U.S. steelmaker, Nucor Corporation, announced today that John L. “Jack” Sullivan, Vice President, Treasurer and General Manager of Investor Relations, will be promoted 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.
Leon Topalian, Nucor’s Chair and Chief Executive Officer told investors, “Jack will be a great addition to the executive leadership team. 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.”
Sullivan started working at Nucor in 2022 as the general manager of investor relations and was promoted to his current position last year. He 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.
Nucor and its affiliates are manufacturers of steel and steel products, with operating facilities in the United States, Canada and Mexico. Products produced include: carbon and alloy steel — in bars, beams, sheet and plate; hollow structural section tubing; electrical conduit; steel racking; steel piling; steel joists and joist girders; steel deck; fabricated concrete reinforcing steel; cold finished steel; precision castings; steel fasteners; metal building systems; insulated metal panels; overhead doors; steel grating; wire and wire mesh; and utility structures.
By CEO NA Editorial Staff











