock, $ 0.01 par value, 5,000,000 shares authorized; no shares issued and outstanding ​ ​ — ​ ​ — Common shares, $ 0.01 par value, 120,000,000 shares authorized; 42,705,729 shares issued and outstanding at December 31, 2023; no shares issued and outstanding at December 31, 2022 ​ ​ 427 ​ ​ — Additional paid in capital ​ ​ 417,030 ​ ​ — Unallocated common shares held by the Employee Stock Ownership Plan ​ ​ ( 13,774 ) ​ ​ — Retained earnings ​ ​ 366,173 ​ ​ 358,466 Accumulated other comprehensive loss ​ ​ ( 11,897 ) ​ ​ ( 14,401 ) Total shareholders' equity ​ ​ 757,959 ​ ​ 344,065 ​ ​ ​ ​ ​ ​ ​ Total liabilities and shareholders' equity ​ $ 4,533,412 ​ $ 3,592,335 ​ The accompanying notes are an integral part of these consolidated financial statements. 72 Table of Contents NB Bancorp, Inc. Consolidated Statements of Income For the Years Ended December 31, 2023 and 2022 (Dollars in thousands, except per share amounts) ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended ​ ​ December 31 ​ 2023 2022 INTEREST AND DIVIDEND INCOME ​ ​ ​ ​ ​ ​ Interest and fees on loans ​ $ 211,973 ​ $ 113,760 Interest on investments securities ​ ​ 4,773 ​ ​ 4,954 Interest on cash equivalents and other ​ ​ 3,755 ​ ​ 1,798 Total interest and dividend income ​ ​ 220,501 ​ ​ 120,512 ​ ​ ​ ​ ​ ​ ​ INTEREST EXPENSE ​ ​ ​ ​ ​ ​ Interest on deposits ​ ​ 76,394 ​ ​ 12,689 Interest on FHLB borrowings ​ ​ 14,050 ​ ​ 2,859 Total interest expense ​ ​ 90,444 ​ ​ 15,548 ​ ​ ​ ​ ​ ​ ​ NET INTEREST INCOME ​ ​ 130,057 ​ ​ 104,964 ​ ​ ​ ​ ​ ​ ​ PROVISION FOR CREDIT LOSSES ​ ​ ​ ​ ​ ​ Provision for credit losses - allowance for credit losses ​ ​ 9,657 ​ ​ 6,700 Provision for credit losses - allowance for unfunded commitments ​ ​ 4,228 ​ ​ — Total provision for credit losses ​ ​ 13,885 ​ ​ 6,700 ​ ​ ​ ​ ​ ​ ​ NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES ​ ​ 116,172 ​ ​ 98,264 ​ ​ ​ ​ ​ ​ ​ NONINTEREST INCOME ​ ​ ​ ​ ​ ​ Gain from bargain purchase and assumption agreement ​ ​ — ​ ​ 1,070 Customer service fees ​ ​ 7,817 ​ ​ 5,138 Increase in cash surrender value of BOLI ​ ​ 1,510 ​ ​ 1,157 Mortgage banking income ​ ​ 581 ​ ​ 595 Swap contract income ​ ​ 2,153 ​ ​ 1,262 Employee retention credit income ​ ​ 3,452 ​ ​ — Other income ​ ​ 64 ​ ​ 53 Total noninterest income ​ ​ 15,577 ​ ​ 9,275 ​ ​ ​ ​ ​ ​ ​ NONINTEREST EXPENSE ​ ​ ​ ​ ​ ​ Salaries and employee benefits ​ ​ 68,344 ​ ​ 47,466 Director and professional service fees ​ ​ 6,232 ​ ​ 4,758 Occupancy and equipment expenses ​ ​ 5,192 ​ ​ 4,354 Data processing expenses ​ ​ 7,500 ​ ​ 5,657 Charitable contribution expense ​ ​ 20,335 ​ ​ 1,066 Marketing expense ​ ​ 2,747 ​ ​ 2,338 FDIC and state insurance assessments ​ ​ 4,707 ​ ​ 1,829 General and administrative expenses ​ ​ 4,848 ​ ​ 3,683 Total noninterest expense ​ ​ 119,905 ​ ​ 71,151 ​ ​ ​ ​ ​ ​ ​ INCOME BEFORE TAXES ​ ​ 11,844 ​ ​ 36,388 ​ ​ ​ ​ ​ ​ ​ INCOME TAXES ​ ​ 2,019 ​ ​ 6,323 ​ ​ ​ ​ ​ ​ ​ NET INCOME ​ $ 9,825 ​ $ 30,065 ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ ​ 42,018,229 ​ ​ N/A Earnings per share (basic) ​ $ 0.23 ​ ​ N/A Earnings per share (diluted) ​ $ 0.23 ​ ​ N/A ​ The accompanying notes are an integral part of these consolidated financial statements. 73 Table of Contents ​ NB Bancorp, Inc. Consolidated Statement of Comprehensive Income For the Years Ended December 31, 2023 and 2022 (In thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended ​ ​ December 31 ​ 2023 2022 NET INCOME ​ $ 9,825 ​ $ 30,065 ​ ​ ​ ​ ​ ​ ​ OTHER COMPREHENSIVE INCOME (LOSSES): ​ ​ ​ ​ ​ ​ Unrealized Holding Gains (Losses) on AFS Securities ​ ​ 3,740 ​ ​ ( 17,657 ) Unrecognized Pension Losses on Director Pension Plan ​ ​ ( 106 ) ​ ​ ( 200 ) Unrealized Holding (Losses) Gains on Cash Flow Hedge ​ ​ ( 321 ) ​ ​ 1,548 OTHER COMPREHENSIVE INCOME (LOSS), BEFORE TAX PROVISIONS ​ ​ 3,313 ​ ​ ( 16,309 ) INCOME TAX (BENEFIT) PROVISIONS ​ ​ ( 809 ) ​ ​ 4,180 OTHER COMPREHENSIVE INCOME (LOSS), AFTER TAX PROVISIONS ​ ​ 2,504 ​ ​ ( 12,129 ) COMPREHENSIVE INCOME ​ $ 12,329 ​ $ 17,936 ​ The accompanying notes are an integral part of these consolidated financial statements. ​ 74 Table of Contents NB Bancorp, Inc. Consolidated Statement of Changes in Shareholders’ Equity For the Years Ended December 31, 2023 and 2022 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shares of ​ ​ ​ ​ ​ ​ Accumulated Unallocated ​ ​ ​ ​ Common ​ Additional ​ Other ​ Common Total ​ ​ Stock Common Paid Retained Comprehensive ​ Stock Held Shareholders' ​ ​ Outstanding Stock in Capital Earnings Income (Loss) ​ by ESOP Equity Balance at December 31, 2021 ​ — $ — $ — $ 328,401 $ ( 2,272 ) $ — $ 326,129 Net income ​ — ​ — ​ — ​ 30,065 ​ — ​ — ​ 30,065 Other comprehensive loss, net of tax ​ — ​ — ​ — ​ — ​ ( 12,129 ) ​ — ​ ( 12,129 ) Balance at December 31, 2022 ​ — $ — $ — $ 358,466 $ ( 14,401 ) $ — $ 344,065 Adoption of ASU 2016-13 ​ — ​ — ​ — ​ ( 2,118 ) ​ — ​ — ​ ( 2,118 ) Net income ​ — ​ — ​ — ​ 9,825 ​ — ​ — ​ 9,825 Other comprehensive income, net of tax ​ — ​ — ​ — ​ — ​ 2,504 ​ — ​ 2,504 Proceeds of stock offering and issuance of common shares (net of costs of $ 9,600 ) ​ 40,997,500 ​ 410 ​ 399,965 ​ — ​ — ​ — ​ 400,375 Issuance of common shares donated to Needham Bank Charitable Foundation ​ 1,708,229 ​ 17 ​ 17,065 ​ — ​ — ​ — ​ 17,082 Purchase of common shares by the ESOP ( 1,000,000 shares) ​ — ​ — ​ — ​ — ​ — ​ ( 13,774 ) ​ ( 13,774 ) Balance at December 31, 2023 ​ 42,705,729 $ 427 $ 417,030 $ 366,173 $ ( 11,897 ) $ ( 13,774 ) $ 757,959 ​ ​ The accompanying notes are an integral part of these consolidated financial statements. ​ 75 Table of Contents NB Bancorp, Inc. Consolidated Statements of Cash Flows For the Years Ended December 31, 2023 and 2022 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2023 2022 CASH FLOWS FROM OPERATING ACTIVITIES ​ ​ ​ ​ ​ ​ Net income ​ $ 9,825 ​ $ 30,065 Adjustments to reconcile net income to net cash from operating activities: ​ ​ ​ ​ ​ ​ Net (accretion) amortization of investment securities ​ ​ ( 240 ) ​ ​ 71 Gain from bargain purchase and assumption agreement ​ ​ — ​ ​ ( 1,070 ) Amortization of core deposit intangible ​ ​ 149 ​ ​ 111 Provision for credit losses ​ ​ 13,885 ​ ​ 6,700 Loan hedge fair value adjustments, including amortization ​ ​ 161 ​ ​ 502 Change in net deferred loan origination fees ​ ​ 4,419 ​ ​ 2,522 Mortgage loans originated for sale ​ ​ ( 2,400 ) ​ ​ ( 1,840 ) Proceeds from sale of mortgage loans held for sale ​ ​ 2,405 ​ ​ 1,887 Gain on sale of mortgage loans ​ ​ ( 5 ) ​ ​ ( 47 ) Depreciation and amortization expense ​ ​ 2,678 ​ ​ 2,363 Increase in cash surrender values of bank-owned life insurance ​ ​ ( 1,510 ) ​ ​ ( 1,157 ) Deferred income taxes (credits) ​ ​ ( 7,720 ) ​ ​ ( 1,253 ) Changes in operating assets and liabilities: ​ ​ ​ ​ ​ ​ Accrued interest receivable ​ ​ ( 6,447 ) ​ ​ ( 3,299 ) Prepaid expenses and other assets ​ ​ 3,909 ​ ​ ( 22,800 ) Income tax refunds receivable ​ ​ 4,134 ​ ​ ( 4,149 ) Accrued expenses and other liabilities ​ ​ 22,591 ​ ​ 27,221 Accrued retirement liabilities ​ ​ 7,125 ​ ​ 3,887 NET CASH PROVIDED FROM OPERATING ACTIVITIES ​ ​ 52,959 ​ ​ 39,714 ​ ​ ​ ​ ​ ​ ​ CASH FLOWS FROM INVESTING ACTIVITIES ​ ​ ​ ​ ​ ​ Loan originations and pools purchased, net of repayments ​ ​ ( 882,036 ) ​ ​ ( 913,800 ) Purchases of available-for-sale securities ​ ​ ( 43,590 ) ​ ​ ( 174,053 ) Maturities, calls and principal repayments of available-for-sale securities ​ ​ 103,585 ​ ​ 170,595 Purchases of Federal Home Loan Bank stock, net ​ ​ ( 1,376 ) ​ ​ ( 10,896 ) Purchases of Federal Reserve Bank stock, net ​ ​ ( 2,219 ) ​ ​ ( 508 ) Net change in non-public investments ​ ​ ( 3,121 ) ​ ​ ( 6,306 ) Cash acquired under purchase and assumption agreement ​ ​ — ​ ​ 297,671 Premiums paid on bank-owned life insurance ​ ​ — ​ ​ ( 22,198 ) Purchases of banking premises and equipment ​ ​ ( 2,865 ) ​ ​ ( 8,498 ) NET CASH USED IN INVESTING ACTIVITIES ​ ​ ( 831,622 ) ​ ​ ( 667,993 ) ​ ​ ​ ​ ​ ​ ​ CASH FLOWS FROM FINANCING ACTIVITIES ​ ​ ​ ​ ​ ​ Net change in deposits ​ ​ 500,605 ​ ​ 24,534 Net change in mortgagors' escrow accounts ​ ​ 165 ​ ​ 414 Net proceeds from stock offering and issuance of common shares ​ ​ 417,457 ​ ​ — Purchase of common shares by the ESOP ​ ​ ( 13,774 ) ​ ​ — Increase (decrease) in FHLB borrowings, net ​ ​ ( 9,744 ) ​ ​ 292,826 NET CASH PROVIDED FROM FINANCING ACTIVITIES ​ ​ 894,709 ​ ​ 317,774 ​ ​ ​ ​ ​ ​ ​ RESULTING IN A NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS ​ ​ 116,046 ​ ​ ( 310,505 ) ​ ​ ​ ​ ​ ​ ​ CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD ​ ​ 156,545 ​ ​ 467,050 ​ ​ ​ ​ ​ ​ ​ CASH AND CASH EQUIVALENTS AT END OF PERIOD ​ $ 272,591 ​ $ 156,545 ​ ​ ​ ​ ​ ​ ​ Supplemental disclosure of cash paid during the period for: ​ ​ ​ ​ ​ ​ Interest ​ $ 88,746 ​ $ 6,585 Income taxes ​ $ 4,791 ​ $ 8,561 ​ ​ ​ ​ ​ ​ ​ Supplemental disclosure of non-cash transactions: ​ ​ ​ ​ ​ ​ Cumulative effect adjustment due to adoption of CECL accounting standard under ASC 326, net of income taxes ​ $ ( 2,118 ) ​ $ — Initial recognition of right of use assets under ASC 842 ​ ​ — ​ ​ ( 1,505 ) Initial recognition of operating lease liabilities under ASC 842 ​ ​ — ​ ​ 1,505 Unrealized gains (losses) on securities available for sale ​ ​ 731 ​ ​ ( 19,006 ) Unrecognized Pension Losses on Director Pension Plan ​ ​ 106 ​ ​ — Unrealized holding (losses) gains on cash flow hedge ​ ​ ( 321 ) ​ ​ 1,814 The accompanying notes are an integral part of these consolidated financial statements. ​ 76 Table of Contents NB Bancorp, Inc. Notes to Consolidated Financial Statements Note 1 – Organization, Activities and Significant Accounting Policies Corporate Structure and Nature of Operations NB Bancorp, Inc. (the “Company”), a Maryland corporation, is a bank holding company. Through its wholly-owned subsidiary, Needham Bank (the “Bank”), the Company provides a variety of banking services, through its full-service bank branches, located in Massachusetts. The Bank’s deposits are insured by the Deposit Insurance Fund of the Federal Deposit Insurance Corporation (FDIC) up to federal limits. All deposits above the FDIC insurance amount are insured by the Depositors Insurance Fund (DIF). The DIF is a private, industry-sponsored insurance fund that insures all deposits above FDIC limits at our member banks. The Bank provides numerous services to customers, including the maintenance of checking, savings, money market and certificate of deposit accounts, and the granting of several types of residential, construction, commercial, and consumer loans. The primary market area of the Company is the metro-west area of Boston and surrounding communities, with headquarters in Needham and branch locations in Wellesley, Westwood, Dedham, Medfield, Medford, Dover, Ashland, Millis, Natick and Mission Hill. The Bank is subject to competition from other financial institutions, including commercial banks, other savings and co-operative banks, credit unions, mortgage banking companies, and other financial service providers. The primary regulators of the Company are the Massachusetts Commissioner of Banks and the Federal Reserve System (see Note 11, Regulatory Capital Requirements). As part of the criteria for membership in the Federal Reserve System, the Company is required to maintain stock in the Federal Reserve Bank (see Note 2, Investment Securities). Conversion and Reorganization Pursuant to a Plan of Conversion (the “Plan”), NB Financial, MHC (the “MHC”), the Bank’s former mutual holding company parent and the predecessor of the Company, converted from a mutual holding company into a publicly traded stock form of organization on December 27, 2023. In connection with the conversion, the MHC transferred to the Company 100 % of MHC’s common stock, and immediately thereafter merged into the Company. Pursuant to the Plan, the Company sold 40,997,500 shares of common stock in a public offering at $ 10.00 per share for net offering proceeds of approximately $ 400.4 million. The Company completed the offering on December 27, 2023. Effective as of December 27, 2023, the Company donated $ 2.0 million of cash and 1,708,229 shares of common stock to Needham Bank Charitable Foundation (the “Foundation”). A total of 42,705,729 shares of common stock of the Company were issued and outstanding immediately after the donation to the Foundation. After the completion of the conversion, the Bank’s employee stock ownership plan (the “ESOP”) purchased 1,000,000 shares of the Company’s common stock. The cost of conversion and issuing the capital stock was deferred and deducted from the proceeds of the offering. As of December 31, 2023, the Company incurred approximately $ 9.6 million in conversion costs, which are included in shareholders’ equity on the consolidated balance sheet as of December 31, 2023. In connection with the conversion, liquidation accounts are established by the Company and the Bank in an aggregate amount equal to (i) the MHC’s ownership interest in the shareholders’ equity of NB Financial, Inc. as of the date of the latest statement of financial condition included in the Company’s definitive prospectus dated October 12, 2023, plus (ii) the value of the net assets of the MHC as of the date of the MHC’s latest statement of financial condition before the consummation of the Conversion (excluding the MHC’s ownership interest in NB Financial, Inc.). Each eligible account holder and supplemental eligible account holder is entitled to a proportionate share of the liquidation accounts in the event of a liquidation of (i) the Company and the Bank or (ii) the Bank, and only in such events. This share will be reduced if the eligible account holder’s or supplemental account holder’s deposit balance falls below the amounts on the date of record and will cease to exist if the account is closed. The liquidation account will never be increased despite any increase after conversion in the related deposit balance. The Bank may not pay a dividend on its capital stock if the effect thereof would cause retained earnings to be reduced below the liquidation account amount or regulatory capital requirements. 77 Table of Contents Basis of Presentation The Company’s consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States (“GAAP”) as set forth by the Financial Accounting Standards Board (“FASB”) and its Accounting Standards Codification (“ASC”) and Accounting Standards Update (“ASU”) as well as the rules and interpretive releases of the Securities and Exchange Commission (the “SEC”) under the authority of federal securities laws. The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries, and entities in which it holds a controlling financial interest through being the primary beneficiary or through holding a majority of the voting interest. All intercompany accounts and transactions have been eliminated in consolidation. Certain previously reported amounts have been reclassified to conform to the current year's presentation. Operating Segments Accounting standards require that information be reported about a company’s operating segments using a “management approach.” Reportable segments are identified in these standards as those revenue producing components for which separate financial information is produced internally and which are subject to evaluation by the chief operating decision maker. While the chief operating decision maker monitors the revenue streams of the various products and services, operations are managed, and financial performance is evaluated on a Company-wide basis. Accordingly, all of the financial service operations are considered by management to be aggregated in one reportable segment. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for credit losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, the valuation of deferred tax assets, actuarial estimates related to the Company’s various retirement programs, and the valuation of financial instruments. In connection with the determination of the allowances for credit losses on loans and foreclosed real estate, management obtains independent appraisals for significant properties. A majority of the Company's loan portfolio consists of one to four-family residential, commercial real estate, construction and land development loans in the metro-west area of Boston and its surrounding communities. Accordingly, the ultimate collectability of a substantial portion of the Company's loan portfolio and the recovery of the carrying amount of foreclosed real estate are susceptible to changes in local market conditions. While management uses currently available information to recognize losses on loans and foreclosed real estate, future additions to the allowances for credit losses on loans and foreclosed real estate may be necessary based on changes in local economic conditions. In addition, regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowances for credit losses on loans and foreclosed real estate. Such agencies may require the Company to recognize additions to the allowances based on their judgments about information available to them at the time of their examination. Because of these factors, it is reasonably possible that the allowance for losses on loans and foreclosed real estate may change in the near future. Summary of Significant Accounting Policies Adoption of New Accounting Standards – On January 1, 2023, the Company adopted FASB ASU No. 2016-13 –Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”) along with amendments ASU 2019-11 - Codification Improvements to Topic 326, Financial Instruments – Credit Losses, and ASU 2022-02 - Financial Instruments – Credit Losses (Topic 326): Troubled Debt Restructurings and 78 Table of Contents Vintage Disclosures (“ASU 2022-02”). Together, these ASUs, referred to herein as ASC 326, replace the incurred loss impairment methodology with the current expected credit loss methodology (“CECL”) and require consideration of a broader range of information to determine credit loss estimates at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASC 326 applies to financial assets subject to credit losses that are measured at amortized cost and certain off-balance sheet credit exposures, which include, but are not limited to, loans receivable, leases, held-to-maturity (“HTM”) securities, loan commitments, and financial guarantees. In addition, ASC 326 made changes to the accounting for available for sale (“AFS”) debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on available for sale debt securities if management does not intend to sell and does not believe that it is more likely than not, they will be required to sell. The Company adopted ASC 326 using the prospective transition approach for debt securities for which other-than-temporary impairment had been recognized prior to January 1, 2023. As of December 31, 2022, the Company did not have any other than-temporarily impaired investment securities. Upon adoption of ASC 326, the Company determined that an allowance for credit losses on available for sale securities was not required. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures, which included loans receivable and commitments to extend credit (loan commitments and stand-by letters of credit), respectively. The Company does not have any securities classified as HTM. Results for reporting periods beginning after January 1, 2023 are presented under ASC 326 while prior period amounts are reported in accordance with previously applicable GAAP. The following table presents the impact to the consolidated balance sheet as the result of adopting ASC 326 effective January 1, 2023. