TIMOTHY A. SPRINGER

Business address
36 Woodman Road, Chestnut Hill, MA, 02467
Top holdings (ownership)
TECX and RNAC
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TIMOTHY A. SPRINGER has filed 114 SEC EDGAR filings since 13 Feb 1998

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 06 Jan 2026 02 Jan 2026 001-37798
4 Open Document Open Filing 11 Jun 2025 09 Jun 2025 001-38537
4 Open Document Open Filing 11 Apr 2025 09 Apr 2025 001-38537
4 Open Document Open Filing FORM 4 11 Apr 2025 09 Apr 2025 001-37798
4 Open Document Open Filing 09 Apr 2025 07 Apr 2025 001-38537
SCHEDULE 13D/A Open Document Open Filing 07 Apr 2025
4 Open Document Open Filing FORM 4 20 Mar 2025 18 Mar 2025 001-37798
SCHEDULE 13D/A Open Document Open Filing 10 Feb 2025
4 Open Document Open Filing 07 Feb 2025 05 Feb 2025 001-38537
SCHEDULE 13D/A Open Document Open Filing 15 Jan 2025
4 Open Document Open Filing FORM 4 15 Jan 2025 13 Jan 2025 001-37798
4 Open Document Open Filing FORM 4 06 Jan 2025 02 Jan 2025 001-37798
SCHEDULE 13D/A Open Document Open Filing 23 Dec 2024
4 Open Document Open Filing FORM 4 23 Dec 2024 19 Dec 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 17 TO SCHEDULE 13D 18 Nov 2024
4 Open Document Open Filing FORM 4 18 Nov 2024 14 Nov 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 2 TO SCHEDULE 13D 24 Oct 2024
4 Open Document Open Filing 24 Oct 2024 22 Oct 2024 001-38537
SC 13D/A Open Document Open Filing AMENDMENT NO. 16 TO SCHEDULE 13D 04 Oct 2024
4 Open Document Open Filing FORM 4 04 Oct 2024 02 Oct 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 15 TO SCHEDULE 13D 27 Sep 2024
4 Open Document Open Filing FORM 4 27 Sep 2024 25 Sep 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 1 TO SCHEDULE 13D 26 Sep 2024
4 Open Document Open Filing 26 Sep 2024 24 Sep 2024 001-38537
4 Open Document Open Filing 20 Aug 2024 16 Aug 2024 001-38940
4 Open Document Open Filing FORM 4 14 Aug 2024 12 Aug 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 14 TO SCHEDULE 13D 05 Jul 2024
4 Open Document Open Filing FORM 4 05 Jul 2024 02 Jul 2024 001-37798
SC 13D Open Document Open Filing SCHEDULE 13D 26 Jun 2024
4 Open Document Open Filing 24 Jun 2024 20 Jun 2024 001-38537
3 Open Document Open Filing 24 Jun 2024 20 Jun 2024 001-38537
4 Open Document Open Filing 05 Jun 2024 04 Jun 2024 001-38940
SC 13D/A Open Document Open Filing AMENDMENT NO. 13 TO SCHEDULE 13D 12 Apr 2024
4 Open Document Open Filing FORM 4 10 Apr 2024 08 Apr 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 12 TO SCHEDULE 13D 28 Mar 2024
4 Open Document Open Filing FORM 4 28 Mar 2024 17 Jan 2024 001-37798
4 Open Document Open Filing FORM 4 26 Mar 2024 26 Mar 2024 001-37798
4 Open Document Open Filing FORM 4 20 Mar 2024 18 Mar 2024 001-37798
4 Open Document Open Filing FORM 4 18 Mar 2024 14 Mar 2024 001-37798
4 Open Document Open Filing FORM 4 04 Jan 2024 02 Jan 2024 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 11 TO SCHEDULE 13D 17 Nov 2023
4 Open Document Open Filing FORM 4 15 Nov 2023 13 Nov 2023 001-37798
SC 13D Open Document Open Filing SCHEDULE 13D 18 Oct 2023
SC 13D/A Open Document Open Filing AMENDMENT NO. 10 TO SCHEDULE 13D 25 Sep 2023
4 Open Document Open Filing FORM 4 SUBMISSION 30 Jun 2023 28 Jun 2023 001-38940
4 Open Document Open Filing FORM 4 SUBMISSION 02 Jun 2023 01 Jun 2023 001-38940
4 Open Document Open Filing FORM 4 SUBMISSION 04 May 2023 03 May 2023 001-38940
4 Open Document Open Filing FORM 4 SUBMISSION 13 Feb 2023 13 Feb 2023 001-38940
4 Open Document Open Filing FORM 4 04 Jan 2023 02 Jan 2023 001-37798
4 Open Document Open Filing FORM 4 SUBMISSION 10 Jun 2022 08 Jun 2022 001-38940
4/A Open Document Open Filing FORM 4/A SUBMISSION 29 Apr 2022 16 Jun 2021 001-38940
4 Open Document Open Filing FORM 4 13 Apr 2022 11 Apr 2022 001-37798
4 Open Document Open Filing FORM 4 05 Jan 2022 03 Jan 2022 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 9 TO SCHEDULE 13D 27 Dec 2021
4 Open Document Open Filing FORM 4 17 Dec 2021 15 Dec 2021 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 8 TO SCHEDULE 13D 15 Dec 2021
