DAWSON GEOPHYSICAL CO NEW

Ticker: DWSN CUSIP: 239360100 Class: COM

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q2 2016
Shares 16,100 Value ($000) $131 Avg Close $4.96 Range $3.25 - $6.85
Q1 2016
Shares 6,600 Value ($000) $30 Avg Close $2.91 Range $2.36 - $3.94