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Dawson Geophysical

Name Holding Trade Value Shares
Change
Change in
Stake
Dimensional Fund Advisors
1
Dimensional Fund Advisors
Texas
$4.65M +$195K +78,575 +4%
Renaissance Technologies
2
Renaissance Technologies
New York
$4.31M -$61.3K -24,691 -1%
GWI
3
Grace & White Inc
New York
$3.65M +$274K +110,189 +8%
SIC
4
Salem Investment Counselors
North Carolina
$2.67M +$2.66M +1,069,000 New
BlackRock
5
BlackRock
New York
$2.48M -$2.01M -810,756 -45%
VDBMI
6
Van Den Berg Management I
Texas
$2.08M
Vanguard Group
7
Vanguard Group
Pennsylvania
$2.08M -$270K -108,581 -12%
Ameriprise
8
Ameriprise
Minnesota
$1.95M -$790K -317,930 -29%
RC
9
RBF Capital
California
$1.13M +$1.02M +409,303 +969%
WCM
10
Wedge Capital Management
North Carolina
$1.12M +$288K +115,805 +35%
MA
11
Minerva Advisors
Pennsylvania
$963K
FWSM
12
First Wilshire Securities Management
California
$836K -$506K -203,633 -38%
AA
13
Ancora Advisors
Ohio
$812K -$1.73K -696 -0.2%
Northern Trust
14
Northern Trust
Illinois
$652K -$26.2K -10,562 -4%
US Bancorp
15
US Bancorp
Minnesota
$475K +$126K +50,700 +36%
PAIM
16
Punch & Associates Investment Management
Minnesota
$443K -$454K -182,843 -51%
Acadian Asset Management
17
Acadian Asset Management
Massachusetts
$443K +$97.5K +39,254 +28%
Assenagon Asset Management
18
Assenagon Asset Management
Luxembourg
$409K +$406K +163,578 New
BCM
19
Bridgeway Capital Management
Texas
$364K -$506K -203,800 -58%
Geode Capital Management
20
Geode Capital Management
Massachusetts
$357K -$151K -60,713 -30%
Boston Partners
21
Boston Partners
Massachusetts
$341K
MC
22
Moors & Cabot
Massachusetts
$237K +$52.8K +21,262 +30%
RR
23
Robotti Robert
$235K
SKK
24
Shepherd Kaplan Krochuk
Massachusetts
$230K +$164K +66,167 +256%
PP
25
Paloma Partners
Connecticut
$209K +$208K +83,788 New