X0508 4 2025-09-03 0 0000082020 UNITED STATES LIME & MINERALS INC USLM 0001204973 BYRNE TIMOTHY W 5429 LBJ FREEWAY SUITE 230 DALLAS TX 75240 1 1 0 0 President & CEO 0 USLM Common Stock 2025-09-03 4 S 0 26034 120.88 D 99923 D USLM Common Stock 2025-09-03 4 S 0 1391 124.18 D 98532 D USLM Common Stock 2025-09-04 4 S 0 11504 119.43 D 87208 D USLM Common Stock 2025-09-04 4 S 0 596 120.76 D 86432 D USLM Common Stock 2025-09-05 4 G 0 500 120.99 D 85932 D The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.78 to $121.30, inclusive. The reporting person undertakes to provide United States Lime & Minerals, Inc., any security holder of United States Lime & Minerals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in Footnotes 1, 2, 3 and 4. The price in Column 4 is a weighted average price. These shares were sold in multiple transaction at prices ranging from $124.00 to $124.37,inclusive. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.17 to $120.00, inclusive. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.75 to $121.54. Closing per share price on the date preceding the date of contribution. \s\ Timothy W Byrne 2025-09-05