MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

DUPONT CAPITAL MANAGEMENT CORP's Holding History (CIK: 0001128251)

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

Q1 2019

Shares 16,264 Value ($000) $271 Avg Close $21.35 Range $16.27 - $24.62

Q2 2017

Shares 40,530 Value ($000) $754 Avg Close $18.67 Range $15.80 - $22.31

Q1 2017

Shares 27,865 Value ($000) $599 Avg Close $19.07 Range $15.07 - $24.54

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	16,264	$271	$21.35	$16.27 - $24.62
Q2 2017	40,530	$754	$18.67	$15.80 - $22.31
Q1 2017	27,865	$599	$19.07	$15.07 - $24.54