DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

BARCLAYS PLC's Holding History (CIK: 0000312069)

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

Q4 2014
Shares 459 Value ($000) $6 Avg Close — Range —
Q3 2014
Shares 637 Value ($000) $11 Avg Close — Range —
Q2 2014
Shares 438 Value ($000) $12 Avg Close — Range —
Q1 2014
Shares 3,644 Value ($000) $102 Avg Close — Range —
Q4 2013
Shares 3,824 Value ($000) $126 Avg Close — Range —
Q3 2013
Shares 3,610 Value ($000) $116 Avg Close — Range —
Q2 2013
Shares 3,544 Value ($000) $131 Avg Close — Range —