Propetro Holding Corp. (PUMP)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Stanley-laman Group, Ltd.	404,770	$2,975,059	0.46%
2.	Rhumbline Advisers	283,958	$2,087,073	0%
3.	North Star Investment Management Corp.	262,425	$1,928,824	0.14%
4.	Wedge Capital Management L L P	148,363	$1,090,468	0.02%
5.	Summerhaven Investment Management, Llc	96,572	$709,804	0.5%