Dawson Geophysical Co. (DWSN)

Basic Materials: Oil & Gas Equipment & Services

As of September 30, 2011
Closing price on 09/30/2011:
$23.58
Filers who had this stock in their top 10:
2
13F Filers holding this stock:
78
Aggregate shares on 09/30/2011:
6,424,492
Aggregate shares on 06/30/2011:
5,755,719
Percent change:
11.619278%

Dawson Geophysical Co. Stock Chart by YCharts

Schedule 13D and 13G filings submitted since 09/30/2011

Filing Company Date of
Filing		 Total Reported
Shares Owned		 Shares Reported
on 13F
SC 13G/A ROYCE & ASSOCIATES LLC 01/11/2012 413,900 425,800
SC 13G VANGUARD GROUP INC 02/08/2012 399,823 397,162

13F Filers holding this stock

Quarter 1: Quarter 2:
*Shares are split adjusted