Ridgeback Capital Investments L.P.

Overview

• HeadquartersE9¹

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Corporate structure

Ridgeback Capital Investments L.P. sits at the top of its group. 10 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 (9 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-HR EDGAR
3. May 15, 202613F-HR EDGAR
4. Feb 17, 202613F-HR EDGAR
5. Nov 14, 202513F-HR EDGAR
6. Aug 29, 2025N-PX EDGAR
7. Aug 14, 202513F-HR EDGAR
8. May 15, 202513F-HR EDGAR
9. Feb 14, 202513F-HR EDGAR
10. Nov 14, 202413F-HR EDGAR
11. Aug 30, 2024N-PX 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

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

Stakes it holds

Ridgeback Capital Investments L.P. has told the SEC it owns more than 5% of 9 companies, latest first (Schedules 13D and 13G).

• Replimune Group, Inc.SCHEDULE 13G/A May 21, 2026 to Aug 14, 2026²
• LENZ Therapeutics, Inc.SCHEDULE 13G/A Jul 29, 2024 to Feb 17, 2026³
• Semler Scientific, Inc.SCHEDULE 13G/A Jul 16, 2025 to Nov 14, 2025⁴
• iTeos Therapeutics, Inc.SCHEDULE 13G/A Jun 4, 2025 to Nov 14, 2025⁵
• Affimed N.V.SCHEDULE 13G/A Feb 14, 2022 to May 20, 2025⁶
• Pyxis Oncology, Inc.SCHEDULE 13G/A Jan 26, 2024 to Feb 14, 2025⁷
• Bicycle Therapeutics (United Kingdom)SC 13G/A Feb 14, 2022 to Feb 14, 2024⁸
• F-star Therapeutics, Inc.SC 13G/A Feb 14, 2022 to Feb 14, 2023⁹
• Cogent Biosciences, Inc.SC 13G/A Feb 14, 2022¹⁰