Stone Stephen R.
CIK 2064783 · PRESIDENT AND CEO · last filed 2026-04-29
Stone Stephen R. is a PRESIDENT AND CEO who has filed 4 SEC Form 4 insider transactions across 1 company since 2025. The most recent filing, for COSO, was dated Apr 29, 2026. Across all open-market trades the lifetime net is +$52.1K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.6M 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.
$3.61M
1
4
$52.1K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| COSO | PRESIDENT AND CEO | 137,193 | $26.33 | $3.61M | $52.1K | 4 | 2026-04-29 |
Recent Filings
4 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-29 | COSO | Mixed | +11,978 | -$128.5K | EDGAR |
| 2026-03-09 | COSO | Buy (P) | +200 | $4.8K | EDGAR |
| 2026-02-13 | COSO | Grant (A) | — | $0 | EDGAR |
| 2025-07-07 | COSO | Buy (P) | +2,200 | $47.3K | EDGAR |