Kevin Christopher Siebert

Business address
430 North Mccarthy Boulevard, Milpitas, CA, 95035
Top holdings (ownership)
VIAV
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Kevin Christopher Siebert has filed 103 SEC EDGAR filings since 10 Mar 2015

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
144 Open Document Open Filing 08 Dec 2025
4 Open Document Open Filing PRIMARY DOCUMENT 08 Dec 2025 08 Dec 2025 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 04 Nov 2025 03 Nov 2025 000-22874
144 Open Document Open Filing 03 Nov 2025
4 Open Document Open Filing PRIMARY DOCUMENT 25 Sep 2025 25 Sep 2025 000-22874
144 Open Document Open Filing 25 Sep 2025
4 Open Document Open Filing PRIMARY DOCUMENT 25 Sep 2025 23 Sep 2025 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2025 02 Sep 2025 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2025 28 Aug 2025 000-22874
144 Open Document Open Filing 29 Aug 2025
4 Open Document Open Filing PRIMARY DOCUMENT 05 Mar 2025 03 Mar 2025 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 04 Mar 2025 28 Feb 2025 000-22874
144 Open Document Open Filing 03 Mar 2025
144 Open Document Open Filing 26 Sep 2024
4 Open Document Open Filing PRIMARY DOCUMENT 26 Sep 2024 26 Sep 2024 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 26 Sep 2024 24 Sep 2024 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 30 Aug 2024 29 Aug 2024 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 30 Aug 2024 28 Aug 2024 000-22874
144 Open Document Open Filing 29 Aug 2024
4 Open Document Open Filing PRIMARY DOCUMENT 12 Mar 2024 11 Mar 2024 000-22874
144 Open Document Open Filing 11 Mar 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2023 28 Sep 2023 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 28 Sep 2023 26 Sep 2023 000-22874
144 Open Document Open Filing 28 Sep 2023
4 Open Document Open Filing PRIMARY DOCUMENT 01 Sep 2023 30 Aug 2023 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 30 Aug 2023 28 May 2022 000-22874
144 Open Document Open Filing 30 Aug 2023
4 Open Document Open Filing PRIMARY DOCUMENT 26 Sep 2022 23 Sep 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 26 Sep 2022 22 Sep 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 16 Sep 2022 28 Aug 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 01 Sep 2022 31 Aug 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 30 Aug 2022 28 Aug 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jun 2022 01 Jun 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jun 2022 28 May 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 04 Mar 2022 02 Mar 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2022 28 Feb 2022 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2021 01 Dec 2021 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 30 Nov 2021 28 Nov 2021 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 01 Oct 2021 29 Sep 2021 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 27 Sep 2021 23 Sep 2021 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2021 01 Sep 2021 000-22874
4 Open Document Open Filing PRIMARY DOCUMENT 31 Aug 2021 28 Aug 2021 000-22874
4 Open Document Open Filing FORM 4 02 Jun 2021 28 May 2021 000-22874
4 Open Document Open Filing FORM 4 02 Mar 2021 28 Feb 2021 000-22874
4 Open Document Open Filing FORM 4 01 Dec 2020 28 Nov 2020 000-22874
4 Open Document Open Filing FORM 4 29 Sep 2020 25 Sep 2020 000-22874
4 Open Document Open Filing FORM 4 29 Sep 2020 21 Aug 2018 000-22874
4 Open Document Open Filing FORM 4 04 Sep 2020 02 Sep 2020 000-22874
4 Open Document Open Filing FORM 4 01 Sep 2020 28 Aug 2020 000-22874
4 Open Document Open Filing FORM 4 04 Jun 2020 02 Jun 2020 000-22874