4 Open Document Open Filing FORM 4 13 Dec 2021 09 Dec 2021 001-37798
4 Open Document Open Filing FORM 4 SUBMISSION 20 Aug 2021 18 Aug 2021 001-38940
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jun 2021 16 Jun 2021 001-38940
SC 13D/A Open Document Open Filing AMENDMENT NO. 7 TO SCHEDULE 13D 27 May 2021
4 Open Document Open Filing FORM 4 SUBMISSION 26 May 2021 24 May 2021 001-38940
4 Open Document Open Filing FORM 4 26 May 2021 24 May 2021 001-37798
4 Open Document Open Filing FORM 4 SUBMISSION 25 May 2021 21 May 2021 001-38940
4 Open Document Open Filing FORM 4 25 May 2021 21 May 2021 001-37798
4 Open Document Open Filing FORM 4 01 Apr 2021 30 Mar 2021 001-37798
4 Open Document Open Filing FORM 4 SUBMISSION 08 Mar 2021 05 Mar 2021 001-38940
SC 13G/A Open Document Open Filing SC 13G/A 11 Feb 2021
SC 13G/A Open Document Open Filing AMENDMENT NO. 2 TO SCHEDULE 13G 09 Feb 2021
SC 13D/A Open Document Open Filing AMENDMENT NO. 6 TO SCHEDULE 13D 23 Oct 2020
4 Open Document Open Filing FORM 4 23 Oct 2020 21 Oct 2020 001-37798
4 Open Document Open Filing FORM 4 20 Oct 2020 16 Oct 2020 001-37798
SC 13D/A Open Document Open Filing AMENDMENT NO. 5 TO SCHEDULE 13D 15 Oct 2020
4 Open Document Open Filing FORM 4 14 Oct 2020 09 Oct 2020 001-37798
4 Open Document Open Filing FORM 4 08 Oct 2020 06 Oct 2020 001-37798
4 Open Document Open Filing FORM 4 23 Jun 2020 19 Jun 2020 001-37798
4 Open Document Open Filing FORM 4 SUBMISSION 19 Jun 2020 18 Jun 2020 001-38940
SC 13G Open Document Open Filing SC 13G 14 Feb 2020
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2020
SC 13D/A Open Document Open Filing SC 13D/A 02 Jan 2020
4 Open Document Open Filing 4 26 Dec 2019 23 Dec 2019 001-37798
SC 13D/A Open Document Open Filing SC 13D/A 17 Dec 2019
4 Open Document Open Filing PRIMARY DOCUMENT 16 Dec 2019 12 Dec 2019 001-37798
4 Open Document Open Filing FORM 4 SUBMISSION 12 Dec 2019 10 Dec 2019 001-38501
4 Open Document Open Filing FORM 4 - 09 Dec 2019 05 Dec 2019 001-38940
4/A Open Document Open Filing FORM 4/A SUBMISSION 16 Sep 2019 03 Sep 2019 001-38501
SC 13D/A Open Document Open Filing SC 13D/A 16 Sep 2019
4 Open Document Open Filing PRIMARY DOCUMENT 05 Sep 2019 03 Sep 2019 001-37798
4 Open Document Open Filing PRIMARY DOCUMENT 05 Sep 2019 03 Sep 2019 001-38501
SC 13D/A Open Document Open Filing SC 13D/A 23 Aug 2019
4 Open Document Open Filing 4 21 Aug 2019 19 Aug 2019 001-38501
4 Open Document Open Filing FORM 4 20 Aug 2019 20 Aug 2019 001-37798
4 Open Document Open Filing FORM 4 16 Aug 2019 14 Aug 2019 001-37798
4/A Open Document Open Filing FORM 4/A 16 Aug 2019 10 Nov 2017 001-37798
4 Open Document Open Filing FORM 4 - 01 Jul 2019 01 Jul 2019 001-38940
3 Open Document Open Filing FORM 3 - 26 Jun 2019 26 Jun 2019 001-38940
4 Open Document Open Filing FORM 4 18 Jun 2019 14 Jun 2019 001-37798
4 Open Document Open Filing FORM 4 29 Mar 2019 10 Nov 2017 001-37798
SC 13D Open Document Open Filing SC 13D 27 Mar 2019
SC 13G Open Document Open Filing SC 13G 27 Mar 2019
SC 13G Open Document Open Filing SC 13G 14 Feb 2019
SC 13G Open Document Open Filing SC 13G 14 Feb 2019
4 Open Document Open Filing 4 26 Jun 2018 22 Jun 2018 001-38501
4 Open Document Open Filing PRIMARY DOCUMENT 19 Jun 2018 15 Jun 2018 001-37798
4 Open Document Open Filing 4 31 May 2018 29 May 2018 001-38501
3 Open Document Open Filing 3 23 May 2018 23 May 2018 001-38501
4 Open Document Open Filing PRIMARY DOCUMENT 16 Nov 2017 14 Nov 2017 001-37798
4 Open Document Open Filing PRIMARY DOCUMENT 13 Nov 2017 09 Nov 2017 001-37798
4 Open Document Open Filing PRIMARY DOCUMENT 28 Jun 2017 27 Jun 2017 001-37798
4 Open Document Open Filing PRIMARY DOCUMENT 20 Jun 2017 16 Jun 2017 001-37798
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 01 Jun 2017 001-37798
4 Open Document Open Filing OWNERSHIP DOCUMENT 19 May 2017 17 May 2017 001-37798
4 Open Document Open Filing 4 29 Jun 2016 27 Jun 2016 001-37798
3 Open Document Open Filing 3 21 Jun 2016 21 Jun 2016 001-37798