Mark D. Millett

Companies

• Steel DynamicsChair Sep 7, 2021 to now¹
• Steel DynamicsChief executive officer Feb 3, 2012 to now²
• Steel DynamicsPresident May 24, 2011 to Feb 28, 2023³
• Steel DynamicsBoard member Feb 3, 2006 to Nov 23, 2021⁴
• Steel DynamicsChief operating officer May 24, 2011 to Nov 23, 2011³
• Steel DynamicsVice President Feb 3, 2006 to Sep 1, 2011⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Steel Dynamics STLD3,016,401 shares⁵$749.5M at $248.46Jul 28, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 28, 2026Gift 300 shares of Steel Dynamics⁵
• Mar 13, 2026Shares withheld for tax 20,625 shares at $182.19 of Steel Dynamics⁶
• Mar 13, 2026Granted 46,422 shares of Steel Dynamics⁶
• Feb 24, 2026Shares withheld for tax 5,153 shares at $196.01 of Steel Dynamics⁷
• Feb 23, 2026Shares withheld for tax 2,934 shares at $193.39 of Steel Dynamics⁷
• Feb 23, 2026Shares withheld for tax 2,928 shares at $193.39 of Steel Dynamics⁷
• Feb 20, 2026Granted 12,662 shares of Steel Dynamics⁸
• Nov 21, 2025Shares withheld for tax 253 shares at $153.11 of Steel Dynamics⁹
• Nov 21, 2025Granted 569 shares of Steel Dynamics⁹
• May 19, 2025Gift 37,000 shares of Steel Dynamics¹⁰
• May 9, 2025Gift 500 shares of Steel Dynamics¹¹
• Mar 14, 2025Shares withheld for tax 36,104 shares at $119.40 of Steel Dynamics¹²
• Mar 14, 2025Granted 81,171 shares of Steel Dynamics¹²
• Feb 25, 2025Shares withheld for tax 3,931 shares at $133.15 of Steel Dynamics¹³
• Feb 24, 2025Shares withheld for tax 5,159 shares at $130.71 of Steel Dynamics¹³
• Feb 22, 2025Shares withheld for tax 2,937 shares at $130.71 of Steel Dynamics¹³
• Feb 20, 2025Granted 17,645 shares of Steel Dynamics¹⁴
• Nov 21, 2024Shares withheld for tax 268 shares at $144.04 of Steel Dynamics¹⁵
• Nov 21, 2024Granted 604 shares of Steel Dynamics¹⁵
• May 17, 2024Gift 550 shares of Steel Dynamics¹⁶
• Mar 21, 2024Returned to company 34,589 shares at $142.72 of Steel Dynamics¹⁷
• Mar 21, 2024Exercised options 34,589 shares at $42.83 of Steel Dynamics¹⁷
• Mar 21, 2024Returned to company 16,426 shares at $142.72 of Steel Dynamics¹⁷
• Mar 21, 2024Exercised options 16,426 shares at $29.13 of Steel Dynamics¹⁷
• Mar 15, 2024Shares withheld for tax 53,242 shares at $131.48 of Steel Dynamics¹⁸