Leon Trefler

Business address
225 Wyman Street, Ste 300, Waltham, MA, 02451
Top holdings (ownership)
PEGA
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Leon Trefler has filed 269 SEC EDGAR filings since 19 Jan 2010

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 23 Dec 2025 19 Dec 2025 001-11859
4 Open Document Open Filing FORM 4 09 Dec 2025 05 Dec 2025 001-11859
4 Open Document Open Filing FORM 4 03 Dec 2025 01 Dec 2025 001-11859
4 Open Document Open Filing FORM 4 27 Oct 2025 23 Oct 2025 001-11859
144 Open Document Open Filing 23 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 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
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 04 Mar 2025
4 Open Document Open Filing FORM 4 21 Feb 2025 19 Feb 2025 001-11859
4 Open Document Open Filing FORM 4 14 Feb 2025 12 Feb 2025 001-11859
4 Open Document Open Filing FORM 4 03 Jan 2025 31 Dec 2024 001-11859
144 Open Document Open Filing 31 Dec 2024
4 Open Document Open Filing FORM 4 27 Dec 2024 24 Dec 2024 001-11859
4 Open Document Open Filing FORM 4 10 Dec 2024 09 Dec 2024 001-11859
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 04 Nov 2024 31 Oct 2024 001-11859
144 Open Document Open Filing 01 Nov 2024
144 Open Document Open Filing 31 Oct 2024
4 Open Document Open Filing FORM 4 01 Oct 2024 30 Sep 2024 001-11859
144 Open Document Open Filing 30 Sep 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 02 Aug 2024 31 Jul 2024 001-11859
144 Open Document Open Filing 31 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 11 Jun 2024 07 Jun 2024 001-11859
4 Open Document Open Filing FORM 4 04 Jun 2024 31 May 2024 001-11859
144 Open Document Open Filing 31 May 2024
4 Open Document Open Filing FORM 4 01 May 2024 30 Apr 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
4 Open Document Open Filing FORM 4 22 Feb 2024 20 Feb 2024 001-11859
144 Open Document Open Filing 20 Feb 2024
4 Open Document Open Filing FORM 4 16 Feb 2024 14 Feb 2024 001-11859
4 Open Document Open Filing FORM 4 31 Jan 2024 29 Jan 2024 001-11859
4 Open Document Open Filing FORM 4 21 Dec 2023 20 Dec 2023 001-11859
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
144 Open Document Open Filing 01 Dec 2023
4 Open Document Open Filing FORM 4 21 Nov 2023 17 Nov 2023 001-11859
144 Open Document Open Filing 17 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 02 Aug 2023 01 Aug 2023 001-11859
4 Open Document Open Filing FORM 4 06 Jul 2023 05 Jul 2023 001-11859
4 Open Document Open Filing FORM 4 15 Jun 2023 13 Jun 2023 001-11859
144 Open Document Open Filing 13 Jun 2023
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 21 Feb 2023 16 Feb 2023 001-11859
5 Open Document Open Filing FORM 5 14 Feb 2023 31 Dec 2022 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
3 Open Document Open Filing FORM 3 03 Mar 2022 16 Feb 2022 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 09 Feb 2021 05 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 22 Jan 2021 20 Jan 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 02 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 05 Aug 2020 03 Aug 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 03 Apr 2020 01 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/A Open Document Open Filing FORM 4/A SUBMISSION 04 Mar 2020 02 Dec 2016 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 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 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 11 Sep 2019 09 Sep 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 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 12 Jun 2019 10 Jun 2019 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jun 2019 03 Jun 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 12 Mar 2019 11 Mar 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 18 Jan 2019 16 Jan 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 12 Dec 2018 10 Dec 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 11 Dec 2018 07 Dec 2018 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 11 Sep 2018 10 Sep 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 Sep 2018 07 Sep 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2018 04 Sep 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 19 Jun 2018 14 Jun 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 13 Jun 2018 11 Jun 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 11 Jun 2018 07 Jun 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 13 Mar 2018 09 Mar 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Mar 2018 07 Mar 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 