Haiping Dun

Business address
C/O Acm Research, Inc., 42307 Osgood Road, Suite I, Fremont, CA, 94539
Top holdings (ownership)
ACMR
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Haiping Dun has filed 60 SEC EDGAR filings since 02 Nov 2017

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 14 Nov 2025 12 Nov 2025 001-38273
4 Open Document Open Filing FORM 4 14 Aug 2025 12 Aug 2025 001-38273
4 Open Document Open Filing FORM 4 18 Mar 2025 14 Mar 2025 001-38273
144 Open Document Open Filing 14 Mar 2025
4 Open Document Open Filing FORM 4 12 Mar 2025 10 Mar 2025 001-38273
144 Open Document Open Filing 10 Mar 2025
4 Open Document Open Filing FORM 4 05 Mar 2025 03 Mar 2025 001-38273
4 Open Document Open Filing FORM 4 03 Dec 2024 29 Nov 2024 001-38273
144 Open Document Open Filing 29 Nov 2024
4 Open Document Open Filing FORM 4 26 Nov 2024 22 Nov 2024 001-38273
144 Open Document Open Filing 22 Nov 2024
4 Open Document Open Filing FORM 4 18 Nov 2024 14 Nov 2024 001-38273
4 Open Document Open Filing FORM 4 03 Sep 2024 29 Aug 2024 001-38273
144 Open Document Open Filing 29 Aug 2024
4 Open Document Open Filing FORM 4 26 Aug 2024 22 Aug 2024 001-38273
144 Open Document Open Filing 22 Aug 2024
4 Open Document Open Filing FORM 4 20 Aug 2024 12 Aug 2024 001-38273
4 Open Document Open Filing FORM 4 16 Aug 2024 14 Aug 2024 001-38273
4 Open Document Open Filing FORM 4 01 Jul 2024 27 Jun 2024 001-38273
4 Open Document Open Filing FORM 4 31 May 2024 29 May 2024 001-38273
144 Open Document Open Filing 29 May 2024
4 Open Document Open Filing FORM 4 24 May 2024 22 May 2024 001-38273
144 Open Document Open Filing 22 May 2024
4 Open Document Open Filing FORM 4 16 May 2024 14 May 2024 001-38273
4 Open Document Open Filing FORM 4 15 Mar 2024 14 Mar 2024 001-38273
144 Open Document Open Filing 14 Mar 2024
4 Open Document Open Filing FORM 4 12 Mar 2024 08 Mar 2024 001-38273
144 Open Document Open Filing 08 Mar 2024
4 Open Document Open Filing FORM 4 05 Mar 2024 01 Mar 2024 001-38273
4 Open Document Open Filing 01 Dec 2023 29 Nov 2023 001-38273
144 Open Document Open Filing 29 Nov 2023
4 Open Document Open Filing 27 Nov 2023 22 Nov 2023 001-38273
144 Open Document Open Filing 22 Nov 2023
4 Open Document Open Filing 16 Nov 2023 14 Nov 2023 001-38273
4 Open Document Open Filing 24 Aug 2023 22 Aug 2023 001-38273
144 Open Document Open Filing 22 Aug 2023
4/A Open Document Open Filing 21 Aug 2023 10 Aug 2023 001-38273
4 Open Document Open Filing 14 Aug 2023 10 Aug 2023 001-38273
4 Open Document Open Filing 05 Jun 2023 01 Jun 2023 001-38273
144 Open Document Open Filing 01 Jun 2023
4 Open Document Open Filing 24 May 2023 22 May 2023 001-38273
4 Open Document Open Filing 20 Mar 2023 16 Mar 2023 001-38273
4 Open Document Open Filing 13 Mar 2023 09 Mar 2023 001-38273
4 Open Document Open Filing 02 Dec 2022 30 Nov 2022 001-38273
4 Open Document Open Filing 25 Nov 2022 22 Nov 2022 001-38273
4 Open Document Open Filing 15 Nov 2022 14 Nov 2022 001-38273
4 Open Document Open Filing FORM 4 24 Aug 2022 22 Aug 2022 001-38273
4 Open Document Open Filing FORM 4 17 Aug 2022 15 Aug 2022 001-38273
4 Open Document Open Filing FORM 4 10 Aug 2022 08 Aug 2022 001-38273
4 Open Document Open Filing FORM 4 05 Jul 2022 30 Jun 2022 001-38273
4 Open Document Open Filing FORM 4 31 May 2022 27 May 2022 001-38273
4 Open Document Open Filing FORM 4 20 May 2022 18 May 2022 001-38273
4 Open Document Open Filing FORM 4 11 Mar 2022 09 Mar 2022 001-38273
4 Open Document Open Filing FORM 4 04 Mar 2022 02 Mar 2022 001-38273
4/A Open Document Open Filing FORM 4/A 05 Mar 2021 22 Feb 2021 001-38273
4 Open Document Open Filing FORM 4 03 Mar 2021 22 Feb 2021 001-38273
4 Open Document Open Filing FORM 4 24 Mar 2020 20 Mar 2020 001-38273
4 Open Document Open Filing PRIMARY DOCUMENT 27 Aug 2019 23 Aug 2019 001-38273
4 Open Document Open Filing PRIMARY DOCUMENT 25 Apr 2019 23 Apr 2019 001-38273
3 Open Document Open Filing FORM 3 SUBMISSION 02 Nov 2017 02 Nov 2017 001-38273