Dawson Geophysical Co: Ownership

Ownership Information
Shares Outstanding 8.00 Mil
Institutional Ownership (%)61.16
Top 10 Institutions (%)36.00
Mutual Fund Ownership (%).82
5%/Insider Ownership (%)2.96
Float (%)97.04
Ownership Activity
Description# of HoldersShares
Total Positions 1014,892,895
New Positions180
Soldout Positions680
Net Position Change-42-1,413,799
Buyers561,171,931
Sellers98-2,585,730
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
BlackRock Institutional Trust Company, N.A. 629,691 85,682 15.8 1,002,271 8.1 0.0 09-30-09
Dimensional Fund Advisors, LP 419,063 170,098 68.3 4,042,340 5.4 0.0 09-30-09
Royce & Associates, LLC 358,000 0 0.0 -884,260 4.6 0.1 09-30-09
Vanguard Group, Inc. 346,218 7,160 2.1 -641,432 4.4 0.0 09-30-09
Beddow Capital Management Inc. 335,785 -5,350 -1.6 -989,087 4.3 4.0 09-30-09
Integrity Asset Management, LLC 302,065 241,365 397.6 6,458,645 3.9 0.4 09-30-09
State Street Global Advisors (US) 177,857 45,532 34.4 919,824 2.3 0.0 09-30-09
TIAA-CREF 106,504 7,450 7.5 -40,682 1.4 0.0 09-30-09
Batterymarch Financial Management, Inc. 103,179 -28,210 -21.5 -1,096,921 1.3 0.0 09-30-09
Turner Investment Partners, Inc. 102,340 28,280 38.2 591,378 1.3 0.0 09-30-09
OppenheimerFunds, Inc. 101,425 11,013 12.2 78,219 1.3 0.0 09-30-09
Signia Capital Management, LLC 99,827 19,956 25.0 349,114 1.3 0.9 09-30-09
Shell Asset Management Company B.V. 87,302 -10,388 -10.6 -658,076 1.1 0.1 12-31-09
Fidelity Management & Research 86,130 3,530 4.3 -107,371 1.1 0.0 09-30-09
Grace & White, Inc. 83,219 -17,497 -17.4 -835,245 1.1 0.4 12-31-09
*Category Headings:
Shs Held - shares held at report date
Shs Chg - position change within reporting period
%Chg - % change
$Chg - market value of the position change
%Out - % of shares outstanding
%Port - % Portfolio
Rpt Date - report date
Page generated 2/10/2010 7:22 AM Eastern Time