X0609 4 2026-09-08 0000717806 FIRST US BANCSHARES, INC. FUSB 0002032475 FIELD Robert C false 3291 US HIGHWAY 280 BIRMINGHAM AL 35243 true false false false false Common Stock, $.01 par value 2026-09-08 4 P false 284 16.47 A 12397 I By Highland Mortgage, LLC Common Stock, $.01 par value 2026-09-09 4 P false 877 16.47 A 13274 I By Highland Mortgage, LLC Common Stock, $.01 par value 2960 D The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. This price represents the weighted average purchase price (rounded to the nearest cent) for multiple transactions reported on this line. The prices of the transactions reported on this line ranged from $16.47 to $16.48. Upon request by the Commission staff, the issuer or a security holder of the issuer, the reporting person will undertake to provide full information regarding the number of shares purchased at each separate price. /s/Beverly J. Dozier, by power of attorney 2026-09-10