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2025 Financial HighlightsJanuary 26, 2026
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Forward-looking statements and additional informationStatements in this presentation which are not historical are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. These forward-looking statements may include discussions of the strategic plans and objectives or anticipated future performance and results of MainStreet Bancshares, Inc. or MainStreet Bank (the "Company"). The information contained in this presentation should be read in conjunction with the Company's most recent Form 10-K and all subsequent Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, each of which is available on the Securities and Exchange Commission’s (“SEC”) website (sec.gov). Investors are cautioned that forward-looking statements, which are not historical fact, involve risks, assumptions and uncertainties that change over time, including those detailed in Form 10-K under the section, “Risk Factors”. As such, actual results could differ materially from those expressed or implied by forward-looking statements made in this presentation. Management believes that the expectations in these forward-looking statements are based upon reasonable assumptions within the bounds of management’s current knowledge of the Company's business and operations. The Company disclaims any responsibility to update these forward-looking statements to reflect events or circumstances after the date of this presentation. The accounting and reporting policies of the Company conform to U.S. Generally Accepted Accounting Principles (GAAP) and prevailing practices in the banking industry. However, certain non-GAAP measures are used by management to supplement the evaluation of the Company’s performance. 2
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3 Major universities ●Georgetown●GW ●American●Howard●George Mason ●Gallaudet ●Catholic ●UMUC ●Marymount Federal hub ●Defense contracting●CACI●Lockheed Martin●FTI●SAIC Resident fortune 500 ●Under Armour●Amazon●Google●Boeing ●Marriott●Raytheon Other notable ●Historic trend of low unemployment compared to overall U.S. - even during downturns.●Highest median income.1●70% of U.S. internet traffic 2●Tourism, hospitality, conventions, sports and entertainment.●NBA, NFL, MLS, NHL1. Median Household Income, Loudoun County #1 and Fairfax County #4 (FRED)2. Per DigitalTech.com Excellent marketFor a community business bank
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4 The DC Metropolitan areaIs vibrant with opportunity Good things continue to happen in the DC Market $125,027Median household income1 $809,787Average home listing price2 38Median days on the market2 685KGovernment employees in the DMV3 1 Federal Reserve Economic Data – Year End 2023 – Fairfax County, Falls Church, DC, MD –Average2 Federal Reserve Economic Data – Jan. 2026 DC Metro (CBSA)3 Federal Reserve Economic Data – Nov. 2025 DC Metro (MSA)
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5 $45$83$106$146$186$236$240$283$272$277$345$487$576$803$1,101$1,277 $1,643$1,647$1,926$2,035$2,228$2,213 2004200520062007200820092010201120122013201420152016201720182019202020212022202320242025 March 2022$44MSub-Debt Offering May 2004$12.5M Private Placement of Common Stock August 2005$12.6M Private Placement of Common Stock &Began trading on OTC Market Dec 2014$12.8M Private Placement of Common Stock July 2016Formed Holding Company / Began Trading on OTCQX January 2017$15M Sub-DebtOfferingOctober 2017$18.4M Private Placement of Common Stock August 2018$45M Private Placement of Common Stock April 2019Became SEC Registrant and Began Trading on NASDAQ Capital Market April 2021$30MSub-Debt OfferingSept. 2020$28.75M Depository Share Offering (Assets $ millions) Strategic balance sheet management
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6 ●Headquarters: Fairfax, VA●Full-time employees: 174●Assets per employee: $12,716M●Holding company established: 2016 Rooted in communitybranch-lite structureEst.2004 Middleburg Branch scheduled to open February 2026 $2.2BTotal Assets 6Branches
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7 MNSBClose common stock price$20.36Price / tangible book value80%Common shares7,496,571Market capitalization$153 millionTangible book value$25.52 MNSBPClose preferred stock price$24.75 MainStreet Bancshares, Inc. 209K Number of shares repurchased at a 28% accretion to tangible book value.
