Sijbrandij Sytse Insider Trading Activity
Sijbrandij Sytse has been net-selling over the last 12 months with 0 purchases and 18 sales across 1 company.
GTLB is the most-traded position with 18 trades. The largest single transaction was a sale of GTLB for $4.0M on Sep 15, 2025.
Performance Scorecard
Forward stock performance after each transaction by Sijbrandij Sytse. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +4.0% | 59% | 22 |
| 90 days | — | +13.4% | 75% | 20 |
| 120 days | — | +22.5% | 79% | 19 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersGTLB · Gitlab Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 18, 2026 | GTLB | Sell | 10,792 | $24.09 | $260K | −0.1% | Director | |
May 18, 2026 | GTLB | Sell | 105,408 | $24.93 | $2.6M | −0.7% | Director | |
Apr 15, 2026 | GTLB | Sell | 116,200 | $20.77 | $2.4M | −100.0% | Director | |
Feb 17, 2026 | GTLB | Sell | 51,300 | $28.36 | $1.5M | −94.5% | Director | |
Feb 17, 2026 | GTLB | Sell | 3,000 | $29.18 | $88K | −100.0% | Director | |
Jan 14, 2026 | GTLB | Sell | 44,249 | $35.85 | $1.6M | −81.5% | Director | |
Jan 14, 2026 | GTLB | Sell | 10,051 | $36.43 | $366K | −100.0% | Director | |
Dec 15, 2025 | GTLB | Sell | 53,600 | $38.94 | $2.1M | −98.7% | Director | |
Dec 15, 2025 | GTLB | Sell | 700 | $39.60 | $28K | −100.0% | Director | |
Nov 17, 2025 | GTLB | Sell | 73,941 | $42.98 | $3.2M | −68.1% | Director | |
Nov 17, 2025 | GTLB | Sell | 34,659 | $43.59 | $1.5M | −100.0% | Director | |
Oct 15, 2025 | GTLB | Sell | 76,892 | $44.10 | $3.4M | −70.8% | Director | |
Oct 15, 2025 | GTLB | Sell | 31,708 | $44.75 | $1.4M | −100.0% | Director | |
Sep 15, 2025 | GTLB | Sell | 79,474 | $50.02 | $4.0M | −73.2% | Director | |
Sep 15, 2025 | GTLB | Sell | 29,126 | $50.45 | $1.5M | −100.0% | Director | |
Aug 18, 2025 | GTLB | Sell | 32,258 | $44.32 | $1.4M | −29.7% | Director | |
Aug 18, 2025 | GTLB | Sell | 69,929 | $45.47 | $3.2M | −91.6% | Director | |
Aug 18, 2025 | GTLB | Sell | 6,413 | $45.98 | $295K | −100.0% | Director | |
Jul 15, 2025 | GTLB | Sell | 96,084 | $43.24 | $4.2M | −88.5% | Director | |
Jul 15, 2025 | GTLB | Sell | 12,516 | $44.06 | $551K | −100.0% | Director | |
Jun 16, 2025 | GTLB | Sell | 84,608 | $41.25 | $3.5M | −77.9% | Director | |
Jun 16, 2025 | GTLB | Sell | 23,992 | $42.11 | $1.0M | −100.0% | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| GTLB | Gitlab Inc. | 22 | $40.0M |
Other insiders at Gitlab Inc.
5 other tracked filers at GTLB.