DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

ZACKS INVESTMENT MANAGEMENT's Holding History (CIK: 0001086483)

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

Q3 2013
Shares 7,244 Value ($000) $235 Avg Close — Range —
Q2 2013
Shares 9,540 Value ($000) $352 Avg Close — Range —