Nucor names new CFO

Nucor Corp., Charlotte, North Carolina, has promoted John L. (Jack) Sullivan from vice president, treasurer and general manager of investor relations to chief financial officer (CFO), treasurer and executive vice president effective March 1, 2026.

Sullivan replaces Steve Laxton as CFO of the electric arc furnace steelmaking and metals recycling company after Laxton was promoted to president and chief operating officer effective this Jan. 1.

Nucor says the 52-year-old Sullivan began his career with the company in 2022 as its general manager of investor relations and was promoted to the additional roles in 2025.

Before joining Nucor, Sullivan worked for North Carolina-based Duke Energy and in the investment banking department of Bank of America.

“Jack will be a great addition to the executive leadership team,” says Leon Topalian, Nucor’s board chair and CEO. “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.”

Adds Topalian, “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.”

Nucor makes recycled-content steel, downstream steel products and operates metal recycling facilities, predominantly in the United States with a presence in Canada and Mexico. In the recycling sector, Nucor owns Cincinnati-based David J. Joseph Co. (DJJ) and it describes itself as North America’s largest recycler.