X0407 4 2023-05-19 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 2023-05-19 4 S 0 1510 187.39 D 37560 D USLM Common Stock 2023-05-19 4 S 0 992 187.48 D 36568 D USLM Common Stock 2023-05-19 4 S 0 455 186.93 D 36113 D USLM Common Stock 2023-05-19 4 S 0 8 186.43 D 36105 D USLM Common Stock 2023-05-19 4 S 0 35 186.03 D 36070 D USLM Common Stock 2023-05-22 4 S 0 383 188.3 D 35687 D USLM Common Stock 2023-05-22 4 S 0 1148 189.84 D 34539 D USLM Common Stock 2023-05-22 4 S 0 1047 187.16 D 33492 D USLM Common Stock 2023-05-22 4 S 0 577 190.32 D 32915 D USLM Common Stock 2023-05-22 4 S 0 421 189.02 D 32494 D USLM Common Stock 2023-05-23 4 S 0 700 186.78 D 31794 D USLM Common Stock 2023-05-23 4 S 0 35 188.39 D 31759 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.21 to $188.19, 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 through 11. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.91 to $187.72, inclusive. The price reported in Column 4 is a weighted average price. these shares were sold in multiple transactions at price ranging from $186.24 to $187.15, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at price ranging from $186.36 to $186.63, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.00 to $186.09, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.81 to $188.79, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.6 to $189.99, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.00 to $187.53, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.00 to $191.00, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.00 to $189.05, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.52 to $187.10, inclusive. \s\ Timothy W Byrne 2023-05-23