Other Events. On August 21, 2026, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00 per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of the…

Results of Operations and Financial Condition. On July 20, 2026, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s second quarter 2026 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Other Events. On May 26, 2026, MainStreet Bancshares, Inc. (the “Company”) the holding company for MainStreet Bank, announced that since the beginning of the second quarter, the Company has repurchased 207,000 shares of outstanding common stock at an average price of $24.09 per share under its current stock repurchase program. The shares were repurchased in accordance with the limitations set forth in Rule 10b-18 of the Securities and Exchange Commission and other applicable legal requirement…

Other Events. On May 22, 2026, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00 per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of the Se…

Other Events. On April 24, 2026, the Board of Directors of MainStreet Bancshares, Inc. announced a new stock repurchase program (the "New Stock Repurchase Program") to repurchase up to $10.0 million in shares of the Company’s outstanding common stock. This New Stock Repurchase Program will replace and supersede the Company's existing stock repurchase program which was originally announced on October 21, 2025. The timing, number and purchase price of stock repurchased under the New Stock Repur…

Results of Operations and Financial Condition. On April 20, 2026, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s first quarter 2026 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Other Events. On March 3, 2026, MainStreet Bancshares, Inc. (the “Company”) the holding company for MainStreet Bank, announced that since the beginning of the year, the Company has repurchased 174,280 shares of outstanding common stock at an average price of $22.45 per share under its current stock repurchase program. The shares were repurchased in accordance with the limitations set forth in Rule 10b-18 of the Securities and Exchange Commission and other applicable legal requirements. As of…

Other Events. On February 20, 2026, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00 per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of t…

Results of Operations and Financial Condition. On January 26, 2026, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s fourth quarter and year-ended 2025 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Chief Financial Officer — Richard A. Vari: Richard A. Vari was promoted to Executive Vice President and Chief Financial Officer.

Director — Ali Reza Manouchehri: Mr. Manouchehri is resigning due to his new role requiring full time and attention.

Chief Financial Officer — Thomas J. Chmelik: Mr. Chmelik is retiring from his role as CFO but will continue in a reduced capacity.

Chief Financial Officer — Mr. Thomas J. Chmelik: Mr. Chmelik will retire from the role of Chief Financial Officer but will remain in other roles and on the Board.

Other Events. On November 21, 2025, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00 per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of t…

Other Events. On November 4, 2025, MainStreet Bancshares, Inc. (the “Company”) the holding company for MainStreet Bank, announced that the Company has repurchased 209,000 shares of outstanding common stock at $18.54 per share under its current stock repurchase program. The shares were repurchased in accordance with the limitations set forth in Rule 10b-18 of the Securities and Exchange Commission and other applicable legal requirements. As of September 30, 2025, our tangible book value was $2…

Results of Operations and Financial Condition. On October 27, 2025, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s third quarter 2025 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Other Events. On October 16, 2025, the Board of Directors of MainStreet Bancshares, Inc. authorized a new stock repurchase program (the "New Stock Repurchase Program") to repurchase up to $10.0 million of the Company’s outstanding common stock. This New Stock Repurchase Program will replace and supersede the Company's existing stock repurchase program which was originally announced on May 19, 2022. The timing, number and purchase price of stock repurchased under the New Stock Repurchase Progr…

Director — Wendy Adeler Hall: Appointment of Wendy Adeler Hall as a director to fill the position vacated by Elizabeth Bennett.

Results of Operations and Financial Condition. On July 22, 2025, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s second quarter 2025 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Other Events. On May 23, 2025, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of the Ser…

Results of Operations and Financial Condition. On April 21, 2025, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s first quarter 2025 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Other Events. On February 27, 2025, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00 per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of t…

Results of Operations and Financial Condition. On January 27, 2025, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s fourth quarter and year ended December 31, 2024 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.

Other Events. On November 22, 2024, the Board of Directors of MainStreet Bancshares, Inc. announced the declaration of a quarterly cash dividend on the outstanding shares of the Company’s 7.50% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, par value $1.00 per share (the “Series A Preferred Stock”). On September 15 and 25, 2020, the Company issued an aggregate of 1,150,000 depositary shares (the “Depositary Shares”), each representing a 1/40th ownership interest in a share of t…

Results of Operations and Financial Condition. On October 28, 2024, MainStreet Bancshares, Inc. (the “Company”) issued a press release setting forth the Company’s third quarter and year-to-date ended September 30, 2024 unaudited financial results. A copy of the Company’s press release is attached hereto as Exhibit 99.1, is hereby incorporated by reference, and will be posted on the Company's website.