Dawson Geophysical Company

Filing date	Form	Description	Filing Group	View
08/28/23	DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Proxy Filings	0001104659-23-096067.rtf View HTML 0001104659-23-096067.xls 0001104659-23-096067.pdf
11/08/23	DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Proxy Filings	0001104659-23-115718.rtf View HTML 0001104659-23-115718.xls 0001104659-23-115718.pdf
04/29/24	DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Proxy Filings	0001558370-24-006113.rtf View HTML 0001558370-24-006113.xls 0001558370-24-006113.pdf
04/26/96	DEFA14A	Additional proxy soliciting materials - definitive	Proxy Filings	0000929966-96-000006.rtf View HTML 0000929966-96-000006.xls 0000929966-96-000006.pdf
01/15/15	DEFA14A	Additional proxy soliciting materials - definitive	Proxy Filings	0001104659-15-002653.rtf View HTML 0001104659-15-002653.xls 0001104659-15-002653.pdf
02/22/22	DEFM14A	Definitive proxy statement relating to merger or acquisition	Mergers & Acquisitions	0001104659-22-025643.rtf View HTML 0001104659-22-025643.xls 0001104659-22-025643.pdf
04/25/06	DEFR14A	DEFR14A	Proxy Filings	0001104659-06-027480.rtf View HTML 0001104659-06-027480.xls 0001104659-06-027480.pdf
09/25/98	DEFS14A	A definitive proxy statement giving notice regarding a special meeting	Proxy Filings	0000929966-98-000014.rtf View HTML 0000929966-98-000014.xls 0000929966-98-000014.pdf
04/09/09	EFFECT	EFFECT	Other	9999999995-09-000910.rtf View HTML 9999999995-09-000910.pdf
04/20/12	EFFECT	EFFECT	Other	9999999995-12-001117.rtf View HTML 9999999995-12-001117.pdf

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Dawson Geophysical Company

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