Propetro Holding Corp. (PUMP)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	14,867,695	$109,277,559	0%
2.	Vanguard Group Inc	10,171,166	$74,758,070	0%
3.	Dimensional Fund Advisors Lp	6,513,364	$47,872,816	0.01%
4.	State Street Corp	3,683,742	$27,075,504	0%
5.	American Century Companies Inc	3,449,060	$25,350,591	0.02%