MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

BOKF, NA's Holding History (CIK: 0000009634)

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

Q4 2018
Shares 12,347 Value ($000) $222 Avg Close $24.57 Range $16.81 - $30.61