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AC

Andrew Combs

PRLD
CHIEF CHEMISTRY OFFICER · PRELUDE THERAPEUTICS INC · CIK 0001825005
FILING MIX · LIFETIME92%/8%
BUYS
12
SELLS
1
TOTAL VALUE
$336.8K
COMPANIES
1
ACTIVE SINCE
Sep 2020
HOLDINGS NOW
230,000
AVG SELL PX
TRADE KIND
SHOWING 13 / 13
Trades · vs SPY
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Performance · forward returns vs SPY
6 backtested trades · 8 horizons · 3 pending
Forward-return performance of every backtestable P/S trade by Andrew Combs, 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
7d6+83.33%+12.21%-0.67%+12.89%+12.63%
14d6+83.33%+7.85%-0.37%+8.22%+4.95%
30d6+33.33%-4.49%-0.12%-4.36%-13.97%
60d6+33.33%+0.43%+0.75%-0.32%-11.72%
90d6+33.33%+9.21%-1.80%+11.01%-25.41%
180d6+33.33%-18.05%+0.50%-18.55%-32.97%
1y6+66.67%+67.00%+8.86%+58.14%+11.86%
2y6(3 pending)+0.00%-70.95%+7.13%-78.09%-73.18%
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
PRLD · 230,000 shares · as of Feb 4, 2026
0120,031240,062360,092480,123202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 12 buys / 1 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
PRLD
PRELUDE THERAPEUTICS INC
PURCHASEGRANT
Stock grant
230,000230,000Feb 4, 2026Feb 5, 2026View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
Chief Chemistry Officer
100,000$0.69$69.3K480,123Mar 25, 2025Mar 27, 2025View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASEGRANT
Stock grant
175,000175,000Feb 4, 2025Feb 5, 2025View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
Chief Chemistry Officer
60,000$1.37$82.0K377,623Dec 23, 2024Dec 26, 2024View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
Chief Chemistry Officer
3,075$1.15$3.5K317,623Dec 20, 2024Dec 26, 2024View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASEGRANT
Stock grant
135,000135,000Feb 7, 2023Feb 9, 2023View →
PRLD
PRELUDE THERAPEUTICS INC
SALE
EVP, Head of Chemistry
36,06250,397Apr 1, 2022Apr 4, 2022View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
EVP, Head of Chemistry
36,062$1.89$68.2K304,442Mar 31, 2022Apr 4, 2022View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASEGRANT
Stock grant
100,000100,000Feb 15, 2022Feb 17, 2022View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
EVP, Head of Chemistry
4,000$11.60$46.4K268,380Dec 14, 2021Dec 15, 2021View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
EVP, Head of Chemistry
4,000$12.12$48.5K264,380Dec 13, 2021Dec 15, 2021View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASEGRANT
Stock grant
95,00095,000Jul 20, 2021Jul 22, 2021View →
PRLD
PRELUDE THERAPEUTICS INC
PURCHASE
EVP, Head of Chemistry
1,000$19.00$19.0K260,380Sep 29, 2020Sep 29, 2020View →
Other insiders · PRLD
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About this filer
CIK 0001825005
ROLE
Chief Chemistry Officer
PRIMARY
PRLD
COMPANIES
1
ACTIVE SINCE
Sep 2020
MARKETPEEL · /INSIDER/0001825005DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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