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Peter B. Migliorato

JRVR
DIRECTOR · JAMES RIVER GROUP HOLDINGS, INC. · CIK 0001852034
FILING MIX · LIFETIME100%/0%
BUYS
5
SELLS
0
TOTAL VALUE
$101.1K
COMPANIES
1
ACTIVE SINCE
Mar 2023
HOLDINGS NOW
53,610
AVG SELL PX
TRADE KIND
SHOWING 5 / 5
Trades · vs SPY
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Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 1 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Peter B. Migliorato, 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+100.00%+5.01%-0.29%+5.30%+5.30%
14d1+100.00%+9.09%+0.55%+8.54%+8.54%
30d1+100.00%+8.72%+0.77%+7.95%+7.95%
60d1+100.00%+4.08%+5.86%-1.78%-1.78%
90d1+100.00%+5.57%+8.51%-2.94%-2.94%
180d1+100.00%+2.60%+12.28%-9.69%-9.69%
1y1+0.00%-23.01%+25.21%-48.22%-48.22%
2y1(1 pending)
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
JRVR · 53,610 shares · as of Mar 4, 2026
013,40326,80540,20853,610202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 5 buys / 0 sellsCOVERAGE · 13 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASEGRANT
Stock grant
14,40953,610Mar 4, 2026Mar 6, 2026View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASE
18,500$5.46$101.1K39,201May 20, 2025May 21, 2025View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASEGRANT
Stock grant
13,58620,701Mar 5, 2025Mar 7, 2025View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASEGRANT
Stock grant
5,1027,115Mar 1, 2024Mar 4, 2024View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,0132,013Mar 1, 2023Mar 3, 2023View →
Other insiders · JRVR
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About this filer
CIK 0001852034
ROLE
Director
PRIMARY
JRVR
COMPANIES
1
ACTIVE SINCE
Mar 2023
MARKETPEEL · /INSIDER/0001852034DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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