Alexander Cumbo SEC EDGAR Filings (CIK 0001685994)

SEC EDGAR filings, ownership reports, and insider transactions for Alexander Cumbo.

Business address
215 First Street, Suite 415, Cambridge, MA, 02142
Top holdings (ownership)
SLDB
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Alexander Cumbo has filed 43 SEC EDGAR filings since 30 Sep 2016

Latest Filings

Recent SEC filings for Alexander Cumbo including 4, 144, 3 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 4 04 Dec 2025 02 Dec 2025 001-38360
144 Open 144 document View SEC filing for 144 03 Dec 2025
4 Open 4 document View SEC filing for 4 4 18 Aug 2025 14 Aug 2025 001-38360
4 Open 4 document View SEC filing for 4 4 28 Jul 2025 25 Jul 2025 001-40489
4 Open 4 document View SEC filing for 4 18 Jul 2025 16 Jul 2025 001-39979
3 Open 3 document View SEC filing for 3 18 Jul 2025 16 Jul 2025 001-39979
4 Open 4 document View SEC filing for 4 4 06 Jun 2025 05 Jun 2025 001-40489
4 Open 4 document View SEC filing for 4 4 05 Jun 2025 04 Jun 2025 001-40708
4 Open 4 document View SEC filing for 4 4 01 Apr 2025 28 Mar 2025 001-40708
3 Open 3 document View SEC filing for 3 3 01 Apr 2025 28 Mar 2025 001-40708
4 Open 4 document View SEC filing for 4 4 18 Feb 2025 13 Feb 2025 001-38360
144 Open 144 document View SEC filing for 144 14 Feb 2025
4 Open 4 document View SEC filing for 4 4 11 Feb 2025 31 Jan 2025 001-38360
144/A Open 144/A document View SEC filing for 144/A 05 Dec 2024
4 Open 4 document View SEC filing for 4 4 04 Dec 2024 02 Dec 2024 001-38360
144 Open 144 document View SEC filing for 144 03 Dec 2024
4 Open 4 document View SEC filing for 4 4 28 Jun 2024 26 Jun 2024 001-40489
4 Open 4 document View SEC filing for 4 4 16 Feb 2024 13 Feb 2024 001-38360
4 Open 4 document View SEC filing for 4 4 05 Dec 2023 02 Dec 2023 001-38360
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Jun 2023 15 Jun 2023 001-40489
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Dec 2022 02 Dec 2022 001-38360
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 05 Dec 2022 02 Dec 2022 001-38360
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Jun 2022 09 Jun 2022 001-40489
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 13 Jun 2022 09 Jun 2022 001-40489
4 Open 4 document View SEC filing for 4 4 03 Apr 2020 02 Apr 2020 001-37926
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Feb 2020 28 Feb 2020 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2019 13 Dec 2019 001-14895
4 Open 4 document View SEC filing for 4 4 13 Jun 2019 11 Jun 2019 001-37926
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Mar 2019 28 Mar 2019 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Mar 2019 28 Feb 2019 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2019 01 Feb 2019 001-14895
4 Open 4 document View SEC filing for 4 4 15 Nov 2018 14 Nov 2018 001-37926
3 Open 3 document View SEC filing for 3 3 15 Nov 2018 14 Nov 2018 001-37926
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Aug 2018 08 Aug 2018 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Jul 2018 09 Jul 2018 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 May 2018 22 May 2018 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Mar 2018 15 Mar 2018 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Mar 2018 05 Mar 2018 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Aug 2017 03 Aug 2017 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2017 20 Jul 2017 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jun 2017 19 May 2017 001-14895
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Mar 2017 10 Mar 2017 001-14895
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 30 Sep 2016 20 Sep 2016 001-14895

About this filer

Alexander Cumbo files with the SEC under CIK 0001685994. 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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