MarketPeel
Insider Trading Intelligence
SR

Sriram Ryali

CRBU
CHIEF FINANCIAL OFFICER · CARIBOU BIOSCIENCES, INC. · CIK 0001762893
FILING MIX · LIFETIME100%/0%
BUYS
9
SELLS
0
TOTAL VALUE
$44.5K
COMPANIES
2
ACTIVE SINCE
Feb 2023
HOLDINGS NOW
561,625
AVG SELL PX
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 1 pending
Forward-return performance of every backtestable P/S trade by Sriram Ryali, 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%+10.87%+0.13%+10.74%+10.74%
14d2+0.00%-6.52%-1.40%-5.12%-5.12%
30d2+50.00%+3.25%-1.95%+5.20%+5.20%
60d2+50.00%-15.35%-4.18%-11.17%-11.17%
90d2+50.00%-4.25%-2.20%-2.06%-2.06%
180d2+100.00%+91.26%+10.72%+80.54%+80.54%
1y2+100.00%+34.88%+19.33%+15.55%+15.55%
2y2(1 pending)+100.00%+42.44%+49.07%-6.63%-6.63%
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 · 247,500 shares · as of Feb 20, 2026
075,000150,000225,000300,0002026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 9 buys / 0 sellsCOVERAGE · 13 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
55,00072,360Feb 20, 2026Feb 20, 2026View →
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
247,500247,500Feb 20, 2026Feb 20, 2026View →
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASE
Chief Financial Officer
17,360$1.42$24.7K17,360Jan 29, 2025Jan 30, 2025View →
CRBU
CARIBOU BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
300,000300,000Jan 10, 2025Jan 10, 2025View →
CDXS
CODEXIS, INC.
PURCHASEGRANT
Stock grant
52,350175,791Jan 1, 2024Jan 2, 2024View →
CDXS
CODEXIS, INC.
PURCHASEGRANT
Stock grant
314,125314,125Jan 1, 2024Jan 2, 2024View →
CDXS
CODEXIS, INC.
PURCHASE
Chief Financial Officer
11,650$1.70$19.9K123,441Sep 8, 2023Sep 12, 2023View →
CDXS
CODEXIS, INC.
PURCHASEGRANT
Stock grant
111,791111,791Feb 10, 2023Feb 14, 2023View →
CDXS
CODEXIS, INC.
PURCHASEGRANT
Stock grant
372,637372,637Feb 10, 2023Feb 14, 2023View →
Other insiders · CRBU
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About this filer
CIK 0001762893
ROLE
Chief Financial Officer
PRIMARY
CRBU
COMPANIES
2
ACTIVE SINCE
Feb 2023
MARKETPEEL · /INSIDER/0001762893DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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