Mercantile Bank Corporation · NASDAQ:MBWM

Mercantile Bank — Q1 2026 Earnings Presentation

38 slides from Mercantile Bank's earnings presentation, Apr 21, 2026

  1. Slide 1: Investor Presentation April 2026

    Investor Presentation April 2026

  2. Slide 2: Forward-Looking Statements

    Investor Presentation Forward-Looking Statements This presentation contains statements or demand for products and services; climate information that may constitute forward-looking impact; labor markets; the degree of statements within the meaning of the Private competition by traditional and nontrad

  3. Slide 3: Executive Management Team

    Investor Presentation Executive Management Team RAYMOND REITSMA CHARLES CHRISTMAS PRESIDENT AND EVP, CHIEF FINANCIAL OFFICER, CHIEF EXECUTIVE OFFICER AND TREASURER Mr. Reitsma was appointed Mr. Christmas has served as Chief President and Chief Executive Financial Officer at Mercantile since Officer

  4. Slide 4: Financial Performance First Quarter 2026

    Financial Performance First Quarter 2026

  5. Slide 5: 1Q26 Performance Highlights

    Financial Performance • 9% EPS growth quarter-over-quarter • EPS of $1.32 in 1Q26 vs. $1.21 in 1Q25 EARNINGS1 • 1.4% ROAA and 12.5% ROAE in 1Q26 vs. 1.3% ROAA and 13.3% ROAE in 1Q25 • Net interest margin of 3.55% in 1Q26 vs. 3.47% in 1Q25 NET INTEREST • Driven by lower costs of funds relating to EMB

  6. Slide 6: Historical Trends and Shareholder Value

    Financial Performance Total Assets Total Loans 9.0% CAGR 8.6% CAGR $8 6.8 $6 6.1 4.6 4.8 $5 4.3 $6 5.3 5.4 3.9 4.9 3.5 4.4 $4 3.2 Billions Billions $4 $3 $2 $2 $1 $0 $0 Historical Trends 2020 2021 2022 2023 2024 2025 2020 2021 2022 2023 2024 2025 and Shareholder Total Deposits TBVPS Value 9.2% CAGR

  7. Slide 7: Loan-to-Deposit Ratio

    Financial Performance 105% $5,500 99.7% 100% 99.0% Loan-to-Deposit 95.9% $5,000 Ratio* 95% (In millions) 91.2% 90% 88.9% Multi-year strategic initiative to reduce loan-to-deposit ratio $4,500 • Reduced to 89% from 99% over last twelve months 85% 80% $4,000 1Q25 2Q25 3Q25 4Q25 1Q26 Loan to Deposit Ra

  8. Slide 8: Interest Rate Scenarios

    Financial Performance Interest Rate Scenarios Balance Sheet Structure $100mm 50% Supports Stable Net Interest $80mm 40% Income Across Rate Environments $60mm 30% $40mm 20% • Purchases of highly discounted 5.6% 6.7% 7.3% $20mm 2.3% 4.8% 10% callable agency bonds provide -3.5% -2.9% additional protect

  9. Slide 9: Stable margin and net interest income in a declining interest rate environment

    Financial Performance $56 8.0% $55 Stable margin and $52 $51 $49 net interest income in 7.0% $50 $49 a declining interest 6.0% 5.73% 5.75% 5.74% 5.52% 5.42% $45 rate environment 5.0% 4.35% 4.35% In millions 4.34% $40 Stable net interest margin 4.01% 4.0% 3.68% • Proactive balance sheet $35 managemen

  10. Slide 10: Solid net interest income in a lower interest rate environment

    Financial Performance Change in asset mix as on balance sheet liquidity grows $6.4 $5.7 $5.7 $5.9 $5.9 $90mm $6B $80mm $8 $11 $11 $14 $8 $5B $70mm Interest Income $60mm $4B Assets $50mm $3B $40mm $75 $72 $74 $71 $72 $30mm $2B $20mm $1B $10mm $0mm $0B 1Q25 2Q25 3Q25 4Q25 1Q26 Net Interest Income Inte

  11. Slide 11: Noninterest Income

    Financial Performance Service charges on accounts (+35%) Payroll services (+5%) Mortgage banking income (+12%) Credit and debit card income (+17%) Interest rate swap income (+729%) Earnings on bank owned life insurance (+23%) Other income (+249%) (%) Reflects 1Q 2026 compared to 1Q 2025 $12mm $10mm

  12. Slide 12: Mortgage Loan Activity

    Financial Performance MORTGAGE LOAN ORIGINATIONS $160,000 $140,000 30,700 28,800 $120,000 55,500 (In thousands) $100,000 59,200 18,900 $80,000 $60,000 111,200 108,000 Mortgage Loan $40,000 81,500 86,000 68,800 $20,000 Activity $0 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr 1st Qtr 2025 2025 2025 2025 2026 Purch

