THOMAS SONDERMAN
CIK 1611597 · CEO · last filed 2026-03-18
THOMAS SONDERMAN is a CEO who has filed 51 SEC Form 4 insider transactions across 2 companies since 2014. The most recent filing shows the insider had shares withheld for taxes covering $367.8K of SKYT on Mar 18, 2026. Across all open-market trades the lifetime net is −$2.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $17.3M 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.
$17.25M
2
51
-$1.98M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SKYT | CEO | 553,244 | $31.18 | $17.25M | -$1.96M | 31 | 2026-03-18 |
| RUDOLPH TECHNOLOGIES INC (RTEC) Delisted | 20,099 | — | — | -$13.2K | 13 | 2017-07-12 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-18 | SKYT | Tax (F) | −13,201 | -$367.8K | EDGAR |
| 2026-03-17 | SKYT | Grant (A) | +50,455 | $0 | EDGAR |
| 2026-02-19 | SKYT | Tax (F) | −5,767 | -$165.9K | EDGAR |
| 2025-11-25 | SKYT | Sell (S) | −5,210 | -$69.7K | EDGAR |
| 2025-11-21 | SKYT | Notice (144) | −5,210 | -$69.7K | EDGAR |
| 2025-11-18 | SKYT | Sell (S) | −5,207 | -$88.5K | EDGAR |
| 2025-11-14 | SKYT | Notice (144) | −5,207 | -$88.5K | EDGAR |
| 2025-09-11 | SKYT | Sell (S) | −8,355 | -$88.4K | EDGAR |
| 2025-09-10 | SKYT | Notice (144) | −8,355 | -$88.4K | EDGAR |
| 2025-08-14 | SKYT | Sell (S) | −24,936 | -$305.3K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.