67 filings
15-12B
DWSN
Dawson Geophysical Co
23 Feb 15
Securities registration termination
12:00am
POS AM
DWSN
Dawson Geophysical Co
12 Feb 15
Prospectus update (post-effective amendment)
12:00am
S-8 POS
DWSN
Dawson Geophysical Co
12 Feb 15
Registration of securities for employees (post-effective amendment)
12:00am
S-8 POS
DWSN
Dawson Geophysical Co
12 Feb 15
Registration of securities for employees (post-effective amendment)
12:00am
S-8 POS
DWSN
Dawson Geophysical Co
12 Feb 15
Registration of securities for employees (post-effective amendment)
12:00am
25-NSE
1fit2bgs56
11 Feb 15
Exchange delisting
12:00am
425
8r6s4bvw 7moj2zqxj
9 Feb 15
Business combination disclosure
12:00am
425
zx7rt7vg2isjdy 6xp
9 Feb 15
Business combination disclosure
12:00am
425
foq7haui6pau
2 Feb 15
Business combination disclosure
12:00am
425
prlqwzgoe5o
21 Jan 15
Business combination disclosure
12:00am
425
st2uq4fu60rtpnn0y
13 Jan 15
Business combination disclosure
12:00am
425
wmh0xw0
13 Jan 15
Business combination disclosure
12:00am
425
pjnjjsza
5 Jan 15
Business combination disclosure
12:00am
425
adxa5ib3wf0s9
5 Jan 15
Business combination disclosure
12:00am
425
pnmcpbp
15 Dec 14
Business combination disclosure
12:00am
425
nqpsnmm52ie32em
3 Dec 14
Business combination disclosure
12:00am
425
m68xz0c 22wdq07
2 Dec 14
Business combination disclosure
12:00am
425
2m4oi 1v8
25 Nov 14
Business combination disclosure
12:00am
425
wyuj5z1go 3oot5j
17 Nov 14
Business combination disclosure
12:00am
425
ozjnfyy2r9ovw
17 Nov 14
Business combination disclosure
12:00am