MainStreet Bancshares, Inc. · NASDAQ:MNSB

MainStreet Bancshares — Q1 2026 Earnings Presentation

23 slides from MainStreet Bancshares's earnings presentation, Apr 20, 2026

  1. Slide 1: 2026 Q1 Financial Highlights

    April 20, 2026 2026 Q1 Financial Highlights

  2. Slide 2: Forward-looking statements and additional information

    Forward-looking statements and additional information Statements in this presentation which are not As such, actual results could differ materially from historical are “forward-looking statements” within the those expressed or implied by forward-looking meaning of Section 27A of the Securities Act o

  3. Slide 3: Excellent market driven by diverse businesses

    Excellent market driven by diverse businesses Major universities Federal hub ● Georgetown ● Defense contracting ● GW ● CACI ● American ● Lockheed Martin ● Howard ● FTI ● George Mason ● SAIC ● Gallaudet ● Catholic ● UMUC ● Marymount Resident Fortune 500 Other notable ● Under Armour ● Historic trend o

  4. Slide 4: The DC Metropolitan area is vibrant with opportunity

    The DC Metropolitan area is vibrant with opportunity $135,089 $830,984 Median household Average Good things income1 listing price2 continue to happen in the DC Market 30 684K Median days on the Government employees in market2 the DMV3 1 Federal Reserve Economic Data – Year End 2024 – Fairfax (VA), L

  5. Slide 5: Strategic balance sheet management

    Strategic balance sheet management March 2022 $44M April 2021 Sub-Debt Offering Sept. 2020 $30M Sub-Debt $28.75M Offering Depository $2,228 $2,213 $2,223 April 2019 Share Offering Became SEC $2,035 Registrant and $1,926 Began Trading August 2018 on NASDAQ Capital Market $1,647 January 2017 $45M Priv

  6. Slide 6: Rooted in community branch-lite structure

    Rooted in community branch-lite structure Est. 2004 ● Headquarters: Fairfax, VA ● Full-time employees: 168 ● Assets per employee: $13,234M $2.2B ● Holding company established: 2016 Total Assets 7 Branches Operations Center located at Shaw Road location. 6

  7. Slide 7: Middleburg branch grand opening

    Middleburg branch grand opening growing within our communities April 8th, 2026 Middleburg market contributes over $100 million in deposits at less than 1.00% 7

  8. Slide 8: MainStreet Bancshares, Inc.

    MainStreet Bancshares, Inc. MNSB MainStreet Close common stock price $22.20 Bancshares, Inc. Price / tangible book value 87% trades on the Common shares 7,324,049 Russell 2000 Market capitalization $163 million Tangible book value Index $25.63 MNSBP Close preferred stock price $24.95 8

  9. Slide 9: 2026 first quarter financial summary

    2026 first quarter financial summary 1Q26 4Q25 3Q25 2Q25 1Q25 Profitability EPS $0.48 $0.46 $0.52 $0.53 $0.25 ROAA2 0.76% 0.75% 0.85% 0.86% 0.46% ROATCE2 7.58% 7.31% 8.40% 8.84% 4.29% Net interest margin1,2,3 3.47% 3.36% 3.42% 3.75% 3.30% Net loans ($ millions) $1,851 $1,842 $1,788 $1,767 $1,812 Tot

  10. Slide 10: Sound liquidity management

    Sound liquidity management Metric 1Q26 4Q25 3Q25 2Q25 Liquidity coverage ratio (LCR)1 122% 106% 147% 108% Loan / Deposit Ratio 98% 98% 100% 99% FDIC insured / total deposits 2 72% 72% 75% 74% High quality liquid assets 3 $220 $217 $196 $202 Secured line available balance $663 $587 $527 $551 Unsecure

  11. Slide 11: Net interest margin expansion

    Net interest margin expansion core strength drives NIM growth year-over-year Quarterly net interest margin 1 Core Net Interest Margin Reported Net Interest Margin 3.54% 3.90% 3.80% 3.70% core NIM 3.60% 3.54% 3.50% 3.47% 3.40% 3.30% 3.20% 3.10% 1Q25 2Q25 3Q25 4Q25 1Q26 1 Tax-equivalent yield 11

  12. Slide 12: Balance sheet is neutrally positioned

    Balance sheet is neutrally positioned Interest Rate Risk – Stress Test 10.00% 8.76% 8.00% 6.17% 6.08% % Change in Net interest Income 6.00% 4.67% 4.00% 3.17% 1.84% 1.71% 2.00% 0.00% 0.00% -2.00% -1.10% -4.00% % Change in Net Interest Income -6.00% -8.00% -10.00% -4% -3% -2% -1% 0% 1% 2% 3% 4% Immedi

