Exhibit 99.1 First US Bancshares, Inc. Reports Fourth Quarter and 2025 Results: Quarter-over-Quarter Net Income Improvement of 10% BIRMINGHAM, AL (January 28, 2026) – Fourth Quarter and Full Year Highlights: First US Bancshares, Inc. (Nasdaq: FUSB) (the "Company"), the parent company of First US Bank (the "Bank"), today reported net income of $2.1 million, or$0.36 per diluted share, for the quarter ended December 31, 2025 ("4Q2025"), compared to $1.9 million, or$0.32 per diluted share, for the quarter end ...