SHEAHAN MARK W
Director · Officer · TNC, GGG
As of 2026-09-16, SHEAHAN MARK W has 10 Form 4 transactions on record across 2 companies — 5 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|
10 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-05-07 | TNC | Award / grant | 1,490 | 4,348 | Form 4 |
| 2026-02-13 | GGG | Award / grant | 194,650 | 194,650 | Form 4 |
| 2026-01-29 | GGG | Withheld for tax | 40,219 | 119,009 | Form 4 |
| 2026-01-29 | GGG | Option exercise | 63,510 | 159,228 | Form 4 |
| 2026-01-29 | GGG | Option exercise | 63,510 | 0 | Form 4 |
| 2025-05-06 | TNC | Award / grant | 1,815 | 2,858 | Form 4 |
| 2025-02-14 | GGG | Award / grant | 204,910 | 204,910 | Form 4 |
| 2025-01-17 | GGG | Withheld for tax | 30,268 | 95,444 | Form 4 |
| 2025-01-17 | GGG | Option exercise | 47,130 | 125,712 | Form 4 |
| 2025-01-17 | GGG | Option exercise | 47,130 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.