Flagship Ventures Fund IV General Partner LLC

Overview

• HeadquartersDE¹

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Corporate structure

Flagship Ventures Fund IV General Partner LLC sits at the top of its group. 3 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (2 companies). Each entity in the chart links to its source.

Filings

23 filings to the SEC since October 2021: 23 other. The latest 20:

1. Aug 31, 2026N-PX EDGAR
2. Aug 14, 202613F-NT EDGAR
3. May 15, 202613F-NT EDGAR
4. Feb 17, 202613F-NT EDGAR
5. Nov 14, 202513F-NT EDGAR
6. Sep 2, 2025N-PX EDGAR
7. Aug 14, 202513F-NT EDGAR
8. May 15, 202513F-NT EDGAR
9. Feb 14, 202513F-NT EDGAR
10. Nov 14, 202413F-NT EDGAR
11. Sep 3, 2024N-PX EDGAR
12. Aug 14, 202413F-NT EDGAR
13. May 15, 202413F-NT EDGAR
14. Feb 14, 202413F-NT EDGAR
15. Nov 14, 202313F-NT EDGAR
16. Aug 14, 202313F-NT EDGAR
17. May 15, 202313F-NT EDGAR
18. Feb 14, 202313F-NT EDGAR
19. Nov 14, 202213F-NT EDGAR
20. Aug 15, 202213F-NT EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Stakes it holds

Flagship Ventures Fund IV General Partner LLC has told the SEC it owns more than 5% of 2 companies, latest first (Schedules 13D and 13G).

• ModernaSC 13G/A Feb 14, 2022²
• Rubius Therapeutics (United States)SC 13G/A Feb 14, 2022³