David B. Blundin

Business address
C/O Microstrategy Inc, 1861 International Dr, Mclean, VA, 22102
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David B. Blundin has filed 115 SEC EDGAR filings since 11/21/2002

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13D/A Open Document Open Filing Aug 13, 2025
4 Open Document Open Filing 4 Aug 12, 2025 Aug 10, 2025 001-38549
4 Open Document Open Filing 4 May 29, 2025 May 29, 2025 001-38549
4 Open Document Open Filing 4 Mar 27, 2025 Mar 25, 2025 001-38549
4 Open Document Open Filing 4 Mar 26, 2025 Mar 24, 2025 001-38549
SCHEDULE 13D/A Open Document Open Filing Mar 25, 2025
144 Open Document Open Filing Mar 25, 2025
4 Open Document Open Filing 4 Mar 24, 2025 Mar 20, 2025 001-38549
4 Open Document Open Filing 4 Mar 20, 2025 Mar 19, 2025 001-38549
144 Open Document Open Filing Mar 19, 2025
4 Open Document Open Filing 4 Mar 4, 2025 Feb 28, 2025 001-38549
4 Open Document Open Filing 4 Feb 28, 2025 Feb 26, 2025 001-38549
144 Open Document Open Filing Feb 26, 2025
SC 13D/A Open Document Open Filing SC 13D/A Sep 5, 2024
4 Open Document Open Filing 4 Aug 8, 2024 Aug 6, 2024 001-38549
144 Open Document Open Filing Aug 6, 2024
4 Open Document Open Filing 4 Aug 5, 2024 Aug 1, 2024 001-38549
4 Open Document Open Filing 4 Jul 31, 2024 Jul 29, 2024 001-38549
4 Open Document Open Filing 4 Jun 14, 2024 Jun 12, 2024 001-38549
4 Open Document Open Filing 4 Jun 11, 2024 Jun 7, 2024 001-38549
4 Open Document Open Filing 4 May 8, 2024 May 6, 2024 001-38549
SC 13D/A Open Document Open Filing SC 13D/A May 7, 2024
144 Open Document Open Filing May 7, 2024
4 Open Document Open Filing 4 May 6, 2024 May 2, 2024 001-38549
144 Open Document Open Filing May 2, 2024
4 Open Document Open Filing 4 May 2, 2024 Apr 30, 2024 001-38549
4 Open Document Open Filing 4 Apr 19, 2024 Apr 17, 2024 001-38549
4 Open Document Open Filing 4 Apr 15, 2024 Apr 12, 2024 001-38549
4 Open Document Open Filing 4 Apr 8, 2024 Apr 4, 2024 001-38549
4 Open Document Open Filing 4 Mar 19, 2024 Mar 15, 2024 001-38549
SC 13D/A Open Document Open Filing SC 13D/A Mar 15, 2024
4 Open Document Open Filing 4 Mar 15, 2024 Mar 13, 2024 001-38549
4 Open Document Open Filing 4 Mar 13, 2024 Mar 7, 2024 001-38549
4 Open Document Open Filing 4 Feb 28, 2024 Feb 26, 2024 001-38549
144 Open Document Open Filing Feb 27, 2024
4 Open Document Open Filing 4 Feb 26, 2024 Feb 22, 2024 001-38549
144 Open Document Open Filing Feb 22, 2024
4/A Open Document Open Filing 4/A Feb 20, 2024 Feb 9, 2024 001-38549
SC 13D/A Open Document Open Filing SC 13D/A Feb 20, 2024
4 Open Document Open Filing 4 Feb 13, 2024 Feb 9, 2024 001-38549
144 Open Document Open Filing Feb 9, 2024
SC 13D/A Open Document Open Filing SC 13D/A Apr 25, 2023
SC 13D/A Open Document Open Filing SC 13D/A Mar 3, 2022
4 Open Document Open Filing FORM 4 SUBMISSION Feb 24, 2022 Feb 23, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Feb 14, 2022 Feb 10, 2022 001-38549
SC 13D Open Document Open Filing SC 13D Feb 9, 2022
4 Open Document Open Filing FORM 4 SUBMISSION Jan 31, 2022 Jan 28, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jan 26, 2022 Jan 25, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jan 25, 2022 Jan 21, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jan 10, 2022 Jan 7, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jan 7, 2022 Jan 6, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jan 5, 2022 Jan 4, 2022 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Dec 30, 2021 Dec 29, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Dec 21, 2021 Dec 20, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Dec 15, 2021 Dec 14, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Dec 14, 2021 Dec 13, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Dec 7, 2021 Dec 6, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 26, 2021 Nov 23, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 