Quanta Services Inc. (PWR)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	11,904,097	$3,025,783,523	0.06%
2.	Bank Of New York Mellon Corp	1,052,982	$267,646,923	0.05%
3.	Massachusetts Financial Services Co	969,276	$246,370,573	0.08%
4.	Jennison Associates Llc	620,973	$157,838,816	0.11%
5.	Pictet Asset Management Holding Sa	580,954	$147,666,888	0.16%