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ January 1, 2023 ​ December 31, 2022 ​ Impact of ​ ​ Post-ASC 326 ​ Pre-ASC 326 ​ ASC 326 (In thousands) Adoption Adoption Adoption Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans receivable, net of deferred fees and costs ​ $ 3,015,445 ​ $ 3,015,445 ​ $ — Allowance for credit losses ​ ​ ( 26,187 ) ​ ​ ( 25,028 ) ​ ​ ( 1,159 ) Deferred income tax asset ​ ​ 7,862 ​ ​ 7,035 ​ ​ 827 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Reserve for unfunded commitments ​ ​ ( 1,786 ) ​ ​ — ​ ​ ( 1,786 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Equity: ​ ​ ​ ​ ​ ​ ​ ​ ​ Retained earnings ​ ​ 356,348 ​ ​ 358,466 ​ ​ ( 2,118 ) ​ On January 1, 2023, the Company on a modified retrospective basis early adopted ASU 2023-02, Investments – Equity Method and Joint Ventures (Topic 323): Investments in Tax Credit Structures . This ASU allows reporting entities to elect to account for qualifying tax equity investments using the proportional amortization method ("PAM"), regardless of the program giving rise to the related income tax credits. Previously, reporting entities were permitted to apply PAM only to qualifying tax equity investments in low-income housing tax credit structures ("LIHTCs"). The new guidance was effective for public business entities for fiscal years, including interim periods within, beginning after December 15, 2023. Early adoption is permitted, and the amendments are applied either on a modified retrospective or retrospective basis. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. Loans Receivable and Allowance for Credit Losses (“ACL”) – Loans that management has the intent and ability to hold for the foreseeable future or until loan maturity or pay-off are reported held for investment at their outstanding principal balance adjusted for any charge-offs and net of any deferred fees (including purchase accounting adjustments) and origination costs (collectively referred to as “amortized cost”). Loan origination fees and certain direct origination costs are deferred and amortized as an adjustment of the yield using the payment terms required by the loan contract. 79 Table of Contents Loans are generally placed into nonaccrual status when they are past due 90 days or more as to either principal or interest or when, in the opinion of management, the collection of principal and/or interest is in doubt. A loan remains in nonaccrual status until the loan is current as to payment of both principal and interest or past due less than 90 days and the borrower demonstrates the ability to pay and remain current. When cash payments are received, they are applied to principal first, then to accrued interest. It is the Company’s policy not to record interest income on nonaccrual loans until principal has become current. In certain instances, accruing loans that are past due 90 days or more as to principal or interest may not go on nonaccrual status if the Company determines that the loans are well-secured and are in the process of collection. In accordance with ASC 326, the Company elected to exclude accrued interest from the amortized cost basis in its determination of the ACL for loans receivable, and will instead reverse accrued but unpaid interest through interest income in the period in which the loan is placed on nonaccrual status. Accrued interest receivable on loans amounted to approximately $ 16.1 million and $ 9.7 million as of December 31, 2023 and 2022, respectively. The ACL represents management’s best estimate of credit losses over the remaining life of the loan portfolio. Loans are charged-off against the ACL when management believes the loan balance is no longer collectible. Subsequent recoveries of previously charged-off amounts are recorded as increases to the ACL. The provision for credit losses is an amount sufficient to bring the ACL to an estimated balance that management considers adequate to absorb lifetime expected losses in the Company’s held for investment loan portfolio. The ACL is a valuation account that is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on the loans. Management’s determination of the adequacy of the ACL under ASC 326 is based on an evaluation of the composition of the loan portfolio current economic conditions, historical loan loss experience, reasonable and supportable forecasts, and other risk factors. The Company uses a third-party CECL model as part of its estimation of the ACL on a quarterly basis. Loans with similar risk characteristics are collectively assessed within pools (or segments). Loss estimates within the collectively assessed population are based on a combination of pooled assumptions and loan-level characteristics. The Company has determined that using federal call codes is an appropriate loan segmentation methodology, as it is generally based on risk characteristics of a loan’s underlying collateral. Using federal call codes also allows the Company to utilize and assess publicly available external information when developing its estimate of the ACL. The weighted average remaining maturity (“WARM”) method is the primary credit loss estimation methodology used by the Company and involves estimating future cash flows and expected credit losses for pools of loans using their expected remaining weighted average life. In applying future economic forecasts, the Company utilizes a forecast period of up to two years. The Company considers economic forecasts of inflation, Federal Open Market Committee interest rates, national gross domestic product, and unemployment rates sourced from the Federal Reserve System’s “Beige Book,” Wells Fargo’s “U.S. Economic Outlook,” and the “Economic Forecast” publications from FHN Financial to inform the model for loss estimation. Historical loss rates used in the quantitative model are primarily derived using both the Bank’s data, supplemented with peer bank data obtained from publicly available sources (i.e., federal call reports). The Bank’s peer group is comprised of financial institutions of relatively similar size and in similar markets (i.e., $ 10.00 billion or less of total assets and headquartered in Massachusetts). Management also considers qualitative adjustments when estimating credit losses to take into account the model’s quantitative limitations. Qualitative adjustments to quantitative loss factors, either negative or positive, may include considerations of economic conditions, volume and severity of past due loans, value of underlying collateral, experience, depth, and ability of management, and concentrations of credit. For those loans that do not share similar risk characteristics, the Company evaluates the ACL needs on an individual (or loan by loan) basis. This population of individually evaluated loans (or loan relationships with the same primary source of repayment) is determined on a quarterly basis and is based on whether the risk grade of the loan is substandard or worse and the balance exceeds $ 500,000 , and the loan’s terms differ significantly from other pooled loans. In accordance with the Company’s policy, non-accrual residential real estate loans that are well secured (LTV < 75 %) are not considered to warrant a downgrade to substandard risk rating and are therefore excluded from individually evaluated loans. Measurement of credit loss is based on the expected future cash flows of an individually evaluated loan, discounted at the loan’s effective interest rate, or measured on an observable market value, if one exists, or the estimated market value of the collateral underlying the loan, discounted to consider estimated costs to sell the collateral for collateral-dependent loans. If the net value is less than the loan’s amortized cost, a specific reserve in the ACL is recorded, which is charged-off in the period when management believes the loan balance is no longer collectible. 80 Table of Contents The Company’s Allowance Committee approves the key methodologies and assumptions, as well as the final ACL on a quarterly basis. While management uses available information at the time of estimation to determine expected credit losses on loans, future changes in the ACL may be necessary based on changes in portfolio composition, portfolio credit quality, and/or economic conditions. In addition, bank regulatory agencies periodically review its ACL and may require an increase in the provision for credit losses or the recognition of further loan charge-offs, based on judgments different than those of management. Upon the adoption of ASC 326, the Company recognized an adjustment to retained earnings in the amount of $ 2.1 million, and recorded an adjustment to the allowance for credit losses in loans of approximately of $ 1.2 million and unfunded commitments on loans in the amount of approximately $ 1.8 million, net of deferred taxes of approximately $ 827,000 . Subsequent to the CECL adoption, management refined the modeling assuming and enhanced the CECL calculation, including the reserve for unfunded commitments, specifically regarding the probability of funding assumptions related to unfunded commitments and enhanced the qualitative analysis used in the determination of expected credit losses. The impact of these changes, in addition to growth in the unfunded commitment balances resulted in provisions for credit losses of $ 4.2 million. Collateral-dependent Loans – The Company has certain loans for which repayment is dependent upon the operation or sale of collateral, as the borrower is experiencing financial difficulty. The underlying collateral can vary based upon the type of loan. The following provides more detail about the types of collateral that secure collateral-dependent loans: ● Commercial real estate loans may be secured by either owner occupied commercial real estate or non-owner-occupied investment commercial real estate. Typically, owner occupied commercial real estate loans are secured by office buildings, warehouses, manufacturing facilities, and other commercial and industrial properties occupied by operating companies. Repayment is generally from the cash flows of the business occupying the property. Non-owner occupied commercial real estate loans are generally secured by office buildings and complexes, retail facilities, multifamily complexes, land under development, industrial properties, as well as other commercial or industrial real estate. ● Commercial and industrial loans may be secured by non-real estate collateral such as accounts receivable, inventory, equipment, or other similar assets. ● Residential real estate loans are typically secured by first mortgages, and in some cases could be secured by a second mortgage. ● Home equity lines of credit are generally secured by second mortgages on residential real estate property. ● Consumer loans are generally secured by boat and recreational vehicles, automobiles, solar panels and other personal property. Some consumer loans are unsecured, have no underlying collateral, and would not be considered collateral-dependent. Modified Loans – ASU 2022-22 eliminated the concept of troubled debt restructurings (“TDRs”) from the accounting standards for companies that have adopted ASC 326. ASU 2022-02 also requires additional disclosures for certain loan modifications and disclosures of gross charge-offs by year of origination. Specifically, loan modification disclosures in periods subsequent to the adoption of ASC 326 must be made for modifications of existing loans to borrowers who were experiencing financial difficulties at the time of the modification. The modification type must include a direct change in the timing or amount of a loan’s contractual cash flows. The additional disclosures are applicable to situations where there is: principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay, a term extension, or any combination thereof. Available for Sale Securities – The Company evaluates the fair value and credit quality of its AFS securities portfolio on a quarterly basis. In the event the fair value of a security falls below its amortized cost basis, the security is evaluated to determine whether the decline in value was caused by changes in market interest rates or security credit quality. The primary indicators of credit quality for the Company’s AFS securities portfolio are security type and credit rating, which 81 Table of Contents is influenced by a number of security-specific factors that may include obligor cash flow, geography, seniority, and others. If unrealized losses are related to credit quality, the Company estimates the credit-related loss by evaluating the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. Subsequent to the adoption of ASC 326, if the present value of cash flows expected to be collected is less than the amortized cost basis of the security and a credit loss exists, then an ACL is recorded for the credit loss, limited by the amount that the fair value is less than amortized cost basis. As of December 31, 2022, the Company did not have any other-than-temporarily impaired AFS securities. Upon adoption of ASC 326, the Company determined that an ACL on AFS securities was not warranted. As of December 31, 2023, there was no allowance for credit losses related to the available for sale portfolio. For AFS debt securities, management evaluates all investments in an unrealized loss position on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. If the Company has the intent to sell the security or it is more likely than not that the Company will be required to sell the security, the security is written down to fair value and the entire loss is recorded in earnings through an allowance for credit loss. If either of the above criteria is not met, the Company evaluates whether the decline in fair value is the result of credit losses or other factors. In making the assessment, the Company may consider various factors including the extent to which fair value is less than amortized cost, performance on any underlying collateral, downgrades in the ratings of the security by a rating agency, the failure of the issuer to make scheduled interest or principal payments and adverse conditions specifically related to the security. If the assessment indicates that a credit loss exists, the present value of cash flows expected to be collected are compared to the amortized cost basis of the security and any excess is recorded as an allowance for credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any amount of unrealized loss that has not been recorded through an allowance for credit loss is recognized in other comprehensive income. Changes in the allowance for credit loss are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance for credit loss when management believes an available for sale security is confirmed to be uncollectible or when either of the criteria regarding intent or requirement to sell is met. As of December 31, 2023, there was no allowance for credit loss related to the available- for-sale portfolio. Accrued interest receivable on available for sale debt securities totaled $ 1.2 million at December 31, 2023 and was excluded from the estimate of credit losses. Purchase premiums and discounts are recognized in interest income, using the interest method, to arrive at periodic interest income at a constant effective yield, thereby reflecting the securities' market yield. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. Such gains and losses are recognized within non-interest income in the consolidated statements of income. Reserve for 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 reserve for unfunded commitments is adjusted as a provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur, the existence of any third-party guarantees, and an estimate of credit losses on commitments expected to be funded using the same loss rates of similar financial instruments derived in the estimation of ACL for loans receivable. Upon the adoption of ASC 326, the Company recorded an increase in its reserve for unfunded commitments of $ 1.8 million (included in accrued expenses and other liabilities), which after related income tax effects, reduced equity by $ 1.3 million. ​ Comprehensive Income – Under generally accepted accounting principles, "comprehensive income" is defined as the change in equity during a period due to transactions, events and circumstances arising from non-owner sources. Comprehensive income includes net income under generally accepted accounting principles as well as "other comprehensive income” (“OCI”), which consists of items that are excluded from net income and reported as changes in separate components of equity as required by other accounting standards. The Company's OCI consists of unrealized gains and losses on investment securities available for sale (see Note 2), unrealized gains and losses on interest rate swap agreements (see Note 14) and unrecognized pension costs (see Note 9). The Company presents the components of OCI in a separate consolidated statement of comprehensive income (see Note 15). Fair Value Measurements – The Company follows the provisions of ASC Topic 820, “Fair Value Measurements and Disclosures”, for assets and liabilities that are measured and recorded at fair value, and to determine fair value disclosures. 82 Table of Contents This standard defines fair value and establishes a framework for measuring fair value. This standard applies to certain other existing accounting pronouncements that require or permit fair value measurements (see Note 13). Cash and Cash Equivalents – For purposes of the consolidated balance sheet and statement of cash flows, cash and cash equivalents include cash and due from banks, short-term investments, and federal funds sold deposited in other financial institutions that mature within ninety days. Other Investments – Investments in mutually-owned banking organizations (Depositors Insurance Fund, Federal Home Loan Bank and Federal Reserve Bank), cooperative organizations (Connecticut On-Line Computer Center “COCC”), and non-controlling interests in privately-held companies (Jassby, Reinventure Capital, and LearnLaunch Fund), have no quoted market values and are carried at original cost, less any estimated impairment. Interest and dividends on these investments are recognized as earned or when dividends are declared. The Company reviews the above-mentioned stock for impairment based on the ultimate recoverability of their cost. As of December 31, 2023 and 2022, there was no allowance for credit losses related to other investments. A non-controlling partnership interest in the Massachusetts Housing Equity Fund XXII LLC (a Qualified Affordable Housing Project “QAHP” of the Massachusetts Housing Investment Corporation), is accounted for using the proportional amortization method, whereby the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance as a component of income tax expense. The Company’s interest in the Massachusetts Housing Equity Fund XXII LLC constitutes a variable interest entity, which is not consolidated into the Company as there is a separate managing member who controls and operates the entity. Investments in solar energy programs are accounted for under the proportional amortization method of accounting, rather than consolidation, due to the nature of the investee’s business (solar project where control remains with the managing LLC member) and the relative insignificance to the Company’s consolidated financial statements and constitute unconsolidated variable interest entities. Derivative Instruments and Hedging Activities – The Company follows ASC Topic 815, Derivatives and Hedging, with regard to disclosure requirements for derivatives and hedging activities, with the intent to provide users of financial statements with an enhanced understanding of: (a) how and why an entity uses derivative instruments, (b) how the entity accounts for derivative instruments and related hedged items, and (c) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows. Qualitative disclosures explain the Company’s objectives and strategies for using derivatives, and quantitative disclosures are made regarding the fair value of, and gains and losses on, derivative instruments, and about credit-risk-related contingent features in derivative instruments. As required by ASC 815, the Company reports all derivatives on its balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting, and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with 1) the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge, or 2) the earnings effect of the hedged forecasted transactions in a cash flow hedge. Other Real Estate Owned – Properties acquired through foreclosure proceedings or acceptance of a deed in lieu of foreclosure are classified as other real estate owned (“OREO”). Real estate formally acquired in settlement of loans are recorded at the lower of the carrying value of the loan or the fair value of the property actually received. Losses arising from the acquisition of such properties are charged against the allowance for credit losses. Operating expenses and any subsequent provisions to reduce the carrying value to fair value less costs to sell are charged to current period earnings. In periods of declining real estate values, this accounting treatment would result in additional charges to OREO expense. Gains and losses upon disposal are reflected in earnings as realized. 