Sytse Sijbrandij
CIK 1886022 · View on SEC EDGAR ↗
First SEC filing: Oct. 13, 2021 · Latest: June 17, 2026
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- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2026 | GTLB | S 10b5-1 | 13,565 | $28.83 | $391,079 | 14,902,051 Indirect | -0.09% | Disposed | 41.8% (price as of 2026-08-21) |
| June 15, 2026 | GTLB | S 10b5-1 | 102,635 | $28.39 | $2,913,808 | 14,915,616 Indirect | -0.68% | Disposed | 44.0% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 23, 2024 | GTLB | Class B Common Stock | Class A Common Stock (363,487) | — | — | 363,487 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 13, 2021 | GTLB | Class B Common Stock→ Class A Common Stock (24,190,901) | 24,190,901 | Indirect |
| Oct. 13, 2021 | GTLB | Stock Option (Right to buy Class B Common Stock)→ Class B Common Stock (1,500,000) | 1,500,000 | Direct |
| Oct. 13, 2021 | GTLB | Restricted Stock Units→ Class B Common Stock (3,000,000) | 3,000,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2022 | $0 | — | — | — | — | — | — | $18,497,700 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.