Mark W. Kroll

Entity
Individual
Business address
Po Box 23, 55323 Crystal Bay, MN
Insider ownership signature
/s/ Thomas V. Powers, attorney-in-fact for Dr. Kroll
All SEC filings
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Mark W. Kroll has filed 82 SEC EDGAR filings since 2/10/2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT Nov 12, 2025 Nov 10, 2025 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Jul 25, 2025 Jul 24, 2025 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Jul 26, 2024 Jul 25, 2024 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Aug 8, 2023 Aug 4, 2023 001-14041
4 Open Document Open Filing May 15, 2023 May 12, 2023 001-16391
4 Open Document Open Filing Mar 8, 2023 Mar 7, 2023 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Aug 16, 2022 Aug 15, 2022 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Aug 8, 2022 Aug 5, 2022 001-14041
4 Open Document Open Filing Jun 9, 2022 Jun 8, 2022 001-16391
4 Open Document Open Filing May 23, 2022 May 20, 2022 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Aug 9, 2021 Aug 6, 2021 001-14041
4 Open Document Open Filing Jun 1, 2021 May 27, 2021 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT May 28, 2021 May 26, 2021 001-14041
5 Open Document Open Filing PRIMARY DOCUMENT May 14, 2021 Apr 3, 2021 001-14041
4 Open Document Open Filing May 14, 2021 May 12, 2021 001-16391
4 Open Document Open Filing Jan 21, 2021 Jan 19, 2021 001-16391
4 Open Document Open Filing Nov 17, 2020 Nov 16, 2020 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Jul 22, 2020 Jul 21, 2020 001-14041
4 Open Document Open Filing Jun 2, 2020 May 29, 2020 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Apr 13, 2020 Apr 9, 2020 001-14041
4 Open Document Open Filing FORM 4 Nov 14, 2019 Nov 13, 2019 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Jul 26, 2019 Jul 24, 2019 001-14041
4 Open Document Open Filing FORM 4 Jun 3, 2019 May 31, 2019 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT May 24, 2019 May 21, 2019 001-14041
4 Open Document Open Filing FORM 4 May 22, 2019 May 20, 2019 001-16391
5 Open Document Open Filing PRIMARY DOCUMENT May 13, 2019 Mar 30, 2019 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Nov 9, 2018 Nov 7, 2018 001-14041
4 Open Document Open Filing FORM 4 Aug 29, 2018 Aug 28, 2018 001-16391
4 Open Document Open Filing FORM 4 Aug 20, 2018 Aug 20, 2018 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Jul 30, 2018 Jul 26, 2018 001-14041
4 Open Document Open Filing FORM 4 Jun 29, 2018 Jun 7, 2013 001-16391
4 Open Document Open Filing FORM 4 May 24, 2018 May 24, 2018 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Jan 3, 2018 Jan 2, 2018 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Jul 31, 2017 Jul 27, 2017 001-14041
4 Open Document Open Filing FORM 4 May 26, 2017 May 25, 2017 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT May 17, 2017 May 15, 2017 001-14041
4 Open Document Open Filing PRIMARY DOCUMENT Jul 25, 2016 Jul 21, 2016 001-14041
4 Open Document Open Filing FORM 4 May 27, 2016 May 26, 2016 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Jul 23, 2015 Jul 21, 2015 001-14041
4 Open Document Open Filing FORM 4 May 20, 2015 May 18, 2015 001-16391
4 Open Document Open Filing FORM 4 May 11, 2015 May 8, 2015 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Mar 3, 2015 Feb 27, 2015 001-14041
4 Open Document Open Filing FORM 4 SUBMISSION Nov 3, 2014 Nov 3, 2014 001-16391
4 Open Document Open Filing PRIMARY DOCUMENT Jul 25, 2014 Jul 23, 2014 001-14041
4 Open Document Open Filing FORM 4 SUBMISSION May 19, 2014 May 15, 2014 001-16391
4 Open Document Open Filing FORM 4 SUBMISSION Mar 4, 2014 Feb 28, 2014 001-16391