THOMAS SONDERMAN
CIK 1611597 · CEO · last filed 2026-03-18
"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.
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Disclosed Exposure
$17.25M
Companies
2
Total Filings
51
Lifetime Open-Market Net
-$1.98M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 6
51 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-08-13 | SKYT | Notice (144) | −24,936 | -$305.3K | EDGAR |
| 2025-06-27 | SKYT | Sell (S) | −14,958 | -$150.2K | EDGAR |
| 2025-06-26 | SKYT | Notice (144) | −14,958 | -$141.8K | EDGAR |
| 2025-03-19 | SKYT | Tax (F) | −10,191 | -$85.8K | EDGAR |
| 2025-02-27 | SKYT | Tax (F) | −5,076 | -$44.9K | EDGAR |
| 2025-02-20 | SKYT | Grant (A) | +54,954 | $0 | EDGAR |
| 2024-04-24 | SKYT | Tax (F) | −2,459 | -$21.2K | EDGAR |
| 2024-03-18 | SKYT | Grant (A) | +54,386 | $0 | EDGAR |
| 2024-03-15 | SKYT | Tax (F) | −4,592 | -$46.6K | EDGAR |
| 2024-02-28 | SKYT | Tax (F) | −5,012 | -$55.4K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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.
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.