PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021

Shares 201,900 Value ($000) $2,152 Avg Close $9.92 Range $7.21 - $13.99

Q4 2020

Shares 225,200 Value ($000) $1,665 Avg Close $5.56 Range $3.58 - $8.31

Q3 2020

Shares 532,500 Value ($000) $2,162 Avg Close $5.44 Range $3.73 - $6.90

Q2 2020

Shares 285,500 Value ($000) $1,468 Avg Close $4.61 Range $2.04 - $7.58

Q1 2020

Shares 90,544 Value ($000) $227 Avg Close $8.03 Range $1.36 - $12.12

Q4 2019

Shares 148,844 Value ($000) $1,675 Avg Close $8.94 Range $7.07 - $11.46

Q3 2019

Shares 143,944 Value ($000) $1,308 Avg Close $13.88 Range $8.68 - $21.83

Q2 2019

Shares 219,044 Value ($000) $4,534 Avg Close $21.24 Range $17.63 - $25.38

Q1 2019

Shares 84,800 Value ($000) $1,911 Avg Close $17.90 Range $11.78 - $23.32

Q4 2018

Shares 34,300 Value ($000) $422 Avg Close $16.47 Range $11.27 - $19.76

Q2 2018

Shares 289,700 Value ($000) $4,542 Avg Close $17.21 Range $14.00 - $20.91

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	201,900	$2,152	$9.92	$7.21 - $13.99
Q4 2020	225,200	$1,665	$5.56	$3.58 - $8.31
Q3 2020	532,500	$2,162	$5.44	$3.73 - $6.90
Q2 2020	285,500	$1,468	$4.61	$2.04 - $7.58
Q1 2020	90,544	$227	$8.03	$1.36 - $12.12
Q4 2019	148,844	$1,675	$8.94	$7.07 - $11.46
Q3 2019	143,944	$1,308	$13.88	$8.68 - $21.83
Q2 2019	219,044	$4,534	$21.24	$17.63 - $25.38
Q1 2019	84,800	$1,911	$17.90	$11.78 - $23.32
Q4 2018	34,300	$422	$16.47	$11.27 - $19.76
Q2 2018	289,700	$4,542	$17.21	$14.00 - $20.91