Nucor Corporation announces the promotion of John L. “Jack” Sullivan to Chief Financial Officer, Treasurer and Executive Vice President effective March 1, 2026. He will succeed Steve Laxton, who was promoted to President and Chief Operating Officer effective January 1, 2026.
Mr. Sullivan, 52, began his career with Nucor in 2022 as General Manager of Investor Relations and was promoted to his current role in 2025. Mr. Sullivan previously worked for Duke Energy for 13 years, holding positions of increasing responsibility across treasury, corporate development, and investor relations. Prior to joining Duke Energy, he spent nine years in corporate and investment banking at Bank of America. He holds a Bachelor of Arts degree from the University of North Carolina at Chapel Hill and a Master of Business Administration from Wake Forest University.
“Jack will be a great addition to the executive leadership team,” commented Leon Topalian, Nucor’s Chair and Chief Executive Officer. “He is an accomplished leader whose strong financial acumen and strategic insight position him well to advance Nucor’s mission of creating sustainable long‑term value for our shareholders, customers, teammates, and the communities we serve. I would also like to thank Steve Laxton, who will continue as our President and Chief Operating Officer, for his leadership as CFO during this transition period.”