MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

OPPENHEIMER ASSET MANAGEMENT INC.'s Holding History (CIK: 0001269119)

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

Q1 2019
Shares 4,398 Value ($000) $73 Avg Close $21.35 Range $16.27 - $24.62
Q4 2018
Shares 4,073 Value ($000) $73 Avg Close $24.57 Range $16.81 - $30.61