Insider · CIK 0001481594

Clark William Anthony

Reports to the SEC for 2 companies · MISSOURI CITY, TX

sec.gov

Transactions

Companies

Filings

CIK

0001481594

Forms 4 and 5

Insider transactions

18 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-10-27	DWSNDAWSON GEOPHYSICAL COA Award	CEO & President	AAward	+150K sh	—	—	151,850
2025-09-09	DWSNDAWSON GEOPHYSICAL COA Award	CEO & President	AAward	+550 sh	$1.59	+$874.5	1,850
2025-08-20	DWSNDAWSON GEOPHYSICAL COA Award	CEO & President	AAward	+500 sh	$1.40	+$700	1,300
2025-06-13	DWSNDAWSON GEOPHYSICAL COA Award	CEO & President	AAward	+50 sh	$1.36	+$68	800
2025-06-06	DWSNDAWSON GEOPHYSICAL COA Award	CEO & President	AAward	+600 sh	$1.31	+$786	750
2024-06-28	DWSNDAWSON GEOPHYSICAL COA Award	CEO & President	AAward	+150 sh	—	—	150
2011-02-11	Global Geophysical Services IncA Award	Sr. VP and CSO	AAward	+5,000 sh	—	—	38,275
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+5,000 sh	—	—	5,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+5,000 sh	—	—	5,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+5,000 sh	—	—	5,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+5,000 sh	—	—	5,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+5,000 sh	—	—	5,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+5,000 sh	—	—	5,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+15K sh	—	—	15,000
2010-04-27	Global Geophysical Services IncStock OptionJ Other	Sr. VP and CSO	JOther	+15K sh	—	—	15,000
2010-04-27	Global Geophysical Services IncS Sale	Sr. VP and CSO	SSale	−1,725 sh	$12.00	−$20.7K	33,275
2010-04-27	Global Geophysical Services IncJ Other	Sr. VP and CSO	JOther	+35K sh	—	—	35,000
2010-04-27	Global Geophysical Services IncJ Other	Sr. VP and CSO	JOther	−35K sh	—	—	0

Recent filings

Accepted (ET)
Oct 284
Clark William Anthony0001104659-25-103148
SEC(opens sec.gov)
Sep 94
Clark William Anthony0001104659-25-088660
SEC(opens sec.gov)
Aug 214
Clark William Anthony0001104659-25-081405
SEC(opens sec.gov)
Jun 174
Clark William Anthony0001104659-25-060238
SEC(opens sec.gov)
Jun 94
Clark William Anthony0001104659-25-057841
SEC(opens sec.gov)
Jan 214
Clark William Anthony0001104659-25-004870
SEC(opens sec.gov)
Feb 154
Clark William Anthony0001481594-11-000001
SEC(opens sec.gov)
Apr 294
Clark William Anthony0001104659-10-023486
SEC(opens sec.gov)

Companies

Address

C/O GLOBAL GEOPHYSICAL SERVICES, INC. 13927 SOUTH GESSNER ROAD

MISSOURI CITY, TX, 77489