MarketPeel
Insider Trading Intelligence
LS

Lewis A. Sachs

BOW
DIRECTOR · BOWHEAD SPECIALTY HOLDINGS INC. · CIK 0001923163
FILING MIX · LIFETIME29%/71%
BUYS
2
SELLS
5
TOTAL VALUE
$186.85M
COMPANIES
2
ACTIVE SINCE
Jun 2024
HOLDINGS NOW
9,080,945
AVG SELL PX
$28.84
TRADE KIND
SHOWING 7 / 7
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 3 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Lewis A. Sachs, 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%-0.65%-0.20%-0.45%-0.45%
14d2+0.00%+6.99%+2.29%+4.70%+4.70%
30d2+50.00%+11.01%+2.51%+8.50%+8.50%
60d2+50.00%+1.09%+4.60%-3.51%-3.51%
90d2+50.00%-6.22%+5.43%-11.64%-11.64%
180d2+50.00%+9.74%+0.37%+9.37%+9.37%
1y2(1 pending)+100.00%-14.92%+17.71%-32.63%-32.63%
2y2(2 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
BOW · 8,968,445 shares · as of Aug 8, 2025
03,535,6317,071,26210,606,89214,142,5232025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2024
2024
2024
2025
2025
2025
FLOW · 2 buys / 5 sellsCOVERAGE · 6 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
BOW
BOWHEAD SPECIALTY HOLDINGS INC.
SALE
2,000,000$30.66$61.32M8,968,445Aug 8, 2025Aug 8, 2025View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASEGRANT
Stock grant
112,500112,500Nov 11, 2024Nov 13, 2024View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
SALE
112,5000Nov 11, 2024Nov 13, 2024View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
PURCHASE
5,859,375$6.40$37.50M5,859,375Nov 11, 2024Nov 13, 2024View →
JRVR
JAMES RIVER GROUP HOLDINGS, INC.
SALE
37,500112,500Nov 11, 2024Nov 13, 2024View →
BOW
BOWHEAD SPECIALTY HOLDINGS INC.
SALE
3,178,662$27.70$88.03M10,968,445Oct 25, 2024Oct 29, 2024View →
BOW
BOWHEAD SPECIALTY HOLDINGS INC.
SALE
270,00014,142,523Jun 30, 2024Jul 2, 2024View →
Other insiders · BOW
Loading peer insiders…
About this filer
CIK 0001923163
ROLE
Director
PRIMARY
BOW
COMPANIES
2
ACTIVE SINCE
Jun 2024
MARKETPEEL · /INSIDER/0001923163DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback