Howell Stephen Mitchell Jr.
CIK 2025334 · COO · last filed 2026-01-05
Howell Stephen Mitchell Jr. is a COO who has filed 4 SEC Form 4 insider transactions across 1 company since 2024. The most recent filing, for RIOT, was dated Jan 5, 2026. Current disclosed insider exposure totals $41.4M 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.
$41.39M
1
4
$0
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RIOT | COO | 1,636,102 | $25.30 | $41.39M | $0 | 4 | 2026-01-05 |
Recent Filings
4 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-05 | RIOT | Mixed | +562,466 | -$373.5K | EDGAR |
| 2025-10-10 | RIOT | Tax (F) | −20,345 | -$229.3K | EDGAR |
| 2025-07-03 | RIOT | Mixed | +645,138 | -$229.3K | EDGAR |
| 2024-07-03 | RIOT | Mixed | +373,696 | -$31.7K | EDGAR |