MainStreet Bancshares Inc. Reports a Profitable 2025 and remains focused on serving the Washington, DC Metropolitan Community

MainStreet Bancshares Inc. Reports a Profitable 2025 and remains focused on serving the Washington, DC Metropolitan Community Strategic Balance Sheet Management Yields a Healthy Net Interest Margin , /PRNewswire/ -- MainStreet Bancshares, Inc. (Nasdaq: MNSB & MNSBP), the financial holding company for MainStreet Bank, reported a net income of $15.6 million for the year-ended December 31, 2025, resulting in earnings per common share of $1.76. The Company executed a buyback of 209,000 shares during the fourth quarter as part of its share buyback plan. The Company and Bank remain strongly capitalized. "The team delivered quickly on our focused return to core banking," said Jeff W. Dick, Chairman and CEO of MainStreet Bancshares, Inc. and MainStreet Bank. "We are steadfast in increasing profitability and primed to go forward." "The net interest margin expanded to 3.46% for 2025, a 33-basis point increase from the previous year," said Alex Vari, Chief Financial Officer of MainStreet Bancshares, Inc. and MainStreet Bank. "We plan to preserve and grow this strong net interest margin and continue to control our expenses to enhance our future performance. We are laser-focused on building a strong balance sheet and our portfolio is well-positioned for the current and anticipated interest rate environment." "We continue to prove positive outcomes as we manage our asset quality and grow our loan portfolio," said Tom Floyd, Chief Lending Officer of MainStreet Bank. "Our team increased gross loans by $54 million in the fourth quarter, and we're encouraged by the momentum carrying into this year." About MainStreet Bank: MainStreet Bank is coming to Middleburg, Virginia in February 2026! Our newest branch will be located at 10 North Pendleton Street, Middleburg, Virginia 20118. In addition, MainStreet operates six branches in Herndon, Fairfax, McLean, Leesburg, Clarendon, and Washington, D.C. MainStreet Bank has over 55,000 free ATMs and a fully integrated online and mobile banking solution. The Bank is not restricted by a conventional branching system, as it can offer business customers the ability to Put Our Bank in Your Office®. With robust and easy-to-use online business banking technology, MainStreet has "put our bank" in thousands of businesses in the metropolitan area. MainStreet Bank has a robust line of business and professional lending products, including government contracting lines of credit, commercial lines and term loans, residential and commercial construction, and commercial real estate. MainStreet also works with the SBA to offer 7A and 504 lending solutions. From sophisticated cash management to enhanced mobile banking and instant-issue Debit cards, MainStreet Bank is always looking for ways to improve our customer's experience. MainStreet Bank was the first community bank in the Washington, D.C., metropolitan area to offer a full online business banking solution. MainStreet Bank was also the first bank headquartered in the Commonwealth of Virginia to offer CDARS – a solution that provides multi-million-dollar FDIC insurance. Further information on the Bank can be obtained by visiting its website at mstreetbank.com. This release contains forward-looking statements, including our expectations with respect to future events that are subject to various risks and uncertainties. The statements contained in this release that are not historical facts are forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. Words such as "may," "will," "could," "should," "expect," "plan," "project," "intend," "anticipate," "believe," "estimate," "predict," "potential," "pursuant," "target," "continue," and similar expressions are intended to identify such forward-looking statements. Factors that could cause actual results to differ materially from management's projections, forecasts, estimates and expectations include: fluctuation in market rates of interest and loan and deposit pricing, adverse changes in the overall national economy as well as adverse economic conditions in our specific market areas, future impacts of pandemic outbreaks, maintenance and development of well-established and valued client relationships and referral source relationships, and acquisition or loss of key production personnel. We caution readers that the list of factors above is not exclusive. The forward-looking statements are made as of the date of this release, and we may not undertake steps to update the forward-looking statements to reflect the impact of any circumstances or events that arise after the date the forward-looking statements are made. In addition, our past results of operations are not necessarily indicative of future performance. UNAUDITED CONSOLIDATED BALANCE SHEET INFORMATION (In thousands) December 31, 2025 September 30, 2025 June 30, 2025 March 31, 2025 December 31, 2024* ASSETS Cash and due from banks $ 25,179 $ 23,940 $ 20,888 $ 18,384 $ 21,351 Interest-bearing deposits at other financial institutions 1,276 1,315 864 735 1,711 Federal funds sold 136,301 102,039 111,532 183,521 184,646 Total cash and cash equivalents 162,756 127,294 133,284 202,640 207,708 Investment securities available for sale (AFS), at fair value 56,454 58,338 56,138 55,935 55,747 Investment securities held to maturity (HTM), at amortized cost, net of allowance for credit losses of $0 for all periods 15,298 14,293 14,846 15,657 16,078 Restricted securities, at amortized cost 7,005 7,005 7,005 7,005 6,873 Loans, net of allowance for credit losses of $19,308, $18,831, $19,057, $19,460, and $19,450, respectively 1,841,833 1,788,243 1,767,432 1,811,789 1,810,556 Premises and equipment, net 13,530 13,212 13,344 13,020 13,287 Other real estate owned, net 1,697 — — — — Property held for sale, at fair value 2,806 3,225 3,225 — — Accrued interest and other receivables 14,518 13,622 15,023 9,607 11,311 Bank owned life insurance 40,752 40,433 40,117 39,809 39,507 Other assets 56,020 59,124 64,367 67,383 67,031 Total Assets $ 2,212,669 $ 2,124,789 $ 2,114,781 $ 2,222,845 $ 2,228,098 LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities: Non-interest bearing deposits $ 378,694 $ 324,717 $ 330,045 $ 345,319 $ 324,307 Interest-bearing demand deposits 119,407 123,231 124,090 106,033 139,780 Savings and NOW deposits 121,905 125,214 116,069 124,049 64,337 Money market deposits 499,334 458,946 463,904 511,925 560,082 Time deposits 779,844 778,727 764,439 820,999 819,288 Total deposits 1,899,184 1,810,835 1,798,547 1,908,325 1,907,794 Subordinated debt, net 69,936 69,837 71,238 72,138 73,039 Other liabilities 24,958 25,754 31,526 32,764 39,274 Total Liabilities 1,994,078 1,906,426 1,901,311 2,013,227 2,020,107 Stockholders' Equity: Preferred stock 27,263 27,263 27,263 27,263 27,263 Common stock 29,008 29,833 29,825 29,810 29,466 Capital