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iRhythm Technologies
IRTC

Overview Fund Activity

217 hedge funds and large institutions have $4.32B invested in iRhythm Technologies in 2021 Q1 according to their latest regulatory filings, with 52 funds opening new positions, 64 increasing their positions, 79 reducing their positions, and 67 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
217
Holders Change
-17
Holders Change %
-7.26%
% of All Funds
3.82%
Holding in Top 10
–
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-100%
% of All Funds
–
New
52
Increased
64
Reduced
79
Closed
67
Calls
$35.9M
Puts
$17.5M
Net Calls
+$18.3M
Net Calls Change
+$56.8M

Top Buyers

1
CS
Credit Suisse
Switzerland
$132M
2
Macquarie Group
Macquarie Group
Australia
$149M
3
William Blair & Company
William Blair & Company
Illinois
$69.2M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$158M
5
VOYA Investment Management
VOYA Investment Management
Georgia
$28.2M

Top Sellers

1
JSP
Jackson Square Partners
California
$0
2
FAM
Fred Alger Management
New York
$0
3
Neuberger Berman Group
Neuberger Berman Group
New York
$1.17M
4
Artisan Partners
Artisan Partners
Wisconsin
$108M
5
Franklin Resources
Franklin Resources
California
$38M
Name Holding Trade Value Shares
Change 		Shares
Change %
QT
126
Quantbot Technologies
New York
$725K +$439K +3,163 +153%
Jane Street
127
Jane Street
New York
$714K -$231K -1,666 -24%
OAM
128
Oppenheimer Asset Management
New York
$706K -$833 -6 -0.1%
Bank of Montreal
129
Bank of Montreal
Ontario, Canada
$691K -$2.55M -18,942 -79%
Osaic Holdings
130
Osaic Holdings
Arizona
$635K +$232K +1,669 +57%
CCM
131
Conway Capital Management
California
$632K -$88.9K -640 -12%
CF
132
CNA Financial
Illinois
$628K -$107K -770 -15%
E
133
Ergoteles
New York
$625K +$625K +4,500 New
TI
134
Trexquant Investment
Connecticut
$595K +$595K +4,283 New
GLA
135
Great Lakes Advisors
Illinois
$592K -$15.6M -112,100 -96%
Public Employees Retirement Association of Colorado
136
Public Employees Retirement Association of Colorado
Colorado
$582K – – –
AB
137
Amalgamated Bank
New York
$571K -$55.8K -402 -9%
NA
138
NewEdge Advisors
Louisiana
$567K +$189K +1,360 +50%
RJA
139
Raymond James & Associates
Florida
$563K +$178K +1,282 +46%
MSL
140
Mackay Shields LLC
New York
$528K -$181K -1,300 -25%
B
141
Bailard
California
$506K -$45.4K -327 -8%
Millennium Management
142
Millennium Management
New York
$444K +$444K +3,194 New
Zurich Cantonal Bank
143
Zurich Cantonal Bank
Switzerland
$425K -$49.9K -359 -11%
Teacher Retirement System of Texas
144
Teacher Retirement System of Texas
Texas
$423K +$81.6K +587 +24%
Canada Pension Plan Investment Board
145
Canada Pension Plan Investment Board
Ontario, Canada
$423K +$230K +1,654 +119%
BPCE
146
Bank Pictet & Cie (Europe)
Germany
$411K +$411K +2,963 New
VRS
147
Virginia Retirement Systems
Virginia
$403K -$69.5K -500 -15%
ACM
148
AlphaCrest Capital Management
New York
$391K +$391K +2,813 New
SG Americas Securities
149
SG Americas Securities
New York
$382K +$259K +1,864 +211%
Russell Investments Group
150
Russell Investments Group
United Kingdom
$369K +$369K +2,661 New
4 5
6
7 8