PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q1 2019

Shares 207,235 Value ($000) $4,671 Avg Close $17.90 Range $11.78 - $23.32

Q4 2018

Shares 199,574 Value ($000) $2,459 Avg Close $16.47 Range $11.27 - $19.76

Q3 2018

Shares 214,410 Value ($000) $3,535 Avg Close $16.12 Range $14.32 - $17.89

Q2 2018

Shares 214,906 Value ($000) $3,370 Avg Close $17.21 Range $14.00 - $20.91

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	207,235	$4,671	$17.90	$11.78 - $23.32
Q4 2018	199,574	$2,459	$16.47	$11.27 - $19.76
Q3 2018	214,410	$3,535	$16.12	$14.32 - $17.89
Q2 2018	214,906	$3,370	$17.21	$14.00 - $20.91