iRhythm Holdings, Inc.

IRTCNASDAQ

$110.37-0.68 (-0.61%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

iRhythm Holdings, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-36.5%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	9.06%	$355M	0.01%	Not reported
RTW Investments, LP	6.63%	$260M	2.22%	Add 30.81%
Vanguard Portfolio Management LLC	5.81%	$228M	0.01%	Not reported
Artisan Partners Limited Partnership	5.04%	$197M	0.31%	Add 14.43%
Vanguard Capital Management LLC	4.44%	$174M	0.00%	Not reported
Millennium Management LLC	4.27%	$167M	0.06%	Not reported
FMR LLC	3.62%	$142M	0.01%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	2.87%	$112M	0.02%	Not reported
Geode Capital Management, LLC	2.68%	$105M	0.01%	Not reported
Eventide Asset Management, LLC	2.67%	$105M	1.40%	Add 15.71%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	2.63%	$103M	0.10%	Add 13.71%
State Street Corp	2.60%	$102M	0.00%	Not reported
Holocene Advisors, LP	2.38%	$93.2M	0.21%	Reduce 37.24%
JPMorgan Chase & Co	2.33%	$90.9M	0.01%	Not reported
Stephens Investment Management Group LLC	2.10%	$82.5M	0.88%	Add 23.49%
Fuller & Thaler Asset Management, Inc.	2.08%	$81.5M	0.22%	Not reported
Braidwell LP	1.99%	$77.8M	2.88%	Add 7.22%
D. E. Shaw & Co., Inc.	1.91%	$74.9M	0.04%	Not reported
Manufacturers Life Insurance Company, the	1.70%	$66.8M	0.05%	Not reported
Blair William & Co	1.59%	$62.4M	0.16%	Reduce 16.50%
Bank of America Corp	1.41%	$55.4M	0.00%	Not reported
Polar Capital Holdings Plc	1.39%	$54.5M	0.13%	Add 8.65%
Arrowstreet Capital, Limited Partnership	1.37%	$53.6M	0.02%	Not reported
Schroder Investment Management Group	1.36%	$53.1M	0.04%	Add 80.93%
Goldman Sachs Group Inc	1.10%	$43.1M	0.00%	Not reported
Loomis Sayles & Co L P	1.06%	$41.4M	0.05%	Reduce 5.42%
Capital Research Global Investors	1.02%	$39.9M	0.01%	Not reported
Northern Trust Corp	0.93%	$36.6M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.91%	$35.5M	0.00%	Not reported
Ameriprise Financial Inc	0.89%	$34.8M	0.01%	Not reported
Westfield Capital Management Co LP	0.88%	$34.4M	0.11%	New Not reported
Jane Street Group, LLC	0.84%	$32.7M	0.00%	Not reported
Point72 Asset Management, L.P.	0.83%	$32.5M	0.04%	Not reported
Qube Research & Technologies Ltd	0.82%	$32.3M	0.03%	Not reported
Rock Springs Capital Management LP	0.82%	$32.1M	1.57%	Add 3.02%
Citigroup Inc	0.76%	$29.7M	0.01%	Not reported
Deutsche Bank Ag\	0.72%	$28.3M	0.01%	Not reported
Vanguard Fiduciary Trust Co	0.72%	$28.1M	0.01%	Not reported
Perceptive Advisors LLC	0.68%	$26.6M	0.40%	Add 113.06%
Fred Alger Management, LLC	0.67%	$26.3M	0.09%	Reduce 21.16%
Oberweis Asset Management Inc/	0.61%	$24M	0.50%	Add 29.49%
Ophir Asset Management Pty Ltd	0.61%	$24M	1.97%	Reduce 40.00%
Barclays PLC	0.58%	$22.8M	0.00%	Not reported
Next Century Growth Investors LLC	0.57%	$22.3M	1.18%	Add 10.49%
Bamco Inc	0.55%	$21.6M	0.03%	Reduce 1.34%
Sei Investments Co	0.54%	$21.3M	0.02%	Not reported
First Light Asset Management, LLC	0.51%	$19.9M	1.21%	Reduce 0.61%
Massachusetts Financial Services Co	0.50%	$19.7M	0.01%	Reduce 0.38%
Prosight Management, LP	0.50%	$19.7M	3.39%	Add 1555.00%
Schonfeld Strategic Advisors LLC	0.46%	$18.1M	0.06%	Not reported

50 of 282 holders

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