418 filings
SC 13G/A
Dimensional Fund Advisors LP
9 Feb 17
Dawson Operating Co
12:00am
SC 13G/A
DWSN
Dawson Geophysical Co
11 Feb 16
Dawson Operating Co
12:00am
SC 13G/A
Dimensional Fund Advisors LP
9 Feb 16
Dawson Operating Co
12:00am
15-12B
DWSN
Dawson Geophysical Co
23 Feb 15
Securities registration termination
12:00am
EFFECT
DWSN
Dawson Geophysical Co
19 Feb 15
Notice of effectiveness
12:00am
SC 13G
uj7i1j4
12 Feb 15
Dawson Operating Co
12:00am
S-8 POS
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12 Feb 15
Registration of securities for employees (post-effective amendment)
12:00am
S-8 POS
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12 Feb 15
Registration of securities for employees (post-effective amendment)
12:00am
S-8 POS
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12 Feb 15
Registration of securities for employees (post-effective amendment)
12:00am
POS AM
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12 Feb 15
Prospectus update (post-effective amendment)
12:00am
8-K
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11 Feb 15
Dawson Geophysical Announces Completion of
12:00am
25-NSE
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11 Feb 15
Exchange delisting
12:00am
425
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9 Feb 15
Business combination disclosure
12:00am
8-K
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9 Feb 15
Dawson Geophysical and TGC Industries Shareholders Approve Strategic Business Combination
12:00am
425
dsid1
9 Feb 15
Business combination disclosure
12:00am
SC 13G/A
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5 Feb 15
Dawson Geophysical Co
12:00am
SC 13G
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4 Feb 15
Dawson Geophysical Co
12:00am
8-K
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2 Feb 15
Dawson Geophysical to File a Quarterly Report on FormĀ 10-Q for First Quarter 2015 Results
12:00am
425
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2 Feb 15
Business combination disclosure
12:00am