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iRhythm Technologies

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

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

9% more repeat investments, than reductions

Existing positions increased: 101 | Existing positions reduced: 93

3.7% less ownership

Funds ownership: 114.56%110.86% (-3.7%)

28% less call options, than puts

Call options by funds: $27.3M | Put options by funds: $37.6M

Holders
300
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
5
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$27.3M
Puts
$37.6M
Net Calls
Net Calls Change

Top Buyers

1 +$45.9M
2 +$41.2M
3 +$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 -$107M
2 -$65.6M
3 -$50.3M
4
UBS AM
UBS AM
Illinois
-$45.5M
5
B
Braidwell
Connecticut
-$39.5M
Name Holding Trade Value Shares
Change
Change in
Stake
TCM
76
TimesSquare Capital Management
New York
$11M
State of Wisconsin Investment Board
77
State of Wisconsin Investment Board
Wisconsin
$10.5M
TI
78
Trexquant Investment
Connecticut
$10M
Susquehanna International Group
79
Susquehanna International Group
Pennsylvania
$9.96M
JF
80
Jump Financial
Illinois
$9.67M
Swiss National Bank
81
Swiss National Bank
Switzerland
$9.24M
Victory Capital Management
82
Victory Capital Management
Texas
$9.22M
Macquarie Group
83
Macquarie Group
Australia
$8.86M
Amundi
84
Amundi
France
$8.65M
First Trust Advisors
85
First Trust Advisors
Illinois
$8.65M
Connor, Clark & Lunn Investment Management (CC&L)
86
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$8.3M
PD
87
Point72 (DIFC)
United Arab Emirates
$7.7M
SAM
88
Silvercrest Asset Management
New York
$7.56M
RhumbLine Advisers
89
RhumbLine Advisers
Massachusetts
$7.46M
Federated Hermes
90
Federated Hermes
Pennsylvania
$7.46M
CM
91
Castleark Management
Illinois
$7.42M
Qube Research & Technologies (QRT)
92
Qube Research & Technologies (QRT)
United Kingdom
$7.3M
Prudential Financial
93
Prudential Financial
New Jersey
$7.06M
Balyasny Asset Management
94
Balyasny Asset Management
Illinois
$6.88M
Legal & General Group
95
Legal & General Group
United Kingdom
$6.77M
SFI
96
Susquehanna Fundamental Investments
Pennsylvania
$6.45M
IHAM
97
Integral Health Asset Management
New York
$6.16M
HIM
98
Hillsdale Investment Management
Ontario, Canada
$5.77M
AllianceBernstein
99
AllianceBernstein
Tennessee
$5.76M
UBS Group
100
UBS Group
Switzerland
$5.43M