83 Table of Contents Transfers of Financial Assets – Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) 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 (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Revenue Recognition – The Company recognizes certain revenues in accordance with ASC Topic 606, “Revenue from Contracts with Customers”. The standard is based on the principles that revenues are recognized when control of a good or service transfers to a customer, and that an entity should recognize revenue to depict the transfer of promised goods or 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. Under Topic 606, depending on the terms of a contract with a customer, revenues are either recognized at a point in time when a performance obligation is satisfied, or over time, as satisfaction of a performance obligation progresses. The standard does not apply to customer contracts that are within the scope of other accounting standards such as financial instruments and their transfer and servicing. As such, the standard does not apply to the Company’s interest income on loans, investment income, sale of financial assets and related mortgage banking and servicing income. Revenues from contracts with customers that are subject to the principles of ASC Topic 606 are included in “non-interest income” under the customer service fees category in the Company’s consolidated statements of income. The following is a summary of such revenues from contracts with customers for the years ended December 31: ​ ​ ​ ​ ​ ​ ​ ​ (In thousands) 2023 2022 ATM and interchange income, net of related expenses ​ $ 1,224 ​ $ 1,071 Non-sufficient funds ("NSF") and overdraft fees ​ ​ 527 ​ ​ 438 Other customer service fees ​ ​ 6,066 ​ ​ 3,629 Total ​ $ 7,817 ​ $ 5,138 ​ ATM and interchange income are reported net of directly related expenses and are recognized by the Company when customers use their ATM/debit cards issued by the Company through a third-party payment network. NSF and overdraft protection fees represent fees charged to customers to cover or protect customer transactions in case of insufficient customer funds. Other customer service fees are primarily comprised of fees on cash management services, deposit account maintenance fees, wire transfer fees, certain loan prepayment fees and investment advisory fees. All of these fees are recognized at a point in time. Transaction based fees are recognized at the time of the transaction while account maintenance and protection fees are both charged and recognized on a monthly basis. In each of the revenue streams identified above, there were no significant judgments made in determining or allocating the transaction price, as the consideration and service requirements are generally explicitly identified in the associated contracts and consist of a single performance obligation. Loan Servicing – The Company records a servicing asset at estimated fair value, if practical, each time it undertakes an obligation to service a financial asset, principally when it sells financial assets and retains servicing rights. For sales of one to four-family residential real estate loans, a portion of the cost of originating the loan is allocated to the mortgage servicing rights based on estimated relative fair value. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively based on a valuation model that calculates the present value of estimated future net servicing income. For subsequently measuring and reporting servicing assets, the Company has chosen to use the amortization method, rather than the fair value measurement method. Under this method, the Company amortizes the servicing asset in proportion to, and over the period of, estimated net servicing income, and it assesses the asset for estimated impairment based on fair value at each reporting date. Mortgage servicing rights are included in “prepaid expenses and other assets” on the Company’s consolidated balance sheets. Loan servicing income received and the related amortization of the mortgage servicing rights are included in “mortgage banking income” in the Company’s consolidated statement of income (see Note 4). Banking Premises and Equipment – Land is carried at cost. Other premises and equipment are carried at cost net of accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the 84 Table of Contents assets (see Note 5). Maintenance and repairs are expensed as incurred while major improvements are capitalized. Gains and losses on dispositions are included in current operations. Impairment of Long-Lived Assets – The Company tests long-lived assets, including the core deposit intangible asset, for impairment whenever circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of carrying amount or fair value less estimated costs to sell. Defined Benefit Plans: Director Pension Plan – The Company maintains a director defined benefit pension plan which covers members of the board of directors who were in service prior to 2023, upon meeting specific qualifications. Pension expense under this plan is charged to current operations and consists of several components of net periodic pension cost based on various actuarial assumptions regarding future experience under the plans. The Company recognizes the over-funded or under-funded status of a defined benefit plan as an asset or liability in its balance sheet and it recognizes changes in the funded status of the plan in the year in which the changes occur. The funded status of a plan is measured as the difference between the fair value of plan assets and the “projected benefit obligation” (PBO) at the financial statement date. The unrecognized prior service costs, net actuarial gains and accounting transition obligation are reflected as “accumulated other comprehensive income” (OCI). The changes in the plan’s funded status are recognized as charges or credits to “OCI” to the extent that they are not required to be recognized as components of “net periodic pension cost” in net income (see Notes 9 and 15). Employee Pension Plans – The Company provides pension benefits for substantially all employees through membership in the Co-operative Banks Employees Retirement Association (CBERA). The Plan is accounted for as a multi-employer, noncontributory, defined benefit pension plan. Company employees become eligible after attaining age 21 and completing one year of service, and benefits become fully vested after six years of eligible service. Effective April 1, 2018, future eligibility for new Company employees to participate in the plan was frozen. Effective December 31, 2023, the Plan was frozen and participants no longer accrue additional retirement benefits (see Note 9). Employee Stock Ownership Plan ("ESOP") – ESOP shares are shown as a reduction of equity and are presented in the consolidated statements of changes in shareholders’ equity as unallocated common stock held by ESOP. Compensation expense for the Company’s ESOP is recorded at an amount equal to the shares committed to be allocated by the ESOP multiplied by the average fair market value of the shares during the period. The Company recognizes compensation expense ratably over the period based upon the Company’s estimate of the number of shares committed to be allocated by the ESOP. When the shares are released, unallocated common stock held by ESOP is reduced by the cost of the ESOP shares released and the difference between the average fair market value and the cost of the shares committed to be allocated by the ESOP is recorded as an adjustment to additional paid-in capital. The loan receivable from the ESOP is not reported as an asset nor is the Company’s guarantee to fund the ESOP reported as a liability on the Company’s consolidated balance sheet. The employees of the Bank are the participants in the ESOP. Dividends paid on unallocated shares are used to repay the loan to the Company. ​ Advertising Costs – The Company participates in certain advertising activities to attract more customers. The advertising costs of the Company are considered to benefit the period in which they are incurred. It is the Company’s policy to expense all advertising costs in the period incurred and to include them in the operating expense section of the consolidated income statement under the category marketing and charitable contribution expenses. The Company’s advertising expenses were approximately $ 2.7 million and $ 2.3 million for the years ended December 31, 2023 and 2022, respectively. Income Taxes – The Company and its subsidiaries file a consolidated federal income tax return. The Company recognizes certain revenue and expense items in periods which are different for financial accounting purposes than for federal income tax purposes. Deferred income tax assets and liabilities are computed under the liability method based on differences between the financial statement carrying amounts and the tax bases of assets and liabilities that will result in taxable or 85 Table of Contents deductible amounts in the future, based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. In accordance with generally accepted accounting principles, management assesses the likelihood that tax positions taken will be sustained upon examination based on their technical merit, considering the facts, circumstances and information available at the end of each period. The Company recognizes the effects of significant income tax positions taken on tax returns only if the positions are “more likely than not” to be sustained upon examination by the taxing authorities. Positions taken on tax returns that do not meet that threshold are not recognized in the Company’s provisions for income taxes. The measurement of uncertain tax positions is adjusted when new information is available, or when an event occurs that requires a change. The Company’s policy is to analyze its tax positions for all open tax years. Interest and penalties, if any, associated with uncertain tax positions, are classified as additional income tax expense in the consolidated statements of income (see Note 10). Subsequent events – Management has reviewed all events through the date the audited consolidated financial statements were filed with the SEC and concluded that no other events required any adjustment to the balances presented or disclosure. ​ Reclassifications – Certain prior period balances in the audited consolidated financial statements may have been reclassified to conform to the current year presentation. These reclassifications had no effect on prior year net income or shareholders’ equity. ​ Note 2 – Investment Securities Available for Sale – The amortized cost and estimated fair values of securities classified as available for sale (“AFS”) are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ ​ (In thousands) Cost Gain Loss Fair Value December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Debt Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury securities ​ $ 66,874 ​ $ 27 ​ $ ( 2,549 ) ​ $ 64,352 Agency mortgage-backed securities ​ ​ 13,154 ​ ​ 5 ​ ​ ( 1,729 ) ​ ​ 11,430 Agency collateralized mortgage obligations ​ ​ 2,987 ​ ​ — ​ ​ ( 569 ) ​ ​ 2,418 Corporate bonds ​ ​ 101,244 ​ ​ 5 ​ ​ ( 9,014 ) ​ ​ 92,235 Municipal obligations ​ ​ 20,010 ​ ​ — ​ ​ ( 980 ) ​ ​ 19,030 Total ​ $ 204,269 ​ $ 37 ​ $ ( 14,841 ) ​ $ 189,465 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ ​ (In thousands) Cost Gain Loss Fair Value December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Debt Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury securities ​ $ 111,953 ​ $ 43 ​ $ ( 5,195 ) ​ $ 106,801 Agency mortgage-backed securities ​ ​ 14,123 ​ ​ 3 ​ ​ ( 1,985 ) ​ ​ 12,141 Agency collateralized mortgage obligations ​ ​ 3,749 ​ ​ — ​ ​ ( 676 ) ​ ​ 3,073 Corporate bonds ​ ​ 110,886 ​ ​ — ​ ​ ( 9,079 ) ​ ​ 101,807 Municipal obligations ​ ​ 23,313 ​ ​ — ​ ​ ( 1,655 ) ​ ​ 21,658 Total ​ $ 264,024 ​ $ 46 ​ $ ( 18,590 ) ​ $ 245,480 ​ Investment securities with carrying values of $ 49.6 million as of December 31, 2023 were pledged to secure borrowings with the Federal Reserve Bank (see Note 8). There were no investment securities pledged to secure borrowings with the Federal Reserve Bank as of December 31, 2022. The Company did no t sell any AFS securities during the years ended December 31, 2023 and 2022. 86 Table of Contents The net unrealized gain (loss) on AFS securities is reported, net of deferred income tax effects, as a separate component of the Company’s shareholders’ equity, “Accumulated Other Comprehensive Income (Loss)”, and approximates the following as of the dates stated: ​ ​ ​ ​ ​ ​ ​ ​ (In thousands) December 31, 2023 December 31, 2022 Unrealized losses, net ​ $ ( 14,804 ) ​ $ ( 18,544 ) Deferred income tax asset ​ ​ 3,876 ​ ​ 4,805 ​ ​ $ ( 10,928 ) ​ $ ( 13,739 ) ​ Maturities of Debt Securities – The following is a summary of maturities of securities available for sale as of December 31, 2023. The amortized cost and fair values are based on the contractual maturity dates. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalty. Agency mortgage-backed securities and collateralized mortgage obligations are presented as separate lines as paydowns are expected to occur before contractual maturity dates. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Available for Sale ​ ​ Amortized Cost ​ Fair Value (In thousands) ​ Within one year $ 57,476 $ 56,824 Over one year to five years ​ 95,163 ​ 88,905 Over five years to ten years ​ 35,489 ​ 29,888 ​ ​ 188,128 ​ 175,617 Agency mortgage-backed securities ​ 13,154 ​ 11,430 Agency collateralized mortgage obligations ​ 2,987 ​ 2,418 ​ ​ $ 204,269 ​ $ 189,465 ​ Credit Loss Evaluation – The following tables present fair value and gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of the dates stated. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 Months ​ 12 Months or More ​ Total ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ (In thousands) ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair December 31, 2023 Number of Securities Losses Value Losses Value Losses Value U.S. Treasuries ​ 15 ​ $ ( 95 ) ​ $ 7,884 ​ $ ( 2,454 ) ​ $ 46,515 ​ $ ( 2,549 ) ​ $ 54,399 U.S. Government Agencies ​ 18 ​ ​ — ​ ​ — ​ ​ ( 1,730 ) ​ ​ 11,124 ​ ​ ( 1,730 ) ​ ​ 11,124 Taxable municipals ​ 5 ​ ​ — ​ ​ — ​ ​ ( 569 ) ​ ​ 2,418 ​ ​ ( 569 ) ​ ​ 2,418 Corporate bonds ​ 33 ​ ​ ( 1,135 ) ​ ​ 6,866 ​ ​ ( 7,879 ) ​ ​ 78,365 ​ ​ ( 9,014 ) ​ ​ 85,231 Mortgage backed securities ​ 13 ​ ​ ( 181 ) ​ ​ 1,819 ​ ​ ( 799 ) ​ ​ 17,211 ​ ​ ( 980 ) ​ ​ 19,030 Total ​ 84 ​ $ ( 1,411 ) ​ $ 16,569 ​ $ ( 13,431 ) ​ $ 155,633 ​ $ ( 14,842 ) ​ $ 172,202 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 Months ​ 12 Months or More ​ Total ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ (In thousands) ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair December 31, 2022 Number of Securities Losses Value Losses Value Losses Value U.S. Treasury securities ​ 20 ​ $ ( 47 ) ​ $ 19,958 ​ $ ( 5,148 ) ​ $ 83,759 ​ $ ( 5,195 ) ​ $ 103,717 Agency mortgage-backed securities ​ 25 ​ ​ ( 263 ) ​ ​ 2,900 ​ ​ ( 1,722 ) ​ ​ 8,932 ​ ​ ( 1,985 ) ​ ​ 11,832 Agency collateralized mortgage obligations ​ 6 ​ ​ ( 54 ) ​ ​ 1,048 ​ ​ ( 622 ) ​ ​ 2,025 ​ ​ ( 676 ) ​ ​ 3,073 Corporate bonds ​ 34 ​ ​ ( 4,332 ) ​ ​ 44,537 ​ ​ ( 4,747 ) ​ ​ 46,270 ​ ​ ( 9,079 ) ​ ​ 90,807 Municipal obligations ​ 14 ​ ​ ( 382 ) ​ ​ 10,841 ​ ​ ( 1,273 ) ​ ​ 10,817 ​ ​ ( 1,655 ) ​ ​ 21,658 Total ​ 99 ​ $ ( 5,078 ) ​ $ 79,284 ​ $ ( 13,512 ) ​ $ 151,803 ​ $ ( 18,590 ) ​ $ 231,087 ​ Municipal, Agency Debt, and U.S. Treasury Securities – The contractual cash flows of these securities are direct obligations of municipalities or the U.S. Treasury, or they consist of agency obligations, mortgage-backed securities or collateralized mortgage obligations which are guaranteed by Fannie Mae, Ginnie Mae, Freddie Mac, the Federal Home Loan Bank or other quasi-government agencies. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. 87 Table of Contents Corporate Bonds – The Company invests in a substantial amount of corporate bonds and subordinated debentures, which are scheduled to mature between the calendar years 2024 through 2032. These corporate bonds vary in commercial industries, including automotive, energy, consumer products, and media companies. The Company has also invested in domestic and foreign banking institutions. The subordinated debentures are mostly debt issuances from bank holding companies. As of December 31, 2023 and 2022, the majority of securities in an unrealized loss position were of investment grade; however, a few did not have a third-party investment grade available. These ungraded securities were primarily subordinated debt instruments issued by bank holding companies and are classified as corporate bonds in the tables above. As of December 31, 2023, 14 securities with a market value of $ 37.9 million, respectively, did not have a third-party investment grade available. Investment securities with unrealized losses are generally a result of pricing changes due to changes in the interest rate environment since purchase and not as a result of permanent credit loss. The Company does not intend to sell, nor does it believe it will be required to sell, any of its securities prior to the recovery of the amortized cost. Because the declines in fair value are attributable to market changes in interest rates and not due to credit quality, management did not recognize an allowance for credit loss against the Company’s investment portfolio as of December 31, 2023. Depositors Insurance Fund Stock – The Company holds stock in the Depositors Insurance Fund, as a requirement of membership. The cost of the shares is $ 139,000 , which represents the Company’s interest in the Depositors Insurance Fund, and is not redeemable. Federal Home Loan Bank Stock – The Company holds stock in the Federal Home Loan Bank of Boston, a regional member of the Federal Home Loan Bank (“FHLB”), as part of the Company’s membership requirements. Based upon the redemption provisions of the FHLB, the stock is restricted, has no quoted market value, and is carried at original cost. The balance in the investment account as of December 31, 2023 and 2022 was $ 14.6 million and $ 13.2 million, respectively. The stock serves as additional collateral on FHLB borrowings, which determines the amount of stock the Company is required to hold. Federal Reserve Bank Stock – The Company is required to maintain shares in the Federal Reserve Bank for 50 % of the total par value in order to meet criteria for membership in the Federal Reserve System. Although the full par value of the stock is $ 100 per share, the Company is required to pay only $ 50 per share at the time of purchase with the understanding that the other half of the subscription amount is subject to call at any time. Dividends are paid semi-annually at the statutory rate of 6 percent per annum, or $ 1.50 per share semi-annually. In addition, Federal Reserve regulations require that the Company purchase