DAWSON GEOPHYSICAL CO reports

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

DAWSON GEOPHYSICAL CO has filed 1,145 SEC EDGAR filings since 13 Nov 1995

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SEC filing history

Showing 501-525 of 765 matching filings.

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Current page

21

4

4

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3

3

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 POS File 333-199922

POST-EFFECTIVE AMENDMENT TO A S-8 REGISTRATION STATEMENT

Filing date: 12 Feb 2015
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: 12 Feb 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 -

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 -

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 -

Filing date: 12 Feb 2015
Reporting date: 11 Feb 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: 11 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-37717

ROBECO INVESTMENT MANAGEMENT INC.

Filing date: 11 Feb 2015
Reporting date: Not listed
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: 09 Feb 2015
Reporting date: 09 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

425

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 09 Feb 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-201923

SECURITIES TO BE OFFERED TO EMPLOYEES PURSUANT TO EMPLOYEE BENEFIT PLANS

Filing date: 06 Feb 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

SCHEDULE 13G HOLDINGS REPORT AMENDMENT

Filing date: 06 Feb 2015
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: 02 Feb 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

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