DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

PERRITT CAPITAL MANAGEMENT INC's Holding History (CIK: 0001279342)

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

Q4 2015
Shares 94,217 Value ($000) $326 Avg Close — Range —
Q3 2015
Shares 99,180 Value ($000) $378 Avg Close — Range —
Q2 2015
Shares 99,595 Value ($000) $468 Avg Close — Range —
Q1 2015
Shares 174,595 Value ($000) $746 Avg Close — Range —