Ellen B. Richstone

Entity
Individual
Business address
C/O Sonus Networks, Inc., 7 Technology Park Drive, 01886 Westford, MA
Signature Ownership
/s/ Steven R. Barth, Attorney-in-Fact for Ellen B. Richstone
All SEC filings
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Ellen B. Richstone has filed 86 SEC EDGAR filings since 2/25/2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing Jul 1, 2025 Jul 1, 2025 001-33887
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Jun 23, 2025 Jun 18, 2025 001-40886
4 Open Document Open Filing PRIMARY DOCUMENT May 27, 2025 May 22, 2025 001-06615
4 Open Document Open Filing Feb 24, 2025 Feb 21, 2025 001-33887
4 Open Document Open Filing Feb 21, 2025 Feb 19, 2025 001-33887
4 Open Document Open Filing Feb 19, 2025 Feb 18, 2025 001-33887
4 Open Document Open Filing Feb 18, 2025 Feb 14, 2025 001-33887
4 Open Document Open Filing Jun 17, 2024 Jun 14, 2024 001-33887
4 Open Document Open Filing Jun 12, 2024 Jun 11, 2024 001-33887
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Jun 11, 2024 Jun 7, 2024 001-40886
4 Open Document Open Filing PRIMARY DOCUMENT May 24, 2024 May 22, 2024 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT May 21, 2024 May 19, 2024 001-06615
4 Open Document Open Filing Nov 30, 2023 Nov 29, 2023 001-33887
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 19, 2023 Oct 18, 2023 001-15751
4 Open Document Open Filing Aug 16, 2023 Aug 15, 2023 001-33887
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Jun 13, 2023 Jun 9, 2023 001-40886
4 Open Document Open Filing Jun 13, 2023 Jun 9, 2023 001-15751
4 Open Document Open Filing Jun 12, 2023 Jun 12, 2023 001-33887
4 Open Document Open Filing Jun 9, 2023 Jun 9, 2023 001-33887
4 Open Document Open Filing PRIMARY DOCUMENT May 23, 2023 May 19, 2023 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT May 2, 2023 Apr 28, 2023 001-06615
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Nov 29, 2022 Nov 29, 2022 001-40886
4/A Open Document Open Filing AMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Jun 23, 2022 Jun 10, 2022 001-40886
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Jun 13, 2022 Jun 10, 2022 001-40886
4 Open Document Open Filing FORM 4 Jun 13, 2022 Jun 10, 2022 001-33887
4 Open Document Open Filing FORM 4 - Jun 10, 2022 Jun 10, 2022 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT May 27, 2022 May 25, 2022 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT May 2, 2022 Apr 28, 2022 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT Nov 3, 2021 Nov 1, 2021 001-40886
3 Open Document Open Filing PRIMARY DOCUMENT Nov 3, 2021 Nov 1, 2021 001-40886
4 Open Document Open Filing FORM 4 - Jul 6, 2021 Jul 1, 2021 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT Jun 24, 2021 Jun 22, 2021 001-06615
4 Open Document Open Filing FORM 4 - Jun 11, 2021 Jun 10, 2021 001-15751
4 Open Document Open Filing FORM 4 Jun 7, 2021 Jun 4, 2021 001-33887
4 Open Document Open Filing PRIMARY DOCUMENT May 27, 2021 May 25, 2021 001-06615
4 Open Document Open Filing FORM 4 - Jul 9, 2020 Jul 6, 2020 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT Jun 23, 2020 Jun 22, 2020 001-06615
4 Open Document Open Filing FORM 4 Jun 11, 2020 Jun 9, 2020 001-33887
4 Open Document Open Filing PRIMARY DOCUMENT Apr 24, 2020 Apr 23, 2020 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT Aug 14, 2019 Aug 12, 2019 001-06615
4 Open Document Open Filing FORM 4 Aug 12, 2019 Aug 12, 2019 001-33887
4 Open Document Open Filing Jul 3, 2019 Jul 2, 2019 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT Apr 25, 2019 Apr 23, 2019 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT Apr 22, 2019 Apr 19, 2019 001-06615
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 7, 2019 Jan 3, 2019 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT Nov 21, 2018 Nov 20, 2018 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT Jul 27, 2018 Jul 26, 2018 001-06615
4 Open Document Open Filing OWNERSHIP DOCUMENT Jul 3, 2018 Jul 1, 2018 001-15751
4 Open Document Open Filing FORM 4 Jun 13, 2018 Jun 12, 2018 001-33887
4 Open Document Open Filing FORM 4 Jun 11, 2018 Jun 7, 2018 001-33887
4 Open Document Open Filing PRIMARY DOCUMENT Apr 26, 2018 Apr 25, 2018 001-06615
4 Open Document Open Filing PRIMARY DOCUMENT Apr 19, 2018 Apr 19, 2018 001-06615
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 22, 2018 Feb 15, 2018 001-15751
4 Open Document Open Filing FORM 4 Feb 27, 2018 Feb 26, 2018 001-33887
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 2, 2018 Jan 17, 2018 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT Sep 7, 2017 Jul 26, 2017 001-06615
4 Open Document Open Filing FORM 4 SUBMISSION Aug 16, 2017 Aug 15, 2017 001-35905
4 Open Document Open Filing OWNERSHIP DOCUMENT Jul 7, 2017 Jul 5, 2017 001-15751
4 Open Document Open Filing PRIMARY DOCUMENT Jun 29, 2017 Apr 25, 2017 001-06615
3 Open Document Open Filing PRIMARY DOCUMENT Jun 29, 2017 Oct 25, 2016 001-06615
4 Open Document Open Filing FORM 4 Jun 15, 2017 Jun 13, 2017 001-33887
4 Open Document Open Filing FORM 4 SUBMISSION May 17, 2017 May 11, 2017 001-35905
3/A Open Document Open Filing FORM 3/A Feb 28, 2017 Feb 16, 2017 001-33887
3 Open Document Open Filing FORM 3 Feb 22, 2017 Feb 16, 2017 001-33887
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 5, 2017 Jan 3, 2017 001-15751
4 Open Document Open Filing OWNERSHIP DOCUMENT Jul 14, 2016 Jul 13, 2016 001-15751
4 Open Document Open Filing FORM 4 SUBMISSION May 23, 2016 May 19, 2016 001-35905
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 10, 2016 Mar 8, 2016 001-15751
4 Open Document Open Filing OWNERSHIP DOCUMENT Jul 6, 2015 Jul 1, 2015 001-15751
4 Open Document Open Filing FORM 4 SUBMISSION Jun 4, 2015 Jun 2, 2015 001-35437
4 Open Document Open Filing FORM 4 SUBMISSION May 19, 2015 May 15, 2015 001-35905
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 3, 2015 Jan 30, 2015 001-15751
4 Open Document Open Filing FORM 4 SUBMISSION Nov 18, 2014 Nov 14, 2014 001-35437
3 Open Document Open Filing FORM 3 SUBMISSION Nov 14, 2014 Nov 6, 2014 001-35437
4 Open Document Open Filing PRIMARY DOCUMENT Jul 3, 2014 Jul 1, 2014 001-15751
3 Open Document Open Filing PRIMARY DOCUMENT Jul 3, 2014 Jul 1, 2014 001-15751
4 Open Document Open Filing FORM 4 SUBMISSION May 29, 2014 May 27, 2014 001-35905
3 Open Document Open Filing FORM 3 SUBMISSION May 29, 2014 May 27, 2014 001-35905