surplus 66,531 68,895 68,261 67,612 67,823 Retained earnings 101,557 98,793 95,585 92,305 91,150 Accumulated other comprehensive loss (5,768) (6,421) (7,464) (7,372) (7,711) Total Stockholders' Equity 218,591 218,363 213,470 209,618 207,991 Total Liabilities and Stockholders' Equity $ 2,212,669 $ 2,124,789 $ 2,114,781 $ 2,222,845 $ 2,228,098 *Derived from audited financial statements UNAUDITED CONSOLIDATED STATEMENTS OF INCOME (LOSS) INFORMATION (In thousands, except share and per share data) Year-to-Date Three Months Ended December 31, 2025 December 31, 2024* December 31, 2025 September 30, 2025 June 30, 2025 March 31, 2025 December 31, 2024 INTEREST INCOME: Interest and fees on loans $ 124,211 $ 125,177 $ 29,969 $ 30,688 $ 32,443 $ 31,111 $ 31,323 Interest on investment securities Taxable securities 1,707 1,693 421 435 431 420 431 Tax-exempt securities 1,076 1,093 276 270 267 263 262 Interest on interest-bearing deposits at other financial institutions 54 41 10 11 10 22 15 Interest on federal funds sold 4,540 6,611 1,198 1,060 1,135 1,147 3,088 Total interest income 131,588 134,615 31,874 32,464 34,286 32,963 35,119 INTEREST EXPENSE: Interest on interest-bearing demand deposits 4,187 8,661 1,064 1,071 1,004 1,048 2,612 Interest on savings and NOW deposits 1,469 754 390 467 391 221 201 Interest on money market deposits 18,852 21,386 4,246 4,623 4,707 5,276 5,475 Interest on time deposits 34,239 37,364 8,244 8,369 8,595 9,031 10,003 Interest on federal funds purchased 93 575 — 28 — 65 — Interest on Federal Home Loan Bank advances — 46 — — — — — Interest on subordinated debt 3,203 3,255 788 804 799 812 787 Total interest expense 62,043 72,041 14,732 15,362 15,496 16,453 19,078 Net interest income 69,545 62,574 17,142 17,102 18,790 16,510 16,041 Provision for credit losses (70) 6,763 328 144 (543) — 3,407 Net interest income after provision for credit losses 69,615 55,811 16,814 16,958 19,333 16,510 12,634 NON-INTEREST INCOME: Deposit account service charges 2,184 1,996 559 557 538 530 481 Bank owned life insurance income 1,245 1,189 319 316 308 302 304 Gain on retirement of subordinated debt 273 — — 145 68 60 — Gain on equity securities 103 — — — 103 — — Net loss on securities called or matured — (48) — — — — — Other non-interest income 222 115 22 104 49 47 22 Total non-interest income 4,027 3,252 900 1,122 1,066 939 807 NON-INTEREST EXPENSES: Salaries and employee benefits 31,587 30,475 7,557 7,366 8,279 8,385 8,253 Furniture and equipment expenses 3,840 3,636 884 799 1,141 1,016 830 Advertising and marketing 2,051 2,199 469 571 530 481 600 Occupancy expenses 1,407 1,614 293 400 318 396 358 Outside services 3,776 3,627 688 625 1,290 1,173 1,168 Administrative expenses 996 929 238 259 270 229 243 Computer software intangible impairment — 19,721 — — — — 19,721 Other operating expenses 10,894 10,766 2,696 2,647 2,917 2,634 3,258 Total non-interest expenses 54,551 72,967 12,825 12,667 14,745 14,314 34,431 Income (loss) before income tax expense (benefit) 19,091 (13,904) 4,889 5,413 5,654 3,135 (20,990) Income tax expense (benefit) 3,478 (3,924) 836 896 1,064 682 (4,823) Net income (loss) 15,613 (9,980) 4,053 4,517 4,590 2,453 (16,167) Preferred stock dividends 2,156 2,156 539 539 539 539 539 Net income (loss) available to common shareholders $ 13,457 $ (12,136) $ 3,514 $ 3,978 $ 4,051 $ 1,914 $ (16,706) Earnings (loss) per common share, basic and diluted $ 1.76 $ (1.60) $ 0.46 $ 0.52 $ 0.53 $ 0.25 $ (2.20) Weighted average number of common shares, basic and diluted 7,652,504 7,606,391 7,564,723 7,704,639 7,704,677 7,636,191 7,603,318 *Derived from audited financial statements UNAUDITED LOAN, DEPOSIT AND BORROWING DETAIL (In thousands) December 31, 2025 September 30, 2025 December 31, 2024 Percentage Change $ Amount % of Total $ Amount % of Total $ Amount % of Total Last 3 Mos Last 12 Mos LOANS: Construction and land development loans $ 300,666 16.1 % $ 312,318 17.2 % $ 391,253 21.3 % -3.7 % -23.2 % Residential real estate loans 441,578 23.7 % 411,592 22.7 % 438,745 23.9 % 7.3 % 0.6 % Commercial real estate loans 1,014,933 54.4 % 981,091 54.2 % 898,204 48.9 % 3.4 % 13.0 % Commercial and industrial loans 106,990 5.7 % 105,217 5.8 % 105,212 5.7 % 1.7 % 1.7 % Consumer loans 1,148 0.1 % 1,204 0.1 % 1,574 0.2 % -4.7 % -27.1 % Total Gross Loans $ 1,865,315 100.0 % $ 1,811,422 100.0 % $ 1,834,988 100.0 % 3.0 % 1.7 % Less: Allowance for credit losses (19,308) (18,831) (19,450) Net deferred loan fees (4,174) (4,348) (4,982) Net Loans $ 1,841,833 $ 1,788,243 $ 1,810,556 DEPOSITS: Non-interest bearing deposits $ 378,694 20.0 % $ 324,717 17.9 % $ 324,307 17.0 % 16.6 % 16.8 % Interest-bearing deposits: Demand deposits 119,407 6.3 % 123,231 6.8 % 139,780 7.3 % -3.1 % -14.6 % Savings and NOW deposits 121,905 6.4 % 125,214 6.9 % 64,337 3.4 % -2.6 % 89.5 % Money market deposits 499,334 26.3 % 458,946 25.3 % 560,082 29.4 % 8.8 % -10.8 % Time deposit $250,000 or more 490,594 25.8 % 501,332 27.8 % 535,676 28.0 % -2.1 % -8.4 % Time deposit less than $250,000 289,250 15.2 % 277,395 15.3 % 283,612 14.9 % 4.3 % 2.0 % Total Deposits $ 1,899,184 100.0 % $ 1,810,835 100.0 % $ 1,907,794 100.0 % 4.9 % -0.5 % BORROWINGS: Subordinated debt, net $ 69,936 100.0 % $ 69,837 100.0 % $ 73,039 100.0 % 0.1 % -4.2 % Total Borrowings $ 69,936 100.0 % $ 69,837 100.0 % $ 73,039 100.0 % 0.1 % -4.2 % Total Deposits and Borrowings $ 1,969,120 $ 1,880,672 $ 1,980,833 4.7 % -0.6 % Core customer funding sources(1) $ 1,400,678 71.1 % $ 1,289,952 68.6 % $ 1,439,657 72.7 % 8.6 % -2.7 % Brokered and listing service sources (2) 498,506 25.3 % 520,883 27.7 % 468,137 23.6 % -4.3 % 6.5 % Subordinated debt, net (3) 69,936 3.6 % 69,837 3.7 % 73,039 3.7 % 0.1 % -4.2 % Total Funding Sources $ 1,969,120 100.0 % $ 1,880,672 100.0 % $ 1,980,833 100.0 % 4.7 % -0.6 % (1) Includes ICS, CDARS, and reciprocal deposits maintained by customers, which represent sweep accounts tied to customer operating accounts. (2) Consists of certificates of deposit (CD) through multiple listing services and multiple brokered deposit services, as well as ICS and CDARS one-way certificates of deposit and regional money market accounts. Excludes $145.2 million in core deposits placed in reciprocal networks for FDIC insurance coverage that will be classified as brokered deposits on the call report in pursuant to rule 12 CFR 337.6(e) as of December 31, 2025. (3) Subordinated debt obligation qualifies as Tier 2 capital at the holding company and Tier 1 capital at the Bank. UNAUDITED AVERAGE BALANCE SHEETS, INTEREST AND RATES (In thousands) For the three months ended December 31, 2025 For the three months ended December 31, 2024 Average Balance Interest Income/ Expense (3)(4) Average Yields/ Rate (annualized) (3)(4) Average Balance Interest Income/ Expense (3)(4) Average Yields/ Rate (annualized) (3)(4) ASSETS: Interest-earning assets: Loans(1)(2) $ 1,819,614 $ 29,969 6.53 % $ 1,808,894 $ 31,323 