X0306 4 2015-06-01 0000073309 NUCOR CORP NUE 0001575656 NAPOLITAN RAYMOND S JR 1915 REXFORD ROAD CHARLOTTE NC 28211 1 Executive Vice President Common Stock 2015-06-01 4 F 0 155 47.30 D 59372.05 D Common Stock 2015-06-01 4 F 0 193 47.30 D 59179.05 D Common Stock 2015-06-01 4 F 0 654 47.30 D 58525.05 D Common Stock 2015-06-01 4 A 0 6303 0 A 64828.05 D Common Stock 2015-06-01 4 A 0 9088 0 A 73916.05 D Common Stock 2505.165 I In Profit Sharing Plan Stock Option 47.59 2015-06-01 4 A 0 51238 0 A 2018-06-01 2025-05-31 Common Stock 51238 51238 D The shares of common stock reported are issuable to the reporting person upon vesting of restricted stock units that represent the right to receive one share of common stock. The restricted stock units vest in three annual installments commencing on June 1, 2016, subject to acceleration upon the date of termination of the reporting person's employment with the company by reason of death, disability or retirement or upon a change in control of the company. The company will issue the shares of common stock represented by the units to the reporting person or, if applicable, his or her estate, as soon as administratively practicable after the units become vested. The shares of common stock reported are issuable to the reporting person upon vesting of restricted stock units that represent the right to receive one share of common stock. The restricted stock units vest upon the date of termination of the reporting person's employment with the company by reason of death, disability or retirement or upon a change in control of the company. The company will issue the shares of common stock represented by the units to the reporting person or, if applicable, his or her estate, as soon as administratively practicable after the units become vested. As of June 1, 2015, the reporting person had a balance of $123,730.09 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/ Kelly J. Wilmoth, attorney-in-fact for Mr. Napolitan 2015-06-03