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iRhythm Technologies

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

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:

4.89% more ownership

Funds ownership: 109.67%114.56% (+4.9%)

2% less repeat investments, than reductions

Existing positions increased: 80 | Existing positions reduced: 82

40% less call options, than puts

Call options by funds: $14.4M | Put options by funds: $24M

Holders
255
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$14.4M
Puts
$24M
Net Calls
Net Calls Change

Top Sellers

1 -$31.7M
2 -$31.4M
3 -$23.7M
4
Sands Capital Management
Sands Capital Management
Virginia
-$16.8M
5
B
Braidwell
Connecticut
-$15.6M
Name Holding Trade Value Shares
Change
Change in
Stake
MIM
101
MetLife Investment Management
New Jersey
$1.94M
ACM
102
Aquatic Capital Management
Illinois
$1.94M
KCM
103
Kennedy Capital Management
Missouri
$1.86M
IIM
104
INTECH Investment Management
Florida
$1.83M
BHCM
105
Brevan Howard Capital Management
Jersey
$1.79M
State of New Jersey Common Pension Fund D
106
State of New Jersey Common Pension Fund D
New Jersey
$1.7M
Group One Trading
107
Group One Trading
Illinois
$1.66M
CF
108
Corebridge Financial
Texas
$1.6M
GIM
109
Granahan Investment Management
Massachusetts
$1.55M
Holocene Advisors
110
Holocene Advisors
New York
$1.54M
Janus Henderson Group
111
Janus Henderson Group
United Kingdom
$1.45M
UOC
112
UBS O'Connor
Illinois
$1.41M
AG
113
Algert Global
California
$1.36M
Handelsbanken Fonder
114
Handelsbanken Fonder
Sweden
$1.32M
Universal-Beteiligungs- und Servicegesellschaft
115
Universal-Beteiligungs- und Servicegesellschaft
Germany
$1.3M
CIM
116
CIM Investment Management
Pennsylvania
$1.12M
WF
117
WoodTrust Financial
Wisconsin
$1.12M
Balyasny Asset Management
118
Balyasny Asset Management
Illinois
$1.12M
Ensign Peak Advisors
119
Ensign Peak Advisors
Utah
$1.11M
SCM
120
Semanteon Capital Management
Massachusetts
$1.08M
Truist Financial
121
Truist Financial
North Carolina
$1.06M
State Board of Administration of Florida Retirement System
122
State Board of Administration of Florida Retirement System
Florida
$951K
AAIS
123
ABN AMRO Investment Solutions
$944K
ASRS
124
Arizona State Retirement System
Arizona
$938K
DT
125
Diversified Trust
Tennessee
$936K