MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q2 2018
Shares 106,841 Value ($000) $3,628 Avg Close $35.13 Range $28.34 - $42.30