22, 2021 Nov 19, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 17, 2021 Nov 16, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 16, 2021 Nov 15, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 12, 2021 Nov 10, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 10, 2021 Nov 9, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 9, 2021 Nov 8, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 8, 2021 Nov 5, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 5, 2021 Nov 4, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Sep 2, 2021 Aug 31, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 9, 2021 May 21, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Mar 3, 2021 Mar 1, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Mar 1, 2021 Feb 25, 2021 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Feb 25, 2021 Feb 23, 2021 001-38549
SC 13G/A Open Document Open Filing SC 13G/A Feb 9, 2021
4/A Open Document Open Filing FORM 4/A SUBMISSION Dec 28, 2020 Jul 30, 2020 001-38549
4/A Open Document Open Filing FORM 4/A SUBMISSION Dec 28, 2020 Jun 3, 2020 001-38549
4/A Open Document Open Filing FORM 4/A SUBMISSION Dec 28, 2020 May 19, 2020 001-38549
4/A Open Document Open Filing FORM 4/A SUBMISSION Dec 28, 2020 May 13, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Aug 3, 2020 Jul 30, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jul 13, 2020 Jul 9, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jul 9, 2020 Jul 7, 2020 001-38549
4 Open Document Open Filing PRIMARY DOCUMENT Jul 7, 2020 Jul 1, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 30, 2020 Jun 26, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 26, 2020 Jun 24, 2020 001-38549
SC 13G/A Open Document Open Filing SC 13G/A Jun 25, 2020
4 Open Document Open Filing FORM 4 SUBMISSION Jun 24, 2020 Jun 22, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 22, 2020 Jun 18, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 18, 2020 Jun 16, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 16, 2020 Jun 12, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 15, 2020 Jun 10, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 10, 2020 Jun 8, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 8, 2020 Jun 4, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 4, 2020 Jun 2, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 3, 2020 Jun 1, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Jun 1, 2020 May 28, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION May 21, 2020 May 19, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION May 19, 2020 May 15, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION May 14, 2020 May 13, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION May 11, 2020 May 7, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Mar 12, 2020 Mar 10, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Mar 9, 2020 Mar 5, 2020 001-38549
SC 13G/A Open Document Open Filing SC 13G/A Mar 2, 2020
4 Open Document Open Filing FORM 4 SUBMISSION Feb 21, 2020 Feb 19, 2020 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Feb 18, 2020 Feb 13, 2020 001-38549
3/A Open Document Open Filing FORM 3/A SUBMISSION Feb 11, 2020 Jun 27, 2018 001-38549
SC 13G/A Open Document Open Filing SC 13G/A Feb 10, 2020
5 Open Document Open Filing FORM 5 SUBMISSION Feb 4, 2020 Dec 31, 2019 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Dec 9, 2019 Dec 5, 2019 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 20, 2019 Nov 19, 2019 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Nov 1, 2019 Oct 30, 2019 001-38549
4 Open Document Open Filing FORM 4 SUBMISSION Mar 4, 2019 Feb 28, 2019 001-38549
SC 13G Open Document Open Filing SC 13G Feb 14, 2019
4 Open Document Open Filing FORM 4 SUBMISSION Jul 3, 2018 Jul 2, 2018 001-38549
3 Open Document Open Filing FORM 3 SUBMISSION Jun 27, 2018 Jun 27, 2018 001-38549