MarketPeel
Insider Trading Intelligence
DH

David J. Henshall

GTLB
DIRECTOR · GITLAB INC. · CIK 0001176008
FILING MIX · LIFETIME100%/0%
BUYS
8
SELLS
0
TOTAL VALUE
$486.0K
COMPANIES
2
ACTIVE SINCE
Sep 2024
HOLDINGS NOW
40,673
AVG SELL PX
TRADE KIND
SHOWING 8 / 8
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by David J. Henshall, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d1+100.00%+5.13%+0.98%+4.15%+4.15%
14d1+100.00%+11.64%+1.28%+10.37%+10.37%
30d1+100.00%+12.57%+1.83%+10.75%+10.75%
60d1+100.00%+4.70%+5.01%-0.32%-0.32%
90d1+100.00%+17.52%+5.20%+12.32%+12.32%
180d1+0.00%-7.18%+7.69%-14.87%-14.87%
1y1(1 pending)
2y1(1 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
GTLB · 17,879 shares · as of Jun 17, 2026
04,4708,94013,40917,8792026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 8 buys / 0 sellsCOVERAGE · 8 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GTLB
GITLAB INC.
PURCHASEGRANT
Stock grant
7,55517,879Jun 17, 2026Jun 22, 2026View →
BL
BLACKLINE, INC.
PURCHASEGRANT
Stock grant
6,41622,794May 7, 2026May 8, 2026View →
BL
BLACKLINE, INC.
PURCHASE
10,000$48.60$486.0K16,378Aug 8, 2025Aug 11, 2025View →
GTLB
GITLAB INC.
PURCHASEGRANT
Stock grant
4,90610,324Jun 20, 2025Jun 23, 2025View →
BL
BLACKLINE, INC.
PURCHASEGRANT
Stock grant
3,7766,378May 8, 2025May 9, 2025View →
GTLB
GITLAB INC.
PURCHASEGRANT
Stock grant
4,4444,444Mar 3, 2025Mar 4, 2025View →
GTLB
GITLAB INC.
PURCHASEGRANT
Stock grant
9745,418Mar 3, 2025Mar 4, 2025View →
BL
BLACKLINE, INC.
PURCHASEGRANT
Stock grant
2,6022,602Sep 23, 2024Sep 24, 2024View →
Other insiders · GTLB
Loading peer insiders…
About this filer
CIK 0001176008
ROLE
Director
PRIMARY
GTLB
COMPANIES
2
ACTIVE SINCE
Sep 2024
MARKETPEEL · /INSIDER/0001176008DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback