Expanding Net Interest Margin, Resilient Loan Portfolio and Well Capitalized FAIRFAX, Va., April 21, 2025 /PRNewswire/ -- MainStreet Bancshares, Inc. (Nasdaq: MNSB & MNSBP), the financial holding company for MainStreet Bank, reported first quarter net income of $2.5 million with a net interest margin of 3.30%, up 34 basis points from the previous quarter. Net interest income after provision for credit losses was $16.5 million, up $3.9 million from the previous quarter and earnings per common share were $0.2 ...