Qube Research & Technologies (QRT)
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Qube Research & Technologies (QRT)’s iRhythm Holdings IRTC Stock Holding History

Qube Research & Technologies (QRT)’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
Q1 		$26.8M Buy
226,884
+82,270
+57% +$11.9M 0.04% 709
2025
Q4 		$25.7M Sell
144,614
-22,248
-13% -$3.94M 0.04% 787
2025
Q3 		$28.7M Buy
166,862
+119,437
+252% +$19M 0.04% 716
2025
Q2 		$7.3M Buy
+47,425
New +$6.13M 0.01% 1481
2025
Q1 		– Sell
-6,159
Closed -$555K – 3719
2024
Q4 		$555K Sell
6,159
-4,824
-44% -$379K ﹤0.01% 2419
2024
Q3 		$815K Buy
+10,983
New +$875K ﹤0.01% 2102
2023
Q1 		– Sell
-11,170
Closed -$1.05M – 2781
2022
Q4 		$1.05M Sell
11,170
-10,071
-47% -$1.1M 0.01% 1211
2022
Q3 		$2.66M Buy
+21,241
New +$3.07M 0.02% 817
2021
Q3 		– Sell
-27,590
Closed -$1.83M – 2482
2021
Q2 		$1.83M Buy
27,590
+9,322
+51% +$739K 0.02% 733
2021
Q1 		$2.54M Buy
+18,268
New +$3.27M 0.04% 554
2020
Q4 		– Sell
-1,282
Closed -$305K – 2001
2020
Q3 		$305K Sell
1,282
-1,284
-50% -$227K ﹤0.01% 1240
2020
Q2 		$297K Buy
+2,566
New +$283K ﹤0.01% 1303

Other funds holding IRTC

BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Millennium Management
Millennium Management New York $134B AUM 35.51% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $61.3B AUM 26.25% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Holocene Advisors
Holocene Advisors New York $41.3B AUM 42.97% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return