NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

MUFG Americas Holdings Corp's Holding History (CIK: 0001011659)

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

Q4 2017
Shares 106 Value ($000) $3 Avg Close $26.38 Range $23.89 - $29.04
Q3 2017
Shares 171 Value ($000) $5 Avg Close $24.49 Range $22.26 - $29.24
Q2 2017
Shares 171 Value ($000) $4 Avg Close $26.24 Range $22.26 - $28.69
Q1 2017
Shares 133 Value ($000) $3 Avg Close $27.74 Range $23.30 - $33.05
Q4 2016
Shares 133 Value ($000) $4 Avg Close $27.19 Range $20.43 - $34.13
Q3 2016
Shares 272 Value ($000) $7 Avg Close $24.06 Range $21.50 - $26.46
Q2 2016
Shares 200 Value ($000) $5 Avg Close $22.14 Range $19.61 - $25.27
Q1 2016
Shares 200 Value ($000) $4 Avg Close $18.82 Range $15.79 - $22.57
Q4 2015
Shares 340 Value ($000) $8 Avg Close $21.48 Range $18.28 - $24.21
Q3 2012
Shares 18,800 Value ($000) $281 Avg Close — Range —