MarketPeel
Insider Trading Intelligence
MS

Mark E. Strome

BEAT
DIRECTOR · HEARTBEAM, INC. · CIK 0000919484
FILING MIX · LIFETIME80%/20%
BUYS
4
SELLS
1
TOTAL VALUE
$1.50M
COMPANIES
1
ACTIVE SINCE
Jul 2023
HOLDINGS NOW
3,650,000
AVG SELL PX
$3.58
TRADE KIND
SHOWING 5 / 5
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Mark E. Strome, 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%-2.76%+1.90%-4.65%-4.65%
14d2+100.00%-7.95%+2.00%-9.94%-9.94%
30d2+100.00%-6.26%+4.41%-10.66%-10.66%
60d2+50.00%-31.55%+3.63%-35.18%-35.18%
90d2(1 pending)+100.00%-57.66%-0.09%-57.56%-57.56%
180d2(1 pending)+100.00%-75.31%+10.48%-85.79%-85.79%
1y2(2 pending)
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
BEAT · 3,650,000 shares · as of Apr 16, 2026
0912,5001,825,0002,737,5003,650,000202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 4 buys / 1 sellsCOVERAGE · 12 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
BEAT
HEARTBEAM, INC.
PURCHASE
750,000$0.80$600.0K3,650,000Apr 16, 2026Apr 16, 2026View →
BEAT
HEARTBEAM, INC.
PURCHASEGRANT
Stock grant
41,38041,380Feb 9, 2026Mar 23, 2026View →
BEAT
HEARTBEAM, INC.
SALE
250,000$3.58$895.0K2,900,000Dec 17, 2025Dec 22, 2025View →
BEAT
HEARTBEAM, INC.
PURCHASEGRANT
Stock grant
33,18557,146Jun 12, 2024Jun 20, 2024View →
BEAT
HEARTBEAM, INC.
PURCHASEGRANT
Stock grant
23,96123,961Jul 13, 2023Jul 17, 2023View →
Other insiders · BEAT
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About this filer
CIK 0000919484
ROLE
Director
PRIMARY
BEAT
COMPANIES
1
ACTIVE SINCE
Jul 2023
MARKETPEEL · /INSIDER/0000919484DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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