6.87 % Securities: Taxable 50,844 421 3.29 % 53,566 431 3.19 % Tax-exempt 35,631 349 3.89 % 35,512 332 3.71 % Interest-bearing deposits at other financial institutions 1,044 10 3.80 % 1,272 15 4.68 % Federal funds sold 127,376 1,198 3.73 % 262,323 3,088 4.67 % Total interest-earning assets $ 2,034,509 $ 31,947 6.23 % $ 2,161,567 $ 35,189 6.46 % Other assets 123,757 129,077 Total assets $ 2,158,266 $ 2,290,644 Liabilities and Stockholders' Equity: Interest-bearing liabilities: Interest-bearing demand deposits $ 125,673 $ 1,064 3.36 % $ 231,496 $ 2,612 4.48 % Savings and NOW deposits 121,401 390 1.27 % 64,112 201 1.24 % Money market deposits 467,891 4,246 3.60 % 514,235 5,475 4.22 % Time deposits 786,801 8,244 4.16 % 809,924 10,003 4.90 % Total interest-bearing deposits $ 1,501,766 $ 13,944 3.68 % $ 1,619,767 $ 18,291 4.48 % Federal funds purchased 2 — — 2 — — Subordinated debt, net 69,898 788 4.47 % 73,001 787 4.28 % Total interest-bearing liabilities $ 1,571,666 $ 14,732 3.72 % $ 1,692,770 $ 19,078 4.47 % Demand deposits and other liabilities 368,502 370,332 Total liabilities $ 1,940,168 $ 2,063,102 Stockholders' Equity 218,098 227,542 Total Liabilities and Stockholders' Equity $ 2,158,266 $ 2,290,644 Interest Rate Spread 2.51 % 1.99 % Net Interest Income $ 17,215 $ 16,111 Net Interest Margin 3.36 % 2.96 % (1) Includes loans classified as non-accrual (2) Total loan interest income includes amortization of deferred loan fees, net of deferred loan costs (3) Income and yields for all periods presented are reported on a tax-equivalent basis using the federal statutory rate of 21% (4) Refer to "Unaudited Reconciliation of Certain Non-GAAP Financial Measures" for reconciliation of non-GAAP measures UNAUDITED AVERAGE BALANCE SHEETS, INTEREST AND RATES (In thousands) For the year ended December 31, 2025 For the year ended December 31, 2024 Average Balance Interest Income/ Expense (3)(4) Average Yields/ Rate (annualized) (3)(4) Average Balance Interest Income/ Expense (3)(4) Average Yields/ Rate (annualized) (3)(4) ASSETS: Interest-earning assets: Loans(1)(2) $ 1,820,481 $ 124,211 6.82 % $ 1,782,061 $ 125,177 7.02 % Securities: Taxable 52,401 1,707 3.26 % 54,935 1,693 3.08 % Tax-exempt 35,382 1,362 3.85 % 36,379 1,384 3.80 % Interest-bearing deposits at other financial institutions 1,216 54 4.44 % 815 41 5.03 % Federal funds sold 111,144 4,540 4.08 % 136,258 6,611 4.85 % Total interest-earning assets $ 2,020,624 $ 131,874 6.53 % $ 2,010,448 $ 134,906 6.71 % Other assets 120,810 126,138 Total assets $ 2,141,434 $ 2,136,586 Liabilities and Stockholders' Equity: Interest-bearing liabilities: Interest-bearing demand deposits $ 117,493 $ 4,187 3.56 % $ 181,109 $ 8,661 4.78 % Savings and NOW deposits 107,151 1,469 1.37 % 54,385 754 1.39 % Money market deposit 486,945 18,852 3.87 % 464,400 21,386 4.61 % Time deposits 785,378 34,239 4.36 % 748,938 37,364 4.99 % Total interest-bearing deposits $ 1,496,967 $ 58,747 3.92 % $ 1,448,832 $ 68,165 4.70 % Federal funds purchased 1,973 93 4.71 % 9,941 575 5.78 % FHLB advances — — — 820 46 5.61 % Subordinated debt, net 71,223 3,203 4.50 % 72,852 3,255 4.47 % Total interest-bearing liabilities $ 1,570,163 $ 62,043 3.95 % $ 1,532,445 $ 72,041 4.70 % Demand deposits and other liabilities 358,146 379,510 Total liabilities $ 1,928,309 $ 1,911,955 Stockholders' Equity 213,114 224,631 Total Liabilities and Stockholders' Equity $ 2,141,423 $ 2,136,586 Interest Rate Spread 2.58 % 2.01 % Net