Here are 1-2 brief analogies for MainStreet Bancshares (MNSB):

• Like a regional Bank of America, specifically serving businesses and individuals in the Northern Virginia and DC Metro area.
• Think of it as the community-focused Wells Fargo for the Fairfax, Virginia region.

MainStreet Bancshares (MNSB) offers the following major products and services:

• Deposit Accounts: Provides various accounts including checking, savings, money market, sweep accounts, and certificates of deposit for individuals and businesses.
• Commercial Lending: Offers a range of commercial loans for working capital, equipment, government contracts, acquisitions, commercial real estate, and construction.
• Residential Real Estate Loans: Extends loans for residential properties, facilitating home purchases and refinancing for consumers.
• Consumer Lending: Provides personal term loans, overdraft protection, and issues debit and credit cards for individual banking needs.
• Cash Management Services: Delivers services such as wire transfers, remote deposit capture, online cash management, and courier services primarily for businesses.
• Digital Banking: Offers online and mobile banking platforms for convenient and remote access to accounts and banking services.
• Deposit Insurance Solutions: Provides solutions designed to help customers manage and maximize FDIC insurance coverage on their deposits.

MainStreet Bancshares (MNSB) serves a diversified customer base, and does not have a few major corporate customers that can be individually named. Instead, it primarily serves the following three categories of customers:

• Individuals
• Small to medium-sized businesses
• Professional service organizations

• Visa Inc. (V)
• Mastercard Incorporated (MA)

Jeff Dick, Chairman, President and Chief Executive Officer

Jeff Dick is a co-founder of MainStreet Bank and serves as Chairman, CEO, and President of MainStreet Bancshares, Inc. and MainStreet Bank. He held the title of President of the Bank until December 2016. Prior to co-founding MainStreet Bank, he served in various positions at another community bank from 1999 until January 2003, including Executive Vice President and as a member of the Board of Directors. From 1996 to 1999, Mr. Dick advised the Bank of England (UK Central Bank) and the Financial Services Authority (FSA) on risk-based banking supervision. He commenced his banking career in 1983 as a Field Examiner with the Office of the Comptroller of the Currency, becoming a Field Manager in Washington, D.C., in 1993.

Thomas J. Chmelik, Senior Executive Vice President, Chief Financial Officer and Secretary

Thomas J. Chmelik is a co-founder of MainStreet Bank and a Director of MainStreet Bancshares, Inc., and MainStreet Bank. He has held Chief Financial Officer roles at several other financial institutions, including Colombo Bank in Bethesda, Maryland (1993-1995), Franklin National Bank of Washington, D.C. (1989-1993), and a local community bank (1998-2002). From 1995 to 1998, he served as Chief Financial Officer for The National Bank of Commerce in Tanzania, Africa, as part of a World Bank initiative for its restructuring.

Abdul Hersiburane, President, MainStreet Bank

Abdul Hersiburane is the President of MainStreet Bank and a Director on its Board. He began his banking career in Somalia in 1984 and moved to the United States in 1995. Before joining MainStreet Bank in 2007 as a Business Banker, he worked as a Senior Financial Specialist and Financial Advisor with First Union Bank/Wachovia Bank from 1996 to 2006. He became the head of Business Banking at MainStreet Bank in 2015.

Todd Youngren, Executive Vice President, Director of Commercial and Treasury Services, MainStreet Bank

Todd Youngren serves as the Executive Vice President and Director of Commercial and Treasury Services for MainStreet Bank.

The key risks to MainStreet Bancshares (MNSB) are primarily concentrated around its loan portfolio quality, sensitivity to interest rate fluctuations, and overall profitability challenges within its competitive operating environment.

The most significant risk for MainStreet Bancshares is Credit Risk, stemming from the quality of its loan portfolio. The company experienced a "notable increase in past due and non-accrual loans in 2025," with these metrics exceeding national averages for its peers. MainStreet Bancshares has also "struggled to limit its exposure to commercial real estate," a sector that can be particularly sensitive to economic downturns. Despite low net charge-offs in 2025, non-performing loans amounted to $31.5 million, and the allowance for bad loans only covered approximately 81% of these problem credits, indicating a potential vulnerability if credit conditions deteriorate further.

