Steel Dynamics Inc

STLD

Basic MaterialsNMS$25.3B

STLD SEC filings last scanned 13 May 2026, 23:09 UTC

CEO Timeline

Mark D. MillettCurrent

Jan 2012 — Present(14y 4mo)

Mark D. Millett was appointed President and Chief Executive Officer of Steel Dynamics, Inc., effective January 1, 2012, succeeding retiring co-founder Keith E. Busse.

1 source filing — click to expand

Keith BusseManually reviewed

Jan 1993 — Dec 2011(18y 11mo)

Keith Busse was appointed President and CEO of the combined Steel Dynamics Inc. and Roanoke Steel entity following the merger, continuing his role as President and CEO of Steel Dynamics Inc.

Keith E. Busse retired as Chief Executive Officer of Steel Dynamics, Inc. at the close of business on December 31, 2011, after serving as the company's only CEO since its inception in 1993.

2 source filings — click to expand