Brian L. Derksen reports

Company location: Tulsa, OK

Brian L. Derksen has filed 19 SEC EDGAR filings since 05 Jan 2016

SEC filing history

Showing 1-19 of 19 matching filings.

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25

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1

4 File 001-13643

FORM 4

Filing date: 22 May 2026
Reporting date: 20 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

FORM 4

Filing date: 05 Nov 2025
Reporting date: 03 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

FORM 4

Filing date: 28 May 2025
Reporting date: 23 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

FORM 4

Filing date: 24 May 2024
Reporting date: 22 May 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 28 Jun 2023
Reporting date: 28 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 26 May 2023
Reporting date: 24 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 27 May 2022
Reporting date: 25 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 28 May 2021
Reporting date: 26 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 21 May 2020
Reporting date: 20 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 25 Mar 2020
Reporting date: 25 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 24 May 2019
Reporting date: 22 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 06 Aug 2018
Reporting date: 06 Aug 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 24 May 2018
Reporting date: 23 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 20 Nov 2017
Reporting date: 20 Nov 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 26 May 2017
Reporting date: 24 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 31 May 2016
Reporting date: 25 May 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 18 Mar 2016
Reporting date: 17 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-13643

PRIMARY DOCUMENT

Filing date: 19 Jan 2016
Reporting date: 29 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-13643

PRIMARY DOCUMENT

Filing date: 05 Jan 2016
Reporting date: 29 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

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