Sytse Sijbrandij
CIK 1886022 · Executive Chair of the Board · last filed 2026-05-18
"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
$420.29M
Companies
1
Total Filings
39
Lifetime Open-Market Net
-$690.39M
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 |
|---|---|---|---|---|---|---|---|
| GTLB | Director | 15,123,659 | $27.79 | $420.29M | -$690.39M | 39 | 2026-05-18 |
Recent Filings · Page 2 of 4
39 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-07-17 | GTLB | Mixed | — | -$4.71M | EDGAR |
| 2025-06-18 | GTLB | Mixed | — | -$4.50M | EDGAR |
| 2025-05-15 | GTLB | Mixed | — | -$5.76M | EDGAR |
| 2025-04-16 | GTLB | Mixed | — | -$4.66M | EDGAR |
| 2025-03-19 | GTLB | Mixed | — | -$2.91M | EDGAR |
| 2025-02-19 | GTLB | Mixed | — | -$5.93M | EDGAR |
| 2025-01-16 | GTLB | Mixed | — | -$5.29M | EDGAR |
| 2024-12-31 | GTLB | Gift (G) | −363,487 | $0 | EDGAR |
| 2024-12-26 | GTLB | Conv (C) | +363,487 | $0 | EDGAR |
| 2024-12-17 | GTLB | Mixed | — | -$4.98M | EDGAR |
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.