A second major risk is Interest Rate Risk, particularly concerning its high cost of deposits. MainStreet Bancshares' average cost of interest-bearing deposits in Q4 2025 was 3.68%, which was 99 basis points higher than the national average for comparable banks. This elevated funding cost directly impacts the bank's net interest margin (NIM), which is a key measure of profitability for financial institutions, and "prolonged high rates could sustain margin compression".

Finally, Profitability Challenges represent a significant underlying risk. The bank's "low return on assets and high cost of deposits make its profitability more challenging" compared to its peers. Its Return on Assets (ROA) is "well below the community bank average". Operating in the competitive Washington D.C. metropolitan area, MainStreet Bancshares faces pressures that contribute to its struggles in consistently generating profits at levels comparable to the industry, leading the market to price its stock at a discount.

The clear emerging threat for MainStreet Bancshares is the proliferation and increasing adoption of fintech companies and digital-only banks (neobanks). These entities leverage technology to offer financial products and services, including deposit accounts, online lending, and payment solutions, often with lower overhead costs and a more streamlined digital user experience compared to traditional brick-and-mortar banks. This competition directly challenges MainStreet Bancshares' core offerings to individuals, small to medium-sized businesses, and professional service organizations by providing alternative, often more agile, and competitively priced banking solutions.

MainStreet Bancshares (MNSB) operates primarily in Northern Virginia and Washington D.C. The addressable markets for its main products and services in these regions are as follows:

Commercial Loans and Commercial Real Estate Loans

• In Virginia, the total commercial real estate lending volume was approximately $19.2 billion in 2024. The commercial real estate transaction volume in Virginia for 2024 was about $13.9 billion.
• For small business loans in Virginia, reporting banks issued $14 billion in 2024.
• The broader "Real Estate Loans & Collateralized Debt industry" in Virginia, which encompasses both commercial and residential, is projected to have a market size of $108.4 billion in 2026.

Residential Real Estate Loans

• In Virginia, new home loans booked in 2024 amounted to $35.2 billion.
• For the Washington-Arlington-Alexandria, DC-VA-MD-WV core-based statistical area, the purchase loan volume is forecasted to exceed $40 billion in 2025. The total value of the housing market in the DC area was reported to be $1.147 trillion in September 2025.

Deposit Accounts

• The total deposits in all banks across Virginia were $296 billion in the second quarter of 2024.

MainStreet Bancshares (MNSB) is expected to drive future revenue growth over the next 2-3 years through several key strategies:

1. Net Interest Margin (NIM) Expansion and Resilience: The company has been actively managing its balance sheet to reduce funding costs. This includes repricing retail and wholesale certificates of deposit (CDs) at lower rates and increasing non-interest-bearing and low-cost transactional deposits. Management anticipates that stable or decreasing interest rates in 2025 and 2026 will further contribute to improving its net interest margin.
2. Loan Portfolio Growth and Diversification: MainStreet Bancshares is focused on achieving continued loan growth, with expectations of 3-4% growth over the first six months of 2026. The bank emphasizes a strategy of pursuing "smaller sized opportunities within our market" and maintaining a well-diversified loan book, including non-owner occupied commercial real estate, multi-family, and owner-occupied real estate loans.
3. Growth in Non-Interest Bearing and Low-Cost Deposits: A significant driver for improved profitability is the strategic increase in non-interest-bearing and low-cost transactional deposits. The company reported a noticeable increase in non-interest-bearing accounts, which comprised 20% of total deposits at the end of 2025, up from 17% at the end of 2024. This growth helps lower the overall cost of funds and enhance net interest income.
4. Strategic Expansion within the D.C. Metropolitan Area: MainStreet Bancshares is leveraging its deep roots and strong reputation in the vibrant Washington, D.C. metropolitan area. The company plans to expand its physical presence, including the opening of a new branch in Middleburg, Virginia, in February 2026, indicating a continued focus on organic growth within its core market.
5. Leveraging Technology and "Branch-Lite" Model for Business Customers: As a "business-focused" community bank, MainStreet Bancshares utilizes a "branch-lite" model and robust online business banking technology to serve its small to medium-sized business and professional service organization clients. This approach, exemplified by their "Put Our Bank in Your Office®" service, allows for efficient customer acquisition and service delivery in their competitive market.