William S. Jr. Corey
CIK 1815639 · last filed 2026-05-08
William S. Jr. Corey is a corporate insider who has filed 12 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing, for STC, was dated May 8, 2026. Across all open-market trades the lifetime net is +$28.5K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $745.7K 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.
$745.7K
2
12
$28.5K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| STC | Director | 11,433 | $65.22 | $745.7K | $0 | 7 | 2026-05-08 |
| GSE SYSTEMS INC (GVP) Delisted | Director | 264,216 | $4.59 | $1.21M | $28.5K | 5 | 2023-06-14 |
Recent Filings
12 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-08 | STC | Grant (A) | +1,791 | $0 | EDGAR |
| 2025-05-09 | STC | Grant (A) | +1,706 | $0 | EDGAR |
| 2024-05-09 | STC | Grant (A) | +1,362 | $0 | EDGAR |
| 2023-06-14 | GSE SYSTEMS INC (GVP) Delisted | Grant (A) | +136,090 | $0 | EDGAR |
| 2023-05-18 | STC | Grant (A) | +1,948 | $0 | EDGAR |
| 2022-06-16 | GSE SYSTEMS INC (GVP) Delisted | Grant (A) | +46,560 | $0 | EDGAR |
| 2022-05-27 | STC | Grant (A) | +1,509 | $0 | EDGAR |
| 2021-06-16 | GSE SYSTEMS INC (GVP) Delisted | Grant (A) | +31,250 | $0 | EDGAR |
| 2021-06-01 | STC | Grant (A) | +1,415 | $0 | EDGAR |
| 2020-12-10 | GSE SYSTEMS INC (GVP) Delisted | Buy (P) | +25,000 | $28.5K | EDGAR |