DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

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

Q4 2014
Shares 38,960 Value ($000) $476 Avg Close — Range —
Q3 2014
Shares 31,513 Value ($000) $573 Avg Close — Range —
Q2 2014
Shares 17,188 Value ($000) $492 Avg Close — Range —
Q1 2014
Shares 19,168 Value ($000) $537 Avg Close — Range —
Q4 2013
Shares 15,075 Value ($000) $510 Avg Close — Range —
Q3 2013
Shares 15,270 Value ($000) $496 Avg Close — Range —
Q2 2013
Shares 15,983 Value ($000) $589 Avg Close — Range —