Mark D. Millett serves as Executive at STEEL DYNAMICS INC, where they oversee executive responsibilities. Since joining the company, Mark D. Millett has executed 166 insider transactions totaling $33.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 20, 2026 involved receiving (via award) 12,662 shares valued at $0.
Mark D. Millett currently holds 3,001,919 shares of STEEL DYNAMICS INC (STLD), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark D. Millett has been a net seller of STLD stock. They have purchased $100.6K and sold $33.8M worth of shares.
Mark D. Millett's most recent insider trade was on Feb 20, 2026, when they sold 12,662 shares at $0.00 per share.
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| $153.11 |
| Discretionary |
| Nov 21, 2025 | STLD | $0 | Award | 569 | $N/A | Discretionary |
| May 17, 2024 | STLD | $0 | Gift | 550 | $N/A | Discretionary |
| Mar 21, 2024 | STLD | $478.5K | Option Exercise | 16,426 | $29.13 | Discretionary |
| Mar 21, 2024 | STLD | $2.3M | Disposition | 16,426 | $142.72 | Discretionary |
| Mar 21, 2024 | STLD | $4.9M | Disposition | 34,589 | $142.72 | Discretionary |
| Mar 21, 2024 | STLD | $1.5M | Option Exercise | 34,589 | $42.83 | Discretionary |
| Mar 15, 2024 | STLD | $0 | Award | 119,566 | $N/A | Discretionary |
| Mar 15, 2024 | STLD | $7.0M | Payment | 53,242 | $131.48 | Discretionary |
| Feb 25, 2024 | STLD | $499.9K | Payment | 3,936 | $127.01 | Discretionary |
| Feb 24, 2024 | STLD | $656.0K | Payment | 5,165 | $127.01 | Discretionary |
| Feb 22, 2024 | STLD | $0 | Award | 19,771 | $N/A | Discretionary |
| Feb 1, 2024 | STLD | $448.5K | Payment | 3,716 | $120.69 | Discretionary |
| Nov 21, 2023 | STLD | $38.8K | Payment | 347 | $111.86 | Discretionary |
| Nov 21, 2023 | STLD | $0 | Award | 778 | $N/A | Discretionary |
| Jun 9, 2023 | STLD | $0 | Gift | 650 | $N/A | Discretionary |
| Apr 6, 2023 | STLD | $0 | Gift | 109,800 | $N/A | Discretionary |
| Mar 31, 2023 | STLD | $0 | Gift | 8,900 | $N/A | Discretionary |
| Mar 31, 2023 | STLD | $0 | Gift | 8,900 | $N/A | Discretionary |
| Mar 15, 2023 | STLD | $0 | Award | 129,542 | $N/A | Discretionary |
| Mar 15, 2023 | STLD | $7.0M | Payment | 57,814 | $120.36 | Discretionary |
| Feb 25, 2023 | STLD | $467.4K | Payment | 3,944 | $118.50 | Discretionary |
| Feb 22, 2023 | STLD | $0 | Award | 19,815 | $N/A | Discretionary |
| Feb 1, 2023 | STLD | $1.2M | Payment | 9,758 | $120.64 | Discretionary |
| Nov 21, 2022 | STLD | $38.8K | Payment | 386 | $100.64 | Discretionary |
| Nov 21, 2022 | STLD | $0 | Award | 865 | $N/A | Discretionary |
| Oct 27, 2022 | STLD | $2.2M | Option Exercise | 73,998 | $29.13 | Discretionary |
| Oct 27, 2022 | STLD | $4.5M | Disposition | 46,248 | $98.04 | Discretionary |
| Oct 27, 2022 | STLD | $4.2M | Disposition | 43,239 | $98.04 | Discretionary |