Shigeyuki Hamamatsu

Business address
1875 Charleston Road, Mountain View, CA, 94043
Top holdings (ownership)
OOMA
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Shigeyuki Hamamatsu has filed 78 SEC EDGAR filings since 02 Nov 2006

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 4 17 Dec 2025 15 Dec 2025 001-37493
4 Open Document Open Filing 4 12 Dec 2025 10 Dec 2025 001-37493
4 Open Document Open Filing 4 10 Dec 2025 08 Dec 2025 001-37493
4 Open Document Open Filing 4 03 Dec 2025 01 Dec 2025 001-37493
4 Open Document Open Filing 4 17 Sep 2025 10 Sep 2025 001-37493
4 Open Document Open Filing 4 05 Sep 2025 04 Sep 2025 001-37493
144 Open Document Open Filing 04 Sep 2025
4 Open Document Open Filing 4 03 Sep 2025 01 Sep 2025 001-37493
4 Open Document Open Filing 4 17 Jun 2025 15 Jun 2025 001-37493
4 Open Document Open Filing 4 12 Jun 2025 10 Jun 2025 001-37493
4 Open Document Open Filing 4 10 Jun 2025 08 Jun 2025 001-37493
144 Open Document Open Filing 09 Jun 2025
4 Open Document Open Filing 4 03 Jun 2025 01 Jun 2025 001-37493
4 Open Document Open Filing 4 18 Mar 2025 15 Mar 2025 001-37493
4 Open Document Open Filing 4 11 Mar 2025 08 Mar 2025 001-37493
4 Open Document Open Filing 4 04 Mar 2025 01 Mar 2025 001-37493
4 Open Document Open Filing 4 17 Dec 2024 15 Dec 2024 001-37493
4 Open Document Open Filing 4 12 Dec 2024 10 Dec 2024 001-37493
144 Open Document Open Filing 10 Dec 2024
4 Open Document Open Filing 4 09 Dec 2024 08 Dec 2024 001-37493
4 Open Document Open Filing 4 03 Dec 2024 01 Dec 2024 001-37493
4 Open Document Open Filing 4 17 Sep 2024 15 Sep 2024 001-37493
4 Open Document Open Filing 4 10 Sep 2024 08 Sep 2024 001-37493
4 Open Document Open Filing 4 04 Sep 2024 01 Sep 2024 001-37493
4 Open Document Open Filing 4 18 Jun 2024 15 Jun 2024 001-37493
4 Open Document Open Filing 4 11 Jun 2024 08 Jun 2024 001-37493
4 Open Document Open Filing 4 04 Jun 2024 01 Jun 2024 001-37493
4 Open Document Open Filing 4 14 May 2024 15 Mar 2024 001-37493
4 Open Document Open Filing 4 19 Mar 2024 15 Mar 2024 001-37493
4 Open Document Open Filing 4 12 Mar 2024 08 Mar 2024 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 04 Mar 2024 01 Mar 2024 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 19 Dec 2023 15 Dec 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 11 Dec 2023 08 Dec 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 05 Dec 2023 01 Dec 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 18 Sep 2023 15 Sep 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 11 Sep 2023 08 Sep 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2023 01 Sep 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 20 Jun 2023 15 Jun 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jun 2023 08 Jun 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jun 2023 01 Jun 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 17 Mar 2023 15 Mar 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 10 Mar 2023 08 Mar 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 03 Mar 2023 01 Mar 2023 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 05 Dec 2022 01 Dec 2022 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 19 Sep 2022 15 Sep 2022 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2022 01 Sep 2022 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jun 2022 01 Jun 2022 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 03 Mar 2022 01 Mar 2022 001-37493
4 Open Document Open Filing FORM 4 SUBMISSION 20 Sep 2021 08 Sep 2021 001-37493
3 Open Document Open Filing FORM 3 SUBMISSION 20 Sep 2021 07 Sep 2021 001-37493
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2020 30 Nov 2020 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 05 Nov 2020 03 Nov 2020 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 06 Oct 2020 02 Oct 2020 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 06 Jan 2020 03 Jan 2020 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 04 Nov 2019 31 Oct 2019 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 03 Oct 2019 01 Oct 2019 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 06 Dec 2018 30 Nov 2018 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 03 Oct 2018 02 Oct 2018 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 31 Aug 2018 31 Aug 2018 001-33301
4 Open Document Open Filing PRIMARY DOCUMENT 30 Jan 2018 29 Sep 2017 001-33301
3 Open Document Open Filing PRIMARY DOCUMENT 30 Jan 2018 05 Sep 2017 001-33301