Quanta Services Inc. (PWR)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	13,061,264	$9,404,632,576	0.14%
2.	Vanguard Capital Management Llc	9,802,251	$7,058,012,810	0.15%
3.	Vanguard Portfolio Management Llc	6,927,511	$4,988,085,021	0.22%
4.	State Street Corp	6,581,807	$4,739,164,312	0.14%
5.	Jpmorgan Chase & Co	5,308,495	$3,792,655,986	0.21%