  13. Slide 13: Noninterest Expense

    Financial Performance 62% $40mm 59% 55% 56% 60% 54% $30mm 50% 40% $20mm 30% 20% $10mm 10% Noninterest $0mm 0% Expense 1Q25 2Q25 3Q25 4Q25 1Q26 Salaries and benefits Occupancy Furniture and equipment Data processing costs Stable Core Costs Core conversion costs Acquisition costs • Increase in salary

  14. Slide 14: Loan Growth

    Financial Performance Quarter End Core Commercial Loan Growth Trends (reflects period end balances) $4.0B 3.94 3.92 $3.9B 3.82 $3.8B 3.75 3.75 $3.7B Loan Growth $3.6B Mar-25 Jun-25 Sep-25 Dec-25 Mar-26 Consistent Fundings • Commercial loan focused • Solid historical growth Total Loan Portfolio Growt

  15. Slide 15: Asset Quality

    Financial Performance Quarterly Asset Quality Metrics 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr 1st Qtr ($ in thousands) 2025 2025 2025 2025 2026 Gross loan charge-offs $ 100 0 200 2,800 0 Recoveries $ 200 100 700 200 400 Asset Quality Net loan charge-offs (recoveries) $ (100) (100) (500) 2,600 (400) Net loan

  16. Slide 16: Commercial Total Loan Portfolio Rate Type Repricing Breakdown

    Financial Performance Total Loan Portfolio Total Loan Portfolio Rate Type Repricing Breakdown $3.0B $2.5B 0 – 12 Months $2.0B 1 – 5 Years Fixed Rate Loans: 23% $1.5B Over 5 Years Funding sources $1.0B $0.5B designed to match $0.0B Retail Retail Commercial Commercial asset repricing Variable Rate cha

  17. Slide 17: Investment Portfolio Composition

    Financial Performance Total Investment Portfolio Composition As of March 31, 2026 As of December 31, 2025 $800mm $800mm Unrealized Losses $700mm $700mm Unrealized Gains $600mm $600mm Amortized Cost $500mm Fair Value $500mm $400mm $400mm $300mm $300mm Investment $200mm $100mm $200mm $100mm Portfolio

  18. Slide 18: Deposits and Sweep Accounts

    Financial Performance $6.0B $5.0B Deposits and $4.0B Sweep Accounts* $3.0B $2.0B • 10% growth (annualized) in total deposits in the first quarter 2026 • 15% growth (annualized) in local $1.0B deposits in the first quarter 2026 • Continued reduction in wholesale funding $0.0B 1Q25 2Q25 3Q25 4Q25 1Q26

  19. Slide 19: Deposit Balances

    Financial Performance Personal 35% Business 65% Deposit Balances* ($ in thousands) March 31, 2026 December 31, 2025 Deposits comprised primarily of business accounts Personal Business Personal Business Noninterest-Bearing Checking $ 241,100 1,090,900 216,100 1,123,700 Interest Checking $ 253,900 760

  20. Slide 20: Large Depositors

    Financial Performance Stable Large Depositors Depositors with over $5 million as of March 31, 2026 Total – 93 relationships aggregating $1.9 billion Business/Individual – 64 relationships aggregating $1.6 billion Governmental – 29 relationships aggregating $0.3 billion Large Depositors (Includes Swe

  21. Slide 21: Capital Ratios

    Financial Performance Mercantile Bank Corporation Consolidated Capital Ratios 16.00% Capital Ratios 14.00% 12.00% 10.00% Both of Mercantile Bank Corp’s subsidiaries, Mercantile Bank and Eastern Michigan Bank, 8.00% have regulatory capital levels in excess of the amounts necessary to be categorized a

  22. Slide 22: Sources of Liquidity

    Financial Performance Availability Sources of Source ($ in thousands) Liquidity* Unsecured Federal Funds Lines of Credit $ 50,000 FHLB of Indianapolis Advance Program $ 837,000 Unpledged Investments $ 752,000 Federal Reserve Discount Window $ 153,000 *As of March 31, 2026 22

  23. Slide 23: Thoughts on 2026

    Financial Performance Thoughts on 2026 PRIME / SOFR RATES • No rate changes during 2026 PERFORMANCE METRICS 2nd QUARTER 3rd QUARTER 4th QUARTER Loan Growth 5.00%-7.00% 5.00%-7.00% 5.00%-7.00% (annualized) Net Interest Margin 3.50%-3.60% 3.55%-3.65% 3.60%-3.70% Fee Income $11.0MM-$12.0MM $11.0MM-$12.

