Executive Change

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549     FORM 8-K     CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2026     NUCOR CORPORATION (Exact name of registrant as specified in its charter)       Delaware   1-4119   13-1860817 (State or Other Jurisdiction of Incorporation)   (Commission File Number)   (IRS Employer Identification No.)   1915 Rexford Road , Charlotte , North Carolina   28211 (Address of Principal Executive Offices)   (Zip Code) Registrant’s Telephone Number, Including Area Code: (704) 366-7000 Not Applicable (Former Name or Former Address, if Changed Since Last Report)     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock, par value $0.40 per share   NUE   New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company  ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐       Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. (b) On February 27, 2026, Daniel R. Needham, Executive Vice President of Commercial at Nucor Corporation (the Company), notified the Company’s Board of Directors that he will be retiring from the Company effective June 20, 2026. Mr. Needham, 60, joined the Company in 2000 and has been an Executive Vice President since 2021. His decision to retire is voluntary and in accordance with the Company’s succession planning. A copy of the news release announcing Mr. Needham’s retirement is attached hereto as Exhibit 99.1 and is incorporated herein by reference.   Item 9.01. Financial Statements and Exhibits.   (d) Exhibits   99.1    News Release of Nucor Corporation dated March 3, 2026. 104    Cover Page from this Current Report on Form 8-K, formatted in Inline XBRL SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       NUCOR CORPORATION Date: March 3, 2026     By:   /s/ John L. Sullivan       John L. Sullivan       Chief Financial Officer, Treasurer and Executive Vice President