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iRhythm Technologies
IRTC

Overview Fund Activity

106 hedge funds and large institutions have $1.17B invested in iRhythm Technologies in 2017 Q3 according to their latest regulatory filings, with 13 funds opening new positions, 42 increasing their positions, 40 reducing their positions, and 7 closing their positions.

Holders
106
Holders Change
+6
Holders Change %
+6%
% of All Funds
2.65%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.07%
New
13
Increased
42
Reduced
40
Closed
7
Calls
$296K
Puts
$1.13M
Net Calls
-$835K
Net Calls Change
-$478K

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$112M
2
BlackRock
2
BlackRock
New York
$77M
3
RSCM
3
Rock Springs Capital Management
Maryland
$20M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$38M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$16.2M

Top Sellers

1
Millennium Management
1
Millennium Management
New York
$16.8M
2
PC
2
PointState Capital
New York
$0
3
Point72 Asset Management
3
Point72 Asset Management
Connecticut
$13.9M
4
TCM
4
TimesSquare Capital Management
New York
$41.3M
5
AC
5
Ascend Capital
California
$3M
Name Market Value Shares Shares
Change 		Shares
Change %
Capital Research Global Investors
1
Capital Research Global Investors
California
$124M 2,399,180 – –
Fidelity Investments
2
Fidelity Investments
Massachusetts
$112M 2,155,542 +612,656 +40%
BlackRock
3
BlackRock
New York
$77M 1,483,898 +503,005 +51%
CWAM
4
Columbia Wanger Asset Management
Illinois
$59.1M 1,140,075 -19,192 -2%
Franklin Resources
5
Franklin Resources
California
$55.3M 1,065,505 -44,108 -4%
AllianceBernstein
6
AllianceBernstein
Tennessee
$52M 1,002,890 +118,904 +13%
TCM
7
TimesSquare Capital Management
New York
$41.3M 796,620 -263,610 -25%
Bank of New York Mellon
8
Bank of New York Mellon
New York
$38.3M 737,271 +130,217 +21%
Vanguard Group
9
Vanguard Group
Pennsylvania
$38M 732,093 +311,703 +74%
NLVP
10
New Leaf Venture Partners
New York
$36.5M 703,741 +37,776 +6%
Wells Fargo
11
Wells Fargo
California
$31.6M 609,187 +244,411 +67%
RG
12
Redmile Group
California
$28.6M 552,041 +75,700 +16%
NCGI
13
Next Century Growth Investors
Minnesota
$21.5M 413,855 -150,015 -27%
WRF
14
Waddell & Reed Financial
Kansas
$20.9M 403,362 -14,400 -3%
RSCM
15
Rock Springs Capital Management
Maryland
$20M 386,000 +386,000 New
PA
16
Perceptive Advisors
New York
$19.3M 372,671 +89,814 +32%
Millennium Management
17
Millennium Management
New York
$16.8M 323,173 -492,150 -60%
Citadel Advisors
18
Citadel Advisors
Florida
$16.8M 322,951 -119,759 -27%
JPMorgan Chase & Co
19
JPMorgan Chase & Co
New York
$16.2M 313,371 +310,171 +9,693%
Lord, Abbett & Co
20
Lord, Abbett & Co
New Jersey
$16M 307,967 -20,673 -6%
MWNA
21
Marshall Wace North America
New York
$15.4M 297,024 -210,109 -41%
SPPAM
22
Summit Partners Public Asset Management
Massachusetts
$14M 270,000 +10,000 +4%
Point72 Asset Management
23
Point72 Asset Management
Connecticut
$13.9M 268,451 -333,549 -55%
Adage Capital Partners
24
Adage Capital Partners
Massachusetts
$13M 250,000 – –
Massachusetts Financial Services
25
Massachusetts Financial Services
Massachusetts
$12.4M 239,110 +1,450 +0.6%
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