DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

ROBOTTI ROBERT's Holding History (CIK: 0001105838)

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

Q3 2016
Shares 9,312 Value ($000) $71 Avg Close — Range —
Q2 2016
Shares 9,312 Value ($000) $76 Avg Close — Range —
Q1 2016
Shares 9,312 Value ($000) $43 Avg Close — Range —
Q4 2015
Shares 15,378 Value ($000) $53 Avg Close — Range —
Q2 2015
Shares 6,127 Value ($000) $29 Avg Close — Range —
Q1 2015
Shares 6,127 Value ($000) $26 Avg Close — Range —