X0306 4 2018-03-19 0000073309 NUCOR CORP NUE 0001575656 NAPOLITAN RAYMOND S JR 1915 REXFORD ROAD CHARLOTTE NC 28211 1 Executive Vice President Common Stock 2018-03-19 4 S 0 8000 65.11 D 78381.45 D Common Stock 2808.5815 I In Profit Sharing Plan The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.98 to $65.235, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Security and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. As of March 19, 2018, the reporting person had a balance of $183,484.63 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. /s/ Kelly J. Wilmoth, attorney-in-fact for Mr. Napolitan 2018-03-21