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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
QT
126
Quantbot Technologies
New York
$725K +$567K +3,163 +153%
Jane Street
127
Jane Street
New York
$714K -$299K -1,666 -24%
OAM
128
Oppenheimer Asset Management
New York
$706K -$1.07K -6 -0.1%
Bank of Montreal
129
Bank of Montreal
Ontario, Canada
$691K -$3.39M -18,942 -79%
Osaic Holdings
130
Osaic Holdings
Arizona
$635K +$299K +1,669 +57%
CCM
131
Conway Capital Management
California
$632K -$115K -640 -12%
CF
132
CNA Financial
Illinois
$628K -$138K -770 -15%
E
133
Ergoteles
New York
$625K +$806K +4,500 New
TI
134
Trexquant Investment
Connecticut
$595K +$768K +4,283 New
GLA
135
Great Lakes Advisors
Illinois
$592K -$20.1M -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 -$72K -402 -9%
NA
138
NewEdge Advisors
Louisiana
$567K +$244K +1,360 +50%
RJA
139
Raymond James & Associates
Florida
$563K +$230K +1,282 +46%
MSL
140
Mackay Shields LLC
New York
$528K -$233K -1,300 -25%
B
141
Bailard
California
$506K -$58.6K -327 -8%
Millennium Management
142
Millennium Management
New York
$444K +$572K +3,194 New
Zurich Cantonal Bank
143
Zurich Cantonal Bank
Switzerland
$425K -$64.3K -359 -11%
Teacher Retirement System of Texas
144
Teacher Retirement System of Texas
Texas
$423K +$105K +587 +24%
Canada Pension Plan Investment Board
145
Canada Pension Plan Investment Board
Ontario, Canada
$423K +$296K +1,654 +119%
BPCE
146
Bank Pictet & Cie (Europe)
Germany
$411K +$531K +2,963 New
VRS
147
Virginia Retirement Systems
Virginia
$403K -$89.6K -500 -15%
ACM
148
AlphaCrest Capital Management
New York
$391K +$504K +2,813 New
SG Americas Securities
149
SG Americas Securities
New York
$382K +$334K +1,864 +211%
Russell Investments Group
150
Russell Investments Group
United Kingdom
$369K +$477K +2,661 New

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.