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iRhythm Holdings
IRTC

213 hedge funds and large institutions have $3.43B invested in iRhythm Holdings in 2021 Q4 according to their latest regulatory filings, with 54 funds opening new positions, 60 increasing their positions, 70 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

300% more funds holding in top 10

Funds holding in top 10: 1 → 4 (+3)

214% more call options, than puts

Call options by funds: $54.6M | Put options by funds: $17.4M

109% more capital invested

Capital invested by funds: $1.64B → $3.43B (+$1.78B)

108% more first-time investments, than exits

New positions opened: 54 | Existing positions closed: 26

15% more funds holding

Funds holding: 186 → 213 (+27)

3.56% more ownership

Funds ownership: 95.43% → 98.98% (+3.6%)

14% less repeat investments, than reductions

Existing positions increased: 60 | Existing positions reduced: 70

Holders
213
Holders Change
+27
Holders Change %
+14.52%
% of All Funds
3.28%
Holding in Top 10
4
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+300%
% of All Funds
0.06%
New
54
Increased
60
Reduced
70
Closed
26
Calls
$54.6M
Puts
$17.4M
Net Calls
+$37.2M
Net Calls Change
+$21.4M

Top Buyers

1
Capital Research Global Investors
Capital Research Global Investors
California
+$71.3M
2
PHS
PFM Health Sciences
California
+$48.1M
3
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$45.3M
4
Invesco
Invesco
Georgia
+$28.4M
5
BM
Bridger Management
New York
+$28.4M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$74M
2
CCM
Camber Capital Management
Massachusetts
-$27.8M
3
VIA
Vident Investment Advisory
Georgia
-$27.4M
4
Sands Capital Management
Sands Capital Management
Virginia
-$23.1M
5
Millennium Management
Millennium Management
New York
-$22.1M
Name Holding Trade Value Shares
Change 		Change in
Stake
Sands Capital Management
1
Sands Capital Management
Virginia
$358M -$23.1M -251,557 -8%
Vanguard Group
2
Vanguard Group
Pennsylvania
$315M +$1.53M +16,683 +0.6%
BlackRock
3
BlackRock
New York
$245M +$2.17M +23,695 +1%
JP Morgan Chase
4
JP Morgan Chase
New York
$245M +$26.4M +287,654 +16%
Mackenzie Financial
5
Mackenzie Financial
Ontario, Canada
$198M -$19.9M -216,621 -11%
CS
6
Credit Suisse
Switzerland
$135M -$2.07M -22,536 -2%
Capital Research Global Investors
7
Capital Research Global Investors
California
$103M +$71.3M +777,000 +777%
LOM
8
LTS One Management
New York
$94.2M +$73.4M +800,000 New
State Street
9
State Street
Massachusetts
$91M -$9.56M -104,199 -12%
William Blair & Company
10
William Blair & Company
Illinois
$88.9M +$5.95M +64,831 +9%
Fiera Capital (Canada)
11
Fiera Capital (Canada)
Quebec, Canada
$87.9M +$13.3M +144,674 +24%
Invesco
12
Invesco
Georgia
$87.3M +$28.4M +309,520 +72%
Holocene Advisors
13
Holocene Advisors
New York
$74.3M +$23.5M +255,924 +68%
T. Rowe Price Associates
14
T. Rowe Price Associates
Maryland
$61.7M +$16.7M +182,413 +53%
PHS
15
PFM Health Sciences
California
$61.7M +$48.1M +523,982 New
Citadel Advisors
16
Citadel Advisors
Florida
$59.9M -$9.83M -107,121 -17%
Geode Capital Management
17
Geode Capital Management
Massachusetts
$59.8M +$1.47M +15,996 +3%
Janus Henderson Group
18
Janus Henderson Group
United Kingdom
$58.1M +$45.3M +493,636 New
RSCM
19
Rock Springs Capital Management
Maryland
$51M -$1.38M -15,000 -3%
Bessemer Group
20
Bessemer Group
New Jersey
$50.1M – – –
BNP Paribas Asset Management
21
BNP Paribas Asset Management
France
$45.7M +$2.91M +31,773 +9%
SIMG
22
Stephens Investment Management Group
Texas
$41M +$6.87M +74,915 +27%
Norges Bank
23
Norges Bank
Norway
$39.4M -$1.46M -15,947 -5%
Bank of New York Mellon
24
Bank of New York Mellon
New York
$36.9M -$2.8M -30,521 -9%
BM
25
Bridger Management
New York
$36.4M +$28.4M +309,100 New
1
2 3 4 5

IRTC Hedge Fund Activity: Q4 2021 in Review

213 of the 6,498 institutional investors tracked by Wall St. Rank reported a position in iRhythm Holdings (IRTC) for Q4 2021, worth a combined $3.43B — up 109% from $1.64B a quarter earlier.

Buyers outnumbered sellers: 54 funds opened new IRTC positions and 26 closed out — a net gain of 28 holders — while 60 added to existing stakes and 70 trimmed.

The largest buyer was Capital Research Global Investors, adding an estimated $71.3M. The largest seller was Wellington Management Group, cutting an estimated $74M.

  • 213 institutional investors held iRhythm Holdings (IRTC) as of Q4 2021, up from 186 in Q3 2021.
  • Funds reported $3.43B of iRhythm Holdings stock for Q4 2021, up 109% quarter-over-quarter.
  • 54 funds opened new iRhythm Holdings positions in Q4 2021 and 26 closed out, a net change of +28 holders.
  • The largest iRhythm Holdings buyer in Q4 2021 was Capital Research Global Investors, an estimated $71.3M added.
  • The largest iRhythm Holdings seller in Q4 2021 was Wellington Management Group, an estimated $74M sold.

Based on aggregated 13F filings for Q4 2021.