06 Mar 2018 02 Mar 2018 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 11 Dec 2017 07 Dec 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Dec 2017 04 Dec 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 13 Sep 2017 11 Sep 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 11 Sep 2017 07 Sep 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 07 Sep 2017 05 Sep 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 23 Aug 2017 21 Aug 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jun 2017 07 Jun 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jun 2017 02 Jun 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 23 May 2017 19 May 2017 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Mar 2017 07 Mar 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 09 Dec 2016 07 Dec 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 05 Dec 2016 02 Dec 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Nov 2016 07 Nov 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Sep 2016 07 Sep 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2016 02 Sep 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 08 Jun 2016 07 Jun 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 06 Jun 2016 02 Jun 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 May 2016 09 May 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 21 Mar 2016 17 Mar 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 11 Mar 2016 09 Mar 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Mar 2016 07 Mar 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Mar 2016 02 Mar 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 01 Mar 2016 29 Feb 2016 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 21 Dec 2015 17 Dec 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 09 Dec 2015 07 Dec 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 18 Sep 2015 17 Sep 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 Sep 2015 08 Sep 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 19 Jun 2015 17 Jun 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 Jun 2015 08 Jun 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 20 Mar 2015 02 Mar 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 19 Mar 2015 17 Mar 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 11 Mar 2015 09 Mar 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 04 Mar 2015 02 Mar 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 02 Mar 2015 02 Mar 2015 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 18 Dec 2014 17 Dec 2014 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 17 Dec 2014 15 Dec 2014 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 10 Dec 2014 08 Dec 2014 001-11859
4 Open Document Open Filing FORM 4 SUBMISSION 03 Dec 2014 01 Dec 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER SEPTEMBER 17, 2014 - QUARTERLY VESTING OF 3/17/2011 GRANT 19 Sep 2014 17 Sep 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER SEPTEMBER 15, 2014 - QUARTERLY VESTING OF 12/15/2009 GRANT 17 Sep 2014 15 Sep 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER SEPTEMBER 9, 2014 - SALE 10 Sep 2014 09 Sep 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER SEPTEMBER 7, 2014 - QUARTERLY VESTING OF 3-07-12 GRANT 09 Sep 2014 07 Sep 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER SEPTEMBER 1, 2014 - QUARTERLY VESTING AFTER 1ST YEAR OF 3-01 03 Sep 2014 01 Sep 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER JUNE 17, 2014 - QUARTERLY VESTING AFTER 1ST YEAR OF 3-17-11 18 Jun 2014 17 Jun 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER JUNE 15, 2014 - QUARTERLY VESTING OF 12-15-09 GRANT 17 Jun 2014 15 Jun 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER JUNE 7, 2014 QUARTERLY VESTING OF 03/07/2012 RSU GRANT 10 Jun 2014 07 Jun 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER JUNE 1, 2014 QUARTERLY VESTING OF 03/01/2010 RSU GRANT 03 Jun 2014 01 Jun 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER MARCH 17, 2014 - QUARTERLY VESTING AFTER 1ST YEAR OF 3-17-11 18 Mar 2014 17 Mar 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER MARCH 15, 2014 - QUARTERLY VESTING OF 12-15-09 GRANT 18 Mar 2014 15 Mar 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER MARCH 7, 2014 PERIODIC GRANT 11 Mar 2014 07 Mar 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER MARCH 7, 2014 QUARTERLY VESTING OF 03/07/2012 RSU GRANT 11 Mar 2014 07 Mar 2014 001-11859
4 Open Document Open Filing FORM 4 LEON TREFLER MARCH 1, 2014 QUARTERLY VESTING OF 03/01/2010 RSU GRANT 04 Mar 2014 01 Mar 2014 001-11859