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iRhythm Technologies
IRTC

Overview Fund Activity

300 hedge funds and large institutions have $5.44B invested in iRhythm Technologies in 2025 Q2 according to their latest regulatory filings, with 69 funds opening new positions, 101 increasing their positions, 93 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
300
Holders Change
+45
Holders Change %
+17.65%
% of All Funds
4.02%
Holding in Top 10
5
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+66.67%
% of All Funds
0.07%
New
69
Increased
101
Reduced
93
Closed
22
Calls
$27.3M
Puts
$37.6M
Net Calls
-$10.3M
Net Calls Change
-$787K

Top Buyers

1
Holocene Advisors
Holocene Advisors
New York
+$45.9M
2
Man Group
Man Group
United Kingdom
+$41.2M
3
Loomis, Sayles & Company
Loomis, Sayles & Company
Massachusetts
+$39.3M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$38.2M
5
Wellington Management Group
Wellington Management Group
Massachusetts
+$35.4M

Top Sellers

1
Capital Research Global Investors
Capital Research Global Investors
California
-$107M
2
Mackenzie Financial
Mackenzie Financial
Ontario, Canada
-$65.6M
3
Westfield Capital Management
Westfield Capital Management
Massachusetts
-$50.3M
4
UBS AM
UBS AM
Illinois
-$45.5M
5
B
Braidwell
Connecticut
-$39.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
BPCE
226
Bank Pictet & Cie (Europe)
Germany
$237K -$99.5K -646 -30%
CI
227
Corient IA
Florida
$231K +$231K +1,500 New
Bank of Montreal
228
Bank of Montreal
Ontario, Canada
$224K +$224K +1,454 New
PCH
229
Polar Capital Holdings
United Kingdom
$208K -$7.46M -48,423 -97%
AI
230
Atria Investments
North Carolina
$200K +$200K +1,300 New
VI
231
Versor Investments
New York
$200K +$200K +1,300 New
A
232
AlphaQuest
New York
$194K +$150K +974 +344%
SOW
233
State of Wyoming
Wyoming
$179K +$179K +1,163 New
AF
234
Avanza Fonder
Sweden
$175K – – –
AB
235
Amalgamated Bank
New York
$168K – – –
Nisa Investment Advisors
236
Nisa Investment Advisors
Missouri
$161K +$462 +3 +0.3%
US Bancorp
237
US Bancorp
Minnesota
$149K -$1.69K -11 -1%
KBC Group
238
KBC Group
Belgium
$134K -$71.9K -467 -35%
RBI
239
Raiffeisen Bank International
Austria
$105K – – –
Carson Wealth (CWM LLC)
240
Carson Wealth (CWM LLC)
Nebraska
$87K +$7.25K +47 +9%
VanEck Associates
241
VanEck Associates
New York
$85K – – –
Lazard Asset Management
242
Lazard Asset Management
New York
$72K +$72K +468 New
CA
243
Clearstead Advisors
Ohio
$62.4K +$27.4K +178 +78%
EWA
244
EverSource Wealth Advisors
Alabama
$47.1K +$5.7K +37 +14%
FDCDDQ
245
Federation des caisses Desjardins du Quebec
Quebec, Canada
$43.3K – – –
MA
246
MCF Advisors
Kentucky
$40.3K +$3.39K +22 +9%
AP
247
Antipodes Partners
Australia
$39.3K +$39.3K +255 New
AF
248
Allworth Financial
California
$38.5K +$462 +3 +1%
EPIM
249
Evelyn Partners Investment Management
$37.7K -$8.61K -56 -19%
PWAM
250
Private Wealth Asset Management
Iowa
$34.8K – – –
8 9
10
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