  13. Slide 13: Optimizing funding costs within a competitive market

    Optimizing funding costs within a competitive market 64bp Interest-bearing DDAs Non-interest bearing DDAs Time decrease in deposit 43% 42% 43% 41% 39% cost year-on-year Our market’s clients are 19% 18% 19% 18% 20% sophisticated and financially astute which translates to a higher cost of deposits. We

  14. Slide 14: 2026 expectations

    2026 expectations • Forward looking expense run rate to stay The team continues under $13 million per quarter through remainder of the year. to focus on core revenue generation • Loan growth for 2026 expected to be between 3% and 5%. and expense control 14

  15. Slide 15: Share buyback program results

    Share buyback program results positive impact to book value $0.30 total accretion to TBV per common share $0.17 $0.13 accretion to TBV per common share $18.54 $22.22 average repurchase price 209,000 273,448 shares repurchased Q4 2025 Q1 2026 15

  16. Slide 16: Diversified loan portfolio with strategic management

    Diversified loan portfolio with strategic management and growth in owner-occupied CRE Q1 2026 YE 2025 Residential Residential Real Estate Real Estate 11% 12% Non-Owner Non-Owner Occupied CRE Occupied CRE 30% 30% Construction $1.9B $1.9B Construction 16% 16% C&I Owner- C&I 5% Occupied CRE 6% Multi-Fa

  17. Slide 17: Good loan metrics

    Good loan metrics Average New Loan Size $46,810 $44,488 $46,252 $44,798 Legal Lending Limit $42,986 The average new loan $34,104 size is indicative of $28,430 well-distributed credit $23,684 $3,323 risk management process $2,330 $2,045 $2,309 $1,911 $1,584 $1,397 $1,388 2019 2020 2021 2022 2023 2024

  18. Slide 18: Earning asset stress-test shows strong capital position

    Earning asset stress-test shows strong capital position Pre- and post-stress capital ratios 14.8% 15.4% 15.2% 15.1% 14.6% 22 years originating commercial 12.8% 12.6% 12.4% 11.8% loans with a 11.0% total cumulative principal loss of 7.0% $9.6 million 1Q25 2Q25 3Q25 4Q25 1Q26 Stress Loss Estimates ($0

  19. Slide 19: Positive outcomes for nonaccrual and work-out loans expected to continue

    Positive outcomes for nonaccrual and work-out loans expected to continue Classified Nonaccrual Loans Loans OREO Relationships 8 10 1 Balances $57.8 million $53.8 million $1.1 million As a % of 3.09% 2.88% 0.06% Gross Loans Nonaccrual loans millions Probable Outcome Properties in process of orderly R

  20. Slide 20: Government contractors self-fund with an appreciable surplus

    Government contractors self-fund with an appreciable surplus 30 asset-based lines of credit $104 $8.8M Total outstanding million Average non-interest bearing deposits $71.7M Morgan Higgins appointed Total committed to the Bank board - Partner at Blue Delta 3 term loans Capital, a minority investor i

  21. Slide 21: Financial highlights

    Financial highlights Year-End Financials Quarter-End Financials Q1’26 In $000 unless otherwise noted 2022 2023 2024 2025 Q1’25 Q2’25 Q3’25 Q4’25 Q1’26 LTM Interest Income 83,845 124,421 134,615 131,588 129,841 32,963 34,286 32,464 31,874 31,218 Interest Expense 13,836 47,679 72,041 62,043 59,314 16,

  22. Slide 22: Financial highlights continued

    Financial highlights continued Year-End Financials Quarter-End Financials Q1’26 2022 2023 2024 2025 Q1’25 Q2’25 Q3’25 Q4’25 Q1’26 In $000 unless otherwise noted LTM Performance Metrics (%) ROAA 1.53 1.38 -0.47 0.73 0.80 0.46 0.86 0.85 0.75 0.76 ROAE 13.98 12.66 -4.44 7.33 8.01 4.78 8.72 8.33 7.37 7.

  23. Slide 23: Definitions

    Definitions ACL Allowance for Credit Losses $MM Millions of Dollars AOCI Accumulated Other Comprehensive NCOs Net Charge-Offs Income CET1 Common Equity Tier-1 OREO Other Real Estate Owned CET1-RBC Common Equity Tier-1 Risk-Based ROAA Return on Average Assets Capital CRE Commercial Real Estate ROAE R

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