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Insider Trading Intelligence
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Stuart J. Zimmer

ASIC
DIRECTOR · ATEGRITY SPECIALTY INSURANCE CO HOLDINGS · CIK 0001858477
FILING MIX · LIFETIME100%/0%
BUYS
5
SELLS
0
TOTAL VALUE
$507.4K
COMPANIES
1
ACTIVE SINCE
Aug 2025
HOLDINGS NOW
38,538,541
AVG SELL PX
TRADE KIND
SHOWING 5 / 5
Trades · vs SPY
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Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 10 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stuart J. Zimmer, 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
7d5+20.00%-6.98%+0.68%-7.66%-10.49%
14d5+20.00%-5.15%+0.05%-5.20%-6.94%
30d5+60.00%-0.35%+2.80%-3.16%-3.42%
60d5+0.00%-5.87%+2.40%-8.27%-7.12%
90d5+80.00%+5.05%+4.41%+0.64%+4.96%
180d5+0.00%-4.33%-0.70%-3.64%-1.75%
1y5(5 pending)
2y5(5 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
ASIC · 38,538,541 shares · as of Sep 30, 2025
09,634,63519,269,27128,903,90638,538,541SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
FLOW · 5 buys / 0 sellsCOVERAGE · 1 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ASIC
ATEGRITY SPECIALTY INSURANCE CO HOLDINGS
PURCHASE
5,000$19.47$97.3K38,538,541Sep 30, 2025Oct 1, 2025View →
ASIC
ATEGRITY SPECIALTY INSURANCE CO HOLDINGS
PURCHASE
6,130$19.37$118.8K38,533,541Sep 29, 2025Oct 1, 2025View →
ASIC
ATEGRITY SPECIALTY INSURANCE CO HOLDINGS
PURCHASE
5,741$19.44$111.6K38,527,411Sep 26, 2025Sep 29, 2025View →
ASIC
ATEGRITY SPECIALTY INSURANCE CO HOLDINGS
PURCHASE
4,179$19.45$81.3K38,521,670Sep 25, 2025Sep 29, 2025View →
ASIC
ATEGRITY SPECIALTY INSURANCE CO HOLDINGS
PURCHASE
5,051$19.49$98.4K38,517,491Aug 13, 2025Aug 15, 2025View →
Other insiders · ASIC
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About this filer
CIK 0001858477
ROLE
Director
PRIMARY
ASIC
COMPANIES
1
ACTIVE SINCE
Aug 2025
MARKETPEEL · /INSIDER/0001858477DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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