Propetro Holding Corp. (PUMP)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	16,081,523	$150,040,610	0%
2.	Vanguard Group Inc	10,583,726	$98,746,164	0%
3.	Dimensional Fund Advisors Lp	6,492,646	$60,575,851	0.01%
4.	State Street Corp	3,735,531	$34,852,504	0%
5.	American Century Companies Inc	3,236,135	$30,193,140	0.01%