Sytse Sijbrandij
CIK 1886022 · Executive Chair of the Board · last filed 2026-06-17
Sytse Sijbrandij is an Executive Chair of the Board who has filed 68 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing shows the insider sold $3.3M of GTLB on Jun 17, 2026. Across all open-market trades the lifetime net is −$693.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $742.6M 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.
$742.57M
1
68
-$693.69M
Filer Profile
268 BUSH STREET, #350
SAN FRANCISCO, CA 94104
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GTLB | Director | 14,902,051 | $49.83 | $742.57M | -$693.69M | 40 | 2026-06-17 |
Recent Filings
68 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-17 | GTLB | Sell (S) | −116,200 | -$3.30M | EDGAR |
| 2026-05-18 | GTLB | Mixed | +15,018,251 | -$2.89M | EDGAR |
| 2026-04-16 | GTLB | Mixed | — | -$2.41M | EDGAR |
| 2026-04-15 | GTLB | Notice (144) | −348,600 | -$7.00M | EDGAR |
| 2026-02-18 | GTLB | Mixed | — | -$1.54M | EDGAR |
| 2026-02-17 | GTLB | Notice (144) | −108,600 | -$3.21M | EDGAR |
| 2026-01-15 | GTLB | Mixed | — | -$1.95M | EDGAR |
| 2025-12-17 | GTLB | Mixed | — | -$2.11M | EDGAR |
| 2025-12-12 | GTLB | Gift (G) | — | $0 | EDGAR |
| 2025-11-19 | GTLB | Mixed | — | -$4.69M | 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.