MarketPeel
Insider Trading Intelligence
ML

Mgc Venture Partners 2013 Gp, Llc

CSTL
10% OWNER · CASTLE BIOSCIENCES INC · CIK 0001783292
FILING MIX · LIFETIME0%/100%
BUYS
0
SELLS
5
TOTAL VALUE
$1.21M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
1,472,137
AVG SELL PX
$36.78
TRADE KIND
SHOWING 5 / 5
Trades · vs SPY
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Performance · forward returns vs SPY
5 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by Mgc Venture Partners 2013 Gp, Llc, 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
7d5+40.00%+1.61%+3.11%-1.50%-1.92%
14d5+0.00%+3.42%+5.81%-2.39%-3.68%
30d5+0.00%+3.05%+6.46%-3.41%-3.73%
60d5+0.00%+15.31%+11.73%+3.58%+2.85%
90d5+0.00%+13.24%+18.04%-4.81%-4.94%
180d5+0.00%+35.23%+25.55%+9.69%+11.96%
1y5+0.00%+44.56%+46.23%-1.66%-2.40%
2y5+100.00%-47.16%+43.28%-90.44%-89.55%
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
CSTL · 1,472,137 shares · as of May 15, 2020
0372,917745,8341,118,7511,491,668SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
FLOW · 0 buys / 5 sellsCOVERAGE · 1 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILED
CSTL
CASTLE BIOSCIENCES INC
SALE
8,117$37.28$302.6K1,464,020May 15, 2020May 19, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
13,799$36.39$502.1K1,472,137May 15, 2020May 19, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
1,131$36.08$40.8K1,485,936May 13, 2020May 14, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
5,187$36.61$189.9K1,491,668May 12, 2020May 14, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
4,601$37.46$172.4K1,487,067May 12, 2020May 14, 2020
Other insiders · CSTL
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About this filer
CIK 0001783292
ROLE
10% Owner
PRIMARY
CSTL
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001783292DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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