additional stock, or that the Federal Reserve System redeem stock, if a change in total deposit liabilities (as reported in the quarterly report of condition) results in a change in the Company’s Federal Reserve Stock holdings requirement by 15 percent or 100 shares, whichever is lower. As of December 31, 2023, the Company held 195,936 shares of stock in the approximate amount of $ 10.3 million compared to 162,072 shares of stock in the approximate amount of $ 8.1 million as of December 31, 2022. Non-Public Investments – Non-public investments consists of the following: Connecticut On-Line Computer Center, Inc. (“COCC”) – Common and preferred shares of COCC stock are recorded at cost. As of December 31, 2023 and 2022, the Company holds 47 shares of common stock in the amount of $ 195,000 and 43 shares of common stock in the amount of $ 175,000 , respectively. The Company also holds 5 shares of Series A preferred stock in the amount of $ 75,000 as of December 31, 2023 and 2022. Jassby Inc. – Jassby Inc. is a convenient and easy to use app for families with the vision to bring banking and financial services to families and provide App-based banking for generations Z and Alpha. In October 2019, the Company lent Jassby, Inc. $ 1,000,000 at 5 % in the form of a convertible promissory note, which had an original maturity date of December 31, 2021. Due to the occurrence of a private qualifying financing event in February 2020, the promissory note converted to approximately 320,000 shares of Series Seed-1 Preferred Stock in Jassby Inc. The carrying value of this preferred stock as of December 31, 2023 and 2022 was $ 1,000,000 . Reinventure Capital Fund I LP – During 2022, the Company invested $ 2,000,000 as a limited partner in the Reinventure Capital Fund to generate alternative investment earnings. In July of 2022, there was a capital 88 Table of Contents distribution of $ 1,000,000 leaving the Company with a remaining investment (carrying value) of $ 1,000,000 as of December 31, 2022. During 2023, there was an additional capital call of $ 500,000 that increased the Company’s investment (carrying value) to $ 1,500,000 as of December 31, 2023. LearnLaunch Fund III L.P. – During 2023, the Company invested $ 455,000 as a limited partner in the LearnLaunch Fund to generate alternative investment earnings. The total commitment to the fund is $ 650,000 , with $ 455,000 contributed as of December 31, 2023. Unconsolidated variable interest entities included in non-public investments consist of the following (See Note 22): Massachusetts Housing Investment Corporation ("MHIC") – The MHIC is a program where the Internal Revenue Service (“IRS”) allocates federal tax credits to state housing credit agencies based on each state’s population. The state agencies award Low Income Housing Tax Credits for Qualified Affordable Housing Projects (“QAHP”). Project sponsors use tax credits to raise equity from investors. The equity investment reduces the debt burden on the tax credit property, making it financially feasible to offer lower, more affordable rental rates to eligible individuals. The participating banks are entitled to certain federal tax credits. As of December 31, 2023 and 2022, the Company is carrying approximately $ 1,000,000 in the Massachusetts Housing Equity Fund XXII LLC, a QAHP sponsored by the MHIC. The Company holds a 1.15 % interest in this partnership as of December 31, 2023. The Company’s accumulated share of losses and tax credits as of December 31, 2023 and 2022 was $ 662,000 . Sunwealth Project Pool 20 LLC (“Sunwealth”) – Sunwealth is a solar energy program formed on April 21, 2021 by the Company as a 99 % non-controlling LLC investor member and Sunwealth Holdco 8 LLC (Holdco) as the sole managing LLC member. Sunwealth is in the business of developing, designing, installing, owning and maintaining solar photovoltaic energy generation facilities on the rooftops or properties of municipal and commercial customers in the United States. Sunwealth has or intends to purchase solar photovoltaic energy generation facilities from the developers prior to any PV System that is part of any such facilities being placed in service and sell electricity or lease such facilities to off-takers in a manner that will qualify the Company, through its ownership in Sunwealth, to receive income tax credits. Energy produced by the facilities will be sold to the applicable off-taker or the facilities will be leased to the applicable off-taker, in each case pursuant to the offtake agreements with the purchaser. The offtake agreements include leasehold or other rights of access to all areas of the facilities on which the facilities and their parts are located so that agents of the Sunwealth are able to inspect, access, maintain and improve facility equipment and all other rights and assets necessary for the ownership and operation thereof and the sale of power from the facilities. During 2021, through its subsidiary, 1892 Investments, the Company invested $ 2.5 million in Sunwealth for Project Pool 20. The carrying value of the investment is approximately $ 1.9 million as of December 31, 2023 compared to $ 2.3 million as of December 31, 2022. In addition, the Company has made a $ 2.5 million loan to Holdco to fund the project, which is included in the Company’s construction and industrial loan portfolio as of December 31, 2023 and 2022. Sunwealth Project Pool 26 LLC – Through its subsidiary, 1892 Investments, in 2022 the Company committed $ 5.0 million to Sunwealth for Project Pool 26, of which invested $ 4.2 million (tax basis) was funded towards solar projects during 2022. The carrying value of the investment is approximately $ 3.4 million as of December 31, 2023 compared to $ 5.0 million as of December 31, 2022, which includes a refundable advance of $ 800,000 . Patriot Renewable Energy Capital, LLC (“Patriot Renewables”) – Patriot Renewables is a developer, owner, and operator of commercial-scale wind and solar energy projects. The Company has invested in the below projects through its subsidiary, 1892 Investments. Bertoline Project – The Company invested $ 623,000 in the Bertoline Project in 2022 with a total commitment of $ 656,000 . During 2023, the Company invested an additional $ 26,000 . The carrying 89 Table of Contents value of the investment approximates $ 535,000 and $ 623,000 as of December 31, 2023 and 2022, respectively. Maple Crest Project – During 2023, the Company invested $ 1.0 million towards the Maple Crest Project. The total commitment to this solar project is $ 5.0 million, with $ 1.0 million contributed as of December 31, 2023. Note 3 – Loans Receivable and ACL All loan and ACL information presented as of and for the year ended December 31, 2023 is in accordance with ASC 326. All loan information presented prior to this period is presented in accordance with previous GAAP. As a result, the presentation of information pre-ASC 326 and post-ASC 326 adoption will not be comparable for most disclosures. Loans consist of the following as of the dates stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 One-to four-family residential $ 1,097,475 ​ $ 932,436 Home equity ​ 97,270 ​ ​ 75,226 Residential real estate ​ 1,194,745 ​ ​ 1,007,662 ​ ​ ​ ​ ​ ​ Commercial real estate ​ 1,174,020 ​ ​ 822,744 Multi-family residential ​ 209,982 ​ ​ 189,279 Commercial real estate ​ 1,384,002 ​ ​ 1,012,023 Construction and land development ​ 622,713 ​ ​ 552,375 Commercial and industrial ​ 487,878 ​ ​ 247,361 Commercial ​ 2,494,593 ​ ​ 1,811,759 ​ ​ ​ ​ ​ ​ Consumer, net of premium/discount ​ 204,871 ​ ​ 196,535 ​ ​ ​ ​ ​ ​ Total loans ​ 3,894,209 ​ ​ 3,015,956 Deferred fees, net ​ ( 4,930 ) ​ ​ ( 511 ) Allowance for credit losses ​ ( 32,222 ) ​ ​ ( 25,028 ) Net loans $ 3,857,057 ​ $ 2,990,417 ​ Included in the above as of December 31, 2023 is approximately $ 320.5 million in loans to borrowers in the cannabis industry, of which 80 % is collateralized by real estate compared to $ 58.3 million of cannabis industry loans, of which 91 % is collateralized by real estate at December 31, 2022. None of the loans to borrowers in the cannabis industry are collateralized by cannabis. During the years ended December 31, 2023 and 2022, the Company purchased approximately $ 34.2 million and $ 187.3 million, respectively, of consumer loan pools. These purchases included loan pools collateralized by boat and recreational vehicles, automobiles, and solar panels, as well as unsecured home improvement loans. The outstanding balances of these consumer loan pools, shown net of premium (discount) are as follows as of the dates stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 Gross Loan Premium (Discount) Net Loan Student loans $ 8,989 ​ $ 49 ​ $ 9,038 Boat and RV loans ​ 58,483 ​ ​ 1,422 ​ ​ 59,905 Automobile loans ​ 14,662 ​ ​ — ​ ​ 14,662 Solar panel loans ​ 61,430 ​ ​ ( 5,443 ) ​ ​ 55,987 Home improvement loans ​ 53,220 ​ ​ ( 26 ) ​ ​ 53,194 Total $ 196,784 ​ $ ( 3,998 ) ​ $ 192,786 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 Gross Loan Premium (Discount) Net Loan Student loans $ 11,679 ​ $ 61 ​ $ 11,740 Boat and RV loans ​ 40,270 ​ ​ 925 ​ ​ 41,195 Automobile loans ​ 15,498 ​ ​ — ​ ​ 15,498 Solar panel loans ​ 67,994 ​ ​ ( 5,914 ) ​ ​ 62,080 Home improvement loans ​ 63,146 ​ ​ ( 44 ) ​ ​ 63,102 Total $ 198,587 ​ $ ( 4,972 ) ​ $ 193,615 ​ For purposes of the schedules included in this note, the Company classifies multi-family residential loans as commercial real estate. 90 Table of Contents The following table presents the aging of the amortized cost of loans receivable by loan category as of the date stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 30-59 ​ 60-89 ​ 90 Days or ​ ​ ​ ​ ​ ​ ​ ​ Current ​ Days ​ Days ​ More Past Due ​ ​ ​ ​ Total December 31, 2023 Loans Past Due Past Due Still Accruing Nonaccrual Loans Real estate loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One-to four-family residential ​ $ 1,091,472 ​ $ 1,903 ​ $ — ​ $ — ​ $ 4,100 ​ $ 1,097,475 Home equity ​ 96,327 ​ 288 ​ 65 ​ — ​ 590 ​ 97,270 Commercial real estate ​ 1,380,845 ​ 2,735 ​ — ​ — ​ 422 ​ 1,384,002 Construction and land development ​ 622,703 ​ — ​ — ​ — ​ 10 ​ 622,713 Commercial and industrial ​ 483,737 ​ 2 ​ 1 ​ — ​ 4,138 ​ 487,878 Consumer ​ 198,316 ​ 4,009 ​ 1,008 ​ — ​ 1,538 ​ 204,871 Total ​ $ 3,873,400 ​ $ 8,937 ​ $ 1,074 ​ $ — ​ $ 10,798 ​ $ 3,894,209 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due 90 ​ ​ ​ ​ ​ ​ ​ ​ 30-59 ​ 60-89 ​ ​ ​ ​ ​ ​ ​ Days or ​ ​ ​ ​ ​ Current ​ Days ​ Days ​ 90 Days or ​ Total ​ More & Still ​ Loans on December 31, 2022 ​ Loans ​ Past Due ​ Past Due ​ More ​ Loans Accruing ​ Nonaccrual Real estate loans: ​ ​ ​ ​ ​ ​ ​ One-to four-family residential ​ $ 929,323 ​ $ 1,449 ​ $ — ​ $ 1,664 ​ $ 932,436 ​ $ — ​ $ 5,579 Home equity ​ 74,008 ​ 728 ​ 490 ​ — ​ 75,226 ​ — ​ 818 Commercial ​ 1,007,110 ​ 4,243 ​ — ​ 670 ​ 1,012,023 ​ — ​ 670 Construction & land development ​ 552,375 ​ — ​ — ​ — ​ 552,375 ​ — ​ 10 Commercial & industrial loans ​ 246,523 ​ 38 ​ — ​ 800 ​ 247,361 ​ — ​ 5,086 Consumer loans ​ 193,783 ​ 1,499 ​ 436 ​ 817 ​ 196,535 ​ — ​ 859 Total ​ $ 3,003,122 ​ $ 7,957 ​ $ 926 ​ $ 3,951 ​ $ 3,015,956 ​ $ — ​ $ 13,022 ​ The following table presents the amortized cost of nonaccrual loans receivable by loan category as of the date stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Incurred ​ ​ Nonaccrual ​ Nonaccrual ​ Total ​ Loss Model- ​ ​ Loans with ​ Loans with ​ Nonaccrual ​ Nonaccrual ​ No ACL an ACL Loans Loans Real estate loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One-to four-family residential ​ $ 4,100 ​ $ — ​ $ 4,100 ​ $ 5,579 Home equity ​ ​ 590 ​ ​ — ​ ​ 590 ​ ​ 818 Commercial real estate ​ ​ 422 ​ ​ — ​ ​ 422 ​ ​ 670 Construction and land development ​ ​ 10 ​ ​ — ​ ​ 10 ​ ​ 10 Commercial and industrial ​ ​ 376 ​ ​ 3,762 ​ ​ 4,138 ​ ​ 5,086 Consumer ​ ​ 1,538 ​ ​ — ​ ​ 1,538 ​ ​ 859 Total ​ $ 7,036 ​ $ 3,762 ​ $ 10,798 ​ $ 13,022 ​ During the year ended December 31, 2023, the Company reversed $ 37 thousand of interest income for loans that were placed on non-accrual. ​ Credit Quality Information The Company utilizes a nine-grade internal rating system for all loans, except consumer loans, which are not risk rated, as follows: Loans rated 1-5: Loans in these categories are considered “pass” rated loans with low to average risk. Loans rated 6: Loans in this category are considered “special mention”. These loans are starting to show signs of potential weakness and are being closely monitored by management. 91 Table of Contents Loans rated 7: Loans in this category are considered “substandard”. Generally, a loan is considered substandard if it is inadequately protected by the current net worth and paying capacity of the obligors and/or the collateral pledged. There is a distinct possibility that the Company will sustain some loss if the weakness is not corrected. Non-accrual residential real estate loans that are well secured (LTV< 75 %) are not considered to warrant a downgrade to a substandard risk rating. Loans rated 8: Loans in this category are considered “doubtful”. Loans classified as doubtful have all the weaknesses inherent in those classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, highly questionable and improbable. Loans rated 9: Loans in this category are considered uncollectible (“loss”) and of such little value that their continuance as loans is not warranted. On an annual basis, or more often if needed, the Company reviews the accuracy of risk ratings for all commercial real estate, construction and land development loans, and commercial and industrial loans based on various ongoing performance characteristics and supporting information that is provided from time to time by commercial borrowers. Annually, the Company engages an independent third-party to review a significant portion of loans within these segments. Management uses the results of these reviews as part of its annual review process. The following table presents the amortized cost of loans receivable by internal risk grade by year of origination as of December 31, 2023. Also presented are current period gross charge-offs by loan type and vintage year for the year ended December 31, 2023. 92 Table of Contents ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year (in thousands) ​ ​ Risk Rating ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Revolving Loans ​ Total Residential Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 152,824 ​ $ 272,448 ​ $ 256,666 ​ $ 128,181 ​ $ 78,739 ​ $ 174,654 ​ $ 130,256 ​ $ 1,193,768 Special Mention ​ 6 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Substandard ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 898 ​ ​ 79 ​ ​ 977 Doubtful ​ 8 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Loss ​ 9 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 152,824 ​ $ 272,448 ​ $ 256,666 ​ $ 128,181 ​ $ 78,739 ​ $ 175,552 ​ $ 130,335 ​ $ 1,194,745 Current period gross charge-offs ​ ​ ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 379 ​ $ — ​ $ 379 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 388,563 ​ $ 421,419 ​ $ 81,913 ​ $ 124,461 ​ $ 142,092 ​ $ 179,713 ​ $ 33,944 ​ $ 1,372,105 Special Mention ​ 6 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 6,183 ​ ​ 5,714 ​ ​ — ​ ​ 11,897 Substandard ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Doubtful ​ 8 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Loss ​ 9 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 388,563 ​ $ 421,419 ​ $ 81,913 ​ $ 124,461 ​ $ 148,275 ​ $ 185,427 ​ $ 33,944 ​ $ 1,384,002 Current period gross charge-offs ​ ​ ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction and Land Development ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 157,270 ​ $ 305,558 ​ $ 127,720 ​ $ 20,929 ​ $ 10,333 ​ $ — ​ $ 893 ​ $ 622,703 Special Mention ​ 6 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Substandard ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Doubtful ​ 8 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 10 ​ ​ — ​ ​ 10 Loss ​ 9 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 157,270 ​ $ 305,558 ​ $ 127,720 ​ $ 20,929 ​ $ 10,333 ​ $ 10 ​ $ 893 ​ $ 622,713 Current period gross charge-offs ​ ​ ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial and Industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 58,676 ​ $ 88,286 ​ $ 45,960 ​ $ 8,080 ​ $ 3,038 ​ $ 16,178 ​ $ 258,468 ​ $ 478,686 Special Mention ​ 6 ​ ​ — ​ ​ — ​ ​ 250 ​ ​ — ​ ​ — ​ ​ 475 ​ ​ — ​ ​ 725 Substandard ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 119 ​ ​ 3,762 ​ ​ 4,586 ​ ​ 8,467 Doubtful ​ 8 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Loss ​ 9 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 58,676 ​ $ 88,286 ​ $ 46,210 ​ $ 8,080 ​ $ 3,157 ​ $ 20,415 ​ $ 263,054 ​ $ 487,878 Current period gross charge-offs ​ ​ ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 570 ​ $ 109 ​ $ — ​ $ 679 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 36,453 ​ $ 83,720 ​ $ 53,404 ​ $ 9,826 ​ $ 10,896 ​ $ 8,700 ​ $ 1,872 ​ $ 204,871 Non-Pass ​ 6-9 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 36,453 ​ $ 83,720 ​ $ 53,404 ​ $ 9,826 ​ $ 10,896 ​ $ 8,700 ​ $ 1,872 ​ $ 204,871 Current period gross charge-offs ​ ​ ​ $ 42 ​ $ 1,524 ​ $ 1,163 ​ $ 311 ​ $ 219 ​ $ 221 ​ $ 7 ​ $ 3,487 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 793,786 ​ $ 1,171,431 ​ $ 565,663 ​ $ 291,477 ​ $ 245,098 ​ $ 379,245 ​ $ 425,433 ​ $ 3,872,133 Special Mention ​ 6 ​ ​ — ​ ​ — ​ ​ 250 ​ ​ — ​ ​ 6,183 ​ ​ 6,189 ​ ​ — ​ ​ 12,622 Substandard ​ 7 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 119 ​ ​ 4,660 ​ ​ 4,665 ​ ​ 9,444 Doubtful ​ 8 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 10 ​ ​ — ​ ​ 10 Loss ​ 9 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 793,786 ​ $ 1,171,431 ​ $ 565,913 ​ $ 291,477 ​ $ 251,400 ​ $ 390,104 ​ $ 430,098 ​ $ 3,894,209 Current period gross charge-offs ​ ​ ​ $ 42 ​ $ 1,524 ​ $ 1,163 ​ $ 311 ​ $ 789 ​ $ 709 ​ $ 7 ​ $ 4,545 ​ 93 Table of Contents The following tables present an analysis of the change in the ACL by major loan segment for the period stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year ended December 31, 2023 ​ ​ One-to-Four ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Family ​ ​ ​ ​ Commercial ​ and Land ​ Commercial and ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential Home Equity Real Estate Development Industrial Consumer Unallocated Total Balance at December 31, 2022 ​ $ 3,485 ​ $ 258 ​ $ 6,538 ​ $ 3,846 ​ $ 8,255 ​ $ 1,403 ​ $ 1,243 ​ $ 25,028 Adjustment to allowance for adoption of ASU 2016-13 ​ ​ 266 ​ ​ 13 ​ ​ 822 ​ ​ ( 246 ) ​ ​ 932 ​ ​ 615 ​ ​ ( 1,243 ) ​ ​ 1,159 Provision for credit losses - ACL ​ ( 1,537 ) ​ ​ ( 154 ) ​ ​ ( 1,332 ) ​ ​ 4,030 ​ ​ 2,370 ​ ​ 6,280 ​ — ​ 9,657 Charge offs ​ ( 379 ) ​ — ​ — ​ — ​ ( 679 ) ​ ( 3,487 ) ​ — ​ ( 4,545 ) Recoveries of loans previously charged off ​ — ​ — ​ 48 ​ — ​ — ​ 875 ​ — ​ 923 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at December 31, 2023 ​ $ 1,835 ​ $ 117 ​ $ 6,076 ​ $ 7,630 ​ $ 10,878 ​ $ 5,686 ​ $ — ​ $ 32,222 ​ Subsequent to the CECL adoption, management refined the modeling assuming and enhanced the CECL calculation, including the reserve for unfunded commitments, specifically regarding the qualitative analysis used in the determination of expected credit losses. The impact of these changes resulted in provisions for credit losses of $ 333 thousand. The following table presents the amortized cost of collateral-dependent loans of December 31, 2023 (in thousands): ​ ​ ​ ​ ​ One-to four-family residential ​ $ 977 Construction and land development ​ 10 Commercial and industrial loans ​ 8,443 Total ​ $ 9,430 ​ The Company closely monitors the performance of borrowers experiencing financial difficulty to understand the effectiveness of its loan modification efforts. The Company did not modify any loans to borrowers experiencing financial difficulty during the year ended December 31, 2023. Allowance for Credit Losses – Unfunded Commitments The Company maintains an allowance for off-balance sheet credit exposures such as unfunded balances for existing lines of credit, commitments to extend future credit, as well as both standby and commercial letters of credit when there is a contractual obligation to extend credit and when this extension of credit is not unconditionally cancellable (i.e., commitment cannot be canceled at any time). The allowance for off-balance sheet credit exposures is adjusted as a provision for (reversal of) credit loss expense. The estimate includes consideration of the likelihood that funding will occur, which is based on a historical funding study derived from internal information, and an estimate of expected credit losses on commitments expected to be funded over its estimated life, which are the same loss rates that are used in computing the allowance for credit losses on loans. The allowance for credit losses for unfunded loan commitments of $ 6.0 million as of December 31, 2023 is classified separately on the consolidated balance sheet with accrued expenses and other liabilities. There no allowance was for credit losses for unfunded commitments as of December 31, 2022. 94 Table of Contents The following table presents the balance and activity in the allowance for credit losses for unfunded loan commitments for the year ended December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, 2023 Beginning balance $ — Adjustment to allowance for unfunded commitments for adoption of ASC 326 ​ 1,786 Provision for unfunded commitments ​ 4,228 Balance, December 31, 2023 ​ $ 6,014 ​ Subsequent to the CECL adoption, management refined the modeling assuming and enhanced the CECL calculation, including the reserve for unfunded commitments, specifically regarding the probability of funding assumptions related to unfunded commitments and enhanced the qualitative analysis used in the determination of expected credit losses. The impact of these changes resulted in provisions for credit losses for unfunded commitments of $ 4.2 million. Pre-ASC 326 Adoption Disclosures Prior to the adoption of ASC 326 on January 1, 2023, the Company calculated the allowance for loan losses under the incurred loss methodology. The following disclosures are presented under this previously applicable GAAP for the applicable prior periods. Due to the adoption of CECL under ASC 326, two significant concepts under the incurred loss methodology disclosed below, impaired loans and troubled debt restructurings (TDRs) have been eliminated and replaced by collateral-dependent loans and modifications made to borrowers experiencing financial difficulties which were discussed in Note 1 and disclosed previously. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. Under the incurred loss methodology, when a loan is modified and a concession is made to a borrower experiencing financial difficulty, the modification was considered a TDR. All TDRs were initially classified by the Company as impaired. The following table presents a summary of the loan portfolio individually and collectively evaluated for impairment as of the date stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One-to Four- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Family ​ ​ ​ Commercial ​ Construction & ​ Commercial & ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential Home Equity Real Estate Land Development Industrial Consumer Unallocated Total December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ Allowance for loans individually evaluated for impairment ​ $ 422 ​ $ — ​ $ — ​ $ — ​ $ 4,998 ​ $ — ​ $ — ​ $ 5,420 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for loans collectively evaluated for impairment ​ 3,063 ​ 258 ​ 6,538 ​ 3,846 ​ 3,257 ​ 1,403 ​ 1,243 ​ 19,608 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Allowance for Loan Loss ​ $ 3,485 ​ $ 258 ​ $ 6,538 ​ $ 3,846 ​ $ 8,255 ​ $ 1,403 ​ $ 1,243 ​ $ 25,028 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans individually evaluated for impairment ​ $ 1,809 ​ $ 80 ​ $ 3,360 ​ $ 10 ​ $ 9,121 ​ $ — ​ $ — ​ $ 14,380 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans collectively evaluated for impairment ​ 930,627 ​ 75,146 ​ 1,008,663 ​ 552,365 ​ 238,240 ​ 196,535 ​ — ​ 3,001,576 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Loans ​ $ 932,436 ​ $ 75,226 ​ $ 1,012,023 ​ $ 552,375 ​ $ 247,361 ​ $ 196,535 ​ $ — ​ $ 3,015,956 ​ 95 Table of Contents The following tables presents a summary of impaired loans as of the date stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Recorded ​ ​ Unpaid ​ ​ Related ​ ​ ​ ​ ​ ​ Investment in ​ ​ Principal ​ ​ Allowance for ​ ​ Net Impaired ​ Impaired Loans Balance Loan Losses Loan Balance (In thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans with no related allowance recorded: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One-to four-family residential ​ $ 1,387 ​ $ 1,912 ​ $ — ​ $ 1,387 Home equity ​ ​ 80 ​ ​ 80 ​ ​ — ​ ​ 80 Commercial real estate ​ ​ 3,360 ​ ​ 9,178 ​ ​ — ​ ​ 3,360 Construction & land development ​ ​ 10 ​ ​ 640 ​ ​ — ​ ​ 10 Commercial & industrial ​ ​ 874 ​ ​ 2,669 ​ ​ — ​ ​ 874 Consumer ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ 5,711 ​ ​ 14,479 ​ ​ — ​ ​ 5,711 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans with an allowance recorded: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One-to four-family residential ​ ​ 422 ​ ​ 422 ​ ​ 422 ​ ​ — Home equity ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate ​ ​ — ​ ​ — ​ ​ — ​ ​ — Construction & land development ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial & industrial ​ ​ 8,247 ​ ​ 8,247 ​ ​ 4,998 ​ ​ 3,249 Consumer ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ 8,669 ​ ​ 8,669 ​ ​ 5,420 ​ ​ 3,249 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total impaired loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One-to four-family residential ​ ​ 1,809 ​ ​ 2,334 ​ ​ 422 ​ ​ 1,387 Home equity ​ ​ 80 ​ ​ 80 ​ ​ — ​ ​ 80 Commercial real estate ​ ​ 3,360 ​ ​ 9,178 ​ ​ — ​ ​ 3,360 Construction & land development ​ ​ 10 ​ ​ 640 ​ ​ — ​ ​ 10 Commercial & industrial ​ ​ 9,121 ​ ​ 10,916 ​ ​ 4,998 ​ ​ 4,123 Consumer ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total impaired loans ​ $ 14,380 ​ $ 23,148 ​ $ 5,420 ​ $ 8,960 ​ Additional information about impaired loans is as follows for the period stated (in thousands): ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, 2022 Average recorded investment in impaired loans: ​ ​ ​ Real Estate: ​ ​ ​ One-to-four family residential ​ ​ 1,633 Home equity ​ ​ 16 Commercial real estate ​ ​ 3,413 Construction and land development ​ ​ 10 Commercial and industrial ​ ​ 8,802 Total ​ $ 13,874 ​ ​ ​ ​ Related amount of interest income recognized during the period that the loans were impaired: ​ ​ ​ Total recognized ​ $ 683 Amount recognized using a cash-basis method of accounting ​ $ 367 ​ 96 Table of Contents The following table summarizes the carrying balance of troubled debt restructurings (“TDRs”) as of December 31, 2022 (in thousands): ​ ​ ​ ​ Performing TDRs $ 8,304 Nonperforming TDRs ​ 3,762 Total TDRs ​ $ 12,066 ​ There were no loans modified as TDRs and no TDRs that defaulted in the first twelve months after restructuring during the year ended December 31, 2022. The following tables present an analysis of the change in the allowance for loan losses by loan type for the period stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2022 ​ ​ One-to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Four- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Family ​ Home ​ Commercial ​ Construction and ​ Commercial and ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential Equity Real Estate Land Development Industrial Consumer Unallocated Total Balance, December 31, 2021 ​ $ 3,016 ​ $ 175 ​ $ 4,449 ​ $ 3,467 ​ $ 5,749 ​ $ 109 ​ $ 1,450 ​ $ 18,415 Provision for loan losses ​ ​ 471 ​ ​ 83 ​ ​ 2,041 ​ ​ 379 ​ ​ 2,506 ​ ​ 1,427 ​ ​ ( 207 ) ​ ​ 6,700 Charge offs ​ ​ ( 35 ) ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ( 287 ) ​ ​ — ​ ​ ( 322 ) Recoveries of loans previously charged off ​ ​ 33 ​ ​ — ​ ​ 48 ​ ​ — ​ ​ — ​ ​ 154 ​ ​ — ​ ​ 235 Balance, December 31, 2022 ​ $ 3,485 ​ $ 258 ​ $ 6,538 ​ $ 3,846 ​ $ 8,255 ​ $ 1,403 ​ $ 1,243 ​ $ 25,028 ​ The following table summarizes the Company’s loans by risk rating category as of the date stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Residential ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Risk ​ Real ​ Commercial ​ Construction & ​ Commercial & ​ ​ ​ ​ Total ​ ​ Rating ​ Estate ​ Real Estate ​ Land Development ​ Industrial ​ Consumer ​ Loans December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grade: ​ ​ ​ ​ ​ ​ ​ Pass ​ 1-5 ​ $ 1,006,275 ​ $ 998,788 ​ $ 552,365 ​ $ 232,742 ​ $ 196,535 ​ $ 2,986,705 Special Mention ​ 6 ​ — ​ 13,235 ​ — ​ 5,474 ​ — ​ 18,709 Substandard ​ 7 ​ 1,387 ​ — ​ — ​ 9,145 ​ — ​ 10,532 Doubtful ​ 8 ​ — ​ — ​ 10 ​ — ​ — ​ 10 Loss ​ 9 ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ ​ ​ $ 1,007,662 ​ $ 1,012,023 ​ $ 552,375 ​ $ 247,361 ​ $ 196,535 ​ $ 3,015,956 ​ ​ ​ ​ ​ Note 4 – Mortgage Banking – Loan Sales and Servicing ​ Mortgage loans sold to and serviced for investors are not included in the accompanying financial statements. The loans serviced for others were sold without recourse provisions. The aggregate outstanding unpaid principal balance of such loans approximates $ 215.7 million and $ 231.4 million at December 31, 2023 and 2022, respectively. Gains on loans sold, including recognition of mortgage servicing rights, for the years ended December 31, 2023 and 2022 were approximately $ 29,000 and $ 60,000 , respectively, and are included in "mortgage banking income" in the noninterest income section in the consolidated statements of income. The fair value of the rights to service mortgage loans sold is estimated by management using independent market information. This fair value is capitalized and amortized into income in proportion to, and over the period of, estimated net servicing income using the interest amortization method. The following is a schedule of mortgage servicing assets, including the final carrying value, as of and for the years ended December 31 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2023 2022 Balance at the beginning of the year ​ $ 2,298 ​ $ 2,735 Servicing obligations that result from transfers of financial assets ​ 25 ​ 14 Amortization ​ ( 273 ) ​ ( 451 ) Balance at the end of the year ​ $ 2,050 ​ $ 2,298 97 Table of Contents ​ Management has concluded that the fair value of mortgage servicing rights, which is based on market prices for comparable mortgage servicing contracts, exceeds the carrying value. Accordingly, there is no adjustment for impairment. ​ ​ Note 5 – Premises and Equipment The following table summarizes the Company’s premises and equipment as of December 31: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in thousands) Expected Useful Lives ​ December 31, 2023 December 31, 2022 Land ​ ​ ​ $ 4,631 ​ $ 4,631 Land improvements ​ 7 - 20 years ​ ​ 2,727 ​ ​ 2,727 Leasehold improvements ​ Lease term (including all anticipated extensions) ​ ​ 13,017 ​ ​ 12,308 Buildings and improvements ​ 20 - 50 ​ ​ 22,478 ​ ​ 21,171 Furniture, fixtures, and equipment ​ 3 - 10 ​ ​ 19,211 ​ ​ 18,377 ​ ​ ​ ​ ​ 62,064 ​ ​ 59,214 Less accumulated depreciation ​ ​ ​ ​ ( 26,533 ) ​ ​ ( 23,870 ) Total ​ ​ ​ $ 35,531 ​ $ 35,344 ​ The Company had depreciation expense for the years ended December 31, 2023 and 2022 in the amount of $ 2.7 million and $ 2.4 million, respectively. Note 6 – Lease Commitments The Company is the lessee under seven building and land lease agreements for branch locations in Dedham, Dover, Ashland, Millis, Medford, Natick and Mission Hill. The Company’s operating leases have remaining lease terms of 12 to 25 years, some of which include options to extend the leases for up to 10 years. In addition to the rental amounts, the Company is responsible for its share of utilities. The Company follows ASC 842, “Leases”, whereby all of its existing branch lease agreements have been recognized in the consolidated balance sheet in prepaid expenses and other assets as “right of use assets”, with offsetting “operating lease liabilities” in accrued expenses and other liabilities. The following is a summary of the recorded lease right-of-use assets for all of the above-mentioned lease agreements as of the dates stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Operating lease right-of-use assets ​ $ 11,540 ​ $ 11,540 Less accumulated amortization ​ ​ ( 992 ) ​ ​ ( 563 ) Operating lease right-of-use assets, net ​ ​ 10,548 ​ ​ 10,977 Operating lease liabilities ​ $ 10,773 ​ $ 11,049 Weighted average remaining term (years) ​ ​ 19 ​ ​ 20 Weighted average discount rate ​ ​ 4.38 % ​ ​ 4.38 % ​ The future minimum lease payments under the terms of the above leases at December 31, 2023, along with the recorded present value of the lease obligations, are as follows: ​ ​ ​ ​ ​ (in thousands) ​ ​ 2024 ​ $ 765 2025 ​ 787 2026 ​ 808 2027 ​ 825 2028 and thereafter ​ 835 Thereafter ​ 12,846 ​ ​ $ 16,866 Less unamortized discount ​ ( 6,093 ) Recorded present value of lease obligations ​ $ 10,773 ​ The Company has included in its recorded lease obligations and right-of-use assets any of the available lease extension options permitted under the agreements for branch locations as management can be reasonably certain under lease accounting criteria that the options will be exercised. Required payments for real estate taxes, insurance, utilities and management fees are not included in the recorded lease obligations and assets since they are variable payments that do not 98 Table of Contents depend on a specified index or rate and they are recorded to expense as they are incurred. Any increases in lease payments as a result of changes in the CPI are charged to lease expense. Common area maintenance charges under the agreements are not considered in the lease payments since they represent a service provided to the Company and, as such, they are recorded to expense as incurred. The discount rates imputed on the lease obligations range from 3.01 % to 5.29 %, which represented the Company’s incremental borrowing rates for similar length terms as the applicable leases. Total lease expense for the year ended December 31, 2023 and 2022 approximated $ 938,000 and $ 630,000 , respectively. Note 7 – Deposits A comparative summary of deposits is as follows as of the dates stated: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 ​ ​ (In thousands) Transactional accounts: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ $ 528,409 ​ $ 445,518 Savings accounts ​ ​ 127,640 ​ ​ 163,257 NOW accounts ​ ​ 345,753 ​ ​ 408,894 Money market accounts ​ ​ 888,511 ​ ​ 659,455 Total transactional accounts ​ ​ 1,890,313 ​ ​ 1,677,124 ​ ​ ​ ​ ​ ​ ​ Time deposits ​ ​ ​ ​ ​ ​ Greater than $250,000 ​ ​ 544,246 ​ ​ 415,860 Less than or equal to $250,000 ​ ​ 952,789 ​ ​ 793,759 Total time deposits ​ ​ 1,497,035 ​ ​ 1,209,619 Total deposits ​ $ 3,387,348 ​ $ 2,886,743 ​ Contractual maturities of time deposits are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Within 1 year ​ $ 1,472,067 ​ $ 1,022,891 Over 1 year to 2 years ​ ​ 13,360 ​ ​ 160,545 Over 2 years to 3 years ​ ​ 3,434 ​ ​ 11,137 Over 3 years to 4 years ​ ​ 6,159 ​ ​ 5,937 Over 4 years to 5 years ​ ​ 2,015 ​ ​ 9,109 ​ ​ $ 1,497,035 ​ $ 1,209,619 ​ Included in time deposits less than or equal to $250,000 are brokered certificates of deposit of approximately $ 183.6 million and $ 250.0 million as of December 31, 2023 and 2022, respectively. As of December 31, 2023 and 2022, total deposits related to the cannabis industry are $ 316.0 million and $ 234.9 million, or 9.3 % and 8.1 %, of total deposits, respectively. There are no customers that exceed 5 % of total deposits as of December 31, 2023 and 2022 . Note 8 – Borrowings Federal Home Loan Bank – Borrowings from the FHLB are secured by a blanket lien on qualified collateral, defined principally by pledging a specified percentage of the carrying value of owner and non-owner occupied first mortgage loans secured by one to four-family properties and commercial real estate loans, including multifamily loans. The amount of loans pledged was $ 1.33 billion as of December 31, 2023. Total additional borrowing capacity with the FHLB based upon collateral pledged, approximates $ 608.6 million at December 31, 2023. Additionally, in order to further secure these borrowings with the FHLB, the Company is also required to invest in the stock of the FHLB. ​ 99 Table of Contents Maturities on outstanding borrowings from the FHLB are summarized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Average ​ ​ ​ ​ Average (Dollars in thousands) ​ ​ Amount ​ Rate ​ Amount ​ Rate Advances maturing within: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One year ​ $ 282,503 ​ 5.53 % ​ $ 293,075 ​ 4.27 % One to two years ​ ​ — ​ — ​ ​ 7 ​ 2.80 % Four to five years ​ ​ 560 ​ 0.00 % ​ ​ — ​ — Five to ten years ​ ​ 275 ​ 0.00 % ​ ​ — ​ — Total ​ $ 283,063 ​ 5.53 % ​ $ 293,082 ​ 4.27 % ​ The Company also had a line of credit from the FHLB Ideal Way in the amount of $ 6.1 million at December 31, 2023 and 2022. The Company has no borrowings outstanding under this line of credit at December 31, 2023 or 2022. Interest expense on the above FHLB borrowings approximated $ 14.1 million and $ 2.9 million for the years ended December 31, 2023 and 2022, respectively. The Federal Reserve Bank – The Company has a line of credit agreement with the Federal Reserve Bank of Boston for usage of the discount window. The terms of the agreement call for the pledging of certain assets for any and all obligations of the Company under the agreement (see Note 2). As of December 31, 2023 and 2022, there were no borrowings outstanding under this agreement. Interest Rate Swap Contracts – The Company was party to an International Swap and Derivative Association (“ISDA”) interest rate swap contract of $ 50.0 million with a financial institution (“counterparty”) to manage its exposure to interest rate changes previously associated with $ 50.0 million of FHLB borrowings. The swap was modified during 2021 to manage its exposure to interest rates by replacing the FHLB borrowings with $ 50.0 million of brokered certificates of deposit (representing the notional amount of the swap contract). The swap contract qualified as a cash flow hedge and, accordingly, the Company recorded the fair value of the contract on its consolidated balance sheet as an asset or liability, with an offset to accumulated other comprehensive income (AOCI), net of income tax impacts, and with changes reflected in other comprehensive income. The swap contract matured during April of 2023. The effect of the swap contract was to limit the interest rate exposure on the brokered certificates of deposits to a fixed rate ( 2.53 %) versus the three-month LIBOR. In accordance with the swap agreement, the interest charge was calculated based upon the LIBOR and the fixed rate. If interest as calculated was greater based on the LIBOR, the counterparty paid the difference to the Company. However, if interest as calculated was greater based on the fixed rates, the Company paid the difference to the counterparty. Depending on the fluctuations in the LIBOR, the Company’s interest rate exposure and its related impact on interest expense and net cash flow could increase or decrease. The fair value of the interest rate swap agreement was the estimated amount the Company would receive or pay to terminate the agreement at a particular point in time, considering current interest rates and the creditworthiness of the counterparty. The estimated fair value of the interest rate swap contract was provided by a third-party valuation expert. As of December 31, 2022, the fair value of the swap contract was estimated to be an asset of