Quanta Services Inc. (PWR)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	17,417,299	$4,427,129,059	0.08%
2.	Blackrock, Inc.	11,904,097	$3,025,783,523	0.06%
3.	Capital World Investors	8,323,848	$2,115,755,637	0.34%
4.	Jpmorgan Chase & Co	6,732,628	$1,711,299,677	0.12%
5.	State Street Corp	5,982,618	$1,520,661,843	0.06%