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Private company

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

American company, incorporated in Delaware. Summary from the record

Last updated Oct 21, 2026.

Overview

  • HeadquartersBoston, Massachusetts1
  • Incorporated inDE2
  • Business address111 Huntington Avenue, 24Th Floor, Boston, Ma 021992

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Corporate structure

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ sits at the top of its group. 104 entities, 12 countries 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 (103 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 26, 2026N-PX EDGAR
  2. Aug 3, 202613F-HR EDGAR
  3. May 14, 202613F-HR EDGAR
  4. Jan 22, 202613F-HR EDGAR
  5. Oct 29, 202513F-HR EDGAR
  6. Aug 29, 2025N-PX EDGAR
  7. Aug 8, 202513F-HR EDGAR
  8. May 2, 202513F-HR EDGAR
  9. Feb 12, 202513F-HR EDGAR
  10. Nov 12, 202413F-HR EDGAR
  11. Aug 30, 2024N-PX EDGAR
  12. Aug 9, 202413F-HR EDGAR
  13. May 14, 202413F-HR EDGAR
  14. Feb 8, 202413F-HR EDGAR
  15. Nov 8, 202313F-HR EDGAR
  16. Aug 9, 202313F-HR EDGAR
  17. May 10, 202313F-HR EDGAR
  18. Feb 13, 202313F-HR EDGAR
  19. Nov 9, 202213F-HR EDGAR
  20. Aug 9, 202213F-HR EDGAR

The 23 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

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

Stakes it holds

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ has told the SEC it owns more than 5% of 103 companies, latest first (Schedules 13D and 13G).

All 103 companies

Sources

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