David C. Wajsgras

Business address
870 Winter Street, Waltham, MA, 02451
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David C. Wajsgras has filed 144 SEC EDGAR filings since 11/14/2003

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT Dec 1, 2025 Nov 28, 2025 001-12744
4 Open Document Open Filing 4 Oct 3, 2025 Oct 1, 2025 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Sep 2, 2025 Aug 29, 2025 001-12744
4 Open Document Open Filing 4 Jul 3, 2025 Jul 1, 2025 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Jun 3, 2025 May 30, 2025 001-12744
4 Open Document Open Filing PRIMARY DOCUMENT May 16, 2025 May 15, 2025 001-12744
4 Open Document Open Filing 4 Apr 17, 2025 Apr 15, 2025 001-07782
4 Open Document Open Filing 4 Apr 3, 2025 Apr 1, 2025 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Mar 3, 2025 Feb 28, 2025 001-12744
4 Open Document Open Filing 4 Jan 6, 2025 Jan 2, 2025 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Dec 3, 2024 Nov 29, 2024 001-12744
4 Open Document Open Filing 4 Oct 3, 2024 Oct 1, 2024 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Sep 3, 2024 Aug 30, 2024 001-12744
4 Open Document Open Filing 4 Jul 2, 2024 Jul 1, 2024 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Jun 4, 2024 May 31, 2024 001-12744
4 Open Document Open Filing PRIMARY DOCUMENT May 17, 2024 May 16, 2024 001-12744
4 Open Document Open Filing 4 Apr 18, 2024 Apr 16, 2024 001-07782
4 Open Document Open Filing 4 Apr 2, 2024 Apr 1, 2024 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Mar 4, 2024 Feb 29, 2024 001-12744
4 Open Document Open Filing 4 Jan 3, 2024 Jan 1, 2024 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Dec 4, 2023 Nov 30, 2023 001-12744
4 Open Document Open Filing 4 Oct 3, 2023 Oct 1, 2023 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Sep 5, 2023 Aug 31, 2023 001-12744
4 Open Document Open Filing 4 Jul 5, 2023 Jul 1, 2023 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Jun 2, 2023 May 31, 2023 001-12744
4 Open Document Open Filing PRIMARY DOCUMENT May 12, 2023 May 11, 2023 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Apr 20, 2023 Apr 18, 2023 001-07782
4 Open Document Open Filing FORM 4 SUBMISSION Apr 4, 2023 Apr 3, 2023 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Mar 1, 2023 Feb 28, 2023 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Jan 5, 2023 Jan 3, 2023 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Dec 2, 2022 Nov 30, 2022 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Oct 4, 2022 Oct 3, 2022 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Sep 1, 2022 Aug 31, 2022 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Jul 5, 2022 Jul 1, 2022 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Jun 2, 2022 May 31, 2022 001-12744
4 Open Document Open Filing PRIMARY DOCUMENT May 16, 2022 May 12, 2022 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Apr 18, 2022 Apr 14, 2022 001-07782
4 Open Document Open Filing FORM 4 SUBMISSION Apr 4, 2022 Apr 1, 2022 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Mar 1, 2022 Feb 28, 2022 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Jan 4, 2022 Jan 1, 2022 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Dec 2, 2021 Nov 30, 2021 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Oct 5, 2021 Oct 1, 2021 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Sep 2, 2021 Aug 31, 2021 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Jul 6, 2021 Jul 1, 2021 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Jun 1, 2021 May 28, 2021 001-12744
