Core Viewpoint - Nucor Corporation has announced the promotion of Jack Sullivan to Chief Financial Officer, Treasurer, and Executive Vice President, effective March 1, 2026, succeeding Steve Laxton, who has been promoted to President and Chief Operating Officer [1]. Group 1: Leadership Changes - Jack Sullivan, who has been with Nucor since 2022, will take on the role of CFO after serving as Vice President, Treasurer, and General Manager of Investor Relations [1]. - Steve Laxton, the outgoing CFO, will continue his leadership as President and Chief Operating Officer [1]. Group 2: Background of Jack Sullivan - Jack Sullivan has a diverse background, having worked at Duke Energy for 13 years in various roles related to treasury, corporate development, and investor relations [1]. - Prior to his tenure at Duke Energy, he spent nine years in corporate and investment banking at Bank of America [1]. - Sullivan holds a Bachelor of Arts degree from the University of North Carolina at Chapel Hill and an MBA from Wake Forest University [1]. Group 3: Company Overview - Nucor Corporation is a leading manufacturer of steel and steel products, with operations in the United States, Canada, and Mexico [1]. - The company produces a wide range of products, including carbon and alloy steel, structural tubing, and various steel components [1]. - Nucor is recognized as North America's largest recycler, also engaging in the brokerage of ferrous and nonferrous metals [1].

Core Viewpoint - Nucor experienced a cybersecurity incident that led to the temporary shutdown of some production operations as a precautionary measure [1][3]. Group 1: Incident Details - The company discovered unauthorized third-party access to certain information technology systems [1]. - Nucor is actively investigating the incident with the help of external cybersecurity experts and has notified federal law enforcement [5]. - The specific production operations that were shut down have not been disclosed, but the company is working to restore them [1][3]. Group 2: Company Profile - Nucor is considered the largest and most diversified steel and steel products producer in North America, manufacturing products such as bars, beams, electrical conduit, girders, and fasteners [5]. - The company's facilities are primarily located across North America [3].