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iRhythm Technologies
IRTC

Overview Fund Activity

297 hedge funds and large institutions have $5.4B invested in iRhythm Technologies in 2025 Q2 according to their latest regulatory filings, with 69 funds opening new positions, 99 increasing their positions, 92 reducing their positions, and 22 closing their positions.

Holders
297
Holders Change
+42
Holders Change %
+16.47%
% of All Funds
3.99%
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
99
Reduced
92
Closed
22
Calls
$21.6M
Puts
$29.6M
Net Calls
-$8.01M
Net Calls Change
+$1.55M

Top Buyers

1
Holocene Advisors
1
Holocene Advisors
New York
$48.2M
2
Man Group
2
Man Group
United Kingdom
$41.2M
3
Loomis, Sayles & Company
3
Loomis, Sayles & Company
Massachusetts
$39.3M
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$38.2M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$60.9M

Top Sellers

1
Capital Research Global Investors
1
Capital Research Global Investors
California
$232M
2
Mackenzie Financial
2
Mackenzie Financial
Ontario, Canada
$112M
3
Westfield Capital Management
3
Westfield Capital Management
Massachusetts
$44.7M
4
UBS AM
4
UBS AM
Illinois
$93.6M
5
B
5
Braidwell
Connecticut
$46.2M
Name Market Value Shares Shares
Change 		Shares
Change %
Canada Pension Plan Investment Board
201
Canada Pension Plan Investment Board
Ontario, Canada
$431K 2,800 +2,500 +833%
SOS
202
Silver Oak Securities
Tennessee
$422K 2,742 -121 -4%
VRS
203
Virginia Retirement Systems
Virginia
$416K 2,700 +2,700 New
RS
204
R Squared
Hong Kong
$404K 2,621 +2,621 New
ECM
205
Everence Capital Management
Indiana
$399K 2,590 +2,590 New
HighTower Advisors
206
HighTower Advisors
Illinois
$389K 2,529 -5,069 -67%
X
207
Xponance
Pennsylvania
$382K 2,478 +88 +4%
VPIM
208
Vanguard Personalized Indexing Management
California
$371K 2,410 +293 +14%
OAM
209
Oppenheimer Asset Management
New York
$367K 2,386 -1,603 -40%
QC
210
Quadrature Capital
United Kingdom
$363K 2,360 +2,360 New
VA
211
Vident Advisory
Georgia
$354K 2,301 -51 -2%
CC
212
Corton Capital
Ontario, Canada
$342K 2,223 +2,223 New
SI
213
Stephens Inc
Arkansas
$333K 2,166 +44 +2%
HCA
214
Harbour Capital Advisors
Virginia
$319K 2,235 +2,235 New
FRA
215
Frank Rimerman Advisors
California
$315K 2,045 – –
SWM
216
SeaCrest Wealth Management
New York
$313K 2,030 – –
QCG
217
Quadrant Capital Group
Ohio
$299K 1,940 – –
RA
218
RiverPark Advisors
New York
$295K 1,916 -124 -6%
Two Sigma Investments
219
Two Sigma Investments
New York
$293K 1,900 +1,900 New
AB
220
ANB Bank
Colorado
$281K 1,826 +1,826 New
PTC
221
Petrus Trust Company
Texas
$276K 1,792 -3,663 -67%
AIM
222
Aigen Investment Management
New York
$260K 1,686 +1,686 New
Neuberger Berman Group
223
Neuberger Berman Group
New York
$248K 1,611 +1,611 New
MNBTD
224
Moody National Bank Trust Division
Texas
$247K 1,602 +1,602 New
EI
225
Ethic Inc
New York
$242K 1,566 +1,566 New
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9
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