Insiders who reported open-market trades in the last 12 months at the companies Mark D. Millett files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Mark D. Millett is a corporate insider, tracked as Chairman and CEO, Director of STEEL DYNAMICS INC (STLD). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Mark D. Millett submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Mark D. Millett is Chairman and CEO, Director of STEEL DYNAMICS INC (STLD). 8 SEC Form 4 filings on record going back to 2024, most recently on 28 July 2026.
Recent transactions
13
The latest 13 SEC Form 4 transactions reported by Mark D. Millett.
InsiderAlpha's records for Mark D. Millett go back to 2024: 8 primary Form 4 filings, an average of 2.7 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