  24. Slide 24: Loan Portfolio Characteristics

    Loan Portfolio Characteristics Strong Credit Culture Diversified Lending

  25. Slide 25: Total Loans

    Loan Portfolio Characteristics Total Loans* ($ in thousands) Balance Percentage COMMERCIAL LOANS Commercial and Industrial $ 1,429,800 30% Real Estate – NonOwner Occupied $ 1,101,800 23% Real Estate – Owner Occupied $ 799,100 17% Real Estate – Multi-Family & Residential Rental $ 485,200 10% Real Est

  26. Slide 26: Asset Quality Metrics

    Loan Portfolio Characteristics Asset Quality Metrics Quarter Trends ($ in thousands) • Continued strong asset quality metrics • 11 basis points nonperforming assets to total assets as of March 31, 2026 3/31/25 6/30/25 9/30/25 12/31/25 3/31/26 Net loan charge-offs (recoveries) $ (100) (100) (500) 2,6

  27. Slide 27: Lending Commitments

    Loan Portfolio Characteristics Lending Commitments ($ in millions) *Commitments to make loans generally reflect our binding obligations to existing and prospective commercial customers to extend credit, including line of credit facilities secured by accounts receivable and inventory, and term debt s

  28. Slide 28: Composition – Commercial Loans

    Loan Portfolio Characteristics Composition – Commercial Loans 1,2 Wholesale Trade 5% Retail Trade 6% Commercial Real Estate - Transportation & Manufacturing Multi-Family & Warehousing 1% Commercial 19% Residential Real Estate - Information Rental Non-Owner 13% <1% Occupied 28% Construction 7% Financ

  29. Slide 29: Rate Type – Commercial Loans

    Strong Credit Culture 23% 77% Floating Rate Commercial Loans Fixed Rate Commercial Loans Rate Type – Commercial Loans* RATE TYPE BREAKDOWN ($ in millions) Balance Floating Rate Commercial Loans $ 3,026,400 Fixed Rate Commercial Loans $ 909,000 Total Commercial Loans $ 3,935,400 *As of March 31, 2026

  30. Slide 30: Past Due Loans

    Loan Portfolio Characteristics Past Due Loans Commercial and Retail Past Due Loans* ($ in millions) Recorded 30–59 60–89 > 89 Balance > Days Past Days Past Days Total Total 89 Days & Due Due Past Due Past Due Current Loans Accruing Commercial and $ 0.2 – – 0.2 1,429.6 1,429.8 – Industrial Vacant Lan

  31. Slide 31: Past Due Loans

    Loan Portfolio Characteristics $8.0 10 bps* $7.0 $6.0 as % of $5.0 Total Loans $4.0 Past Due Loans Millions $3.0 $2.0 $1.0 $0.0 30-89 Days Past Due 90 Days & Over Past Due Over 89 Days Past Due & Accruing *As of March 31, 2026 31

  32. Slide 32: FDIC Commercial Real Estate Lending Concentration

    Loan Portfolio Characteristics FDIC Commercial Real Estate Lending 300% Concentration 290% Guideline for 280% Mercantile Bank 270% 260% 250% Commercial Real Estate Loans / 240% Total Regulatory Capital 230% Generally not to exceed 300% 220% 210% 200% 3/31/2025 6/30/2025 9/30/2025 12/31/2025 3/31/202

  33. Slide 33: Non-Owner Occupied Commercial Real Estate Lending

    Loan Portfolio Characteristics Non-Owner Occupied Commercial Current NOO CRE Composition Real Estate Lending* Industrial 7% 5% Retail 5% • 100% of office NOO CRE is located in Michigan Office 3% 2% • 33% of office is medical Hotel 1% • Increase in nonperforming NOO CRE loans related to Assisted Livi

  34. Slide 34: Company Overview

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  35. Slide 35: The largest bank founded, headquartered, and serving in Michigan.

    Company Overview The largest bank founded, headquartered, and MB EMB (1) serving in Michigan. OVERVIEW • Founded in 1997 in Grand Rapids, MI. • $6.9 billion in total assets. • Acquisition of Eastern Michigan Financial Corporation closed December 31, 2025 • More than 760 employees and over 50 locatio

  36. Slide 36: Strategic Areas of Focus

    Company Overview Strategic Areas of Focus CLIENT EXPERIENCE • Expand presence in Southeast • Explore use cases for artificial • Deploy new client onboarding and Michigan intelligence deployment servicing technologies • Deploy new and upgraded • Enhance existing technology PEOPLE AND CULTURE software

  37. Slide 37: Product Offering

    Company Overview Product Offering Highly competitive commercial and retail capabilities. PEER PRODUCT MBWM BAC JPM FITB CMA Autobooks for Small Business with Electronic  Invoicing and Receivables Bill Payment and ACH      Cash Management      Credit Card Rewards      Electric Vehicle

  38. Slide 38: YIN INN INN

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