MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

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

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

Q1 2019

Shares 72,059 Value ($000) $1,200 Avg Close $21.35 Range $16.27 - $24.62

Q4 2018

Shares 61,459 Value ($000) $1,105 Avg Close $24.57 Range $16.81 - $30.61

Q3 2018

Shares 128,200 Value ($000) $3,731 Avg Close $32.95 Range $25.64 - $40.75

Q2 2018

Shares 42,300 Value ($000) $1,436 Avg Close $35.13 Range $28.34 - $42.30

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	72,059	$1,200	$21.35	$16.27 - $24.62
Q4 2018	61,459	$1,105	$24.57	$16.81 - $30.61
Q3 2018	128,200	$3,731	$32.95	$25.64 - $40.75
Q2 2018	42,300	$1,436	$35.13	$28.34 - $42.30