4 Open Document Open Filing FORM 4 01 Jun 2020 28 May 2020 000-22874
4 Open Document Open Filing FORM 4 04 Mar 2020 03 Mar 2020 000-22874
4 Open Document Open Filing FORM 4 03 Mar 2020 28 Feb 2020 000-22874
4 Open Document Open Filing FORM 4 05 Dec 2019 03 Dec 2019 000-22874
4 Open Document Open Filing FORM 4 02 Dec 2019 28 Nov 2019 000-22874
4 Open Document Open Filing FORM 4 02 Oct 2019 30 Sep 2019 000-22874
4 Open Document Open Filing FORM 4 30 Sep 2019 26 Sep 2019 000-22874
4 Open Document Open Filing FORM 4 04 Sep 2019 30 Aug 2019 000-22874
4 Open Document Open Filing FORM 4 30 Aug 2019 28 Aug 2019 000-22874
4 Open Document Open Filing FORM 4 20 Aug 2019 17 Aug 2019 000-22874
4 Open Document Open Filing FORM 4 04 Jun 2019 31 May 2019 000-22874
4 Open Document Open Filing FORM 4 29 May 2019 28 May 2019 000-22874
4 Open Document Open Filing FORM 4 22 May 2019 21 May 2019 000-22874
4 Open Document Open Filing FORM 4 20 May 2019 17 May 2019 000-22874
4 Open Document Open Filing FORM 4 05 Mar 2019 04 Mar 2019 000-22874
4 Open Document Open Filing FORM 4 01 Mar 2019 28 Feb 2019 000-22874
4 Open Document Open Filing FORM 4 20 Feb 2019 20 Feb 2019 000-22874
4 Open Document Open Filing FORM 4 20 Feb 2019 17 Feb 2019 000-22874
4 Open Document Open Filing FORM 4 30 Nov 2018 28 Nov 2018 000-22874
4 Open Document Open Filing FORM 4 20 Nov 2018 20 Nov 2018 000-22874
4 Open Document Open Filing FORM 4 20 Nov 2018 17 Nov 2018 000-22874
4 Open Document Open Filing FORM 4 05 Oct 2018 04 Oct 2018 000-22874
4 Open Document Open Filing FORM 4 02 Oct 2018 28 Sep 2018 000-22874
4 Open Document Open Filing FORM 4 30 Aug 2018 28 Aug 2018 000-22874
4 Open Document Open Filing FORM 4 27 Aug 2018 23 Aug 2018 000-22874
4 Open Document Open Filing FORM 4 21 Aug 2018 17 Aug 2018 000-22874
4 Open Document Open Filing FORM 4 23 May 2018 21 May 2018 000-22874
4 Open Document Open Filing FORM 4 21 May 2018 17 May 2018 000-22874
4 Open Document Open Filing FORM 4 22 Feb 2018 20 Feb 2018 000-22874
4 Open Document Open Filing FORM 4 20 Feb 2018 15 Feb 2018 000-22874
4 Open Document Open Filing FORM 4 30 Nov 2017 28 Nov 2017 000-22874
4 Open Document Open Filing FORM 4 21 Nov 2017 17 Nov 2017 000-22874
4 Open Document Open Filing FORM 4 02 Oct 2017 28 Sep 2017 000-22874
4 Open Document Open Filing FORM 4 30 Aug 2017 28 Aug 2017 000-22874
4 Open Document Open Filing FORM 4 21 Aug 2017 17 Aug 2017 000-22874
4 Open Document Open Filing FORM 4 23 May 2017 22 May 2017 000-22874
4 Open Document Open Filing FORM 4 24 Feb 2017 21 Feb 2017 000-22874
4 Open Document Open Filing FORM 4 17 Feb 2017 15 Feb 2017 000-22874
4 Open Document Open Filing FORM 4 23 Nov 2016 21 Nov 2016 000-22874
4 Open Document Open Filing FORM 4 30 Sep 2016 29 Sep 2016 000-22874
4 Open Document Open Filing FORM 4 23 Aug 2016 20 Aug 2016 000-22874
4 Open Document Open Filing FORM 4 19 Aug 2016 17 Aug 2016 000-22874
4 Open Document Open Filing FORM 4 24 May 2016 20 May 2016 000-22874
4 Open Document Open Filing FORM 4 24 Feb 2016 23 Feb 2016 000-22874
4 Open Document Open Filing FORM 4 22 Feb 2016 18 Feb 2016 000-22874
4 Open Document Open Filing FORM 4 17 Feb 2016 15 Feb 2016 000-22874
4 Open Document Open Filing FORM 4 23 Nov 2015 20 Nov 2015 000-22874
4 Open Document Open Filing FORM 4 25 Aug 2015 21 Aug 2015 000-22874
4 Open Document Open Filing FORM 4 24 Aug 2015 20 Aug 2015 000-22874
4 Open Document Open Filing FORM 4 27 May 2015 22 May 2015 000-22874
4 Open Document Open Filing FORM 4 22 May 2015 20 May 2015 000-22874
4 Open Document Open Filing FORM 4 12 May 2015 11 May 2015 000-22874
3 Open Document Open Filing FORM 3 10 Mar 2015 01 Mar 2015 000-22874