MainStreet Bancshares, Inc.

MainStreet Bancshares, Inc.

MNSB·NASDAQ

$22.67

+0.20%
Financial ServicesBanks - Regional

MainStreet Bancshares, Inc. operates as the bank holding company for MainStreet Bank that provides various banking products and services for individuals, small to medium-sized businesses, and professional service organizations. The company offers demand, NOW, money market, savings, and sweep accounts, as well as certificates of deposit; business and consumer checking, interest-bearing checking, business account analysis, and other depository services; and cash management, wire transfer, check imaging, remote deposit capture, and courier services. It also provides commercial loans, including government contract receivables, plant and equipment, general working capital, contract administration, and acquisition loans; commercial real estate, real estate construction, and residential real estate loans; and consumer loans comprising term loans and overdraft protection, as well as debit and credit cards. In addition, the company provides deposit insurance solutions; remote deposit of checks; and internet bill payment, online cash management, and online and mobile banking services. As of March 18, 2022, it operated six branches in Herndon, Fairfax, McLean, Leesburg, Clarendon, and Washington D.C., as well as 55,000 automated teller machines. MainStreet Bancshares, Inc. was incorporated in 2003 and is headquartered in Fairfax, Virginia.

At a Glance

Live Snapshot
Market Cap$161.35M
EPS1.7600
P/E Ratio12.88
Earnings Date07/28/2026

SEC Filings

MNSB - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
S-3/A

S-3/A (Amended)

N/A

June 03, 2026
June 03, 2026
 
8-K

8-K 2026

N/A

May 26, 2026
May 26, 2026
2026
8-K

8-K 2026

N/A

May 22, 2026
May 22, 2026
2026
S-3

S-3

N/A

May 15, 2026
May 15, 2026
 
10-Q

10-Q 2026 Q1

Q1

May 08, 2026
March 31, 2026
2026
8-K

8-K 2026

N/A

April 24, 2026
April 24, 2026
2026
8-K

8-K 2026

N/A

April 21, 2026
April 21, 2026
2026
8-K

8-K 2026

N/A

April 20, 2026
April 20, 2026
2026
DEF 14A

DEF 14A 2025

N/A

April 17, 2026
December 31, 2025
2025
8-K

8-K 2026

N/A

April 13, 2026
April 13, 2026
2026
Showing 1 to 10 of 188 filings

Understanding SEC Filings

Essential regulatory documents for investors

SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.

10-K

Annual Report

Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.

Filed annually
10-Q

Quarterly Report

Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.

Filed 3 times per year
8-K

Current Report

Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.

Filed as events occur
DEF 14A

Proxy Statement

Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.

Filed before shareholder meetings
S-1

Registration Statement

Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.

Filed for new offerings
20-F

Foreign Annual Report

Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.

Foreign companies only

Why SEC Filings Matter

  • Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
  • Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
  • Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
  • Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
  • Historical Context: Years of filings provide trend analysis and context for current performance