MARK W SHEAHAN
CIK 1190815 · President and CEO · last filed 2026-05-11
MARK W SHEAHAN is a President and CEO who has filed 43 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for TNC, was dated May 11, 2026. Across all open-market trades the lifetime net is −$25.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.4M 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.
$9.37M
2
43
-$25.51M
Holdings By Company
Recent Filings
43 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-11 | TNC | Grant (A) | +1,490 | $0 | EDGAR |
| 2026-02-17 | GGG | Grant (A) | — | $0 | EDGAR |
| 2026-02-02 | GGG | Mixed | +23,291 | -$1.98M | EDGAR |
| 2025-05-08 | TNC | Grant (A) | +1,815 | $0 | EDGAR |
| 2025-02-18 | GGG | Grant (A) | — | $0 | EDGAR |
| 2025-01-21 | GGG | Mixed | +16,862 | -$1.41M | EDGAR |
| 2024-05-17 | TNC | Grant (A) | +1,043 | $0 | EDGAR |
| 2024-02-20 | GGG | Grant (A) | — | $0 | EDGAR |
| 2024-01-08 | GGG | Mixed | +15,235 | $1.77M | EDGAR |
| 2024-01-08 | GGG | Mixed | +15,235 | -$1.25M | EDGAR |