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Sumi Shrishrimal

IRTC
EVP, CHIEF RISK OFFICER · IRHYTHM HOLDINGS, INC. · CIK 0001850687
FILING MIX · LIFETIME38%/62%
BUYS
13
SELLS
21
TOTAL VALUE
$4.81M
COMPANIES
2
ACTIVE SINCE
May 2021
HOLDINGS NOW
54,076
AVG SELL PX
$159.65
TRADE KIND
SHOWING 34 / 34
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
16 backtested trades · 8 horizons · 17 pending
Forward-return performance of every backtestable P/S trade by Sumi Shrishrimal, 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
7d16+50.00%+0.03%-0.51%+0.53%+0.45%—
14d16+50.00%-0.27%-0.51%+0.24%+0.10%—
30d16+62.50%+1.07%-0.51%+1.58%-2.10%—
60d16+50.00%+6.38%+3.04%+3.35%+2.93%—
90d16+43.75%+6.63%+4.49%+8.38%+5.62%—
180d16(4 pending)+41.67%+12.79%+7.83%+4.96%-6.04%—
1y16(5 pending)+72.73%-5.74%+5.02%-9.44%-18.14%—
2y16(8 pending)+25.00%+13.81%+14.00%-2.47%-9.19%—
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 · 40,287 shares · as of Jun 2, 2026
011,44622,89334,33945,785202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 13 buys / 21 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
1,716$108.19$185.7K40,287Jun 2, 2026Jun 3, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
133$96.82$12.9K42,003May 29, 2026Jun 3, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
906$128.44$116.4K42,848Mar 2, 2026Mar 3, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
978$128.44$125.6K41,870Mar 2, 2026Mar 3, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
946$128.44$121.5K43,754Mar 2, 2026Mar 3, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
6,217$135.42$841.9K39,182Feb 25, 2026Feb 26, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
5,518——44,700Feb 25, 2026Feb 27, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
11,294——45,399Feb 24, 2026Feb 26, 2026 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
73$119.55$8.7K34,105Nov 28, 2025Dec 2, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
653$167.12$109.1K34,032Aug 22, 2025Aug 22, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
1,608$140.21$225.5K34,685Jun 2, 2025Jun 3, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
176$71.46$12.6K36,293May 30, 2025Jun 3, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
1,726$108.77$187.7K36,117Mar 3, 2025Mar 4, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
6,732——45,785Feb 26, 2025Feb 27, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
7,942$112.13$890.5K37,843Feb 26, 2025Feb 27, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
15,293——39,053Feb 25, 2025Feb 27, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASE
EVP, Chief Risk Officer
110$71.46$7.9K23,760Nov 29, 2024Feb 27, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
1,131$88.91$100.6K23,298Jun 3, 2024Jun 4, 2024 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASE
EVP, Chief Risk Officer
186$74.98$13.9K23,650May 31, 2024Feb 27, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
723$111.14$80.4K24,429Mar 4, 2024Mar 5, 2024 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
6,445——25,152Feb 28, 2024Mar 1, 2024 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASE
EVP, Chief Risk Officer
166$72.49$12.0K23,464Nov 30, 2023Feb 27, 2025 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
SALE
EVP, Chief Risk Officer
1,109$111.45$123.6K18,707Jun 2, 2023Jun 5, 2023 ↗View →
IRTC
IRHYTHM HOLDINGS, INC.
PURCHASEGRANT
Stock grant
6,961——19,687Feb 27, 2023Mar 1, 2023 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
192$406.06$78.0K14,435Mar 9, 2022Mar 10, 2022 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
519$406.06$210.7K14,627Mar 9, 2022Mar 10, 2022 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
309$406.06$125.5K14,126Mar 9, 2022Mar 10, 2022 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
337$406.06$136.8K13,789Mar 9, 2022Mar 10, 2022 ↗View →
DXCM
DEXCOM INC
PURCHASEGRANT
Stock grant
2,889$0.00$315,146Mar 8, 2022Mar 10, 2022 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
5$542.46$2.7K12,234Sep 9, 2021Sep 13, 2021 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
402$541.36$217.6K12,239Sep 9, 2021Sep 13, 2021 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
400$450.00$180.0K12,586Jul 16, 2021Jul 16, 2021 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
400$401.09$160.4K12,986Jun 11, 2021Jun 15, 2021 ↗View →
DXCM
DEXCOM INC
SALE
SVP Chief Risk Officer
1,461$354.79$518.3K13,386May 25, 2021May 27, 2021 ↗View →
Other insiders · IRTC
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About this filer
CIK 0001850687
ROLE
EVP, Chief Risk Officer
PRIMARY
IRTC
COMPANIES
2
ACTIVE SINCE
May 2021
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