Michael Mason

Entity
Individual
Business address
300 3 Rd Street, 02142 Cambridge, MA
Signature Ownership
/s/Nancy Smith as Attorney-in-Fact for Michael Mason
All SEC filings
View on sec.gov
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Michael Mason has filed 57 SEC EDGAR filings since 3/3/2011

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 4 Sep 5, 2024 Sep 4, 2024 001-36167
4 Open Document Open Filing 4 Jun 6, 2024 Jun 4, 2024 001-36167
4 Open Document Open Filing 4 Mar 4, 2024 Feb 29, 2024 001-36167
4 Open Document Open Filing 4 Feb 29, 2024 Feb 27, 2024 001-36167
4 Open Document Open Filing 4 Feb 8, 2024 Feb 6, 2024 001-36167
4 Open Document Open Filing 4 Jan 25, 2024 Jan 24, 2024 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Sep 5, 2023 Sep 1, 2023 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Jun 5, 2023 Jun 2, 2023 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Mar 2, 2023 Feb 28, 2023 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Mar 1, 2023 Feb 27, 2023 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Feb 8, 2023 Feb 6, 2023 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Sep 1, 2022 Aug 31, 2022 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Jun 6, 2022 Jun 3, 2022 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Mar 2, 2022 Feb 28, 2022 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Feb 9, 2022 Feb 7, 2022 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Jun 1, 2021 Jun 1, 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Mar 1, 2021 Feb 25, 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Feb 17, 2021 Feb 11, 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Feb 9, 2021 Feb 5, 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Feb 7, 2020 Feb 5, 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION Feb 25, 2019 Feb 25, 2019 001-36167
3 Open Document Open Filing FORM 3 SUBMISSION Feb 25, 2019 Feb 25, 2019 001-36167
4 Open Document Open Filing PRIMARY DOCUMENT Sep 28, 2018 Sep 27, 2018 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Aug 23, 2018 Aug 21, 2018 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Aug 14, 2018 Aug 10, 2018 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Mar 5, 2018 Mar 1, 2018 001-36407
5 Open Document Open Filing PRIMARY DOCUMENT Feb 9, 2018 Dec 31, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Jan 8, 2018 Jan 4, 2018 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Jan 3, 2018 Dec 30, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Dec 21, 2017 Dec 20, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Nov 8, 2017 Nov 6, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Sep 22, 2017 Sep 20, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Jul 11, 2017 Jul 7, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT May 17, 2017 May 16, 2017 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Jan 3, 2017 Dec 30, 2016 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Dec 22, 2016 Dec 20, 2016 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Feb 3, 2016 Feb 1, 2016 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Dec 22, 2015 Dec 18, 2015 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Dec 9, 2015 Dec 7, 2015 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Jun 3, 2015 Jun 1, 2015 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT May 5, 2015 May 1, 2015 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Dec 16, 2014 Dec 12, 2014 001-36407
4 Open Document Open Filing PRIMARY DOCUMENT Feb 4, 2014 Feb 3, 2014 000-50743
4 Open Document Open Filing PRIMARY DOCUMENT Jan 27, 2014 Jan 23, 2014 000-50743