14 results
10-K
2022 FY
EX-4.2
DWSN
Dawson Geophysical Company
Annual report
13 Mar 23
4:35pm
10-K
2021 FY
EX-4.2
DWSN
Dawson Geophysical Company
Annual report
18 Mar 22
4:30pm
8-K
EX-4.1
DWSN
Dawson Geophysical Company
25 Oct 21
Entry into a Material Definitive Agreement
6:05am
8-K
EX-4.1
DWSN
Dawson Geophysical Company
8 Apr 21
Entry into a Material Definitive Agreement
5:18pm
8-K
EX-4.1
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11 Feb 15
Dawson Geophysical Announces Completion of
12:00am
S-8
EX-4.1
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19 Apr 07
Registration of securities for employees
12:00am
SB-2/A
EX-4.14
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20 Sep 05
Registration of securities for small business issuer (amended)
12:00am
SB-2/A
EX-4.16
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20 Sep 05
Registration of securities for small business issuer (amended)
12:00am
SB-2/A
EX-4.15
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20 Sep 05
Registration of securities for small business issuer (amended)
12:00am
SB-2/A
EX-4.1
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20 Sep 05
Registration of securities for small business issuer (amended)
12:00am
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