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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
California Public Employees Retirement System
51
California Public Employees Retirement System
California
$9.37M -$458K -2,553 -4%
Squarepoint
52
Squarepoint
New York
$9.35M +$11.3M +63,246 +1,540%
Swiss National Bank
53
Swiss National Bank
Switzerland
$9.16M +$215K +1,200 +2%
CSS
54
Cubist Systematic Strategies
Connecticut
$9.15M +$11.2M +62,323 +1,755%
Ameriprise
55
Ameriprise
Minnesota
$9.1M -$205K -1,144 -2%
State of Wisconsin Investment Board
56
State of Wisconsin Investment Board
Wisconsin
$8.72M +$161K +900 +1%
Carson Wealth (CWM LLC)
57
Carson Wealth (CWM LLC)
Nebraska
$8.3M
Balyasny Asset Management
58
Balyasny Asset Management
Illinois
$7.83M +$10.1M +56,421 New
TD Asset Management
59
TD Asset Management
Ontario, Canada
$7.64M +$1.55M +8,630 +19%
Federated Hermes
60
Federated Hermes
Pennsylvania
$7.22M -$4.12K -23 -0%
CLOS
61
Compagnie Lombard Odier SCmA
Switzerland
$6.97M +$8.99M +50,181 New
LOAMS
62
Lombard Odier Asset Management (Switzerland)
Switzerland
$6.97M +$8.99M +50,181 New
Thrivent Financial for Lutherans
63
Thrivent Financial for Lutherans
Minnesota
$6.66M +$8.6M +47,988 New
California State Teachers Retirement System (CalSTRS)
64
California State Teachers Retirement System (CalSTRS)
California
$6.06M -$7.35K -41 -0.1%
Ensign Peak Advisors
65
Ensign Peak Advisors
Utah
$5.82M +$1.79M +9,982 +31%
SIA
66
Sit Investment Associates
Minnesota
$5.21M +$1.19M +6,650 +22%
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
$4.96M -$1.08M -6,001 -14%
UBS AM
68
UBS AM
Illinois
$4.68M +$329K +1,835 +6%
Axa
69
Axa
France
$4.65M -$894K -4,989 -13%
Barclays
70
Barclays
United Kingdom
$4.63M +$3.91M +21,843 +190%
SEI Investments
71
SEI Investments
Pennsylvania
$4.6M -$24.9M -138,985 -83%
Two Sigma Investments
72
Two Sigma Investments
New York
$4.23M +$5.46M +30,493 New
MFAM
73
Motley Fool Asset Management
Virginia
$4.22M +$833K +4,650 +18%
BNP Paribas Financial Markets
74
BNP Paribas Financial Markets
France
$4.21M +$4.46M +24,904 +458%
Marshall Wace
75
Marshall Wace
United Kingdom
$4.21M +$5.43M +30,306 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.