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iRhythm Holdings

253 hedge funds and large institutions have $4B invested in iRhythm Holdings in 2024 Q1 according to their latest regulatory filings, with 52 funds opening new positions, 77 increasing their positions, 90 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed

148% more first-time investments, than exits

New positions opened: 52 | Existing positions closed: 21

14% more funds holding

Funds holding: 222253 (+31)

12% more capital invested

Capital invested by funds: $3.56B → $4B (+$443M)

2.94% more ownership

Funds ownership: 108.43%111.37% (+2.9%)

0% less call options, than puts

Call options by funds: $27.7M | Put options by funds: $27.7M

14% less repeat investments, than reductions

Existing positions increased: 77 | Existing positions reduced: 90

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
253
Holders Change
+31
Holders Change %
+13.96%
% of All Funds
3.64%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
52
Increased
77
Reduced
90
Closed
21
Calls
$27.7M
Puts
$27.7M
Net Calls
-$47K
Net Calls Change
+$2.43M
Name Holding Trade Value Shares
Change
Change in
Stake
California Public Employees Retirement System
76
California Public Employees Retirement System
California
$5.12M -$314K -2,793 -6%
RhumbLine Advisers
77
RhumbLine Advisers
Massachusetts
$5.04M +$69.7K +620 +1%
Baird Financial Group
78
Baird Financial Group
Wisconsin
$4.84M +$792K +7,043 +20%
BPC
79
Banque Pictet & Cie
Switzerland
$4.68M -$425K -3,780 -9%
Ameriprise
80
Ameriprise
Minnesota
$4.65M -$187K -1,666 -4%
Comerica Bank
81
Comerica Bank
Texas
$4.52M +$4.3M +38,204 +5,033%
UBS Group
82
UBS Group
Switzerland
$4.46M +$203K +1,802 +5%
Barclays
83
Barclays
United Kingdom
$4.24M -$1.31M -11,689 -24%
UBS AM
84
UBS AM
Illinois
$3.96M -$98.9K -880 -3%
SP
85
Steelhead Partners
Washington
$3.85M +$3.73M +33,200 New
Axa
86
Axa
France
$3.83M -$564K -5,013 -13%
FG
87
Formula Growth
Quebec, Canada
$3.71M +$3.6M +31,979 New
PAMP
88
Polar Asset Management Partners
Ontario, Canada
$3.57M +$3.46M +30,800 New
California State Teachers Retirement System (CalSTRS)
89
California State Teachers Retirement System (CalSTRS)
California
$3.56M -$184K -1,635 -5%
SCM
90
Shaolin Capital Management
Florida
$3.47M +$3.36M +29,900 New
State of New Jersey Common Pension Fund D
91
State of New Jersey Common Pension Fund D
New Jersey
$3.05M -$340K -3,024 -10%
MSK
92
Melissa S. Kampmann
$3.03M +$337K +3,000 +13%
Adage Capital Partners
93
Adage Capital Partners
Massachusetts
$2.9M +$2.81M +25,000 New
TI
94
Trexquant Investment
Connecticut
$2.56M -$1.6M -14,260 -39%
MOACM
95
Mutual of America Capital Management
New York
$2.53M -$199K -1,767 -8%
BMSSC
96
B. Metzler seel. Sohn & Co
Germany
$2.38M
MCM
97
McKinley Capital Management
Alaska
$2.31M
LP
98
LMR Partners
United Kingdom
$2.31M +$2.24M +19,900 New
Two Sigma Investments
99
Two Sigma Investments
New York
$2.31M +$2.24M +19,900 New
Royal Bank of Canada
100
Royal Bank of Canada
Ontario, Canada
$2.23M -$1.19M -10,623 -36%

IRTC Hedge Fund Activity: Q1 2024 in Review

253 of the 6,942 institutional investors tracked by Wall St. Rank reported a position in iRhythm Holdings (IRTC) for Q1 2024, worth a combined $4B — up 12% from $3.56B a quarter earlier.

Buyers outnumbered sellers: 52 funds opened new IRTC positions and 21 closed out — a net gain of 31 holders — while 77 added to existing stakes and 90 trimmed.

The largest buyer was Westfield Capital Management, opening a new position worth an estimated $56.5M. The largest seller was Summit Partners Public Asset Management, exiting entirely with an estimated $44.4M sold.

  • 253 institutional investors held iRhythm Holdings (IRTC) as of Q1 2024, up from 222 in Q4 2023.
  • Funds reported $4B of iRhythm Holdings stock for Q1 2024, up 12% quarter-over-quarter.
  • 52 funds opened new iRhythm Holdings positions in Q1 2024 and 21 closed out, a net change of +31 holders.
  • The largest iRhythm Holdings buyer in Q1 2024 was Westfield Capital Management, an estimated $56.5M added.
  • The largest iRhythm Holdings seller in Q1 2024 was Summit Partners Public Asset Management, an estimated $44.4M sold.

Based on aggregated 13F filings for Q1 2024.