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iRhythm Holdings

217 hedge funds and large institutions have $4.32B invested in iRhythm Holdings in 2021 Q1 according to their latest regulatory filings, with 52 funds opening new positions, 64 increasing their positions, 79 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed

105% more call options, than puts

Call options by funds: $35.9M | Put options by funds: $17.5M

8% less funds holding

Funds holding: 235217 (-18)

8.49% less ownership

Funds ownership: 115.68%107.19% (-8.5%)

19% less repeat investments, than reductions

Existing positions increased: 64 | Existing positions reduced: 79

24% less first-time investments, than exits

New positions opened: 52 | Existing positions closed: 68

45% less capital invested

Capital invested by funds: $7.9B → $4.32B (-$3.57B)

100% less funds holding in top 10

Funds holding in top 10: 20 (-2)

Holders
217
Holders Change
-18
Holders Change %
-7.66%
% of All Funds
3.81%
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
68
Calls
$35.9M
Puts
$17.5M
Net Calls
+$18.3M
Net Calls Change
+$56.8M
Name Holding Trade Value Shares
Change
Change in
Stake
EGM
101
Engineers Gate Manager
New York
$1.33M +$1.72M +9,609 New
CM
102
Caption Management
Oklahoma
$1.32M +$1.7M +9,500 New
AQR Capital Management
103
AQR Capital Management
Connecticut
$1.25M -$534K -2,981 -25%
GH
104
GAM Holding
Switzerland
$1.24M +$1.6M +8,903 New
Citigroup
105
Citigroup
New York
$1.19M -$1.5M -8,362 -49%
Neuberger Berman Group
106
Neuberger Berman Group
New York
$1.17M -$115M -643,214 -99%
ASRS
107
Arizona State Retirement System
Arizona
$1.17M +$16.8K +94 +1%
BPC
108
Banque Pictet & Cie
Switzerland
$1.14M +$1.47M +8,181 New
MLICM
109
Metropolitan Life Insurance Company (MetLife)
New York
$1.08M -$50.4K -281 -3%
ProShare Advisors
110
ProShare Advisors
Maryland
$1.07M +$237K +1,321 +21%
CIBC Private Wealth Group
111
CIBC Private Wealth Group
Georgia
$1.07M -$160K -893 -10%
Skandinaviska Enskilda Banken (SEB)
112
Skandinaviska Enskilda Banken (SEB)
Sweden
$1.06M +$923K +5,149 +205%
AIM
113
Aigen Investment Management
New York
$1.06M +$672K +3,748 +97%
UBS Group
114
UBS Group
Switzerland
$1.05M +$1.01M +5,614 +283%
Mitsubishi UFJ Asset Management
115
Mitsubishi UFJ Asset Management
Japan
$1.01M +$610K +3,401 +87%
Los Angeles Capital Management
116
Los Angeles Capital Management
California
$1M -$150K -835 -10%
WG
117
Winton Group
United Kingdom
$1M +$702K +3,918 +118%
WMSA
118
Weiss Multi-Strategy Advisers
New York
$942K -$218K -1,218 -15%
Stifel Financial
119
Stifel Financial
Missouri
$917K -$411K -2,294 -26%
Sumitomo Mitsui Trust Group
120
Sumitomo Mitsui Trust Group
Japan
$907K -$1.14M -6,366 -49%
Nomura Holdings
121
Nomura Holdings
Japan
$904K +$1.16M +6,500 New
Susquehanna International Group
122
Susquehanna International Group
Pennsylvania
$903K +$97.5K +544 +9%
Lazard Asset Management
123
Lazard Asset Management
New York
$883K -$103K -576 -8%
Tudor Investment Corp
124
Tudor Investment Corp
Connecticut
$763K +$984K +5,493 New
Handelsbanken Fonder
125
Handelsbanken Fonder
Sweden
$750K -$53.8K -300 -5%

IRTC Hedge Fund Activity: Q1 2021 in Review

217 of the 5,695 institutional investors tracked by Wall St. Rank reported a position in iRhythm Holdings (IRTC) for Q1 2021, worth a combined $4.32B — down 45% from $7.9B a quarter earlier.

Sellers outnumbered buyers: 68 funds closed out of IRTC and 52 opened new positions — a net loss of 16 holders — while 79 trimmed existing stakes and 64 added.

The largest buyer was Credit Suisse, adding an estimated $65.4M. The largest seller was Jackson Square Partners, exiting entirely with an estimated $176M sold.

  • 217 institutional investors held iRhythm Holdings (IRTC) as of Q1 2021, down from 235 in Q4 2020.
  • Funds reported $4.32B of iRhythm Holdings stock for Q1 2021, down 45% quarter-over-quarter.
  • 52 funds opened new iRhythm Holdings positions in Q1 2021 and 68 closed out, a net change of -16 holders.
  • The largest iRhythm Holdings buyer in Q1 2021 was Credit Suisse, an estimated $65.4M added.
  • The largest iRhythm Holdings seller in Q1 2021 was Jackson Square Partners, an estimated $176M sold.

Based on aggregated 13F filings for Q1 2021.