X0609 4 2026-05-15 0000073309 NUCOR CORP NUE 0001706490 Topalian Leon J false 1915 REXFORD ROAD CHARLOTTE NC 28211 1 Chair and CEO 0 Common Stock 2026-05-15 4 M 0 52000 42.46 A 195841.47 D Common Stock 2026-05-15 4 S 0 16239 226.8441 D 179602.47 D Common Stock 2026-05-15 4 S 0 21954 227.579 D 157648.47 D Common Stock 2026-05-15 4 S 0 9366 228.6337 D 148282.47 D Common Stock 2026-05-15 4 S 0 4441 229.3188 D 143841.47 D Common Stock 1357.8 I In Profit Sharing Plan Stock Option 42.46 2026-05-15 4 M 0 52000 0 D 2023-06-01 2030-05-31 Common Stock 52000 171981 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $226.190 to $227.180, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $227.190 to $228.150, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $228.210 to $229.120, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $229.290 to $229.358, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. As of May 15, 2026, the reporting person had a balance of $308,247.58 in the Nucor Stock Fund in the Nucor Profit Sharing Plan. The number of shares has been calculated by the plan administrator of such plan. Employee Stock Option (right to buy) /s/ Caitlin A. Kelly, attorney-in-fact for Mr. Topalian 2026-05-19