Jack Y. Zhang

Business address
11570 6 Th Street, Rancho Cucamonga, CA, 91730
Top holdings (ownership)
AMPH
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Jack Y. Zhang has filed 70 SEC EDGAR filings since 24 Jun 2014

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 16 Jun 2025 13 Jun 2025 001-36509
4 Open Document Open Filing 18 Mar 2025 14 Mar 2025 001-36509
4 Open Document Open Filing 12 Mar 2025 10 Mar 2025 001-36509
4 Open Document Open Filing 10 Mar 2025 06 Mar 2025 001-36509
4 Open Document Open Filing 06 Mar 2025 04 Mar 2025 001-36509
SCHEDULE 13G/A Open Document Open Filing 07 Feb 2025
4 Open Document Open Filing 12 Nov 2024 11 Nov 2024 001-36509
4 Open Document Open Filing 16 Sep 2024 13 Sep 2024 001-36509
4 Open Document Open Filing 11 Jun 2024 10 Jun 2024 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 19 Mar 2024 15 Mar 2024 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 08 Mar 2024 06 Mar 2024 001-36509
4 Open Document Open Filing 06 Mar 2024 04 Mar 2024 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 09 Feb 2024
4 Open Document Open Filing OWNERSHIP DOCUMENT 11 Jan 2024 10 Jan 2024 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 10 Jan 2024 08 Jan 2024 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 20 Mar 2023 16 Mar 2023 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 17 Mar 2023 15 Mar 2023 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 08 Mar 2023 06 Mar 2023 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 27 Jan 2023
4 Open Document Open Filing OWNERSHIP DOCUMENT 23 May 2022 20 May 2022 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 20 May 2022 18 May 2022 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 18 May 2022 16 May 2022 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 18 Mar 2022 16 Mar 2022 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 17 Mar 2022 15 Mar 2022 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 11 Feb 2022
4 Open Document Open Filing OWNERSHIP DOCUMENT 18 Mar 2021 16 Mar 2021 001-36509
4 Open Document Open Filing OWNERSHIP DOCUMENT 17 Mar 2021 15 Mar 2021 001-36509
4 Open Document Open Filing 4 18 Feb 2021 16 Feb 2021 001-36509
4 Open Document Open Filing 4 12 Feb 2021 10 Feb 2021 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 12 Feb 2021
4 Open Document Open Filing 4 09 Feb 2021 05 Feb 2021 001-36509
4 Open Document Open Filing 4 05 Feb 2021 03 Feb 2021 001-36509
4 Open Document Open Filing 4 03 Feb 2021 01 Feb 2021 001-36509
4 Open Document Open Filing 4 18 Mar 2020 16 Mar 2020 001-36509
4 Open Document Open Filing 4 17 Mar 2020 15 Mar 2020 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2020
4 Open Document Open Filing 4 12 Sep 2019 11 Sep 2019 001-36509
4 Open Document Open Filing 4 18 Mar 2019 15 Mar 2019 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2019
4 Open Document Open Filing 4 17 Dec 2018 14 Dec 2018 001-36509
4 Open Document Open Filing 4 13 Dec 2018 11 Dec 2018 001-36509
4 Open Document Open Filing 4 03 Jul 2018 02 Jul 2018 001-36509
4 Open Document Open Filing 4 17 May 2018 15 May 2018 001-36509
4 Open Document Open Filing 4 28 Mar 2018 26 Mar 2018 001-36509
4 Open Document Open Filing 4 20 Mar 2018 16 Mar 2018 001-36509
4 Open Document Open Filing 4 16 Mar 2018 15 Mar 2018 001-36509
SC 13G/A Open Document Open Filing SC 13G/A 09 Feb 2018
4 Open Document Open Filing 4 19 Dec 2017 15 Dec 2017 001-36509
4 Open Document Open Filing 4 14 Nov 2017 13 Nov 2017 001-36509
4 Open Document Open Filing 4 15 Sep 2017 13 Sep 2017 001-36509
4 Open Document Open Filing 4 25 May 2017 23 May 2017 001-36509
4 Open Document Open Filing 4 28 Mar 2017 26 Mar 2017 001-36509
4 Open Document Open Filing 4 20 Mar 2017 16 Mar 2017 001-36509
SC 13G/A Open Document Open Filing SC 13G AMENDMENT NO. 2 13 Feb 2017
4 Open Document Open Filing 4 22 Sep 2016 20 Sep 2016 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 29 Mar 2016 26 Mar 2016 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 21 Mar 2016 17 Mar 2016 001-36509
SC 13G/A Open Document Open Filing SC 13G AMENDMENT NO. 1 16 Feb 2016
4/A Open Document Open Filing FORM 4/A SUBMISSION 03 Feb 2016 15 Jun 2015 001-36509
4/A Open Document Open Filing FORM 4/A SUBMISSION 03 Feb 2016 10 Jun 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 11 Dec 2015 09 Dec 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 08 Dec 2015 04 Dec 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 03 Dec 2015 01 Dec 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jun 2015 15 Jun 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 12 Jun 2015 05 Jun 2015 001-36509
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jun 2015 27 Mar 2015 001-36509
4 Open Document Open Filing 4 30 Mar 2015 26 Mar 2015 001-36509
SC 13G Open Document Open Filing SC 13G 12 Feb 2015
3 Open Document Open Filing 3 24 Jun 2014 24 Jun 2014 001-36509