PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

Note: Option positions (PUT/CALL) are excluded.

Q4 2017

Shares 329,153 Value ($000) $6,636 Avg Close $16.95 Range $13.26 - $20.60

Q2 2017

Shares 39,503 Value ($000) $551 Avg Close $13.44 Range $11.68 - $15.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	329,153	$6,636	$16.95	$13.26 - $20.60
Q2 2017	39,503	$551	$13.44	$11.68 - $15.30