Rong Zhou SEC EDGAR Filings (CIK 0001645326)

SEC EDGAR filings, ownership reports, and insider transactions for Rong Zhou.

Business address
C/O Amphastar Pharmaceuticals Inc., 11570 Sixth Street, Rancho Cucamonga, CA, 91730
Top holdings (ownership)
AMPH
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Rong Zhou has filed 65 SEC EDGAR filings since 17 Jun 2015

Latest Filings

Recent SEC filings for Rong Zhou including 4, 144, 4/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 18 Dec 2025 17 Dec 2025 001-36509
144 Open 144 document View SEC filing for 144 28 Nov 2025
4 Open 4 document View SEC filing for 4 18 Mar 2025 15 Mar 2025 001-36509
4 Open 4 document View SEC filing for 4 12 Mar 2025 10 Mar 2025 001-36509
4 Open 4 document View SEC filing for 4 10 Mar 2025 06 Mar 2025 001-36509
4 Open 4 document View SEC filing for 4 06 Mar 2025 04 Mar 2025 001-36509
4 Open 4 document View SEC filing for 4 16 Dec 2024 12 Dec 2024 001-36509
4 Open 4 document View SEC filing for 4 13 Nov 2024 12 Nov 2024 001-36509
144 Open 144 document View SEC filing for 144 12 Nov 2024
4 Open 4 document View SEC filing for 4 17 Sep 2024 13 Sep 2024 001-36509
4 Open 4 document View SEC filing for 4 27 Aug 2024 26 Aug 2024 001-36509
144 Open 144 document View SEC filing for 144 26 Aug 2024
4 Open 4 document View SEC filing for 4 19 Mar 2024 15 Mar 2024 001-36509
4 Open 4 document View SEC filing for 4 08 Mar 2024 06 Mar 2024 001-36509
4 Open 4 document View SEC filing for 4 06 Mar 2024 04 Mar 2024 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 05 Dec 2023 01 Dec 2023 001-36509
144 Open 144 document View SEC filing for 144 17 Nov 2023
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 21 Jun 2023 20 Jun 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Jun 2023 15 Jun 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 14 Jun 2023 13 Jun 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 19 May 2023 18 May 2023 001-36509
144 Open 144 document View SEC filing for 144 17 May 2023
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Mar 2023 16 Mar 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Mar 2023 15 Mar 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 08 Mar 2023 06 Mar 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Mar 2022 16 Mar 2022 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Mar 2022 15 Mar 2022 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 01 Mar 2022 25 Feb 2022 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 09 Feb 2022 08 Feb 2022 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 11 Jan 2022 10 Jan 2022 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 12 Nov 2021 11 Nov 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 04 Aug 2021 02 Aug 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 27 Jul 2021 26 Jul 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 22 Jul 2021 20 Jul 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 10 Jun 2021 08 Jun 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 May 2021 13 May 2020 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Mar 2021 16 Mar 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Mar 2021 15 Mar 2021 001-36509
4 Open 4 document View SEC filing for 4 4 05 Jun 2020 03 Jun 2020 001-36509
4 Open 4 document View SEC filing for 4 4 18 Mar 2020 16 Mar 2020 001-36509
4 Open 4 document View SEC filing for 4 4 17 Mar 2020 15 Mar 2020 001-36509
4 Open 4 document View SEC filing for 4 4 17 Jun 2019 14 Jun 2019 001-36509
4 Open 4 document View SEC filing for 4 4 07 May 2019 06 May 2019 001-36509
4 Open 4 document View SEC filing for 4 4 28 Mar 2019 26 Mar 2019 001-36509
4 Open 4 document View SEC filing for 4 4 18 Mar 2019 15 Mar 2019 001-36509
4 Open 4 document View SEC filing for 4 4 04 Mar 2019 01 Mar 2019 001-36509
4/A Open 4/A document View SEC filing for 4/A 4/A 04 Mar 2019 05 Feb 2019 001-36509
4 Open 4 document View SEC filing for 4 4 07 Feb 2019 05 Feb 2019 001-36509
4 Open 4 document View SEC filing for 4 4 06 Dec 2018 03 Dec 2018 001-36509
4 Open 4 document View SEC filing for 4 4 13 Nov 2018 08 Nov 2018 001-36509
4 Open 4 document View SEC filing for 4 4 18 Jun 2018 15 Jun 2018 001-36509
4 Open 4 document View SEC filing for 4 4 28 Mar 2018 26 Mar 2018 001-36509
4 Open 4 document View SEC filing for 4 4 20 Mar 2018 16 Mar 2018 001-36509
4 Open 4 document View SEC filing for 4 4 16 Mar 2018 15 Mar 2018 001-36509
4 Open 4 document View SEC filing for 4 4 16 Jun 2017 15 Jun 2017 001-36509
4 Open 4 document View SEC filing for 4 4 28 Mar 2017 26 Mar 2017 001-36509
4 Open 4 document View SEC filing for 4 4 20 Mar 2017 16 Mar 2017 001-36509
4 Open 4 document View SEC filing for 4 4 07 Dec 2016 05 Dec 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2016 15 Jun 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Mar 2016 26 Mar 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Mar 2016 17 Mar 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2015 16 Dec 2015 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Jun 2015 17 Jun 2015 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2015 15 Jun 2015 001-36509
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 17 Jun 2015 09 Jun 2015 001-36509

About this filer

Rong Zhou files with the SEC under CIK 0001645326. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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