KENNETH STILLWELL

Business address
225 Wyman Street, Ste 300, Waltham, MA, 02451
Top holdings (ownership)
PEGA
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KENNETH STILLWELL has filed 186 SEC EDGAR filings since 21 Jul 2016

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 16 Dec 2025 12 Dec 2025 001-11859
4 Open Document Open Filing FORM 4 12 Dec 2025 10 Dec 2025 001-11859
4 Open Document Open Filing FORM 4 09 Dec 2025 05 Dec 2025 001-11859
144 Open Document Open Filing 05 Dec 2025
4 Open Document Open Filing FORM 4 03 Dec 2025 01 Dec 2025 001-11859
4 Open Document Open Filing FORM 4 05 Nov 2025 03 Nov 2025 001-11859
144 Open Document Open Filing 03 Nov 2025
4 Open Document Open Filing FORM 4 28 Oct 2025 24 Oct 2025 001-11859
144 Open Document Open Filing 24 Oct 2025
4 Open Document Open Filing FORM 4 09 Sep 2025 05 Sep 2025 001-11859
4 Open Document Open Filing FORM 4 04 Sep 2025 01 Sep 2025 001-11859
4 Open Document Open Filing FORM 4 05 Aug 2025 01 Aug 2025 001-11859
144 Open Document Open Filing 04 Aug 2025
144 Open Document Open Filing 01 Aug 2025
4 Open Document Open Filing FORM 4 29 Jul 2025 28 Jul 2025 001-11859
4 Open Document Open Filing FORM 4 03 Jul 2025 01 Jul 2025 001-11859
144 Open Document Open Filing 01 Jul 2025
4 Open Document Open Filing FORM 4 10 Jun 2025 09 Jun 2025 001-11859
4 Open Document Open Filing FORM 4 09 Jun 2025 05 Jun 2025 001-11859
4 Open Document Open Filing FORM 4 03 Jun 2025 02 Jun 2025 001-11859
144 Open Document Open Filing 02 Jun 2025
4 Open Document Open Filing FORM 4 15 May 2025 14 May 2025 001-11859
4 Open Document Open Filing FORM 4 05 May 2025 01 May 2025 001-11859
144 Open Document Open Filing 01 May 2025
4 Open Document Open Filing FORM 4 29 Apr 2025 25 Apr 2025 001-11859
144 Open Document Open Filing 25 Apr 2025
4 Open Document Open Filing FORM 4 03 Apr 2025 01 Apr 2025 001-11859
144 Open Document Open Filing 01 Apr 2025
4 Open Document Open Filing FORM 4 11 Mar 2025 07 Mar 2025 001-11859
4 Open Document Open Filing FORM 4 06 Mar 2025 04 Mar 2025 001-11859
4 Open Document Open Filing FORM 4 04 Mar 2025 03 Mar 2025 001-11859
144 Open Document Open Filing 03 Mar 2025
4 Open Document Open Filing FORM 4 19 Feb 2025 14 Feb 2025 001-11859
4 Open Document Open Filing FORM 4 14 Feb 2025 12 Feb 2025 001-11859
144 Open Document Open Filing 14 Feb 2025
4 Open Document Open Filing FORM 4 05 Feb 2025 03 Feb 2025 001-11859
144 Open Document Open Filing 03 Feb 2025
4 Open Document Open Filing FORM 4 03 Jan 2025 02 Jan 2025 001-11859
144 Open Document Open Filing 02 Jan 2025
4 Open Document Open Filing FORM 4 12 Dec 2024 10 Dec 2024 001-11859
4 Open Document Open Filing FORM 4 10 Dec 2024 09 Dec 2024 001-11859
144 Open Document Open Filing 10 Dec 2024
4 Open Document Open Filing FORM 4 04 Dec 2024 03 Dec 2024 001-11859
4 Open Document Open Filing FORM 4 03 Dec 2024 02 Dec 2024 001-11859
144 Open Document Open Filing 02 Dec 2024
4 Open Document Open Filing FORM 4 08 Nov 2024 06 Nov 2024 001-11859
144 Open Document Open Filing 06 Nov 2024
4 Open Document Open Filing FORM 4 29 Oct 2024 25 Oct 2024 001-11859
144 Open Document Open Filing 25 Oct 2024
4 Open Document Open Filing FORM 4 02 Oct 2024 01 Oct 2024 001-11859
144 Open Document Open Filing 01 Oct 2024
4 Open Document Open Filing FORM 4 10 Sep 2024 09 Sep 2024 001-11859
4 Open Document Open Filing FORM 4 04 Sep 2024 03 Sep 2024 001-11859
144 Open Document Open Filing 03 Sep 2024
4 Open Document Open Filing FORM 4 23 Aug 2024 21 Aug 2024 001-11859
144 Open Document Open Filing 21 Aug 2024
4 Open Document Open Filing FORM 4 05 Aug 2024 01 Aug 2024 001-11859
144 Open Document Open Filing 01 Aug 2024
4 Open Document Open Filing FORM 4 26 Jul 2024 25 Jul 2024 001-11859
144 Open Document Open Filing 25 Jul 2024
4 Open Document Open Filing FORM 4 03 Jul 2024 01 Jul 2024 001-11859
144 Open Document Open Filing 01 Jul 2024
4 Open Document Open Filing FORM 4 28 Jun 2024 26 Jun 2024 001-11859
144 Open Document Open Filing 26 Jun 2024
4 Open Document Open Filing FORM 4 11 Jun 2024 07 Jun 2024 001-11859
4 Open Document Open Filing FORM 4 04 Jun 2024 03 Jun 2024 001-11859
