MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

Fortis Advisors, LLC's Holding History (CIK: 0001697478)

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

Q3 2019

Shares 15,978 Value ($000) $40 Avg Close $4.75 Range $2.36 - $7.91

Q2 2019

Shares 12,432 Value ($000) $86 Avg Close $12.71 Range $5.55 - $18.81

Q1 2019

Shares 9,593 Value ($000) $160 Avg Close $21.35 Range $16.27 - $24.62

Q4 2018

Shares 9,593 Value ($000) $172 Avg Close $24.57 Range $16.81 - $30.61

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	15,978	$40	$4.75	$2.36 - $7.91
Q2 2019	12,432	$86	$12.71	$5.55 - $18.81
Q1 2019	9,593	$160	$21.35	$16.27 - $24.62
Q4 2018	9,593	$172	$24.57	$16.81 - $30.61