MarketPeel
Insider Trading Intelligence
MM

Michael Messinger

ICU
CHIEF FINANCIAL OFFICER · SEASTAR MEDICAL HOLDING CORP · CIK 0001615039
FILING MIX · LIFETIME100%/0%
BUYS
1
SELLS
0
TOTAL VALUE
$5.1K
COMPANIES
1
ACTIVE SINCE
Dec 2025
HOLDINGS NOW
17,500
AVG SELL PX
TRADE KIND
SHOWING 1 / 1
Trades · vs SPY
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Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Michael Messinger, 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%-11.80%-0.61%-11.19%-11.19%
14d1+0.00%-33.99%+0.72%-34.71%-34.71%
30d1+0.00%-32.30%+0.95%-33.25%-33.25%
60d1+0.00%-30.34%+1.11%-31.45%-31.45%
90d1+0.00%-25.84%-0.70%-25.14%-25.14%
180d1+0.00%-17.42%+7.96%-25.38%-25.38%
1y1(1 pending)
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
Not enough transaction history to chart holdings.
Trading cadence · quarterly flow
BUY SELL
2025
FLOW · 1 buys / 0 sellsCOVERAGE · 1 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ICU
SEASTAR MEDICAL HOLDING CORP
PURCHASE
Chief Financial Officer
14,500$0.35$5.1K17,500Dec 9, 2025Dec 11, 2025View →
Other insiders · ICU
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About this filer
CIK 0001615039
ROLE
Chief Financial Officer
PRIMARY
ICU
COMPANIES
1
ACTIVE SINCE
Dec 2025
MARKETPEEL · /INSIDER/0001615039DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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