Capital Fund Management (CFM)
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Capital Fund Management (CFM)’s iRhythm Holdings IRTC Stock Holding History

Capital Fund Management (CFM)’s Portfolio IRTC Stock Details IRTC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.26M Buy
+10,594
New +$1.23M 0.01% 1617
2021
Q3 		– Sell
-11,041
Closed -$733K – 1656
2021
Q2 		$733K Sell
11,041
-5,765
-34% -$457K 0.01% 1224
2021
Q1 		$2.33M Buy
+16,806
New +$3.01M 0.03% 687
2019
Q1 		– Sell
-5,200
Closed -$361K – 1875
2018
Q4 		$361K Buy
+5,200
New +$394K ﹤0.01% 1527

Other funds holding IRTC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
EAM
Eventide Asset Management Boston, Massachusetts $7.48B AUM 104.76% 1-Year Est. Return

Capital Fund Management (CFM)'s IRTC Position: Q2 2026 in Review

Capital Fund Management (CFM) opened a new position in iRhythm Holdings (IRTC) in Q2 2026: 10,594 shares worth $1.26M. The stake represents 0.01% of the portfolio and ranks #1617 among its holdings. This is a return to the name: Capital Fund Management (CFM) previously reported a position in IRTC as recently as Q2 2021.

Capital Fund Management (CFM) first reported a position in IRTC in Q4 2018 and has held it in 4 quarters since. The position peaked at $2.33M in Q1 2021. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Capital Fund Management (CFM) held 10,594 shares of iRhythm Holdings worth $1.26M as of Q2 2026.
  • iRhythm Holdings was a new Capital Fund Management (CFM) position in Q2 2026.
  • iRhythm Holdings made up 0.01% of Capital Fund Management (CFM)'s portfolio in Q2 2026, its #1617 holding.
  • Capital Fund Management (CFM) first reported a position in iRhythm Holdings in Q4 2018 and has held it in 4 quarters since.
  • Capital Fund Management (CFM)'s iRhythm Holdings position peaked at $2.33M in Q1 2021.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Capital Fund Management (CFM)'s 13F filing for Q2 2026, filed 13 Aug 2026.