Darrell E. Hollek

Business address
1201 Lake Robbins Drive, The Woodlands, TX, 77380
Top holdings (ownership)
OIS
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Darrell E. Hollek has filed 20 SEC EDGAR filings since 29 Apr 2015

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 14 May 2025 13 May 2025 001-16337
4 Open Document Open Filing FORM 4 08 May 2024 07 May 2024 001-16337
4 Open Document Open Filing FORM 4 10 May 2023 09 May 2023 001-16337
4 Open Document Open Filing FORM 4 11 May 2022 10 May 2022 001-16337
4 Open Document Open Filing FORM 4 12 May 2021 11 May 2021 001-16337
4 Open Document Open Filing FORM 4 12 May 2020 12 May 2020 001-16337
4 Open Document Open Filing FORM 4 08 May 2019 07 May 2019 001-16337
3 Open Document Open Filing FORM 3 13 Jun 2018 07 Jun 2018 001-16337
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jun 2017 05 Jun 2017 001-08968
4 Open Document Open Filing PRIMARY DOCUMENT 01 May 2017 27 Apr 2017 001-08968
4 Open Document Open Filing PRIMARY DOCUMENT 07 Nov 2016 06 Nov 2016 001-08968
4 Open Document Open Filing PRIMARY DOCUMENT 29 Apr 2016 27 Apr 2016 001-08968
4 Open Document Open Filing PRIMARY DOCUMENT 26 Apr 2016 09 Jul 2015 001-34046
3/A Open Document Open Filing PRIMARY DOCUMENT 26 Apr 2016 13 May 2015 001-34046
3/A Open Document Open Filing PRIMARY DOCUMENT 26 Apr 2016 13 May 2015 001-35753
4 Open Document Open Filing PRIMARY DOCUMENT 09 Nov 2015 05 Nov 2015 001-08968
3 Open Document Open Filing PRIMARY DOCUMENT 14 May 2015 13 May 2015 001-35753
3 Open Document Open Filing PRIMARY DOCUMENT 14 May 2015 13 May 2015 001-34046
4 Open Document Open Filing PRIMARY DOCUMENT 29 Apr 2015 27 Apr 2015 001-08968
3 Open Document Open Filing PRIMARY DOCUMENT 29 Apr 2015 27 Apr 2015 001-08968