Private company

CSS LLC/IL

American company, incorporated in Illinois. Summary from the record

Last updated Oct 21, 2026.

Overview

  • HeadquartersIL1

Corporate structure

CSS LLC/IL sits at the top of its group. 11 entities, 3 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 (10 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 14, 202613F-HR EDGAR
  2. Aug 3, 2026N-PX EDGAR
  3. May 15, 202613F-HR EDGAR
  4. Feb 17, 202613F-HR EDGAR
  5. Nov 13, 202513F-HR EDGAR
  6. Aug 14, 202513F-HR EDGAR
  7. Aug 4, 2025N-PX EDGAR
  8. May 15, 202513F-HR EDGAR
  9. Mar 27, 2025N-PX EDGAR
  10. Feb 18, 202513F-HR EDGAR
  11. Nov 14, 202413F-HR EDGAR
  12. Aug 14, 202413F-HR EDGAR
  13. May 15, 202413F-HR EDGAR
  14. Feb 14, 202413F-HR EDGAR
  15. Nov 14, 202313F-HR EDGAR
  16. Aug 14, 202313F-HR EDGAR
  17. May 15, 202313F-HR EDGAR
  18. Feb 14, 202313F-HR EDGAR
  19. Nov 14, 202213F-HR EDGAR
  20. Aug 15, 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

CSS LLC/IL has told the SEC it owns more than 5% of 10 companies, latest first (Schedules 13D and 13G).