MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000922127)

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

Q4 2018
Shares 2,000 Value ($000) $36 Avg Close $24.57 Range $16.81 - $30.61
Q3 2018
Shares 1,500 Value ($000) $44 Avg Close $32.95 Range $25.64 - $40.75
Q2 2018
Shares 1,500 Value ($000) $51 Avg Close $35.13 Range $28.34 - $42.30
Q1 2018
Shares 2,000 Value ($000) $64 Avg Close $24.99 Range $18.66 - $33.67
Q4 2017
Shares 2,500 Value ($000) $49 Avg Close $18.21 Range $14.21 - $21.32
Q3 2017
Shares 2,500 Value ($000) $42 Avg Close $14.60 Range $10.88 - $20.42
Q2 2017
Shares 2,000 Value ($000) $37 Avg Close $18.67 Range $15.80 - $22.31
Q1 2017
Shares 2,000 Value ($000) $43 Avg Close $19.07 Range $15.07 - $24.54