Tomas Navratil
CIK 1920053 · CHIEF DEVELOPMENT OFFICER · last filed 2026-07-08
"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
$14.14M
Companies
1
Total Filings
56
Lifetime Open-Market Net
-$1.65M
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 |
|---|---|---|---|---|---|---|---|
| GKOS | CHIEF DEVELOPMENT OFFICER | 87,634 | $161.34 | $14.14M | -$1.65M | 49 | 2026-07-08 |
Recent Filings · Page 2 of 6
56 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 |
|---|---|---|---|---|---|
| 2026-03-25 | GKOS | Tax (F) | −5,174 | -$548.7K | EDGAR |
| 2026-03-19 | GKOS | Mixed | −1,989 | -$195.9K | EDGAR |
| 2026-03-17 | GKOS | Tax (F) | −1,074 | -$104.2K | EDGAR |
| 2026-03-16 | GKOS | Notice (144) | −1,031 | -$101.0K | EDGAR |
| 2026-03-09 | GKOS | Tax (F) | −361 | -$40.5K | EDGAR |
| 2026-02-26 | GKOS | Tax (F) | −396 | -$47.2K | EDGAR |
| 2025-12-31 | GKOS | Tax (F) | −510 | -$58.3K | EDGAR |
| 2025-12-15 | GKOS | Grant (A) | +2,054 | $0 | EDGAR |
| 2025-09-24 | GKOS | Mixed | −1,000 | -$84.4K | EDGAR |
| 2025-09-22 | GKOS | Notice (144) | −517 | -$43.5K | 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.