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iRhythm Technologies
IRTC

Overview Fund Activity

255 hedge funds and large institutions have $3.77B invested in iRhythm Technologies in 2025 Q1 according to their latest regulatory filings, with 55 funds opening new positions, 80 increasing their positions, 82 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
255
Holders Change
+30
Holders Change %
+13.33%
% of All Funds
3.46%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
55
Increased
80
Reduced
82
Closed
22
Calls
$14.4M
Puts
$24M
Net Calls
-$9.56M
Net Calls Change
+$4.76M

Top Buyers

1
UBS AM
UBS AM
Illinois
$94.5M
2
Capital Research Global Investors
Capital Research Global Investors
California
$231M
3
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management
California
$54.2M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
$44M
5
Millennium Management
Millennium Management
New York
$41.8M

Top Sellers

1
Alyeska Investment Group
Alyeska Investment Group
Illinois
$0
2
Citadel Advisors
Citadel Advisors
Florida
$325K
3
Mackenzie Financial
Mackenzie Financial
Ontario, Canada
$121M
4
Sands Capital Management
Sands Capital Management
Virginia
$316M
5
B
Braidwell
Connecticut
$58.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
Zurich Cantonal Bank
126
Zurich Cantonal Bank
Switzerland
$911K +$52.5K +502 +6%
Creative Planning
127
Creative Planning
Kansas
$894K +$467K +4,463 +109%
SG Americas Securities
128
SG Americas Securities
New York
$882K +$431K +4,119 +96%
VOYA Investment Management
129
VOYA Investment Management
Georgia
$879K -$106K -1,008 -11%
AG
130
Ascent Group
Virginia
$878K +$29.3K +280 +3%
AQR Capital Management
131
AQR Capital Management
Connecticut
$869K +$2.41K +23 +0.3%
SF
132
Synovus Financial
Georgia
$810K -$111K -1,059 -12%
HighTower Advisors
133
HighTower Advisors
Illinois
$795K -$942 -9 -0.1%
Royal Bank of Canada
134
Royal Bank of Canada
Ontario, Canada
$793K +$641K +6,125 +423%
SW
135
SteelPeak Wealth
California
$784K +$784K +7,488 New
Mitsubishi UFJ Asset Management
136
Mitsubishi UFJ Asset Management
Japan
$750K -$13.6K -130 -2%
ProShare Advisors
137
ProShare Advisors
Maryland
$728K -$213K -2,035 -23%
CWM
138
CIBC World Markets
New York
$726K +$420K +4,012 +137%
ETC
139
Exchange Traded Concepts
Oklahoma
$715K -$187K -1,783 -21%
PFSRSONJ
140
Police & Firemen's Retirement System of New Jersey
New Jersey
$703K – – –
SRL
141
Scientech Research LLC
New Jersey
$681K +$681K +6,505 New
VFA
142
Values First Advisors
Tennessee
$650K +$64.4K +615 +11%
KK
143
KLP Kapitalforvaltning
Norway
$628K -$62.8K -600 -9%
N
144
Natixis
France
$617K – – –
PTC
145
Petrus Trust Company
Texas
$571K +$571K +5,455 New
Pictet Asset Management
146
Pictet Asset Management
Switzerland
$536K +$161K +1,538 +43%
YC
147
Yarbrough Capital
Tennessee
$487K +$487K +4,650 New
Teacher Retirement System of Texas
148
Teacher Retirement System of Texas
Texas
$479K +$479K +4,575 New
HSBC Holdings
149
HSBC Holdings
United Kingdom
$474K +$14.3K +138 +3%
HWAM
150
Hennion & Walsh Asset Management
New Jersey
$467K -$5.03K -48 -1%
4 5
6
7 8