DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

WEDGE CAPITAL MANAGEMENT L L P/NC's Holding History (CIK: 0001015308)

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

Q4 2014
Shares 127,300 Value ($000) $1,557 Avg Close — Range —
Q3 2014
Shares 74,400 Value ($000) $1,353 Avg Close — Range —
Q2 2014
Shares 59,633 Value ($000) $1,708 Avg Close — Range —
Q1 2014
Shares 59,900 Value ($000) $1,678 Avg Close — Range —
Q4 2013
Shares 55,125 Value ($000) $1,864 Avg Close — Range —
Q3 2013
Shares 44,050 Value ($000) $1,430 Avg Close — Range —
Q2 2013
Shares 22,900 Value ($000) $844 Avg Close — Range —