DAWSON GEOPHYSICAL CO reports

Company location: Midland, TX
Fiscal year end: 31 December

DAWSON GEOPHYSICAL CO has filed 1,148 SEC EDGAR filings since 13 Nov 1995

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SEC filing history

Showing 451-475 of 768 matching filings.

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25

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19

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 07 Mar 2016
Reporting date: 07 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

4/A

Filing date: 01 Mar 2016
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 01 Mar 2016
Reporting date: 01 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 19 Feb 2016
Reporting date: 15 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

ROBECO INVESTMENT MANAGEMENT INC.

Filing date: 11 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-37717

SCHEDULE 13G

Filing date: 09 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

SC 13G/A filing

Filing date: 04 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-37717

SC 13G filing

Filing date: 28 Jan 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

SC 13G/A filing

Filing date: 21 Jan 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

SC 13G/A filing

Filing date: 04 Dec 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

3

PRIMARY DOCUMENT

Filing date: 04 Dec 2015
Reporting date: 27 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

4/A

Filing date: 03 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

4/A

Filing date: 03 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

4/A

Filing date: 03 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

4/A

Filing date: 03 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 03 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 03 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Dec 2015
Reporting date: 01 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-32472

QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D)

Filing date: 06 Nov 2015
Reporting date: 30 Sep 2015
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 05 Nov 2015
Reporting date: 05 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 29 Oct 2015
Reporting date: 29 Oct 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 23 Sep 2015
Reporting date: 23 Sep 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

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