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iRhythm Holdings
IRTC

222 hedge funds and large institutions have $4.77B invested in iRhythm Holdings in 2022 Q1 according to their latest regulatory filings, with 40 funds opening new positions, 74 increasing their positions, 79 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed

786% more call options, than puts

Call options by funds: $50.1M | Put options by funds: $5.65M

48% more first-time investments, than exits

New positions opened: 40 | Existing positions closed: 27

39% more capital invested

Capital invested by funds: $3.43B → $4.77B (+$1.35B)

4% more funds holding

Funds holding: 213 → 222 (+9)

3.87% more ownership

Funds ownership: 98.98% → 102.85% (+3.9%)

0% more funds holding in top 10

Funds holding in top 10: 4 → 4 (0)

6% less repeat investments, than reductions

Existing positions increased: 74 | Existing positions reduced: 79

Holders
222
Holders Change
+9
Holders Change %
+4.23%
% of All Funds
3.5%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.06%
New
40
Increased
74
Reduced
79
Closed
27
Calls
$50.1M
Puts
$5.65M
Net Calls
+$44.4M
Net Calls Change
+$7.21M

Top Buyers

1
AllianceBernstein
AllianceBernstein
Tennessee
+$139M
2
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
+$69.1M
3
Capital Research Global Investors
Capital Research Global Investors
California
+$68.6M
4
LOM
LTS One Management
New York
+$27M
5
Artisan Partners
Artisan Partners
Wisconsin
+$22.8M

Top Sellers

1
Mackenzie Financial
Mackenzie Financial
Ontario, Canada
-$65.4M
2
JP Morgan Chase
JP Morgan Chase
New York
-$59.1M
3
CS
Credit Suisse
Switzerland
-$34.8M
4
Wellington Management Group
Wellington Management Group
Massachusetts
-$27.3M
5
HCM
Hitchwood Capital Management
New York
-$21.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
Squarepoint
101
Squarepoint
New York
$2.48M +$1.68M +13,047 +483%
EGI
102
EAM Global Investors
California
$2.36M +$1.93M +15,015 New
Stifel Financial
103
Stifel Financial
Missouri
$2.36M -$14.1K -110 -0.7%
SSA
104
Schonfeld Strategic Advisors
New York
$2.36M +$1.93M +15,000 New
AIG
105
American International Group
New York
$2.31M -$132K -1,031 -7%
Mitsubishi UFJ Asset Management
106
Mitsubishi UFJ Asset Management
Japan
$2.18M -$82.3K -641 -4%
AQR Capital Management
107
AQR Capital Management
Connecticut
$2.15M +$1.01M +7,884 +137%
PCM
108
Prelude Capital Management
New York
$2.07M -$1.3M -10,130 -44%
EI
109
EAM Investors
California
$2.07M +$1.69M +13,137 New
DY
110
Dowling & Yahnke
California
$2.06M +$982K +7,645 +140%
SO
111
STRS Ohio
Ohio
$1.94M +$167K +1,300 +12%
PAM
112
Panagora Asset Management
Massachusetts
$1.84M -$332K -2,587 -18%
VOYA Investment Management
113
VOYA Investment Management
Georgia
$1.82M +$14.4K +112 +1%
State Board of Administration of Florida Retirement System
114
State Board of Administration of Florida Retirement System
Florida
$1.74M -$73.2K -570 -5%
OAM
115
Oppenheimer Asset Management
New York
$1.51M -$110K -858 -8%
WF
116
WoodTrust Financial
Wisconsin
$1.46M -$64.2K -500 -5%
Osaic Holdings
117
Osaic Holdings
Arizona
$1.41M +$772K +6,009 +204%
Principal Financial Group
118
Principal Financial Group
Iowa
$1.38M +$27.5K +214 +3%
ASRS
119
Arizona State Retirement System
Arizona
$1.25M +$5.14K +40 +0.5%
PGM
120
Parian Global Management
New York
$1.24M -$5.98M -46,568 -85%
Ensign Peak Advisors
121
Ensign Peak Advisors
Utah
$1.22M +$276K +2,150 +38%
CSS
122
Cubist Systematic Strategies
Connecticut
$1.14M -$511K -3,981 -36%
SG Americas Securities
123
SG Americas Securities
New York
$1.01M -$212K -1,649 -20%
WG
124
Winton Group
United Kingdom
$996K +$10K +78 +1%
Citigroup
125
Citigroup
New York
$965K -$911K -7,096 -54%
3 4
5
6 7

IRTC Hedge Fund Activity: Q1 2022 in Review

222 of the 6,340 institutional investors tracked by Wall St. Rank reported a position in iRhythm Holdings (IRTC) for Q1 2022, worth a combined $4.77B — up 39% from $3.43B a quarter earlier.

Buyers outnumbered sellers: 40 funds opened new IRTC positions and 27 closed out — a net gain of 13 holders — while 74 added to existing stakes and 79 trimmed.

The largest buyer was AllianceBernstein, adding an estimated $139M. The largest seller was Mackenzie Financial, cutting an estimated $65.4M.

  • 222 institutional investors held iRhythm Holdings (IRTC) as of Q1 2022, up from 213 in Q4 2021.
  • Funds reported $4.77B of iRhythm Holdings stock for Q1 2022, up 39% quarter-over-quarter.
  • 40 funds opened new iRhythm Holdings positions in Q1 2022 and 27 closed out, a net change of +13 holders.
  • The largest iRhythm Holdings buyer in Q1 2022 was AllianceBernstein, an estimated $139M added.
  • The largest iRhythm Holdings seller in Q1 2022 was Mackenzie Financial, an estimated $65.4M sold.

Based on aggregated 13F filings for Q1 2022.