NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q1 2019
Shares 814 Value ($000) $14 Avg Close $17.65 Range $15.90 - $19.02
Q4 2018
Shares 814 Value ($000) $13 Avg Close $18.94 Range $15.26 - $20.99
Q3 2018
Shares 814 Value ($000) $17 Avg Close $21.85 Range $20.28 - $24.24
Q2 2018
Shares 814 Value ($000) $19 Avg Close $23.87 Range $21.47 - $26.42
Q1 2018
Shares 814 Value ($000) $19 Avg Close $26.44 Range $22.81 - $29.04
Q4 2017
Shares 814 Value ($000) $21 Avg Close $26.38 Range $23.89 - $29.04
Q3 2017
Shares 814 Value ($000) $24 Avg Close $24.49 Range $22.26 - $29.24
Q2 2017
Shares 814 Value ($000) $20 Avg Close $26.24 Range $22.26 - $28.69
Q1 2017
Shares 814 Value ($000) $21 Avg Close $27.74 Range $23.30 - $33.05
Q4 2016
Shares 814 Value ($000) $26 Avg Close $27.19 Range $20.43 - $34.13
Q3 2016
Shares 3,714 Value ($000) $91 Avg Close $24.06 Range $21.50 - $26.46
Q2 2016
Shares 3,714 Value ($000) $85 Avg Close $22.14 Range $19.61 - $25.27