3
File 001-10447
OWNERSHIP DOCUMENT
- Filing date
- 05 Oct 2021
- Reporting date
- 01 Oct 2021
- SEC evidence
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Hans Helmerich reports
- Company location
- Denver, CO
Hans Helmerich has filed 177 SEC EDGAR filings since 23 Sep 2003
SEC filing history
Showing 26-50 of 124 matching filings.
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25
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2
4
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 02 Jun 2021
- Reporting date
- 01 Jun 2021
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- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 12 Mar 2021
- Reporting date
- 11 Mar 2021
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 05 Mar 2021
- Reporting date
- 03 Mar 2021
- SEC evidence
- Open document Open filing
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5
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 16 Feb 2021
- Reporting date
- 31 Dec 2020
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 18 Dec 2020
- Reporting date
- 18 Dec 2020
- SEC evidence
- Open document Open filing
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4
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 02 Jun 2020
- Reporting date
- 01 Jun 2020
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 17 Mar 2020
- Reporting date
- 16 Mar 2020
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 17 Dec 2019
- Reporting date
- 16 Dec 2019
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 26 Nov 2019
- Reporting date
- 25 Nov 2019
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4/A
File 001-04221
FORM 4/A -
- Filing date
- 25 Oct 2019
- Reporting date
- 14 Dec 2018
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4
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 03 Jun 2019
- Reporting date
- 01 Jun 2019
- SEC evidence
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4
File 001-04221
FORM 4 -
- Filing date
- 17 Dec 2018
- Reporting date
- 14 Dec 2018
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 -
- Filing date
- 28 Nov 2018
- Reporting date
- 26 Nov 2018
- SEC evidence
- Open document Open filing
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4/A
File 001-04221
FORM 4/A SUBMISSION
- Filing date
- 23 Oct 2018
- Reporting date
- 26 Sep 2018
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4/A
File 001-04221
FORM 4/A SUBMISSION
- Filing date
- 10 Oct 2018
- Reporting date
- 26 Sep 2018
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4/A
File 001-04221
FORM 4/A SUBMISSION
- Filing date
- 02 Oct 2018
- Reporting date
- 26 Sep 2018
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4
File 001-04221
FORM 4 SUBMISSION
- Filing date
- 27 Sep 2018
- Reporting date
- 26 Sep 2018
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- Open document Open filing
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4
File 001-04221
FORM 4 SUBMISSION
- Filing date
- 13 Aug 2018
- Reporting date
- 09 Aug 2018
- SEC evidence
- Open document Open filing
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4
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 09 Aug 2018
- Reporting date
- 09 Aug 2018
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 SUBMISSION
- Filing date
- 23 Jul 2018
- Reporting date
- 13 Jul 2018
- SEC evidence
- Open document Open filing
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4
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 04 Jun 2018
- Reporting date
- 01 Jun 2018
- SEC evidence
- Open document Open filing
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5
File 001-31446
PRIMARY DOCUMENT
- Filing date
- 16 Jan 2018
- Reporting date
- 31 Dec 2017
- SEC evidence
- Open document Open filing
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4
File 001-04221
FORM 4 SUBMISSION
- Filing date
- 27 Dec 2017
- Reporting date
- 20 Dec 2017
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- Open document Open filing
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4
File 001-04221
FORM 4 SUBMISSION
- Filing date
- 18 Dec 2017
- Reporting date
- 14 Dec 2017
- SEC evidence
- Open document Open filing
- Next action
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