MARK D MILLETT
CIK 1195949 · Chairman and CEO · last filed 2026-03-13
MARK D MILLETT is a Chairman and CEO who has filed 106 SEC Form 4 insider transactions across 1 company since 2007. The most recent filing, for STLD, was dated Mar 13, 2026. Across all open-market trades the lifetime net is −$27.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $858.8M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$858.83M
1
106
-$27.39M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| STLD | Chairman and CEO | 3,037,326 | $282.76 | $858.83M | -$27.39M | 106 | 2026-03-13 |
Recent Filings
106 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-13 | STLD | Mixed | +25,797 | -$3.76M | EDGAR |
| 2026-02-25 | STLD | Tax (F) | −11,015 | -$2.14M | EDGAR |
| 2026-02-24 | STLD | Grant (A) | +12,662 | $0 | EDGAR |
| 2025-11-25 | STLD | Mixed | +316 | -$38.7K | EDGAR |
| 2025-05-20 | STLD | Gift (G) | −37,000 | $0 | EDGAR |
| 2025-05-14 | STLD | Gift (G) | −500 | $0 | EDGAR |
| 2025-03-14 | STLD | Mixed | +45,067 | -$4.31M | EDGAR |
| 2025-02-25 | STLD | Tax (F) | −12,027 | -$1.58M | EDGAR |
| 2025-02-24 | STLD | Grant (A) | +17,645 | $0 | EDGAR |
| 2024-11-22 | STLD | Mixed | +336 | -$38.6K | EDGAR |