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8 20254Q253Q252Q251Q25EPS $1.76$0.46$0.52$0.53$0.25ROAA2 0.73%0.75%0.85%0.86%0.46%ROATCE2 7.24%7.31%8.40%8.84%4.29%Net interest margin1,2,33.46%3.36%3.42%3.75%3.30% Net loans ($ millions)$1,842$1,842$1,788$1,767$1,812Total deposits ($ millions)$1,899$1,899$1,811$1,799$1,908Total assets ($ millions)$2,213$2,213$2,125$2,115$2,223ACL / gross loans4 1.04%1.04%1.04%1.07%1.06%NCOs / avg loans2 0.00%0.00%0.04%(0.03%)0.00%Total equit y/tangible assets 39.88%9.88%10.28%10.09%9.43% ProfitabilityBalanceSheet 1 Tax-equivalent yield 2 annualized 3 non-GAAP 4 ACL on loans excludes unfunded commitments 2025 financial summary
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9 Sound liquidity management Metric4Q253Q252Q251Q25Liquidity coverage ratio (LCR)1106%147%108%225%Loan / Deposit Ratio98%100%99%96%FDIC insured / total deposits 272%75%74%74% High quality liquid assets 3 $217$196$202$274Secured line available balance$587$527$551$555Unsecured line of credit$144$144$144$144Total available funding sources$731$671$695$699 1 LCR = High quality liquid assets / Total net 30-day cash outflow. Target > 100% 2 Bank level metric3 High quality liquid assets = cash & due from banks, fed funds sold, unencumbered securities, and cash surrender value of bank-owned life insurance
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10 3.47%2.75%2.85%2.95%3.05%3.15%3.25%3.35%3.45%3.55%3.65%3.75% 2Q243Q244Q241Q252Q253Q254Q25 Core Net Interest MarginReported Net Interest Margin Core and Reported net interest margin(s) are goodQuarterly net interest margin 1 1 Tax-equivalent yield 2025 Core NIM
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11 We are enhancing our margins through competitive positioning and by emphasizing relationships that keep our deposit base stable and cost-effective.40%39%39%39%39% 17%18%19%18%20% 43%43%42%43%41% 4Q241Q252Q253Q254Q25 Interest-bearing DDAsNon-interest bearing DDAsTime Competitive Deposit Market Cost of Deposits3.71%3.45%3.24%3.20%3.00%Total Deposits ($000)$1,907,794$1,908,325$1,798,547$1,810,835$1,899,184
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12 The team continues to focus on core revenue generation and expense control 2026 first half expectations•We anticipate that the first and second quarter expense run rate will remain consistent with the Q4 2025 run rate.•We anticipate a 3% to 4% loan growth through Q2 of 2026.
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13 Active share buyback program Beginning buyback Availability$10,000,000Shares Repurchased209,000Share Repurchase Price$18.54Total Repurchase Price$3,875,000Year-end buyback Availability$6,125,000 28% Accretion to tangible book value from repurchase
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14 Diversified loan portfolio 85% of construction loans have an interest reserve deposit with strategic growth in owner-occupied CRE Residential Real Estate11% Construction21% C&I6%Multi-Family13% Owner-Occupied CRE19% Non-Owner Occupied CRE30%$1.8B Residential Real Estate12% Construction16% C&I6%Multi-Family12%Owner-Occupied CRE24% Non-Owner Occupied CRE30% $1.9B 20242025 394%CRE Concentration355%CRE ConcentrationSubstantial reduction in CRE concentration while growing total loans
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15 Government contractors self-fundWith an appreciable surplus $93.6millionAverage non-interest bearing deposits $12.3MTotal outstanding 30 asset-based lines of credit $67.3MTotal committed3 term loans $1.4MTotal outstanding
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16 Loan pricing positioned for stable or falling rates 67%Rate resets beyond 6 months1 33%Rate resets within 6 months2 60% with a weighted average floor rate of 5.84% 1 Loans include all fixed-rate and floating loans with a rate repricing date more than 6-months from quarter-end2 Loans are loans that can reprice immediately or have a rate repricing date within 6-months from quarter-end December 31, 2025 total loans $1.9B
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17 The average new loan size is indicative of well-distributed credit risk management process Good loan metrics $1,403$1,397$2,330$2,045 $3,323 $2,309$1,911$1,388 $21,354$23,684$28,430$34,104 $42,986$46,810$44,488$46,252 20182019202020212022202320242025 Average New Loan SizeLegal Lending Limit Average loan size excludes consumer loans
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18 Earning asset stress-test shows strong capital position 14.6%14.8%15.4%15.2%15.1% 12.5%12.4%12.8%12.6%11.8% 7.0% 4Q241Q252Q253Q254Q25 Pre stress CET1 / RBCPost stress CET1 / RBCRegulatory threshold Stress Loss Estimates ($000)$45,104$44,183$46,790$48,820$62,933 Well-capitalized threshold for the common equity tier 1 (CET1) risk-based capital ratio is 7%. Pre- and post-stress capital ratios
