Mark W. Helderman

Entity
Individual
Business address
100 W. 5 Th St., 74102 Tulsa, OK
Insider ownership signature
/s/ Patrick W. Cipolla, Attorney-in-Fact for Mark W. Helderman
All SEC filings
View on sec.gov
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Mark W. Helderman has filed 12 SEC EDGAR filings since 2/20/2019

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 May 28, 2025 May 23, 2025 001-13643
4 Open Document Open Filing FORM 4 May 24, 2024 May 22, 2024 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT May 26, 2023 May 24, 2023 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT May 27, 2022 May 25, 2022 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT Mar 4, 2022 Mar 3, 2022 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT May 28, 2021 May 26, 2021 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT May 21, 2020 May 20, 2020 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT Mar 19, 2020 Mar 18, 2020 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT Dec 17, 2019 Dec 17, 2019 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT May 24, 2019 May 22, 2019 001-13643
4 Open Document Open Filing PRIMARY DOCUMENT Feb 20, 2019 Feb 19, 2019 001-13643
3 Open Document Open Filing PRIMARY DOCUMENT Feb 20, 2019 Feb 19, 2019 001-13643