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iRhythm Holdings
IRTC

208 hedge funds and large institutions have $2.92B invested in iRhythm Holdings in 2022 Q4 according to their latest regulatory filings, with 31 funds opening new positions, 71 increasing their positions, 75 reducing their positions, and 51 closing their positions.

New
Increased
Maintained
Reduced
Closed

23% more call options, than puts

Call options by funds: $27.3M | Put options by funds: $22.2M

0.5% more ownership

Funds ownership: 102.94% → 103.43% (+0.5%)

5% less repeat investments, than reductions

Existing positions increased: 71 | Existing positions reduced: 75

11% less funds holding

Funds holding: 233 → 208 (-25)

24% less capital invested

Capital invested by funds: $3.86B → $2.92B (-$943M)

39% less first-time investments, than exits

New positions opened: 31 | Existing positions closed: 51

80% less funds holding in top 10

Funds holding in top 10: 5 → 1 (-4)

Holders
208
Holders Change
-25
Holders Change %
-10.73%
% of All Funds
3.34%
Holding in Top 10
1
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-80%
% of All Funds
0.02%
New
31
Increased
71
Reduced
75
Closed
51
Calls
$27.3M
Puts
$22.2M
Net Calls
+$5.12M
Net Calls Change
-$7.85M

Top Buyers

1
Artisan Partners
Artisan Partners
Wisconsin
+$106M
2
SPC
Slate Path Capital
New York
+$38.1M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
+$25.1M
4
ETC
Exchange Traded Concepts
Oklahoma
+$18.2M
5
Capital Research Global Investors
Capital Research Global Investors
California
+$16.3M

Top Sellers

1
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$51.9M
2
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
-$36.5M
3
Holocene Advisors
Holocene Advisors
New York
-$23.5M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$20.4M
5
SI
Sofinnova Investments
California
-$17.6M
Name Holding Trade Value Shares
Change 		Change in
Stake
JMF
201
Johnson Midwest Financial
Iowa
$1K – – –
BTI
202
Blue Trust Inc
Georgia
$1K +$762 +7 New
HI
203
Harbour Investments
Wisconsin
$937 -$1.2K -11 -52%
AWM
204
Accurate Wealth Management
Florida
$792 +$871 +8 New
GRP
205
Global Retirement Partners
California
$749 +$871 +8 New
IFAM
206
Institutional & Family Asset Management
Colorado
$281 – – –
FGAM
207
Financial Gravity Asset Management
Texas
$135 +$10.2K +94 New
EI
208
Ellevest Inc
New York
$94 -$980 -9 -90%
SI
209
Sofinnova Investments
California
– -$17.6M -140,095 Closed
BM
210
Bridger Management
New York
– -$15.1M -120,879 Closed
VIA
211
Vident Investment Advisory
Georgia
– -$14.6M -116,919 Closed
ACM
212
Atika Capital Management
New York
– -$13.7M -109,000 Closed
William Blair Investment Management
213
William Blair Investment Management
Illinois
– -$8.03M -64,132 Closed
IM
214
Islet Management
New York
– -$6.63M -52,942 Closed
PVI
215
Pura Vida Investments
New York
– -$5.17M -47,521 Closed
Calamos Advisors
216
Calamos Advisors
Illinois
– -$5.67M -45,262 Closed
Bank of Montreal
217
Bank of Montreal
Ontario, Canada
– -$6.97K -44,988 Closed
LCG
218
Lisanti Capital Growth
New York
– -$5.35M -42,710 Closed
CM
219
Castleark Management
Illinois
– -$4.52M -36,100 Closed
Nomura Holdings
220
Nomura Holdings
Japan
– -$3.84M -35,246 Closed
TC
221
TwinBeech Capital
New York
– -$3.23M -25,792 Closed
PHP
222
Parkman Healthcare Partners
Connecticut
– -$3.19M -25,458 Closed
State of Tennessee, Department of Treasury
223
State of Tennessee, Department of Treasury
Tennessee
– -$2.51M -20,000 Closed
EF
224
Empowered Funds
Pennsylvania
– -$1.68M -13,402 Closed
ECM
225
ExodusPoint Capital Management
New York
– -$1.5M -11,940 Closed
7 8
9
10 11

IRTC Hedge Fund Activity: Q4 2022 in Review

208 of the 6,221 institutional investors tracked by Wall St. Rank reported a position in iRhythm Holdings (IRTC) for Q4 2022, worth a combined $2.92B — down 24% from $3.86B a quarter earlier.

Sellers outnumbered buyers: 51 funds closed out of IRTC and 31 opened new positions — a net loss of 20 holders — while 75 trimmed existing stakes and 71 added.

The largest buyer was Artisan Partners, adding an estimated $106M. The largest seller was Janus Henderson Group, cutting an estimated $51.9M.

  • 208 institutional investors held iRhythm Holdings (IRTC) as of Q4 2022, down from 233 in Q3 2022.
  • Funds reported $2.92B of iRhythm Holdings stock for Q4 2022, down 24% quarter-over-quarter.
  • 31 funds opened new iRhythm Holdings positions in Q4 2022 and 51 closed out, a net change of -20 holders.
  • The largest iRhythm Holdings buyer in Q4 2022 was Artisan Partners, an estimated $106M added.
  • The largest iRhythm Holdings seller in Q4 2022 was Janus Henderson Group, an estimated $51.9M sold.

Based on aggregated 13F filings for Q4 2022.