Mark Chalmers
CIK 1678867 · CEO · last filed 2026-01-29
Mark Chalmers is a CEO who has filed 29 SEC Form 4 insider transactions across 2 companies since 2016. The most recent filing, for UUUU, was dated Jan 29, 2026. Across all open-market trades the lifetime net is −$2.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $13.7M 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.
$13.68M
2
29
-$2.18M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| UUUU | CEO | 909,321 | $15.04 | $13.68M | -$2.24M | 16 | 2026-01-29 |
| ENERGY FUELS INC (UUUU.WS) Delisted | President & CEO | 563,561 | $5.84 | $3.29M | $61.4K | 13 | 2021-01-28 |
Recent Filings
29 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-29 | UUUU | Mixed | −21,118 | -$1.44M | EDGAR |
| 2025-12-01 | UUUU | Grant (A) | +19,096 | $0 | EDGAR |
| 2025-11-20 | UUUU | Sell (S) | −150,000 | -$2.34M | EDGAR |
| 2025-01-31 | UUUU | Grant (A) | +166,042 | $0 | EDGAR |
| 2025-01-29 | UUUU | Tax (F) | −45,372 | -$234.6K | EDGAR |
| 2024-05-07 | UUUU | Buy (P) | +16,838 | $98.7K | EDGAR |
| 2024-01-29 | UUUU | Mixed | +41,404 | -$342.0K | EDGAR |
| 2023-11-17 | UUUU | Mixed | +91,379 | $755.7K | EDGAR |
| 2023-05-12 | UUUU | Mixed | +141,042 | $921.6K | EDGAR |
| 2023-04-04 | UUUU | Grant (A) | — | $0 | EDGAR |