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iRhythm Technologies
IRTC

Overview Fund Activity

234 hedge funds and large institutions have $7.9B invested in iRhythm Technologies in 2020 Q4 according to their latest regulatory filings, with 41 funds opening new positions, 97 increasing their positions, 68 reducing their positions, and 37 closing their positions.

Holders
234
Holders Change
+1
Holders Change %
+0.43%
% of All Funds
4.15%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
41
Increased
97
Reduced
68
Closed
37
Calls
$39.1M
Puts
$77.6M
Net Calls
-$38.5M
Net Calls Change
-$42.5M

Top Buyers

1
Sands Capital Management
1
Sands Capital Management
Virginia
$729M
2
Artisan Partners
2
Artisan Partners
Wisconsin
$322M
3
JSP
3
Jackson Square Partners
California
$176M
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$430M
5
BlackRock
5
BlackRock
New York
$541M

Top Sellers

1
William Blair Investment Management
1
William Blair Investment Management
Illinois
$0
2
Holocene Advisors
2
Holocene Advisors
New York
$39.9M
3
TCM
3
TimesSquare Capital Management
New York
$0
4
Loomis, Sayles & Company
4
Loomis, Sayles & Company
Massachusetts
$0
5
Lord, Abbett & Co
5
Lord, Abbett & Co
New Jersey
$42.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
California Public Employees Retirement System
51
California Public Employees Retirement System
California
$16.6M +$1.78M +7,484 +12%
Ameriprise
52
Ameriprise
Minnesota
$15.8M -$956K -4,031 -6%
Swiss National Bank
53
Swiss National Bank
Switzerland
$15.4M +$830K +3,500 +6%
SIMG
54
Stephens Investment Management Group
Texas
$14.9M +$14.9M +62,752 New
Deutsche Bank
55
Deutsche Bank
Germany
$14.8M -$3.24M -13,647 -18%
State of Wisconsin Investment Board
56
State of Wisconsin Investment Board
Wisconsin
$14.7M -$1.45M -6,100 -9%
Allianz Asset Management
57
Allianz Asset Management
Germany
$13.7M +$1.62M +6,833 +13%
Voloridge Investment Management
58
Voloridge Investment Management
Florida
$13.6M +$94.2K +397 +0.7%
Federated Hermes
59
Federated Hermes
Pennsylvania
$12.3M -$20.2M -85,099 -62%
ACM
60
Atika Capital Management
New York
$11.9M -$4.98M -21,000 -30%
TD Asset Management
61
TD Asset Management
Ontario, Canada
$11M +$2.6M +10,979 +31%
California State Teachers Retirement System (CalSTRS)
62
California State Teachers Retirement System (CalSTRS)
California
$10.4M +$518K +2,185 +5%
RhumbLine Advisers
63
RhumbLine Advisers
Massachusetts
$9.91M +$358K +1,511 +4%
Legal & General Group
64
Legal & General Group
United Kingdom
$9.83M +$1.61M +6,796 +20%
Man Group
65
Man Group
United Kingdom
$9.54M +$481K +2,026 +5%
Axa
66
Axa
France
$9.13M +$3.98M +16,763 +77%
NCGI
67
Next Century Growth Investors
Minnesota
$8.61M -$802K -3,379 -9%
Carson Wealth (CWM LLC)
68
Carson Wealth (CWM LLC)
Nebraska
$8.3M – – –
PPA
69
Parametric Portfolio Associates
Washington
$8.27M -$1.79M -7,557 -18%
Ensign Peak Advisors
70
Ensign Peak Advisors
Utah
$7.58M +$4.05M +17,090 +115%
UBS AM
71
UBS AM
Illinois
$7.56M +$295K +1,245 +4%
MOACM
72
Mutual of America Capital Management
New York
$7.44M +$469K +1,976 +7%
SIA
73
Sit Investment Associates
Minnesota
$7.33M +$184K +775 +3%
Royal Bank of Canada
74
Royal Bank of Canada
Ontario, Canada
$6.83M +$1.05M +4,410 +18%
PFM
75
Premier Fund Managers
United Kingdom
$6.47M – – –
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