MarketPeel
Insider Trading Intelligence
SL

Sofinnova Healthquest Partners, L.p.

CSTL
10% OWNER · CASTLE BIOSCIENCES INC · CIK 0001579382
FILING MIX · LIFETIME0%/100%
BUYS
0
SELLS
10
TOTAL VALUE
$21.90M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
1,533,577
AVG SELL PX
$33.70
TRADE KIND
SHOWING 10 / 10
Trades · vs SPY
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Performance · forward returns vs SPY
10 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by Sofinnova Healthquest Partners, L.p., 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
7d10+60.00%-1.32%+0.76%-2.08%-3.54%
14d10+20.00%+0.93%+1.04%-0.11%-1.75%
30d10+40.00%-2.94%-5.99%+3.05%-0.13%
60d10+60.00%+1.69%-7.35%+9.05%+9.79%
90d10+30.00%+5.19%-0.61%+5.80%+4.63%
180d10+0.00%+30.70%+10.32%+20.37%+24.86%
1y10+0.00%+114.26%+28.32%+85.95%+99.47%
2y10+40.00%+0.17%+39.59%-39.42%-13.12%
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 · 1,533,577 shares · as of May 12, 2020
0452,144904,2891,356,4331,808,577SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
FLOW · 0 buys / 10 sellsCOVERAGE · 2 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILED
CSTL
CASTLE BIOSCIENCES INC
SALE
250,000$34.50$8.62M1,433,577May 12, 2020May 14, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
50,000$33.04$1.65M1,633,577May 12, 2020May 19, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
100,000$35.47$3.55M1,433,577May 12, 2020May 19, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
100,000$34.25$3.43M1,533,577May 12, 2020May 19, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
25,000$32.03$800.8K1,683,577Feb 19, 2020Feb 21, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
25,000$32.01$800.3K1,708,577Feb 13, 2020Feb 14, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
25,000$31.03$775.8K1,733,577Feb 6, 2020Feb 10, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
25,000$31.06$776.5K1,758,577Feb 3, 2020Feb 4, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
25,000$30.02$750.4K1,783,577Jan 31, 2020Feb 4, 2020
CSTL
CASTLE BIOSCIENCES INC
SALE
25,000$30.02$750.5K1,808,577Jan 28, 2020Jan 30, 2020
Other insiders · CSTL
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About this filer
CIK 0001579382
ROLE
10% Owner
PRIMARY
CSTL
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001579382DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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