MarketPeel
Insider Trading Intelligence
MR

Marc Wade Rosenbaum

IRTC
CHIEF ACCOUNTING OFFICER · IRHYTHM HOLDINGS, INC. · CIK 0001929535
FILING MIX · LIFETIME50%/50%
BUYS
9
SELLS
9
TOTAL VALUE
$1.16M
COMPANIES
1
ACTIVE SINCE
Nov 2023
HOLDINGS NOW
16,155
AVG SELL PX
$129.75
TRADE KIND
SHOWING 18 / 18
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
8 backtested trades · 8 horizons · 16 pending
Forward-return performance of every backtestable P/S trade by Marc Wade Rosenbaum, 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
7d8+75.00%-1.90%-0.59%-1.31%-2.64%
14d8+62.50%-3.98%-0.68%-3.30%-5.50%
30d8+62.50%-1.27%-1.84%+0.56%-3.30%
60d8+62.50%+0.64%+2.91%-2.27%-10.72%
90d8+62.50%-1.00%+6.24%+4.73%+7.33%
180d8(4 pending)+25.00%+21.04%+12.40%+8.63%+3.47%
1y8(5 pending)+33.33%+22.93%+15.63%+28.27%+28.27%
2y8(7 pending)+0.00%+29.86%
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
IRTC · 16,155 shares · as of Jun 2, 2026
04,9539,90614,85819,811202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 9 buys / 9 sellsCOVERAGE · 11 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
729$108.19$78.9K16,155Jun 2, 2026Jun 3, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
178$96.82$17.2K16,884May 29, 2026Jun 3, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
399$128.45$51.3K17,123Mar 2, 2026Mar 3, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
417$128.45$53.6K16,706Mar 2, 2026Mar 3, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
4,797$135.42$649.6K15,014Feb 25, 2026Feb 26, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,50817,522Feb 25, 2026Feb 27, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
280$140.91$39.5K10,601Feb 24, 2026Feb 25, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
9,21019,811Feb 24, 2026Feb 26, 2026View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2$119.55$23910,881Nov 28, 2025Dec 2, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
226$158.93$35.9K10,879Aug 11, 2025Aug 12, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
696$140.21$97.6K11,105Jun 2, 2025Jun 3, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
294$71.46$21.0K11,801May 30, 2025Jun 3, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
314$108.77$34.2K11,507Mar 3, 2025Mar 4, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
3,14111,821Feb 26, 2025Feb 27, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
Chief Accounting Officer
510$88.91$45.3K8,174Jun 3, 2024Jun 4, 2024View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASE
Chief Accounting Officer
280$74.98$21.0K8,680May 31, 2024Feb 27, 2025View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
3,0078,684Feb 28, 2024Mar 1, 2024View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASE
Chief Accounting Officer
226$72.49$16.4K8,400Nov 30, 2023Feb 27, 2025View →
Other insiders · IRTC
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About this filer
CIK 0001929535
ROLE
Chief Accounting Officer
PRIMARY
IRTC
COMPANIES
1
ACTIVE SINCE
Nov 2023
MARKETPEEL · /INSIDER/0001929535DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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