MarketPeel
Insider Trading Intelligence
SR

Syed Ali-aamir Rizvi

CRBU
CHIEF MEDICAL OFFICER · CARIBOU BIOSCIENCES, INC. · CIK 0001897621
FILING MIX · LIFETIME89%/11%
BUYS
8
SELLS
1
TOTAL VALUE
$35.5K
COMPANIES
2
ACTIVE SINCE
Jan 2022
HOLDINGS NOW
224,037
AVG SELL PX
$6.31
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by Syed Ali-aamir Rizvi, 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+0.00%+10.33%+4.14%+6.19%+6.19%
14d1+0.00%+23.69%+7.24%+16.45%+16.45%
30d1+0.00%+8.90%+4.79%+4.11%+4.11%
60d1+100.00%-22.42%+1.70%-24.11%-24.11%
90d1+100.00%-29.25%+6.97%-36.22%-36.22%
180d1+0.00%+9.86%+17.75%-7.89%-7.89%
1y1+100.00%-18.60%+26.02%-44.62%-44.62%
2y1+100.00%-75.68%+58.10%-133.78%-133.78%
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
CRBU · 131,000 shares · as of Feb 21, 2023
040,31380,625120,938161,2502023SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 8 buys / 1 sellsCOVERAGE · 17 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
RCKT
ROCKET PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
61,963407,874Feb 11, 2026Feb 13, 2026View →
RCKT
ROCKET PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
93,03793,037Feb 11, 2026Feb 13, 2026View →
RCKT
ROCKET PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
283,018283,018Oct 6, 2025Oct 8, 2025View →
RCKT
ROCKET PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
62,893345,911Oct 6, 2025Oct 8, 2025View →
RCKT
ROCKET PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
383,854383,854Oct 6, 2025Oct 8, 2025View →
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
131,000131,000Feb 21, 2023Feb 23, 2023View →
CRBU
CARIBOU BIOSCIENCES, INC.
SALE
Chief Medical Officer
5,627$6.31$35.5K59,373Jan 19, 2023Jan 20, 2023View →
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
161,250161,250Jan 25, 2022Jan 25, 2022View →
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
60,00065,000Jan 25, 2022Jan 25, 2022View →
Other insiders · CRBU
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About this filer
CIK 0001897621
ROLE
Chief Medical Officer
PRIMARY
CRBU
COMPANIES
2
ACTIVE SINCE
Jan 2022
MARKETPEEL · /INSIDER/0001897621DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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