PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

GLOBEFLEX CAPITAL L P's Holding History (CIK: 0000921531)

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

Q1 2020

Shares 49,842 Value ($000) $125 Avg Close $8.03 Range $1.36 - $12.12

Q4 2019

Shares 49,883 Value ($000) $561 Avg Close $8.94 Range $7.07 - $11.46

Q3 2019

Shares 51,810 Value ($000) $471 Avg Close $13.88 Range $8.68 - $21.83

Q2 2019

Shares 51,810 Value ($000) $1,072 Avg Close $21.24 Range $17.63 - $25.38

Q3 2018

Shares 65,220 Value ($000) $1,075 Avg Close $16.12 Range $14.32 - $17.89

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	49,842	$125	$8.03	$1.36 - $12.12
Q4 2019	49,883	$561	$8.94	$7.07 - $11.46
Q3 2019	51,810	$471	$13.88	$8.68 - $21.83
Q2 2019	51,810	$1,072	$21.24	$17.63 - $25.38
Q3 2018	65,220	$1,075	$16.12	$14.32 - $17.89