approximately $ 321,000 , which was reflected as prepaid expenses and other assets, on the Company’s accompanying consolidated balance sheet. An unrealized gain on the swap contract of approximately $ 231,000 at December 31, 2022, net of income tax effects, was recorded in AOCI on the consolidated balance sheets at December 31, 2022. This financial instrument involved counterparty credit exposure. The counterparty for the interest rate exchange was a major financial institution that met the Company’s criteria for financial stability and creditworthiness. In order to mitigate counterparty default risk, should there be a significant difference in the market value of the swap components and/or the projected net interest payments, the Company or the counterparty could demand that collateral be pledged to cover the 100 Table of Contents difference on each swap contract. The Company was required to maintain $ 500,000 of collateral deposits with the counterparty at December 31, 2022. The swap agreement resulted in a credit to the Company’s interest expense of approximately $ 321,000 for the year ended December 31, 2023 (this swap contract matured during April 2023) and a charge to the Company’s interest expense of approximately $ 496,000 for the year ended December 31, 2022 (included with interest expense on deposits). Note 9 – Employee Benefits 401(k) Plan – The Company has an employee tax deferred incentive plan (the “401(k) plan”) under which the Company makes voluntary contributions within certain limitations. All employees who meet specified age and length of service requirements are eligible to participate in the 401(k) plan. The amount contributed by the Company is included in salaries and employee benefits expense. The amounts contributed to the 401(k) plan for the years ended December 31, 2023 and 2022 were $ 2.0 million and $ 1.9 million, respectively. Employee Pension Plan – The Company provides pension benefits through a defined benefit plan maintained with CBERA. The Company’s Plan assets and liabilities are pooled together with those of other financial institutions; therefore, the Company is not required to recognize the funded status of the plan on its balance sheet and need only accrue for any quarterly contributions due and payable on demand, or any withdrawal liabilities assessed by CBERA if the Company intended to withdraw from the Plan. Future benefit under the employee pension plan were frozen as of December 31, 2023 and the Company plans on withdrawing from the defined benefit plan maintained with CBERA. The Company’s participation in the CBERA Plan C defined benefit plan for year ended December 31 is summarized below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pension Protect Act Zone ​ ​ ​ Bank’s Contributions for ​ ​ ​ ​ ​ ​ Status ​ ​ ​ Year Ended December 31, ​ ​ ​ ​ ​ ​ FIP/RP ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Status ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, Pending / ​ ​ ​ ​ ​ ​ ​ Surcharge Pension Fund ​ EIN/Plan Number ​ 2023 ​ 2022 Implemented ​ 2023 ​ 2022 ​ Imposed The Defined Benefit Plan (Plan C) of the CBERA Retirement Program EIN: 04-6035593; Plan No. 334 Green Green No ​ $ 3,476,667 ​ $ 2,000,000 No ​ The Company’s contributions to the Plan in each of the two periods disclosed above exceeded 5 % of the total plan contributions. The Plan’s audited financial statements for the year ended December 31, 2022, indicated total net assets available for benefits of $ 403.6 million and total contributions from all participating employers of $ 8.6 million. Deferred Compensation Plans – During 2014, the Company put into place an unfunded, defined contribution, Non-qualified Deferred Compensation Plan (“Deferred Comp Plan”) for select employees of the Company. The Deferred Comp Plan was provided to key management of the Company and results in 5 % - 20 % of the employee’s then current base salary being credited to the participant’s account annually, subject to increases based upon increases in annual base compensation and the possibility of additional discretionary contributions. The employees vest at varying dates in accordance with each individual’s deferred compensation participation agreement; however, all key officers will be fully vested upon the attainment of age 65. The obligations under these plans are included in accrued retirement liabilities in the Company’s consolidated balance sheets and approximated $ 2.4 million and $ 2.1 million as of December 31, 2023 and 2022, respectively. The expense under these plans (recorded in salaries and employee benefits in the consolidated statements of income) approximated $ 355,000 and $ 336,000 for the years ended December 31, 2023 and 2022, respectively. Long-Term Incentive Plan – In January 2020, the Company put into place a long-term incentive plan for certain members of its management team where benefits are awarded annually on a discretionary basis and cliff vest after three years . Under 101 Table of Contents this plan, individuals are granted “phantom shares” and benefits are accrued based upon the projected growth of the Bank’s capital. The obligations under this plan are included in accrued retirement liabilities on the Company’s consolidated balance sheets and approximated $ 11.1 million and $ 4.9 million as of December 31, 2023 and 2022, respectively. The expense under this plan (recorded in salaries and employee benefits in the consolidated statements of income) approximated $ 7.8 million and $ 3.3 million for the years ended December 31, 2023 and 2022, respectively. The increase during 2023 was a result of a discretionary increase by the Compensation Committee. Director Pension Plan – The Company has a director defined benefit pension plan, covering directors who were in service prior to 2023 and have met the plan’s vesting requirements. The Company’s liabilities for the director pension plan are calculated by an independent actuary who used the “projected unit credit” actuarial method to determine the normal cost and actuarial liability. A comparison of the actuarial estimates of the benefit obligations to the recorded obligations are as follows as of the measurement date, December 31 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Projected benefit obligations ​ $ ( 5,744 ) ​ $ ( 4,998 ) Plan assets at fair value ​ ​ - ​ ​ - Funded status ​ $ ( 5,744 ) ​ $ ( 4,998 ) ​ Amounts recognized on the consolidated balance sheet as of December 31 are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Accrued retirement liabilities ​ $ ( 5,744 ) ​ $ 4,998 Accumulated other comprehensive loss in equity, before taxes ​ ​ ( 1,347 ) ​ ​ ( 1,241 ) Net amount recognized ​ $ ( 7,091 ) ​ $ 3,757 ​ Amounts included in “Accumulated Other Comprehensive Income (Loss)” that have not yet been recognized as components of net periodic pension cost as of December 31 are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Unrecognized prior service cost ​ $ ( 258 ) ​ $ ( 315 ) Unrecognized net loss ​ ​ ( 1,089 ) ​ ​ ( 926 ) Unrecognized losses included in AOCI ​ $ ( 1,347 ) ​ $ ( 1,241 ) ​ The weighted average actuarial assumptions used to determine the director pension plan projected benefit obligations and net periodic pension cost are as follows as of December 31 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Pre-retirement discount rate for net periodic pension cost ​ ​ 5.03 % ​ ​ 2.35 % Pre-retirement discount rate for projected benefit obligation ​ ​ 4.81 % ​ ​ 5.03 % Post-retirement discount rate for projected benefit obligation ​ ​ 4.81 % ​ ​ 5.03 % Rate of compensation increase ​ ​ 0.00 % ​ ​ 0.00 % ​ The components of projected net periodic pension cost for the year ended December 31, 2023 and 2022 are as follows (amortization amounts will be recorded via charges or credits to “other comprehensive income”) (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Benefit obligation at beginning of the year ​ $ 4,998 ​ $ 4,549 Service cost ​ ​ 260 ​ ​ 232 Interest cost ​ ​ 261 ​ ​ 114 Plan amendments ​ ​ 430 ​ ​ 372 Actuarial loss (gain) ​ ​ 244 ​ ​ ( 30 ) Benefits paid ​ ​ ( 449 ) ​ ​ ( 239 ) Benefit obligation at end of the year ​ $ 5,744 ​ $ 4,998 ​ 102 Table of Contents The following schedule reflects the net periodic pension cost, contributions received, and benefits paid for the year ended December 31: ​ ​ ​ ​ ​ ​ ​ ​ (In thousands) ​ December 31, 2023 ​ December 31, 2022 Service cost ​ $ 260 $ 232 Interest cost ​ ​ 261 ​ ​ 114 Amortization of net actuarial losses ​ ​ 81 ​ ​ 85 Amortization of prior service costs ​ ​ 487 ​ ​ 57 Net periodic pension cost ​ $ 1,089 ​ $ 488 Employer contribution ​ $ 449 ​ $ 239 Benefits paid ​ $ 449 ​ $ 239 ​ The Company records an estimate of net periodic pension cost for the director pension plan to accrued retirement liabilities on the consolidated balance sheet on a quarterly basis. Equity adjustments, to accumulated other comprehensive loss, in conjunction with the pension plan are recorded by the Company annually upon receipt of the independent actuarial report. ​ The following estimated pension benefit payments, which reflect expected future service as appropriate, are expected to be paid over the next ten years (in thousands): ​ ​ ​ ​ ​ Estimated benefit payments ​ ​ ​ 2024 ​ $ 480 2025 ​ ​ 526 2026 ​ ​ 547 2027 ​ ​ 528 2028 ​ ​ 563 2029 and thereafter ​ ​ 3,682 Total ​ $ 6,326 ​ Note 10 – Income Taxes The components of income tax expense for the years ended December 31 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in thousands) ​ December 31, 2023 ​ December 31, 2022 Current tax expense ​ ​ ​ ​ ​ ​ Federal ​ $ 5,216 ​ $ 3,625 State ​ ​ 4,523 ​ ​ 3,951 ​ ​ ​ 9,739 ​ ​ 7,576 ​ ​ ​ ​ ​ ​ ​ Deferred tax expense (credits) ​ ​ ​ ​ ​ ​ Federal ​ ​ ( 5,704 ) ​ ​ ( 458 ) State ​ ​ ( 2,016 ) ​ ​ ( 795 ) ​ ​ ​ ( 7,720 ) ​ ​ ( 1,253 ) Total income tax expense ​ $ 2,019 ​ $ 6,323 ​ The Company’s effective tax rate differs from that computed at the statutory federal income tax rate for the years ended December 31 as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Statutory federal tax rate ​ ​ ​ ​ ​ ​ Increase (decrease) resulting from: ​ ​ 21.0 % ​ ​ 21.0 % State taxes, net of federal tax benefit ​ ​ 6.8 ​ ​ 6.9 Tax-exempt income ​ ​ ( 0.7 ) ​ ​ ( 0.9 ) Disallowed compensation under 162(m) ​ ​ 31.10 ​ ​ - Federal solar tax credits ​ ​ ( 39.8 ) ​ ​ ( 10.1 ) Income from bank-owned life insurance ​ ​ ( 3.6 ) ​ ​ ( 0.9 ) Bargain purchase gain ​ ​ 0.0 ​ ​ ( 0.9 ) Other, net ​ ​ 2.3 ​ ​ 2.3 Effective tax rate ​ ​ 17.1 % ​ ​ 17.4 % 103 Table of Contents ​ During the year ended December 31, 2023, the Company recognized $ 5.1 million in investment tax credits and $ 1.4 million in proportional amortization expense of its carrying basis in non-public investments, both of which are included in the income tax expense line item in the consolidated statements of income. The Company’s deferred income tax assets and liabilities at December 31 consist of the following: ​ ​ ​ ​ ​ ​ ​ ​ (In thousands) ​ 2023 ​ 2022 Deferred income tax assets: ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 9,058 ​ $ 7,035 Reserve for off balance sheet commitments ​ ​ 1,691 ​ ​ - Loan impairment charges ​ ​ 478 ​ ​ 491 Director retirement plans ​ ​ 1,236 ​ ​ 1,056 Deferred compensation ​ ​ 1,760 ​ ​ 1,963 Charitable contribution carryforward ​ ​ 5,363 ​ ​ - Non-accrual interest on loans ​ ​ 205 ​ ​ 184 Unrecognized pension cost on director pension plan ​ ​ 377 ​ ​ 348 Unrealized loss on investment securities available for sale ​ ​ 3,876 ​ ​ 4,805 Other ​ ​ 55 ​ ​ 29 Gross deferred income tax assets ​ ​ 24,099 ​ ​ 15,911 ​ ​ ​ ​ ​ ​ ​ Deferred income tax liabilities: ​ ​ ​ ​ ​ ​ Mortgage servicing rights ​ ​ ( 576 ) ​ ​ ( 646 ) Depreciation ​ ​ ( 1,752 ) ​ ​ ( 1,777 ) Unrealized gain on cash flow hedge ​ ​ - ​ ​ ( 90 ) Solar tax credit investment ​ ​ ( 2,300 ) ​ ​ ( 1,623 ) Bargain purchase gain ​ ​ ( 345 ) ​ ​ ( 387 ) Gross deferred income tax liabilities ​ ​ ( 4,973 ) ​ ​ ( 4,523 ) ​ ​ ​ ​ ​ ​ ​ Net deferred income tax asset ​ $ 19,126 ​ $ 11,388 ​ Based on the Company’s projected pretax earnings, management believes it is more likely than not that the Company will realize the gross deferred tax assets existing as of December 31, 2023. Therefore, no valuation allowance has been provided. The primary sources of recovery of the gross federal and state deferred tax assets is the expectation that the existing net deductible temporary differences will reverse during periods in which the Company generates net taxable income. There can be no assurance, however, that the Company will generate any earnings or any specific level of continuing earnings. It should be noted, however, that factors beyond management’s control, such as the general state of the economy and real estate values, can affect future levels of taxable income, and that no assurance can be given that sufficient taxable income will be generated to fully absorb gross deductible temporary differences. In the past, the Internal Revenue Code provisions permitted co-operative banks a special bad debt deduction, irrespective of the amounts provided for financial reporting purposes. As a result, the Company's total pre-1988 bad debt reserve for federal income tax purposes approximates $ 13,806,000 as of December 31, 2023, for which no deferred income tax liabilities have been recognized. Reduction of this amount for purposes other than to absorb bad debt losses would be subject to income taxes. The Company has not identified any uncertain tax positions requiring accrual or disclosure as of December 31, 2023 and 2022. The Company’s income tax returns are subject to review and examination by federal and state taxing authorities; however, there are currently no examinations for any tax periods in progress. Management of the Company believes it is no longer subject to examination for tax years prior to 2020. 104 Table of Contents Note 11 – Regulatory Capital Requirements The Company 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 Company’s financial statements. Under regulatory capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Company’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Effective January 1, 2020, the federal banking agencies published a final rule on a Community Bank Leverage Ratio (“CBLR”) Framework that provides a simplified measure of capital adequacy for qualified community banking organizations. Management has determined that the Company meets the standards to qualify under the CBLR framework and opted into this framework for FDIC call reporting purposes during 2020. Under the CBLR framework, a bank that maintains a CBLR of 9% (defined as Tier 1 capital divided by total average assets) is considered to have satisfied its capital requirements, determined to be well-capitalized, and will no longer be required to calculate risk-based capital ratios. As of December 31, 2023 the Bank met the minimum requirement with a CBLR of 13.6 %. As of December 31, 2022, the Company did not meet the requirement for the CBLR framework due to its unfunded loan commitments being over 25.00% of its capital for more than two consecutive quarters. As a result, the Company operated under the risk-based framework for the year ended December 31, 2022. Under this framework, quantitative measures established by regulation to ensure capital adequacy require the Company to maintain minimum amounts and ratios of Total Capital, Tier 1 Capital and Common Equity Tier 1 Capital to Risk-Weighted Assets, and Tier 1 Capital to Total Average Assets (as defined in the regulations). As of December 31, 2022, the Bank was categorized as well capitalized under this regulatory framework for prompt corrective action as presented in the table below (dollars in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ To be well capitalized ​ ​ ​ ​ ​ ​ ​ ​ For minimum capital ​ ​ under prompt corrective ​ ​ ​ Actual ​ ​ adequacy purposes ​ ​ action provisions December 31, 2022 Amount Ratio Amount Ratio Amount Ratio ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital ​ $ 382,417 ​ 11.3 % ​ $ 271,323 ​ 8.0 % ​ $ 339,153 ​ 10.0 % (to Risk-Weighted Assets) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tier 1 Capital ​ ​ 357,389 ​ 10.5 % ​ ​ 203,492 ​ 6.0 % ​ ​ 271,323 ​ 8.0 % (to Risk-Weighted Assets) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Common Equity Tier 1 Capital ​ ​ 357,389 ​ 10.5 % ​ ​ 152,619 ​ 4.5 % ​ ​ 220,450 ​ 6.5 % (to Risk-Weighted Assets) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tier 1 Capital ​ ​ 357,389 ​ 10.5 % ​ ​ 136,311 ​ 4.0 % ​ ​ 170,389 ​ 5.0 % (to Total Average Assets) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The Company’s consolidated capital ratios are consistent with the Bank’s regulatory capital ratios as reported above for December 31, 2023 and 2022. ​ Note 12 – Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk Off-Balance Sheet Risk – The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to originate loans, to disburse funds to borrowers on unused construction and land development loans, and to disburse funds on committed but unused lines of credit. These financial agreements involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the balance sheet. The contract amounts of these instruments reflect the extent of involvement the Company has in particular classes of financial instruments. Commitments to originate loans and disburse additional funds to borrowers on lines of credit are agreements to lend to a customer provided there is no violation of any condition established in the contract. Commitments generally have fixed 105 Table of Contents expiration dates or other termination clauses and may require payment of a fee. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the borrower. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for loan commitments, is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The commitments to originate loans and lines of credit may expire without being funded or drawn upon; therefore, the total commitment amounts do not necessarily represent future cash requirements. Financial instruments whose contract amounts represents off-balance sheet credit risk and are not reflected in the Company’s consolidated balance sheets consist of the following at the dates stated: ​ ​ ​ ​ ​ ​ ​ ​ (In thousands) ​ December 31, 2023 ​ December 31, 2022 Unused commitments to extend credit ​ $ 1,112,931 ​ $ 723,175 Letters of credit ​ ​ 7,471 ​ ​ 6,106 ​ Concentrations of Credit Risk – The Company’s financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents, investment securities, loans receivable, bank owned life insurance, borrowings, deposits and derivative financial instruments. Cash and Cash Equivalents – The Company’s cash and due from bank accounts are maintained in high credit quality financial institutions. At times, such amounts on deposit at any one financial institution may be in excess of the FDIC insurance limits. As of December 31, 2023, based on bank balances, the Company has no deposits in excess of federal-insured limits. As of December 31, 2023, the Company has approximately $ 182.1 million of uninsured investments in Federal Funds sold, which are obligations of the Federal Reserve. Investment Securities Available for Sale – The Company’s investment securities as of December 31, 2023 consist entirely of debt securities, primarily U.S. Treasury Securities, Corporate Bonds, Municipal Obligations and other Agency Mortgage-Backed Obligations. A full summary of the Company’s investment securities, of approximately $ 189.5 million as of December 31, 2023 and are classified as available for sale, is presented in Note 2. Loans Receivable – The Company’s most significant group of assets is its loan portfolio of $ 3.89 billion, which represents approximately 85 % of total assets. The majority of the Company’s loans, 64.0 %, are considered commercial loans, with 20 loans comprising 19.2 % of the total loan portfolio, and 30.7 % are considered residential real estate loans granted to customers in the metro-west area of Boston. Most customers are also depositors of the Bank. Of the unused commitments to extend credit as of December 31, 2023, 39.9 % is attributable to relationships with 15 borrowers. The concentrations of credit by type of loan are set forth in Note 3 to these consolidated financial statements. Bank Owned Life Insurance – The cash surrender values of bank owned life insurance policies approximate $ 50.5 million as of December 31, 2023, and relates to policies maintained with four reputable and sound life insurance companies. Deposits – As of December 31, 2023, $ 316.0 million ( 9.33 % of total deposits) of the Company’s deposit obligations are with customers in the cannabis industry. Borrowings – As of December 31, 2023, all of the Company’s borrowings approximating $ 283.3 million, which is 7.50 % of total liabilities, are with the FHLB. Derivative Financial Instruments – The Company’s derivative contracts, including collateral deposits, are held with several financial institution counterparties. The credit risk of the counterparties is reviewed quarterly to ensure liquidity and capital levels are appropriate to not present increased counterparty risk. 106 Table of Contents Note 13 – Fair Value Measurements The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The Company records fair value adjustments to certain assets and liabilities and determines fair value disclosures utilizing a definition of fair value of assets and liabilities that states that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is best determined using quoted market prices, however additional considerations are involved to determine the fair value of financial assets in markets that are not active. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available to management. FASB ASC 820, “Fair Value Measurement and Disclosures Topic,” defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value. Generally accepted accounting principles establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value, and gives the highest priority to quoted prices in active markets for identical assets and liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: Level 1 – Observable inputs such as quoted prices in active markets. Level 2 – Observable inputs other than Level 1 inputs 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 for substantially the full term of the assets or liabilities. Level 3 – Unobservable inputs that are supported by little or no market data and are significant to the fair value measurement of the assets or liabilities. Level 3 inputs include fair value measurements that use pricing models, discounted cash flow methodologies, or similar techniques, as well as significant management judgment or estimation. The following describes the valuation techniques used by the Company to measure certain financial assets and liabilities recorded at fair value on a recurring basis in the financial statements. Investment securities – Where quoted prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. Level 1 securities would include highly liquid government bonds (such as US Treasuries), mortgage products and exchange traded equities. If quoted market prices are not available, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics, or discounted cash flows. Level 2 securities would include U.S. agency securities, mortgage-backed agency securities, obligations of states and political subdivisions, and certain corporate, asset-backed and other securities. In certain cases where there is limited activity or less transparency around inputs to the valuation, securities are classified within Level 3 of the valuation hierarchy. The carrying value of restricted FRB and FHLB stock approximates fair value based upon the redemption provisions of each entity and is therefore excluded from the following table. Derivative arrangements – The fair values of derivative arrangements are estimated by the Company using a third-party derivative valuation expert who relies on Level 2 inputs, namely interest cash flow models to determine a fair value by calculating a settlement termination value with the counterparty. 107 Table of Contents Assets measured and reported at estimated fair value on a recurring basis are summarized below (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 ​ Level 2 ​ Level 3 ​ Fair Value Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Available-for-sale securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury securities ​ $ 64,352 ​ $ — ​ $ — ​ $ 64,352 Agency mortgage-backed securities ​ ​ — ​ ​ 11,430 ​ ​ — ​ ​ 11,430 Agency collateralized mortgage obligations ​ ​ — ​ ​ 2,418 ​ ​ — ​ ​ 2,418 Corporate bonds ​ ​ — ​ ​ 82,367 ​ ​ 9,868 ​ ​ 92,235 Municipal obligations ​ ​ — ​ ​ 19,030 ​ ​ — ​ ​ 19,030 ​ ​ $ 64,352 ​ $ 115,245 ​ $ 9,868 ​ $ 189,465 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivative assets ​ $ — ​ $ 27,769 ​ $ — ​ $ 27,769 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivative liabilities ​ $ — ​ $ 27,786 ​ $ — ​ $ 27,786 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Level 1 ​ Level 2 ​ Level 3 ​ Fair Value Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Available-for-sale securities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury securities ​ $ 106,801 ​ $ — ​ $ — ​ $ 106,801 Agency mortgage-backed securities ​ ​ — ​ ​ 12,141 ​ ​ — ​ ​ 12,141 Agency collateralized mortgage obligations ​ ​ — ​ ​ 3,073 ​ ​ — ​ ​ 3,073 Corporate bonds ​ ​ — ​ ​ 92,807 ​ ​ 9,000 ​ ​ 101,807 Municipal obligations ​ ​ — ​ ​ 21,658 ​ ​ — ​ ​ 21,658 ​ ​ $ 106,801 ​ $ 129,679 ​ $ 9,000 ​ $ 245,480 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap (cash flow hedge) ​ $ — ​ $ 321 ​ $ — ​ $ 321 Derivative assets ​ $ — ​ $ 31,483 ​ $ — ​ $ 31,483 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivative liabilities ​ $ — ​ $ 31,492 ​ $ — ​ $ 31,492 ​ The Company purchased $ 3.0 million in level 3 subordinated debentures during the year ended December 31, 2022. There were no purchases during the year ended December 31, 2023. There were no sales or transfers of level 3 assets during the year ended December 31, 2023 or 2022. The changes in level 3 subordinated debentures during the year ended December 31, 2023 are attributable to total net gains (losses) included in other comprehensive income The Company may also be required from time to time to measure certain other assets on a non-recurring basis in accordance with generally accepted accounting principles. Any adjustments to fair value usually result in write-downs of individual assets. Collateral-Dependent Loans – Collateral-dependent loans with specific reserves are carried at fair value, which equals the estimated market value of the collateral less estimated costs to sell. Collateral may be in the form of real estate or business assets including equipment, inventory, and accounts receivable. A loan may have multiple types of collateral; however, the majority of the Company’s loan collateral is real estate. The value of real estate collateral is generally determined utilizing a market valuation approach based on an appraisal conducted by an independent, licensed appraiser outside of the Company using observable market data (Level 2). However, if the collateral value is significantly adjusted due to differences in the comparable properties or is discounted by the Company because of lack of marketability, then the fair value is considered Level 3. The value of business equipment is based upon an outside appraisal if deemed significant or the net book value on the applicable borrower’s financial statements if not considered significant. Likewise, values for inventory and accounts receivables collateral are based on financial statement balances or aging reports (Level 3). Fair value adjustments are recorded in the period incurred as provision for credit losses on the consolidated statements of income. 108 Table of Contents Mortgage Servicing Rights – Mortgage servicing rights do not trade in an active market with readily observable market data. As a result, the Company estimates the fair value of mortgage servicing rights by using a discounted cash flow model to calculate the present value of estimated future net servicing income. The assumptions used in the discounted cash flow model are those that market participants would use in estimating future net servicing income. Assumptions in the valuation of mortgage servicing rights may include estimated loan repayment rates, the discount rate, servicing costs, and the timing of cash flows, among other factors. The Company measures the fair value of mortgage servicing rights accounted for using the amortization method as nonrecurring Level 3. The Company had no liabilities measured at fair value on a non-recurring basis. The following table summarizes assets measured at fair value on a non-recurring basis: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ (in thousands) ​ Level 1 Level 2 Level 3 Fair Value Collateral-dependent loans ​ $ — ​ $ — ​ $ 4,432 ​ $ 4,432 Mortgage servicing rights ​ $ — ​ $ — ​ $ 2,640 ​ $ 2,640 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ (in thousands) ​ Level 1 Level 2 Level 3 Fair Value Impaired Loans - Pre-ASC 326 ​ $ — ​ $ — ​ $ 8,960 ​ $ 8,960 Mortgage servicing rights ​ $ — ​ $ — ​ $ 2,781 ​ $ 2,781 ​ For Level 3 assets and liabilities measured at fair value on a nonrecurring basis as of December 31, 2023 and 2022, the significant unobservable inputs used in the fair value measurements were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ Significant Significant ​ ​ Valuation ​ Observable ​ Unobservable December 31, 2023 ​ Technique ​ Inputs ​ Inputs Collateral-dependent loans (previously known as impaired loans) Appraisal Value/ Comparison Sales Appraisals and/or sales of comparable properties Appraisals discounted 5 to 20 % for sales commission and other holding costs ​ ​ ​ ​ ​ ​ ​ Mortgage servicing rights Discounted Cash Flows Comparable sales Weighted average discount rate - 8 % Constant prepayment rate – 5 % ​ Significant Significant ​ ​ Valuation ​ Observable ​ Unobservable December 31, 2022 ​ Technique ​ Inputs ​ Inputs Impaired Loans Appraisal Value/ Comparison Sales Appraisals and/or sales of comparable properties Appraisals discounted 5 to 20 % for sales commission and other holding costs ​ ​ ​ ​ ​ ​ ​ Mortgage servicing rights Discounted Cash Flows Comparable sales Constant prepayment rate - 5 % Weighted average discount rate - 8 % ​ Fair Value of Financial Instruments – The following table includes the estimated fair value of the Company’s financial assets and financial liabilities. The methodologies for estimating the fair value of financial assets and financial liabilities measured on a recurring and nonrecurring basis are discussed above. The methodologies for estimating the fair value for other financial assets and financial liabilities are discussed below. The estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret market data in order to develop the estimates of fair value. Accordingly, the estimates presented below are not necessarily indicative of the amounts the Company could realize in a current market exchange. The use of different market assumptions and/or estimation techniques may have a material effect on the estimated fair value amounts at December 31, 2023 and 2022. 109 Table of Contents The following tables present the estimated fair values, related carrying amounts, and valuation level of the financial instruments as of the dates stated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in thousands) Value Fair Value Level 1 Level 2 Level 3 Financial Assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 272,591 ​ $ 272,591 ​ $ 272,591 ​ $ — ​ $ — Non-public investments ​ 13,713 ​ 13,713 ​ — ​ — ​ 13,713 Loans receivable, net ​ 3,857,057 ​ 3,732,361 ​ — ​ — ​ 3,732,361 Accrued interest receivable ​ 17,284 ​ 17,284 ​ — ​ 17,284 ​ — Bank owned life insurance ("BOLI") ​ 50,516 ​ 50,516 ​ — ​ 50,516 ​ — Financial Liabilities ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ $ 528,409 ​ $ 528,409 ​ $ 528,409 ​ $ — ​ $ — Savings, NOW and money markets ​ 1,361,904 ​ 1,361,904 ​ — ​ 1,361,904 ​ — Time deposits ​ 1,497,035 ​ 1,495,008 ​ — ​ — ​ 1,495,008 FHLB borrowings ​ 283,338 ​ 283,172 ​ — ​ 283,172 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements ​ ​ Carrying ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in thousands) Value Fair Value Level 1 Level 2 Level 3 Financial Assets ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 156,545 ​ $ 156,545 ​ $ 156,545 ​ $ — ​ $ — Non-public investments ​ 10,592 ​ 10,592 ​ — ​ — ​ 10,592 Loans receivable, net ​ 2,990,417 ​ 2,928,734 ​ — ​ — ​ 2,928,734 Accrued interest receivable ​ 10,837 ​ 10,837 ​ — ​ 10,837 ​ — Bank owned life insurance ("BOLI") ​ 49,006 ​ 49,006 ​ — ​ 49,006 ​ — Financial Liabilities ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ $ 445,518 ​ $ 445,518 ​ $ 445,518 ​ $ — ​ $ — Savings, NOW and money markets ​ 1,231,606 ​ 1,231,606 ​ — ​ 1,231,606 ​ — Time deposits ​ 1,209,619 ​ 1,194,871 ​ — ​ — ​ 1,194,871 FHLB borrowings ​ 293,082 ​ 293,056 ​ — ​ 293,056 ​ — ​ Cash and cash equivalents – The carrying amount approximates fair value for these instruments. Non-public investments – Non-public investments are carried at original cost basis, as cost or accounted for using the equity method. This approximates fair value as there is no ready market for such investments. Loans receivable, net – Fair values are estimated for portfolios of loans with similar financial characteristics if collateral dependent. Loans are segregated by type. The fair value of performing loans is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect observable market information incorporating the credit, liquidity, yield and other risks inherent in the loan. The estimate of maturity is based upon the Company’s historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of the current economic and lending conditions. Fair value for significant non-performing loans is generally based upon recent external appraisals. If appraisals are not available, estimated cash flows are discounted using a rate commensurate with the risk associated with the estimated cash flows. Assumptions regarding credit risk, cash flows and discounted rates are judgmentally determined using available market information and specific borrower information. Accrued interest receivable – The carrying amount approximates fair value for these instruments. Bank – owned life insurance – Bank-owned life insurance is carried at net cash surrender value of the polices which approximates fair value since that is the approximate liquidation value of these assets. 110 Table of Contents Deposits – The fair value of deposits with no stated maturity date, such as noninterest-bearing demand deposits, savings, NOW and money market accounts, is based on the carrying value. The fair value of time deposits is based upon the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. Federal Home Loan Bank borrowings – Fair value is estimated based on discounted cash flows using current market rates for borrowings with similar terms. ​ Note 14 – Derivatives and Hedging Activities Risk Management Objective of Using Derivatives – The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s assets and liabilities. Fair Value Hedges of Interest Rate Risk – The Company is exposed to changes in the fair value of certain of its pools of pre-payable fixed-rate assets due to changes in benchmark interest rates. The Company uses interest rate swap agreements to manage its exposure to changes in the fair value of these instruments attributable to changes in the designated benchmark interest rate. Interest rate swap agreements designated as fair value hedges involve the payment of fixed-rate amounts to a counterparty in exchange for the Company receiving variable-rate payments over the life of the agreements without the exchange of the underlying notional amount. For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. The Company had previously entered into two “last of layer hedges” on a significant portion of its fixed rate residential loan pool. These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to remain at the end of the hedging relationship. During September 2021, the Company terminated these last of layer hedges by paying out $ 2.15 million to the respective third parties. These fees were capitalized into loans receivable and are being amortized against loan income over the contractual lives of the remaining designated residential loans. The unamortized amount of this cost basis adjustment is $ 1.0 million and $ 1.2 million at December 31, 2023 and 2022, respectively. Non-designated Hedges – Derivatives not designated as hedges are not speculative and are used to manage the Company’s exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements and/or the Company has not elected to apply hedge accounting. Changes in the fair value of derivatives not designated in hedging relationships, exclusive of credit valuation adjustments, are recorded directly in earnings. The Company executes interest rate swaps and cap agreements with commercial banking customers to facilitate its respective risk management strategies. Those interest rate swap and cap agreements are simultaneously hedged by offsetting interest rate swaps and caps that are executed with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As of December 31, 2023, the Company had 52 interest rate swap agreements with an aggregate notional amount of $ 338.58 million related to this program. As of December 31, 2022, the Company had 36 interest rate swap agreements and one interest rate cap agreement with an aggregate notional amount of $ 263.9 million related to this program. Risk Participation Agreements – Risk Participation Agreements (“RPAs”) are guarantees issued by the Company to other parties for a fee, whereby the Company agrees to participate in the credit risk of a derivative customer of the other party. 