X0306 4 2022-08-15 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 USLM Common Stock 2022-08-15 4 S 0 1477 109.58 D 35643 D USLM Common Stock 2022-08-15 4 S 0 1557 108.66 D 34086 D USLM Common Stock 2022-08-16 4 S 0 131 107.82 D 33955 D USLM Common Stock 2022-08-16 4 S 0 300 106 D 33655 D USLM Common Stock 2022-08-17 4 S 0 1161 103.65 D 32494 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.10 to $110.09, 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 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.50 to $109.00, inclusive. The price reported in Column 4 is a weighted average price. These shares were sole in multiple transaction at prices ranging from $107.74 to 108.72, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.50 to $104.00, inclusive. \s\ Timothy W Byrne 2022-08-17