MWNA
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Marshall Wace North America’s iRhythm Holdings IRTC Stock Holding History

Marshall Wace North America’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
2021
Q3 		– Sell
-26,207
Closed -$1.74M – 1580
2021
Q2 		$1.74M Buy
26,207
+10,822
+70% +$858K 0.01% 847
2021
Q1 		$2.14M Buy
+15,385
New +$2.76M 0.01% 813
2020
Q3 		– Sell
-11,182
Closed -$1.3M – 1337
2020
Q2 		$1.3M Buy
+11,182
New +$1.23M 0.01% 692
2020
Q1 		– Sell
-6,971
Closed -$475K – 1409
2019
Q4 		$475K Buy
+6,971
New +$473K ﹤0.01% 835
2018
Q3 		– Sell
-82,081
Closed -$6.66M – 1131
2018
Q2 		$6.66M Buy
+82,081
New +$5.74M 0.04% 445
2017
Q4 		– Sell
-297,024
Closed -$15.4M – 1480
2017
Q3 		$15.4M Sell
297,024
-210,109
-41% -$9.51M 0.1% 266
2017
Q2 		$21.3M Buy
+507,133
New +$18.5M 0.16% 172

Other funds holding IRTC

Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $83.3B AUM 31.19% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.47T AUM 27.86% 1-Year Est. Return
CS
Credit Suisse Zurich, Switzerland $104B AUM 34.76% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $34.9B AUM 18.88% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $141B AUM 30.34% 1-Year Est. Return