Latest filings (excl ownership)
15-12B
Securities registration termination
23 Feb 15
EFFECT
Notice of effectiveness
19 Feb 15
POS AM
Prospectus update (post-effective amendment)
12 Feb 15
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 15
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 15
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 15
25-NSE
Exchange delisting
11 Feb 15
8-K
Dawson Geophysical Announces Completion of
11 Feb 15
425
Business combination disclosure
9 Feb 15
425
Business combination disclosure
9 Feb 15
8-K
Dawson Geophysical and TGC Industries Shareholders Approve Strategic Business Combination
9 Feb 15
10-Q
2015 Q1
Quarterly report
6 Feb 15
425
Business combination disclosure
2 Feb 15
8-K
Dawson Geophysical to File a Quarterly Report on FormĀ 10-Q for First Quarter 2015 Results
2 Feb 15
425
Business combination disclosure
21 Jan 15
425
Business combination disclosure
13 Jan 15
425
Business combination disclosure
13 Jan 15
8-K
Other Events
13 Jan 15
425
Business combination disclosure
5 Jan 15
425
Business combination disclosure
5 Jan 15
8-K
Other Events
5 Jan 15
10-K
2014 FY
Annual report
15 Dec 14
425
Business combination disclosure
15 Dec 14
8-K
Dawson Geophysical Announces Postponement of 2015 Annual Meeting
15 Dec 14
425
Business combination disclosure
3 Dec 14
8-K
Statements in this presentation that relate to forecasts, estimates or other expectations regarding future
3 Dec 14
425
Business combination disclosure
2 Dec 14
425
Business combination disclosure
25 Nov 14
8-K
Dawson Geophysical to Present at Cowen and Company 4th Annual Ultimate Energy Conference
25 Nov 14
425
Business combination disclosure
17 Nov 14
425
Business combination disclosure
17 Nov 14
8-K
Other Events
17 Nov 14
425
Business combination disclosure
12 Nov 14
8-K
Results of Operations and Financial Condition
12 Nov 14
8-K
Regulation FD Disclosure
5 Nov 14
425
Business combination disclosure
27 Oct 14
425
Business combination disclosure
9 Oct 14
425
Business combination disclosure
9 Oct 14
425
Business combination disclosure
9 Oct 14
8-K
Regulation FD Disclosure
9 Oct 14
Latest ownership filings
SC 13G/A
Dawson Operating Co
9 Feb 17
SC 13G/A
Dawson Operating Co
11 Feb 16
SC 13G/A
Dawson Operating Co
9 Feb 16
SC 13G
Dawson Operating Co
12 Feb 15
SC 13G/A
Dawson Geophysical Co
5 Feb 15
SC 13G
Dawson Geophysical Co
4 Feb 15
SC 13G/A
Dawson Geophysical Co
30 Jan 15
SC 13G/A
Dawson Geophysical Co
12 Feb 14
SC 13G/A
Dawson Geophysical Co
10 Feb 14
SC 13G/A
Dawson Geophysical Co
28 Jan 14
144
Notice of proposed sale of securities
7 Apr 03