Irhythm Technologies Inc. (IRTC)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	3,108,194	$325,365,747	0.01%
2.	Blackrock, Inc.	2,703,345	$282,986,155	0.01%
3.	Mackenzie Financial Corp	1,155,954	$121,005,265	0.17%
4.	Blair William & Co	789,999	$82,697,074	0.25%
5.	Westfield Capital Management Co Lp	617,078	$64,595,725	0.31%