CCIA
IRTC icon

Campbell & Co Investment Adviser’s iRhythm Holdings IRTC Stock Holding History

Campbell & Co Investment Adviser’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 		$2.62M Sell
22,024
-18,794
-46% -$2.18M 0.14% 237
2026
Q1 		$4.82M Buy
+40,818
New +$5.89M 0.27% 74
2023
Q4 		– Sell
-10,059
Closed -$948K – 1207
2023
Q3 		$948K Buy
10,059
+137
+1% +$13.9K 0.11% 288
2023
Q2 		$1.04M Buy
+9,922
New +$1.19M 0.18% 140

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

Campbell & Co Investment Adviser's IRTC Position: Q2 2026 in Review

Campbell & Co Investment Adviser reduced its iRhythm Holdings (IRTC) stake by 46% in Q2 2026, selling an estimated $2.18M and leaving 22,024 shares worth $2.62M. The position accounts for 0.14% of the portfolio, ranked #237.

Campbell & Co Investment Adviser first reported a position in IRTC in Q2 2023 and has held it in 4 quarters since. The position peaked at $4.82M in Q1 2026. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Campbell & Co Investment Adviser held 22,024 shares of iRhythm Holdings worth $2.62M as of Q2 2026.
  • Campbell & Co Investment Adviser sold 18,794 iRhythm Holdings shares in Q2 2026, an estimated $2.18M.
  • iRhythm Holdings made up 0.14% of Campbell & Co Investment Adviser's portfolio in Q2 2026, its #237 holding.
  • Campbell & Co Investment Adviser first reported a position in iRhythm Holdings in Q2 2023 and has held it in 4 quarters since.
  • Campbell & Co Investment Adviser's iRhythm Holdings position peaked at $4.82M in Q1 2026.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q2 2026, filed 3 Aug 2026.