Mark Greffen

Business address
7303 30 St. S.E., Calgary, Alberta, Canada, T2C 1N6
Top holdings (ownership)
DRTTF
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Mark Greffen has filed 10 SEC EDGAR filings since 08 Oct 2019

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 4 17 May 2023 15 May 2023 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 03 Mar 2023 01 Mar 2023 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 02 Dec 2022 30 Nov 2022 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 21 Jun 2022 17 Jun 2022 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 03 Mar 2022 01 Mar 2022 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 30 Sep 2021 28 Sep 2021 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jun 2021 17 Jun 2021 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 03 Mar 2021 01 Mar 2021 001-39061
4 Open Document Open Filing FORM 4 SUBMISSION 18 Jun 2020 17 Jun 2020 001-39061
3 Open Document Open Filing FORM 3 SUBMISSION 08 Oct 2019 08 Oct 2019 001-39061