WCM Investment Management
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WCM Investment Management’s iRhythm Holdings IRTC Stock Holding History

WCM Investment Management’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 		$12.7M Sell
107,000
-1,078
-1% -$125K 0.02% 138
2026
Q1 		$12.3M Buy
108,078
+34,786
+47% +$5.02M 0.03% 130
2025
Q4 		$13.1M Sell
73,292
-3,969
-5% -$703K 0.03% 137
2025
Q3 		$13.1M Buy
77,261
+91
+0.1% +$14.5K 0.03% 130
2025
Q2 		$11.9M Sell
77,170
-61,267
-44% -$7.92M 0.03% 139
2025
Q1 		$14.5M Buy
138,437
+235
+0.2% +$24.9K 0.04% 114
2024
Q4 		$12M Sell
138,202
-2,931
-2% -$230K 0.03% 146
2024
Q3 		$10.3M Sell
141,133
-142
-0.1% -$11.3K 0.02% 148
2024
Q2 		$14.7M Buy
141,275
+2,906
+2% +$297K 0.03% 123
2024
Q1 		$16.1M Buy
138,369
+5,174
+4% +$582K 0.04% 114
2023
Q4 		$14.5M Buy
133,195
+50,673
+61% +$4.42M 0.04% 127
2023
Q3 		$7.78M Buy
+82,522
New +$8.39M 0.02% 138

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

WCM Investment Management's IRTC Position: Q2 2026 in Review

WCM Investment Management reduced its iRhythm Holdings (IRTC) stake by 1% in Q2 2026, selling an estimated $125K and leaving 107,000 shares worth $12.7M. The position accounts for 0.02% of the portfolio, ranked #138.

WCM Investment Management first reported a position in IRTC in Q3 2023 and has held it in 12 quarters since. The position peaked at $16.1M in Q1 2024. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • WCM Investment Management held 107,000 shares of iRhythm Holdings worth $12.7M as of Q2 2026.
  • WCM Investment Management sold 1,078 iRhythm Holdings shares in Q2 2026, an estimated $125K.
  • iRhythm Holdings made up 0.02% of WCM Investment Management's portfolio in Q2 2026, its #138 holding.
  • WCM Investment Management first reported a position in iRhythm Holdings in Q3 2023 and has held it in 12 quarters since.
  • WCM Investment Management's iRhythm Holdings position peaked at $16.1M in Q1 2024.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on WCM Investment Management's 13F filing for Q2 2026, filed 13 Aug 2026.