Private company

PEAK6 Capital Management LLC

Last updated Oct 21, 2026.

Overview

Corporate structure

PEAK6 Capital Management LLC sits at the top of its group. 10 entities, 2 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 (9 companies). Each entity in the chart links to its source.

Filings

26 filings to the SEC since October 2021: 26 other. The latest 20:

  1. Aug 13, 202613F-NT EDGAR
  2. May 14, 202613F-NT EDGAR
  3. Mar 31, 202613F-NT/A EDGAR
  4. Mar 26, 202613F-NT/A EDGAR
  5. Mar 12, 202613F-NT/A EDGAR
  6. Feb 13, 202613F-NT EDGAR
  7. Nov 14, 202513F-NT EDGAR
  8. Nov 14, 202513F-NT/A EDGAR
  9. Aug 14, 202513F-NT EDGAR
  10. May 15, 202513F-NT EDGAR
  11. Feb 13, 202513F-NT EDGAR
  12. Nov 14, 202413F-NT EDGAR
  13. Aug 14, 202413F-NT EDGAR
  14. May 14, 202413F-NT EDGAR
  15. Feb 13, 202413F-NT EDGAR
  16. Nov 13, 202313F-NT EDGAR
  17. Aug 31, 202313F-NT/A EDGAR
  18. Aug 11, 202313F-NT EDGAR
  19. May 12, 202313F-NT EDGAR
  20. May 10, 202313F-NT/A EDGAR

The 26 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

PEAK6 Capital Management LLC has told the SEC it owns more than 5% of 9 companies, latest first (Schedules 13D and 13G).