MarketPeel
Insider Trading Intelligence
GW

Garrett Winslow

GLTO
GENERAL COUNSEL · GALECTO, INC. · CIK 0001803773
FILING MIX · LIFETIME67%/33%
BUYS
12
SELLS
6
TOTAL VALUE
$23.5K
COMPANIES
1
ACTIVE SINCE
Jun 2021
HOLDINGS NOW
250,000
AVG SELL PX
$9.10
TRADE KIND
SHOWING 18 / 18
Trades · vs SPY
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Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 3 pending
Forward-return performance of every backtestable P/S trade by Garrett Winslow, 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
7d2+100.00%-4.01%+0.84%-4.85%-4.85%
14d2+0.00%+8.78%+0.84%+7.95%+7.95%
30d2+50.00%+7.96%+0.61%+7.36%+7.36%
60d2+50.00%+6.72%+0.99%+5.73%+5.73%
90d2+50.00%+7.21%+1.45%+5.76%+5.76%
180d2+0.00%+530.23%+9.59%+520.36%+520.36%
1y2(1 pending)+19.10%
2y2(2 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
GLTO · 250,000 shares · as of Mar 23, 2026
062,500125,000187,500250,00020222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 12 buys / 6 sellsCOVERAGE · 20 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
250,000250,000Mar 23, 2026Mar 25, 2026View →
GLTO
GALECTO, INC.
SALE
General Counsel
6801,320Jan 2, 2026Jan 6, 2026View →
GLTO
GALECTO, INC.
PURCHASE
General Counsel
6802,109Jan 2, 2026Jan 6, 2026View →
GLTO
GALECTO, INC.
SALE
General Counsel
255$21.38$5.5K1,854Jan 2, 2026Jan 6, 2026View →
GLTO
GALECTO, INC.
SALE
General Counsel
6802,000Jul 3, 2025Jul 8, 2025View →
GLTO
GALECTO, INC.
PURCHASE
General Counsel
6801,689Jul 3, 2025Jul 8, 2025View →
GLTO
GALECTO, INC.
SALE
General Counsel
260$3.39$8811,429Jul 3, 2025Jul 8, 2025View →
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
6,0006,000Jan 3, 2025Jan 7, 2025View →
GLTO
GALECTO, INC.
PURCHASE
General Counsel
1,3201,480Jan 3, 2025Jan 7, 2025View →
GLTO
GALECTO, INC.
SALE
General Counsel
471$5.60$2.6K1,009Jan 3, 2025Jan 7, 2025View →
GLTO
GALECTO, INC.
SALE
General Counsel
1,3202,680Jan 3, 2025Jan 7, 2025View →
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
15,60015,600Oct 9, 2024Oct 11, 2024View →
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
100,000100,000Jan 3, 2024Jan 5, 2024View →
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
80,00080,000Jan 4, 2023Jan 5, 2023View →
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
75,00075,000Jan 4, 2022Jan 6, 2022View →
GLTO
GALECTO, INC.
PURCHASE
General Counsel
2,000$2.48$5.0K4,000Dec 3, 2021Dec 6, 2021View →
GLTO
GALECTO, INC.
PURCHASE
General Counsel
2,000$4.80$9.6K2,000Jun 23, 2021Jun 23, 2021View →
GLTO
GALECTO, INC.
PURCHASEGRANT
Stock grant
120,000120,000Jun 15, 2021Jun 16, 2021View →
Other insiders · GLTO
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About this filer
CIK 0001803773
ROLE
General Counsel
PRIMARY
GLTO
COMPANIES
1
ACTIVE SINCE
Jun 2021
MARKETPEEL · /INSIDER/0001803773DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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