Interest Income $ 69,831 $ 62,865 Net Interest Margin 3.46 % 3.13 % (1) Includes loans classified as non-accrual (2) Total loan interest income includes amortization of deferred loan fees, net of deferred loan costs (3) Income and yields for all periods presented are reported on a tax-equivalent basis using the federal statutory rate of 21% (4) Refer to "Unaudited Reconciliation of Certain Non-GAAP Financial Measures" for reconciliation of non-GAAP measures UNAUDITED SUMMARY FINANCIAL DATA (Dollars in thousands except per share data) At or For the Three Months Ended At or For the Year Ended December 31, December 31, 2025 2024 2025 2024 Per share Data and Shares Outstanding Earnings (loss) per common share (basic and diluted) $ 0.46 $ (2.20) $ 1.76 $ (1.60) Book value per common share $ 25.52 $ 23.77 $ 25.52 $ 23.77 Tangible book value per common share(2) $ 25.52 $ 23.77 $ 25.52 $ 23.77 Weighted average common shares (basic and diluted) 7,564,723 7,603,318 7,652,504 7,606,391 Common shares outstanding at end of period 7,496,571 7,603,765 7,496,571 7,603,765 Performance Ratios Return on average assets (annualized) 0.75 % (2.80) % 0.73 % (0.47) % Return on average equity (annualized) 7.37 % (28.19) % 7.33 % (4.44) % Return on average common equity (annualized) 7.31 % (29.13) % 7.24 % (6.15) % Yield on earning assets (FTE) (2) (annualized) 6.23 % 6.46 % 6.53 % 6.71 % Cost of interest-bearing liabilities (annualized) 3.72 % 4.47 % 3.95 % 4.70 % Net interest spread (FTE)(2) (annualized) 2.51 % 1.99 % 2.58 % 2.01 % Net interest margin (FTE)(2) (annualized) 3.36 % 2.96 % 3.46 % 3.13 % Non-interest income as a percentage of average assets (annualized) 0.17 % 0.14 % 0.19 % 0.15 % Non-interest expense to average assets (annualized) 2.36 % 5.96 % 2.55 % 3.42 % Efficiency ratio(3) 71.08 % 204.36 % 74.15 % 110.85 % Allowance for Credit Losses Allowance for credit losses (ACL) Beginning balance, ACL - loans $ 18,831 $ 18,327 $ 19,450 $ 16,506 Add: recoveries 2 9 834 28 Less: charge-offs — (2,151) (858) (4,569) Add: provision for credit losses - loans 475 3,265 (118) 7,485 Ending balance, ACL - loans $ 19,308 $ 19,450 $ 19,308 $ 19,450 Beginning balance, reserve for unfunded commitment (RUC) $ 482 $ 145 $ 287 $ 1,009 Provision for unfunded commitments, net (147) 142 48 (722) Ending balance, RUC $ 335 $ 287 $ 335 $ 287 Total allowance for credit losses $ 19,643 $ 19,737 $ 19,643 $ 19,737 Allowance for credit losses on loans to total gross loans 1.04 % 1.06 % 1.04 % 1.06 % Allowance for credit losses on loans to non-performing loans 58.19 % 89.84 % 58.19 % 89.84 % Net charge-offs to average gross loans (annualized) 0.00 % 0.46 % 0.00 % 0.25 % Concentration Ratios Commercial real estate loans to total capital (4) 354.85 % 393.79 % 354.85 % 393.79 % Construction loans to total capital (5) 98.06 % 131.92 % 98.06 % 131.92 % Past due and Non-performing Assets Loans 30-89 days past due and accruing to total gross loans 0.98 % 0.00 % 0.98 % 0.00 % Loans 90 days past due and accruing to total gross loans 0.00 % 0.00 % 0.00 % 0.00 % Non-accrual loans to total gross loans 1.69 % 1.18 % 1.69 % 1.18 % Other real estate owned, net $ 1,697 $ — $ 1,697 $ — Non-performing loans $ 31,482 $ 21,650 $ 31,482 $ 21,650 Non-performing assets to total assets 1.50 % 0.97 % 1.50 % 0.97 % Regulatory Capital Ratios (Bank only) (1) Total risk-based capital ratio 16.08 % 15.69 % 16.08 % 15.69 % Tier 1 risk-based capital ratio 15.05 % 14.64 % 15.05 % 14.64 % Leverage ratio 13.28 % 12.08 % 13.28 % 12.08 % Common equity tier 1 ratio 15.05 % 14.64 % 15.05 % 14.64 % Other information Common shares closing stock price $ 20.36 $ 18.10 $ 20.36 $ 18.10 Tangible equity / tangible assets 9.88 % 9.33 % 9.88 % 9.33 % Average tangible equity / average tangible assets(2) 10.11 % 9.21 % 9.95 % 9.80 % Number of full time equivalent employees 174 204 174 204 Number of full service branch offices 6 6 6 6 (1) Regulatory capital ratios as of December 31, 2025 are preliminary (2) Refer to "Unaudited Reconciliation of Certain Non-GAAP Financial Measures" for reconciliation of non-GAAP measures (3) Efficiency ratio is calculated as non-interest expense as a percentage of net interest income and non-interest income (4) Commercial real estate includes only non-owner occupied, multifamily, and construction loans as a percentage of Bank capital (5) Construction loans as a percentage of Bank capital Unaudited Reconciliation of Certain Non-GAAP Financial Measures (Dollars In thousands) For the three months ended December 31, For the year ended December 31, 2025 2024 2025 2024 Net interest margin (FTE) Net interest income (GAAP) $ 17,142 $ 16,041 $ 69,545 $ 62,574 FTE adjustment on tax-exempt securities 73 70 286 291 Net interest income (FTE) (non-GAAP) 17,215 16,111 69,831 62,865 Average interest-earning assets 2,034,509 2,161,567 2,020,624 2,010,448 Net interest margin (GAAP) 3.34 % 2.94 % 3.44 % 3.11 % Net interest margin (FTE) (non-GAAP) 3.36 % 2.96 % 3.46 % 3.13 % For the three months ended December 31, For the year ended December 31, 2025 2024 2025 2024 Yield on earning assets (FTE) Total interest income (GAAP) $ 31,874 $ 35,119 $ 131,588 $ 134,615 FTE adjustment on tax-exempt securities 73 70 286 291 Total interest income (FTE) (non-GAAP) 31,947 35,189 131,874 134,906 Average interest-earning assets 2,034,509 2,161,567 2,020,624 2,010,448 Yield on earning assets (GAAP) 6.22 % 6.45 % 6.51 % 6.70 % Yield on earning assets (FTE) (non-GAAP) 6.23 % 6.46 % 6.53 % 6.71 % For the three months ended December 31, For the year ended December 31, 2025 2024 2025 2024 Net interest spread (FTE) Yield on earning assets (GAAP) 6.22 % 6.45 % 6.51 % 6.70 % Yield on earning assets (FTE) (non-GAAP) 6.23 % 6.46 % 6.53 % 6.71 % Yield on interest-bearing liabilities (GAAP) 3.72 % 4.47 % 3.95 % 4.70 % Net interest spread (GAAP) 2.50 % 1.98 % 2.56 % 2.00 % Net interest spread (FTE) (non-GAAP) 2.51 % 1.99 % 2.58 % 2.01 % For the three months ended December 31, For the year ended December 31, 2025 2024 2025 2024 Average tangible stockholders' equity Total average stockholders' equity (GAAP) $ 218,098 $ 227,542 $ 213,114 $ 224,631 Less: average intangible assets — (18,327) — (16,989) Total average tangible stockholders' equity (non-GAAP) 218,098 209,215 213,114 207,642 For the three months ended December 31, For the year ended December 31, 2025 2024 2025 2024 Average tangible assets Total average assets (GAAP) $ 2,158,266 $ 2,290,644 $ 2,141,434 $ 2,136,586 Less: average intangible assets — (18,327) — (16,989) Total average tangible assets (non-GAAP) 2,158,266 2,272,317 2,141,434 2,119,597 Contact: Billy Freesmeier Chief of Staff (703) 481-4579 View original content to download multimedia:https://www.prnewswire.com/news-releases/mainstreet-bancshares-inc-reports-a-profitable-2025-and-remains-focused-on-serving-the-washington-dc-metropolitan-community-302669234.html SOURCE MainStreet Bancshares, Inc.