4 Open Document Open Filing PRIMARY DOCUMENT May 17, 2021 May 13, 2021 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION May 3, 2021 Apr 20, 2021 001-07782
4 Open Document Open Filing FORM 4 SUBMISSION Apr 2, 2021 Apr 1, 2021 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Mar 2, 2021 Feb 26, 2021 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Jan 5, 2021 Jan 1, 2021 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Dec 2, 2020 Nov 30, 2020 001-12744
4 Open Document Open Filing FORM 4 SUBMISSION Oct 5, 2020 Oct 1, 2020 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Sep 1, 2020 Aug 31, 2020 001-12744
4/A Open Document Open Filing FORM 4/A SUBMISSION Aug 5, 2020 Jul 21, 2020 001-07782
4 Open Document Open Filing FORM 4 SUBMISSION Jul 23, 2020 Jul 21, 2020 001-07782
4 Open Document Open Filing FORM 4 SUBMISSION Jul 6, 2020 Jul 1, 2020 001-07782
3 Open Document Open Filing FORM 3 SUBMISSION Jul 1, 2020 Jun 24, 2020 001-07782
4 Open Document Open Filing PRIMARY DOCUMENT Jun 1, 2020 May 29, 2020 001-12744
4 Open Document Open Filing PRIMARY DOCUMENT May 15, 2020 May 14, 2020 001-12744
3 Open Document Open Filing PRIMARY DOCUMENT May 15, 2020 May 14, 2020 001-12744
4 Open Document Open Filing FORM 4 Apr 8, 2020 Apr 3, 2020 001-13699
4 Open Document Open Filing FORM 4 Mar 27, 2020 Mar 25, 2020 001-13699
4 Open Document Open Filing FORM 4 Mar 25, 2020 Mar 23, 2020 001-13699
4 Open Document Open Filing FORM 4 Feb 18, 2020 Feb 13, 2020 001-13699
4 Open Document Open Filing FORM 4 Jul 29, 2019 Jul 25, 2019 001-13699
4 Open Document Open Filing FORM 4 Apr 2, 2019 Mar 29, 2019 001-13699
4 Open Document Open Filing FORM 4 Mar 26, 2019 Mar 25, 2019 001-13699
4 Open Document Open Filing FORM 4 Mar 21, 2019 Mar 20, 2019 001-13699
4 Open Document Open Filing FORM 4 Mar 20, 2019 Mar 18, 2019 001-13699
4 Open Document Open Filing FORM 4 Feb 15, 2019 Feb 13, 2019 001-13699
4 Open Document Open Filing FORM 4 May 31, 2018 May 29, 2018 001-13699
4 Open Document Open Filing FORM 4 Mar 27, 2018 Mar 23, 2018 001-13699
4 Open Document Open Filing FORM 4 Mar 22, 2018 Mar 21, 2018 001-13699
4 Open Document Open Filing FORM 4 Mar 21, 2018 Mar 19, 2018 001-13699
4 Open Document Open Filing FORM 4 Feb 15, 2018 Feb 13, 2018 001-13699
4 Open Document Open Filing FORM 4 May 31, 2017 May 30, 2017 001-13699
4 Open Document Open Filing FORM 4 Mar 31, 2017 Mar 29, 2017 001-13699
4 Open Document Open Filing FORM 4 Mar 22, 2017 Mar 20, 2017 001-13699
4 Open Document Open Filing FORM 4 Mar 9, 2017 Mar 8, 2017 001-13699
4 Open Document Open Filing FORM 4 Feb 16, 2017 Feb 14, 2017 001-13699
4 Open Document Open Filing FORM 4 Jun 1, 2016 May 31, 2016 001-13699
4 Open Document Open Filing FORM 4 Mar 24, 2016 Mar 23, 2016 001-13699
4 Open Document Open Filing FORM 4 Feb 18, 2016 Feb 16, 2016 001-13699
4 Open Document Open Filing FORM 4 Jun 3, 2015 Jun 1, 2015 001-13699
4 Open Document Open Filing FORM 4 May 28, 2015 May 26, 2015 001-13699
4 Open Document Open Filing FORM 4 Mar 20, 2015 Mar 18, 2015 001-13699
4 Open Document Open Filing FORM 4 Feb 18, 2015 Feb 13, 2015 001-13699
4 Open Document Open Filing FORM 4 Jun 4, 2014 Jun 2, 2014 001-13699
4 Open Document Open Filing FORM 4 Jun 2, 2014 May 29, 2014 001-13699
4 Open Document Open Filing FORM 4 May 29, 2014 May 27, 2014 001-13699
4 Open Document Open Filing FORM 4 Feb 18, 2014 Feb 13, 2014 001-13699