MICHAEL I. SCHAFFER

Business address
C/O Paychemedics Corp, 1280 Massachusetts Ave Ste 200, Cambridge, MA, 02138
Top holdings (ownership)
PMD
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MICHAEL I. SCHAFFER has filed 59 SEC EDGAR filings since 21 May 2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 24 May 2023 22 May 2023 001-13738
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 16 May 2023 15 May 2023 001-13738
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 20 Dec 2022 16 Dec 2022 001-13738
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 15 Nov 2022 11 Nov 2022 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 24 May 2022 20 May 2022 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 17 May 2022 13 May 2022 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 16 Nov 2021 12 Nov 2021 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 14 May 2021 13 May 2021 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 20 Nov 2020 18 Nov 2020 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 13 Nov 2020 11 Nov 2020 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 14 Jun 2019 12 Jun 2019 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 07 May 2019 03 May 2019 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2019 30 Apr 2019 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 10 Sep 2018 06 Sep 2018 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 10 May 2018 08 May 2018 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 07 May 2018 03 May 2018 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2018 30 Apr 2018 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 06 Sep 2017 01 Sep 2017 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 25 May 2017 23 May 2017 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 15 May 2017 10 May 2017 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 09 May 2017 08 May 2017 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2017 04 May 2017 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2017 01 May 2017 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 24 May 2016 23 May 2016 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 16 May 2016 12 May 2016 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 11 May 2016 08 May 2016 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2016 02 May 2016 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2016 16 Feb 2016 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 17 Jun 2015 15 Jun 2015 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 27 May 2015 22 May 2015 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 11 May 2015 08 May 2015 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 01 May 2015 29 Apr 2015 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 12 May 2014 08 May 2014 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 07 May 2014 05 May 2014 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 12 Mar 2014 10 Mar 2014 001-13738
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2014 11 Feb 2014 001-13738