PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

HighMark Wealth Management LLC's Holding History (CIK: 0001802451)

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

Q1 2021

Shares 1,500 Value ($000) $16 Avg Close $9.92 Range $7.21 - $13.99

Q4 2020

Shares 6,000 Value ($000) $44 Avg Close $5.56 Range $3.58 - $8.31

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	1,500	$16	$9.92	$7.21 - $13.99
Q4 2020	6,000	$44	$5.56	$3.58 - $8.31