144 Open Document Open Filing 03 Jun 2024
4 Open Document Open Filing FORM 4 03 May 2024 01 May 2024 001-11859
4 Open Document Open Filing FORM 4 03 Apr 2024 01 Apr 2024 001-11859
4 Open Document Open Filing FORM 4 11 Mar 2024 07 Mar 2024 001-11859
4 Open Document Open Filing FORM 4 07 Mar 2024 05 Mar 2024 001-11859
4 Open Document Open Filing FORM 4 05 Mar 2024 01 Mar 2024 001-11859
144 Open Document Open Filing 01 Mar 2024
4 Open Document Open Filing FORM 4 26 Feb 2024 22 Feb 2024 001-11859
144 Open Document Open Filing 22 Feb 2024
4 Open Document Open Filing FORM 4 21 Feb 2024 16 Feb 2024 001-11859
4 Open Document Open Filing FORM 4 16 Feb 2024 14 Feb 2024 001-11859
144 Open Document Open Filing 16 Feb 2024
4 Open Document Open Filing FORM 4 08 Dec 2023 06 Dec 2023 001-11859
4 Open Document Open Filing FORM 4 05 Dec 2023 01 Dec 2023 001-11859
4 Open Document Open Filing FORM 4 28 Nov 2023 24 Nov 2023 001-11859
144 Open Document Open Filing 24 Nov 2023
4 Open Document Open Filing FORM 4 08 Sep 2023 06 Sep 2023 001-11859
4 Open Document Open Filing FORM 4 06 Sep 2023 01 Sep 2023 001-11859
4 Open Document Open Filing FORM 4 07 Jun 2023 05 Jun 2023 001-11859
4 Open Document Open Filing FORM 4 05 Jun 2023 01 Jun 2023 001-11859
4 Open Document Open Filing FORM 4 09 Mar 2023 07 Mar 2023 001-11859
4 Open Document Open Filing FORM 4 08 Mar 2023 06 Mar 2023 001-11859
4 Open Document Open Filing FORM 4 03 Mar 2023 01 Mar 2023 001-11859
4 Open Document Open Filing FORM 4 06 Dec 2022 02 Dec 2022 001-11859
4 Open Document Open Filing FORM 4 04 Nov 2022 02 Nov 2022 001-11859
4 Open Document Open Filing FORM 4 07 Sep 2022 02 Sep 2022 001-11859
4 Open Document Open Filing FORM 4 07 Jun 2022 03 Jun 2022 001-11859
4 Open Document Open Filing FORM 4 03 Jun 2022 02 Jun 2022 001-11859
4 Open Document Open Filing FORM 4 09 Mar 2022 07 Mar 2022 001-11859
4 Open Document Open Filing FORM 4 03 Mar 2022 01 Mar 2022 001-11859
4 Open Document Open Filing FORM 4 03 Feb 2022 01 Feb 2022 001-11859
4 Open Document Open Filing FORM 4 05 Jan 2022 03 Jan 2022 001-11859
4 Open Document Open Filing FORM 4 08 Dec 2021 06 Dec 2021 001-11859
4 Open Document Open Filing FORM 4 06 Dec 2021 02 Dec 2021 001-11859
4 Open Document Open Filing FORM 4 03 Dec 2021 01 Dec 2021 001-11859
4 Open Document Open Filing FORM 4 08 Nov 2021 04 Nov 2021 001-11859
4 Open Document Open Filing FORM 4 02 Nov 2021 01 Nov 2021 001-11859
4 Open Document Open Filing FORM 4 05 Oct 2021 01 Oct 2021 001-11859
4 Open Document Open Filing FORM 4 09 Sep 2021 07 Sep 2021 001-11859
4 Open Document Open Filing FORM 4 03 Sep 2021 01 Sep 2021 001-11859
4 Open Document Open Filing FORM 4 26 Aug 2021 24 Aug 2021 001-11859
4 Open Document Open Filing FORM 4 10 Aug 2021 06 Aug 2021 001-11859
4 Open Document Open Filing FORM 4 04 Aug 2021 02 Aug 2021 001-11859
4 Open Document Open Filing FORM 4 06 Jul 2021 01 Jul 2021 001-11859
4 Open Document Open Filing FORM 4 09 Jun 2021 07 Jun 2021 001-11859
4 Open Document Open Filing FORM 4 04 Jun 2021 02 Jun 2021 001-11859
4 Open Document Open Filing FORM 4 03 Jun 2021 01 Jun 2021 001-11859
4 Open Document Open Filing FORM 4 05 May 2021 03 May 2021 001-11859
4 Open Document Open Filing FORM 4 05 Apr 2021 01 Apr 2021 001-11859
4 Open Document Open Filing FORM 4 09 Mar 2021 05 Mar 2021 001-11859
4 Open Document Open Filing FORM 4 04 Mar 2021 02 Mar 2021 001-11859
4 Open Document Open Filing FORM 4 03 Mar 2021 01 Mar 2021 001-11859
4 Open Document Open Filing FORM 4 23 Feb 2021 19 Feb 2021 001-11859
