John Tseng-Chung Lee

Business address
2 Tech Drive, Andover, MA, 01810
Top holdings (ownership)
MKSI and CGNX
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John Tseng-Chung Lee has filed 105 SEC EDGAR filings since 10 Oct 2007

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT 04 Nov 2025 31 Oct 2025 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 12 May 2025 09 May 2025 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 24 Feb 2025 20 Feb 2025 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 20 Feb 2025 18 Feb 2025 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 19 Feb 2025 18 Feb 2025 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 11 Feb 2025 10 Feb 2025 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 10 Dec 2024 06 Dec 2024 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 10 May 2024 09 May 2024 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 22 Feb 2024 20 Feb 2024 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2024 15 Feb 2024 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 06 Feb 2024 05 Feb 2024 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 05 Dec 2023 01 Dec 2023 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 11 May 2023 09 May 2023 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 23 Feb 2023 21 Feb 2023 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2023 15 Feb 2023 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 09 Feb 2023 08 Feb 2023 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 10 May 2022 09 May 2022 001-34218
3 Open Document Open Filing PRIMARY DOCUMENT 10 May 2022 04 May 2022 001-34218
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2022 29 Apr 2022 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2022 15 Feb 2022 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 24 Jan 2022 21 Jan 2022 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 17 Feb 2021 16 Feb 2021 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 26 Jan 2021 25 Jan 2021 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 19 Feb 2020 18 Feb 2020 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 28 Jan 2020 27 Jan 2020 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 19 Feb 2019 15 Feb 2019 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 30 Jan 2019 28 Jan 2019 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 11 May 2018 09 May 2018 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 21 Feb 2018 20 Feb 2018 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2018 15 Feb 2018 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2018 12 Feb 2018 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 14 Nov 2017 13 Nov 2017 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 12 May 2017 11 May 2017 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 23 Feb 2017 22 Feb 2017 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2017 15 Feb 2017 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2017 10 Feb 2017 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 11 Aug 2016 10 Aug 2016 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 06 Jul 2016 05 Jul 2016 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 29 Feb 2016 25 Feb 2016 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 18 Feb 2016 16 Feb 2016 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 28 Jan 2016 26 Jan 2016 000-23621
4/A Open Document Open Filing PRIMARY DOCUMENT 28 Jan 2016 30 Jan 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2015 29 May 2015 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 15 May 2015 14 May 2015 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 26 Feb 2015 25 Feb 2015 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 25 Feb 2015 23 Feb 2015 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 19 Feb 2015 17 Feb 2015 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 11 Feb 2015 10 Feb 2015 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2014 28 Nov 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 16 Jun 2014 13 Jun 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2014 30 May 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 03 Mar 2014 28 Feb 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 27 Feb 2014 24 Feb 2014 000-23621
4/A Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2014 10 Feb 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2014 10 Feb 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 04 Dec 2013 29 Nov 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2013 31 May 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 15 Mar 2013 14 Mar 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 05 Mar 2013 04 Mar 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 04 Mar 2013 28 Feb 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 26 Feb 2013 25 Feb 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2013 30 Jan 2013 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 05 Dec 2012 30 Nov 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 07 Aug 2012 06 Aug 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 07 Jun 2012 31 May 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 19 Mar 2012 16 Mar 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 12 Mar 2012 09 Mar 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 06 Mar 2012 05 Mar 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 01 Mar 2012 28 Feb 2012 000-23621
4/A Open Document Open Filing PRIMARY DOCUMENT 01 Mar 2012 17 Feb 2011 000-23621
4/A Open Document Open Filing PRIMARY DOCUMENT 27 Feb 2012 27 Feb 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 27 Feb 2012 27 Feb 2012 000-23621
4 Open Document Open Filing PRIMARY DOCUMENT 24 Feb 2012 23 Feb 2012 000-23621