Form 8-K Filing by MainStreet Bancshares, Inc.

MainStreet Bancshares, Inc. held its Annual Meeting of Shareholders on May 21, 2026. Shareholders elected directors, ratified the appointment of Yount, Hyde & Barbour, P.C. as the independent registered public accounting firm for fiscal year 2026, and approved an advisory vote on executive compensation. On May 22, 2026, the Board of Directors declared a quarterly cash dividend on the Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock, payable on June 30, 2026, to shareholders of record on June 15, 2025. The dividend amounts to approximately $0.47 per Depositary Share. Future dividends are expected to be paid quarterly.