4 Open Document Open Filing FORM 4 03 Feb 2021 01 Feb 2021 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Jan 2021 04 Jan 2021 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Dec 2020 07 Dec 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Dec 2020 01 Dec 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Nov 2020 02 Nov 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Oct 2020 01 Oct 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 Sep 2020 08 Sep 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Sep 2020 01 Sep 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Aug 2020 30 Jul 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Jul 2020 01 Jul 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jun 2020 05 Jun 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jun 2020 01 Jun 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 May 2020 01 May 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 23 Apr 2020 21 Apr 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 Mar 2020 06 Mar 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Mar 2020 03 Mar 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Mar 2020 02 Mar 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 25 Feb 2020 21 Feb 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Feb 2020 03 Feb 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jan 2020 02 Jan 2020 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 18 Dec 2019 16 Dec 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Dec 2019 05 Dec 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Dec 2019 02 Dec 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 13 Nov 2019 12 Nov 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Nov 2019 01 Nov 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Oct 2019 01 Oct 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Sep 2019 03 Sep 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 13 Aug 2019 09 Aug 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Aug 2019 01 Aug 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jul 2019 01 Jul 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jun 2019 03 Jun 2019 001-11859
4/A Open Document Open Filing FORM 4/A SUBMISSION 05 Jun 2019 01 May 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 13 May 2019 09 May 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 May 2019 01 May 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 02 Apr 2019 01 Apr 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 08 Mar 2019 06 Mar 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Mar 2019 04 Mar 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Mar 2019 01 Mar 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 26 Feb 2019 22 Feb 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Feb 2019 01 Feb 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jan 2019 02 Jan 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Dec 2018 03 Dec 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 14 Nov 2018 12 Nov 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Nov 2018 01 Nov 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Oct 2018 01 Oct 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2018 04 Sep 2018 001-11859
4/A Open Document Open Filing FORM 4/A SUBMISSION 17 Aug 2018 01 Aug 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 14 Aug 2018 10 Aug 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Aug 2018 01 Aug 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jul 2018 02 Jul 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Jun 2018 04 Jun 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jun 2018 01 Jun 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 16 May 2018 14 May 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 May 2018 01 May 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Apr 2018 02 Apr 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 07 Mar 2018 05 Mar 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Mar 2018 01 Mar 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Feb 2018 01 Feb 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jan 2018 02 Jan 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Dec 2017 01 Dec 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Nov 2017 01 Nov 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Oct 2017 02 Oct 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2017 01 Sep 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Aug 2017 01 Aug 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Mar 2017 02 Mar 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Aug 2016 01 Aug 2016 001-11859
3 Open Document Open Filing FORM 3 SUBMISSION 21 Jul 2016 07 Jul 2016 001-11859