111 Table of Contents Under the terms of these agreements, the “participating bank” receives a fee from the “lead bank” in exchange for the guarantee of reimbursement if the customer defaults on an interest rate swap. The interest rate swap is transacted such that any and all exchanges of interest payments (favorable and unfavorable) are made between the lead bank and the customer. In the event that an early termination of the swap occurs, and the customer is unable to make a required close out payment, the participating bank assumes that obligation and is required to make this payment. RPAs where the Company acts as the lead bank are referred to as “participations-out,” in reference to the credit risk associated with the customer derivatives being transferred out of the Company. Participations-out generally occur concurrently with the sale of new customer derivatives. RPAs where the Company acts as the participating bank are referred to as “participations-in,” in reference to the credit risk associated with the counterparty’s derivatives being assumed by the Company. The Company’s maximum credit exposure is based on its proportionate share of the settlement amount of the referenced interest rate swap. Settlement amounts are generally calculated based on the fair value of the swap plus outstanding accrued interest receivable from the customer. As of December 31, 2023, the Company had 16 RPAs with an aggregate notional amount of $ 44.5 million related to this program compared to 8 RPAs with an aggregate notional amount of $ 31.4 million as of December 31, 2022. These RPAs all represent “participations-in” and generally have terms ranging from five to ten years . Tabular Disclosure of Fair Values of Derivative Instruments on the Consolidated Balance Sheet – The table below presents the fair value of the Company’s derivative financial instruments not designated as hedging instruments, as well as their classification on the consolidated balance sheets as of the dates stated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Asset ​ Liability December 31, 2023 ​ Derivatives (1) ​ ​ Derivatives (2) Derivatives not designated as hedging instruments: ​ ​ ​ ​ ​ ​ Interest rate products ​ $ 27,769 ​ $ 27,769 RPA credit contracts ​ ​ — ​ ​ 17 Total derivatives not designated as hedging instruments ​ $ 27,769 ​ $ 27,786 ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ ​ Derivatives not designated as hedging instruments: ​ ​ ​ ​ ​ ​ Interest rate products ​ $ 31,483 ​ $ 31,483 RPA credit contracts ​ ​ — ​ ​ 9 Total derivatives not designated as hedging instruments ​ $ 31,483 ​ $ 31,492 (1) Recorded in prepaid expenses and other assets on the consolidated balance sheets (2) Recorded in accrued expenses and other liabilities on the consolidated balance sheets ​ The table below presents the financial impact of the Company’s derivative financial instruments not designated as hedges in the consolidated statements of income, caused by changes in fair value and default termination fees paid on the swap arrangements for the year ended December 31 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Location of Gain or (Loss) ​ ​ ​ ​ ​ ​ ​ Recognized ​ Year ended December 31 ​ in Income on Derivative 2023 2022 Derivatives Not Designated as Hedging Instruments: ​ ​ RPA credit contracts-fair value adjustments Other non-interest income ​ $ ( 8 ) ​ $ 19 ​ Swap contract fees, net of brokerage costs, recognized in earnings on the above noted interest rate products and RPA contracts approximated $ 2.2 million and $ 1.3 million for the years ended December 31, 2023 and 2022, respectively. The Company has agreements with each of its derivative counterparties that contain a provision where if the Company defaults (or is capable of being declared in default) on any of its indebtedness, then the Company could also be declared in default on its derivative obligations, and it could be required to terminate its derivative positions with the counterparty. The Company also has agreements with certain of its derivative counterparties that contain a provision whereby if the counterparty fails to maintain its status as a well-capitalized institution, then the Company could be required to terminate its derivative positions with the counterparty. In order to mitigate counterparty default risk in conjunction with these 112 Table of Contents interest rate products and RPA credit contracts, the Company was required to maintain collateral deposit accounts with the counterparties to these agreements in amounts of $ 9.1 million and $ 8.6 million at December 31, 2023 and 2022. ​ Note 15 – Other Comprehensive Income The components of the Company’s “Accumulated Other Comprehensive Income”, along with the changes during the dates stated (net of deferred income tax effects), are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gain Director Unrealized Gain Total Accumulated ​ ​ (Loss) on AFS ​ Pension ​ (Loss) on Cash ​ Other Comprehensive ​ ​ Securities ​ Plan ​ Flow Hedge ​ Income (Loss) Balances at December 31, 2021 ​ $ ( 639 ) ​ $ ( 749 ) ​ $ ( 884 ) ​ $ ( 2,272 ) Other comprehensive (losses) income, net of taxes ​ ( 13,100 ) ​ ( 144 ) ​ 1,115 ​ ( 12,129 ) Balances at December 31, 2022 ​ $ ( 13,739 ) ​ $ ( 893 ) ​ $ 231 ​ $ ( 14,401 ) Other comprehensive income (losses), net of taxes ​ 2,811 ​ ( 76 ) ​ ( 231 ) ​ 2,504 Balances at December 31, 2023 ​ $ ( 10,928 ) ​ $ ( 969 ) ​ $ — ​ $ ( 11,897 ) ​ The following table presents a reconciliation of the changes in the components of “other comprehensive income” and the reclassifications out of “accumulated other comprehensive income” (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tax ​ ​ ​ ​ ​ Before-Tax ​ (Expense) ​ After-Tax Year Ended December 31, 2023 Amount Benefit Amount Unrealized Gains on AFS Securities: ​ ​ ​ Unrealized holding gains arising during the year ​ $ 3,740 ​ $ ( 929 ) ​ $ 2,811 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrecognized Pension Losses from Director Pension Plan: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net actuarial losses arising during the year ​ ​ ( 244 ) ​ ​ 69 ​ ​ ( 175 ) New prior service costs related to plan amendments ​ ​ ( 430 ) ​ ​ 123 ​ ​ ( 307 ) Reclassification adjustments into net periodic pension cost: ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortization of prior service costs ​ ​ 487 ​ ​ ( 139 ) ​ ​ 348 Amortization of net actuarial losses ​ ​ 81 ​ ​ ( 23 ) ​ ​ 58 Net change in unrecognized pension cost ​ ​ ( 106 ) ​ ​ 30 ​ ​ ( 76 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Losses on Cash Flow Hedge: ​ ​ ​ Unrealized holding losses arising during the year ​ ( 321 ) ​ 90 ​ ( 231 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total other comprehensive income ​ $ 3,313 ​ $ ( 809 ) ​ $ 2,504 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tax ​ ​ ​ ​ ​ Before-Tax ​ (Expense) ​ After-Tax Year Ended December 31, 2022 Amount Benefit Amount Unrealized Losses on AFS Securities: ​ ​ ​ Unrealized holding losses arising during the year ​ $ ( 17,657 ) ​ $ 4,557 ​ $ ( 13,100 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrecognized Pension Losses from Director Pension Plan: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net actuarial gains arising during the year ​ ​ 30 ​ ​ ( 8 ) ​ ​ 22 New prior service costs related to plan amendments ​ ​ ( 372 ) ​ ​ 104 ​ ​ ( 268 ) Reclassification adjustments into net periodic pension cost: ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortization of prior service costs ​ ​ 57 ​ ​ ( 16 ) ​ ​ 41 Amortization of net actuarial losses ​ ​ 85 ​ ​ ( 24 ) ​ ​ 61 Net change in unrecognized pension cost ​ ​ ( 200 ) ​ ​ 56 ​ ​ ( 144 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized Gains on Cash Flow Hedge: ​ ​ ​ Unrealized holding gains arising during the year ​ 1,548 ​ ( 433 ) ​ 1,115 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total other comprehensive loss ​ $ ( 16,309 ) ​ $ 4,180 ​ $ ( 12,129 ) ​ ​ ​ 113 Table of Contents Note 16 – Transactions with Officers and Directors The Company has banking transactions with certain of its officers and directors. These transactions were made in the ordinary course of business, on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable loans with persons not deemed related parties to the Company and did not involve more than the normal risk of collectability or present other unfavorable features. The following table presents loan transactions with such related parties as of December 31 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2023 2022 Balance at beginning of the year ​ $ 2,245 ​ $ 2,683 New loans ​ ​ 3,150 ​ ​ — Repayments ​ ​ ( 2,002 ) ​ ​ ( 438 ) Balance at the end of the year ​ $ 3,393 ​ $ 2,245 ​ The Bank held related party deposits of approximately $ 1.6 million and $ 3.0 million as of December 31, 2023 and 2022, respectively. Note 17 – Earnings Per Share (“EPS) Basic EPS represents net income available to common shareholders divided by the weighted-average number of common shares outstanding during the year. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common shares (such as stock options) were exercised or converted into additional common shares that would then share in the earnings of the entity. Diluted EPS is computed by dividing net income attributable to common shareholders by the weighted-average number of common shares outstanding for the year, plus the effect of potential dilutive common share equivalents computed using the treasury stock method. There were no securities that had a dilutive effect during the year ended December 31, 2023, and therefore the weighted-average common shares outstanding used to calculate both basic and diluted EPS are the same. Unallocated ESOP shares are not deemed outstanding for earnings per share calculations. Earnings per share data is not applicable for the years ended December 31, 2022 as the Company had no shares outstanding. ​ ​ ​ ​ ​ (Dollars in thousands, except per share data) For the Year Ended December 31, 2023 Net income applicable to common shares ​ $ 9,825 ​ ​ ​ ​ Average number of common shares outstanding ​ ​ 42,705,729 Less: average unallocated ESOP shares ​ ​ ( 687,500 ) Average number of common shares outstanding used to calculate basic EPS ​ ​ 42,018,229 Common stock equivalents ​ ​ - Average number of common shares outstanding used to calculate diluted EPS ​ ​ 42,018,229 Earnings per common share: ​ ​ ​ Basic and diluted ​ $ 0.23 ​ ​ Note 18 – Parent Company Only Financial Information The following information presents the condensed balance sheet of NB Bancorp, Inc. as of December 31, 2023 (in thousands). ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2023 Assets ​ ​ ​ Cash and cash equivalents ​ $ 207,685 Investment in consolidated subsidiary ​ ​ 576,480 Total assets ​ ​ 784,165 Liabilities and Shareholders' Equity ​ ​ ​ Other liabilities ​ ​ 26,206 Total shareholders' equity ​ ​ 757,959 Total liabilities and shareholders' equity ​ $ 784,165 ​ 114 Table of Contents The following information presents the statement of income and statement of cash flows of NB Bancorp, Inc. for the year ended December 31, 2023 (in thousands). ​ ​ ​ ​ ​ ​ Year ended ​ ​ December 31, ​ ​ 2023 Interest income ​ $ 233 Charitable contribution expense ​ ​ 19,082 Other expenses ​ ​ 30 Loss before income taxes and equity in undistributed net income of subsidiary ​ ​ ( 18,879 ) Income taxes ​ ​ 5,318 Loss before equity in undistributed net income of subsidiary ​ ​ ( 13,561 ) Equity in undistributed net income of subsidiary ​ ​ 23,386 Net income ​ $ 9,825 ​ ​ ​ ​ ​ ​ ​ Year ended ​ ​ December 31, ​ ​ 2023 Cash flows from operating activities: ​ ​ ​ Net income ​ $ 9,825 Adjustments to reconcile net income to net cash used in operating activities: ​ ​ ​ Changes in other liabilities ​ ​ 26,206 Equity in undistributed net income of subsidiary ​ ​ ( 23,386 ) Net cash used in operating activities ​ ​ 12,645 Cash flows from investing activities: ​ ​ ​ Investment in Needham Bank ​ ​ ( 208,643 ) Net cash used in investing activities ​ ​ ( 208,643 ) Cash flows from financing activities: ​ ​ ​ Net proceeds from stock offering and issuance of common shares ​ ​ 417,457 Purchase of common shares by the ESOP ​ ​ ( 13,774 ) Net cash provided by financing activities: ​ ​ 403,683 Net increase in cash and cash equivalents ​ ​ 207,685 Cash and cash equivalents at beginning of the period ​ ​ - Cash and cash equivalents at end of the period ​ $ 207,685 ​ ​ Note 19 – Litigation Matters ​ Various legal claims arise from time to time in the normal course of business which, in the opinion of management, at December 31, 2023, will not have a material effect on the Company’s consolidated financial statements. 115 Table of Contents Note 20 – Purchase and Assumption Agreement On January 14, 2022, Needham Bank entered into a purchase and assumption agreement with Eastern Bank for the transfer of Eastern Bank’s cannabis and money service banking businesses. As part of the agreement, customer relationships transitioned to Needham Bank on April 1, 2022. The Eastern Bank team that served this customer base transitioned to Needham Bank and are now employed at the Company’s new branch location in Medford, therefore the Company treated this as a business combination. Approximately $ 297.7 million in deposits transitioned from Eastern Bank to Needham Bank. Also, as a result of this transaction Needham Bank recognized a core deposit intangible of approximately $ 1.5 million as well as a corresponding after-tax bargain purchase gain of approximately $ 1.1 million. The core deposit intangible is being amortized over a 10 - year period resulting in amortization expense of $ 149,000 and $ 112,000 during the years ended December 31, 2023 and 2022, respectively. Note 21 – Employee Retention Tax Credit Claims The CARES Act provided for an Employee Retention Tax Credit (“ERTC”), which is a broad-based refundable payroll tax credit that incentivized businesses to retain employees on the payroll during the COVID-19 pandemic. The ERTC is a credit against certain employment taxes of up to $5,000 per employee for eligible employers based on certain wages paid after March 12, 2020 through December 31, 2020. In 2021, the ERTC increased to up to $7,000 for each quarter, equal to 70% of qualified wages paid to employees during a quarter, capped at $10,000 of qualified wages per employee per quarter. The ERTC terminated effective September 30, 2021. During the first quarter of 2023, the Company made a determination that it was eligible to claim Employee Retention Tax Credits (“ERTC”) in the form of refunds based on the significant adverse financial impacts of the COVID-19 pandemic. As a result, during 2023 the Company filed amended employment tax returns for certain periods in 2021 to claim refunds related to the ERTC in the approximate amount of $ 3.5 million. Eligibility and qualification to file a claim for the ERTC is self-determined. Regardless of whether ERTC claims are pending payment by the IRS or have already been received by the taxpayer, Congress has extended the time by which the IRS could audit ERTC claims from three years to five years . Note 22 – Variable Interest Entities (“VIE”) The Company makes equity investments in various entities that are considered VIEs, as defined by GAAP. A VIE typically does not have sufficient equity at risk to finance its activities without additional subordinated financial support from other parties. The Company’s variable interest arises from contractual, ownership or other monetary interests in the entity, which change with fluctuations in the fair value of the entity's net assets. The Company consolidates a VIE if it is the primary beneficiary of the entity. The Company is determined to be the primary beneficiary of a VIE if its variable interest provides it with the power to direct the activities that most significantly impact the VIE and the right to receive benefits (or the obligation to absorb losses) that could potentially be significant to the VIE. To determine whether or not a variable interest held could potentially be significant to the VIE, the Company considers both qualitative and quantitative factors regarding the nature, size and form of its involvement with the VIE. The Company assesses whether or not it is the primary beneficiary of a VIE on an ongoing basis. Unconsolidated Variable Interest Entities Low Income Housing Tax Credit (“LIHTC”) Partnerships Through designated wholly-owned subsidiaries, Needham Bank makes equity investments as a limited partner in various partnerships that sponsor affordable housing projects utilizing the LIHTC. The purpose of these investments is to achieve a satisfactory return on capital and to support the Company’s community reinvestment initiatives. LIHTC partnerships are managed by unrelated general partners that have the power to direct the activities which most significantly affect the performance of the partnerships. The Company is therefore not the primary beneficiary of any LIHTC partnerships. Accordingly, the Company does not consolidate these VIEs and accounts for these investments in non-public investments on the consolidated balance sheets. 116 Table of Contents The Company accounts for all qualifying LIHTC investments under the proportional amortization method. Under this method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance as a component of income tax expense. Renewable Energy Tax Credit Investments The Company invests in renewable energy tax credits, through its wholly-owned subsidiary, 1892 Investments, whereby the Company contributes capital to the energy providers as a non-managing member in return for income tax credits. The purpose of these investments is to achieve a satisfactory return on capital and to support clean-energy initiatives. These entities are considered VIEs as the Company’s subsidiaries represent the holders of the equity investments at risk, but do not have the ability to direct the activities that most significantly affect the performance of the entities. Accordingly, the Company does not consolidate these VIEs and accounts for these investments in non-public investments on the consolidated balance sheets. The Company accounts for all qualifying renewable energy tax credit investments under the proportional amortization method. Under this method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance as a component of income tax expense. Note 23 – Recently Issued Accounting Pronouncements The following is a summary of recent authoritative announcements: In June 2022, the FASB issued ASU 2022-03, “Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions”. ASU 2022-03 clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The ASU is effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2023. Early adoption is permitted. The Company does not expect the adoption of ASU 2022-03 to have a material impact on its consolidated financial statements. In December 2022, the FASB issued ASU 2022-06, “Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848”. ASU 2022-06 extends the period of time preparers can utilize the reference rate reform relief guidance in Topic 848. The objective of the guidance in Topic 848 is to provide relief during the temporary transition period, so the FASB included a sunset provision within Topic 848 based on expectations of when the London Interbank Offered Rate (LIBOR) would cease being published. In 2021, the UK Financial Conduct Authority (FCA) delayed the intended cessation date of certain tenors of USD LIBOR to June 30, 2023. To ensure the relief in Topic 848 covers the period of time during which a significant number of modifications may take place, the ASU defers the sunset date of Topic 848 from December 31, 2022, to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. The ASU is effective for all entities upon issuance. The Company is assessing ASU 2022-06 and its impact on the Company’s transition away from LIBOR for its loan and other financial instruments that have not already been transitioned to an alternative reference rate. In July 2023, the FASB issued ASU 2023-03, “Presentation of Financial Statements (Topic 205), Income Statement—Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation—Stock Compensation (Topic 718)”. This ASU amends the FASB Accounting Standards Codification for SEC paragraphs pursuant to SEC Staff Accounting Bulletin No. 120, SEC Staff Announcement at the March 24, 2022 EITF Meeting, and Staff Accounting Bulletin Topic 6.B, Accounting Series Release 280—General Revision of Regulation S-X: Income or Loss Applicable to Common Stock. ASU 2023-03 is effective upon addition to the FASB Codification. The Company does not expect the adoption of ASU 2023-03 to have a material impact on its consolidated financial statements. In November 2023, the FASB amended ASC 2023-07, "Segment Reporting (Topic 280)" to improve disclosures about a public entity's reportable segments and provide more detailed information about a reportable segment's expense. The amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years 117 Table of Contents beginning after December 15, 2024. Early adoption is permitted. The Company does not expect these amendments to have a material effect on its consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" to improve the transparency of income tax disclosures. The amendments are effective for annual periods beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The Company does not expect these amendments to have a material effect on its consolidated financial statements. ​ Other accounting standards that have been issued or proposed by the FASB or other standards-setting bodies are not expected to have a material impact on the Company’s financial position, results of operations or cash flows. ​ ​ ​ 118 Table of Contents ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure None.