MILLETT MARK D - Insider Non-Derivative Transactions at STEEL DYNAMICS INC (STLD) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Nov 21, 2025, MILLETT MARK D's relationship to STEEL DYNAMICS INC (STLD) is Director,Officer (Chairman and CEO), and currently has 2,989,510 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other STLD insiders.

Related Topics: SEC Topic List.
Data Source: SEC.
MILLETT MARK D - Insider Non-Derivative Transactions of STLD Common Stock
MILLETT MARK D - Insider Non-Derivative Transactions at STLD
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Date Transaction No. of Shares Price Per Share Shares Owned After Transactions
Nov 22, 2025 F -- (Common Stock) 253 153.11 2989257
Nov 22, 2025 Acquisition -- (Common Stock) 569 0 2989510
May 20, 2025 G -- (Common Stock) 37000 0 2988941
May 10, 2025 G -- (Common Stock) 500 0 3025941
Mar 15, 2025 F -- (Common Stock) 36104 119.4 3026441
Mar 15, 2025 Acquisition -- (Common Stock) 81171 0 3062545
Feb 26, 2025 F -- (Common Stock) 3931 133.15 2981374
Feb 25, 2025 F -- (Common Stock) 5159 130.71 2985305
Feb 23, 2025 F -- (Common Stock) 2937 130.71 2990464
Feb 21, 2025 Acquisition -- (Common Stock) 17645 0 2993401
Nov 22, 2024 F -- (Common Stock) 268 144.04 2975756
Nov 22, 2024 Acquisition -- (Common Stock) 604 0 2976024
May 18, 2024 G -- (Common Stock) 550 0 2975420
Mar 22, 2024 Disposition -- (Common Stock) 34589 142.72 2975970
Mar 22, 2024 Disposition -- (Common Stock) 16426 142.72 2975970
Mar 22, 2024 M -- (Common Stock) 16426 29.13 2992396
Mar 22, 2024 M -- (Common Stock) 34589 42.83 3010559
Mar 16, 2024 F -- (Common Stock) 53242 131.48 2975970
Mar 16, 2024 Acquisition -- (Common Stock) 119566 0 3029212
Feb 26, 2024 F -- (Common Stock) 3936 127.01 2909646
Feb 25, 2024 F -- (Common Stock) 5165 127.01 2913582
Feb 23, 2024 Acquisition -- (Common Stock) 19771 0 2918747
Feb 2, 2024 F -- (Common Stock) 3716 120.69 2898976
Nov 22, 2023 F -- (Common Stock) 347 111.86 2902692
Nov 22, 2023 Acquisition -- (Common Stock) 778 0 2903039
Jun 10, 2023 G -- (Common Stock) 650 0 2902261
Apr 7, 2023 G -- (Common Stock) 109800 0 0
Apr 1, 2023 G -- (Common Stock) 8900 0 109800
Apr 1, 2023 G -- (Common Stock) 8900 0 2902911
Mar 16, 2023 F -- (Common Stock) 57814 120.36 2894011
Mar 16, 2023 Acquisition -- (Common Stock) 129542 0 2951825
Feb 26, 2023 F -- (Common Stock) 3944 118.5 2822283
Feb 23, 2023 Acquisition -- (Common Stock) 19815 0 2826227
Feb 2, 2023 F -- (Common Stock) 9758 120.64 2806412