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19 Classified loansNon-accrual loansOREORelationships871Balances$50.1 million$31.5 million$1.6 millionAs a % of Gross Loans2.69%1.69%0.09% The team is laser-focused on minimizing exposure on classified and work-out loans
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20 Financial highlightsYear-End Financials Quarter-End Financials In $000 unless otherwise noted20212022202320242025Q4’24Q1’25Q2’25Q3’25Q4’25Interest Income64,19983,845124,421134,615131,58735,11932,96334,28632,46431,874Interest Expense10,66313,83647,67972,04162,04319,07816,45315,49615,36214,732Net Interest Income53,53670,01076,74262,57469,54516,04116,51018,79017,10217,142Noninterest Income6,1104,8343,3403,2524,0278079391,0661,122900Realized Gains (Losses) on Securities640-481030010300Total Revenue59,64574,84380,08265,82673,57016,84817,45019,85618,22418,042Noninterest Expense32,86539,05745,61672,96754,55134,43114,31414,74512,66712,825Pre-Tax Pre-Provision Income (Loss) (Non-GAAP) 26,78235,78734,466-7,14119,019-17,5833,1355,1115,5575,217Provision for (recovery of) Credit Losses-1,1752,3981,6426,763-703,4070-543144328Net Income (Loss) before Taxes27,95633,38932,824-13,90419,091-20,9903,1355,6545,4134,889Provision for Taxes (benefit)5,7856,7146,239-3,9243,478-4,8236821,064896836Net Income (Loss) (GAAP)22,17126,67426,585-9,98015,613-16,1672,4534,5904,5174,053Net Income (Loss) to Common Shareholders20,01524,51824,429-12,13613,457-16,7061,9144,0513,9783,514Less: Realized Gains (Loss)640-483760601711450Plus: Nonrecurring Expenses, net00021,04145620,447045600Total Core Adjustments Pre-Tax 64021,089-8020,44760-2851450Total Core Adjustments Post-Tax53016,278-6315,81447-2251150Core Net Income (Loss) (Non-GAAP) 22,16626,67126,5856,29815,676-3532,4064,8154,4024,053Core Net Income (Loss) to Common Shareholders (Non-GAAP) 20,02024,52124,4294,14213,520-8921,8674,2763,8633,514Average Assets1,685,1401,744,0291,931,8052,136,5862,141,4342,290,6442,155,4612,132,6662,119,4942,158,266Average Equity179,123190,839209,921224,631213,114227,542208,093211,081215,039218,098Average Tangible Common Equity151,327158,273170,662180,381185,815181,551180,830183,819187,776190,836
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21 Year-End Financials Quarter-End Financials In $000 unless otherwise noted20212022202320242025Q4’24Q1’25Q2’25Q3’25Q4’25Performance Metrics (%)ROAA 1.321.531.38-0.470.73-2.800.460.860.850.75ROAE 12.3813.9812.66-4.447.33-28.194.788.728.337.37ROATCE to Common Shareholders13.2315.4914.31-6.738.40-36.514.2910.028.408.43Core ROAA (Non-GAAP)1.321.531.380.297.24-0.060.450.840.827.31Core ROAE (Non-GAAP)12.3813.9812.662.800.73-0.624.699.168.120.75Core ROATCE to Common Shareholders (Non-GAAP) 13.2315.4914.312.307.36-1.954.199.338.167.37Net Interest Margin (%)3.344.214.133.113.442.943.283.743.403.34Net Interest Margin - Tax Equivalent Yield (Non-GAAP) (%)3.354.234.153.133.462.963.303.753.423.36Non-Recurring Adjustments001331,904-1,430-24104128-595-604Core Net Interest Margin (Non-GAAP) (%)3.354.234.123.223.532.963.323.493.543.47Common Equity161,525171,019194,254180,728191,328180,728182,355186,207191,100191,328Less: Total Intangible Assets2,4939,14914,6570000000Tangible Common Equity (Non-GAAP)159,032161,870179,597180,728191,328180,728182,355186,207191,100191,328Total Assets1,647,4021,925,7512,035,4322,228,0982,212,6692,228,0982,222,8452,114,7812,124,7892,212,669Less: Total Intangible Assets2,4939,14914,6570000000Tangible Assets (Non-GAAP)1,644,9091,916,6022,020,7752,228,0982,212,6692,228,0982,222,8452,114,7812,124,7892,212,669Total Equity / Tangible Assets (%) (Non-GAAP) 11.4810.3510.969.339.889.339.4310.0910.289.88Common Shares Outstanding (actual)7,595,7817,442,7437,527,4157,603,7657,496,5717,603,7657,703,1977,704,0377,703,5797,496,571Tangible Book Value per Common Share ($) (Non-GAAP)20.9421.7523.8623.7725.5223.7723.6724.1724.8125.52 Financial highlights continued
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22 ACLAllowance for Credit LossesLTMLast-Twelve-MonthsAOCIAccumulated Other Comprehensive Income $MMMillions of DollarsCET1Common Equity Tier-1 NCOsNet Charge-OffsCET1-RBCCommon Equity Tier-1 Risk-Based Capital ROAAReturn on Average Assets CRECommercial Real EstateROAEReturn on Average EquityEAREarnings-at-Risk: simulation model used to forecast changes to net interest income and reflects a short-term measure of the effects of interest rate risk exposure ROATCEReturn on Average Tangible Common Equity EPSEarnings Per ShareTBVTangible Book ValueGAAPGenerally Accepted Accounting PrinciplesYTDYear-to-DateLCRLiquidity Coverage Ratio($000)Thousands of Dollars Definitions