Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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- Peter Lynch
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| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-06-04 4:00 pm Purchase | 2025-05-28 | 13G | iTeos Therapeutics, Inc. ITOS | Ridgeback Capital Investments L.P. | 1,442,959 3.800% | 1,442,959 (New Position) | Filing History |
| 2025-05-20 4:01 pm Unchanged | 2025-05-16 | 13G | AFFIMED N V NE AFMDQ | Ridgeback Capital Investments L.P. | 0 0.000% | 0 (Unchanged) | Filing History |
| 2025-02-14 4:01 pm Sale | 2024-12-31 | 13G | Pyxis Oncology, Inc. PYXS | Ridgeback Capital Investments L.P. | 359,231 0.600% | -3,985,997 (-91.73%) | Filing History |
| 2024-07-29 4:12 pm Purchase | 2024-07-17 | 13G | LENZ Therapeutics, Inc. LENZ | Ridgeback Capital Investments L.P. | 1,951,875 7.200% | 1,951,875 (New Position) | Filing History |
| 2024-02-14 4:08 pm Sale | 2023-12-31 | 13G | Bicycle Therapeutics plc BCYC | Ridgeback Capital Investments L.P. | 844,235 2.200% | -1,420,566 (-62.72%) | Filing History |
| 2024-02-14 4:07 pm Purchase | 2023-12-31 | 13G | Affimed N.V. AFMD | Ridgeback Capital Investments L.P. | 1,485,898 9.900% | 197,637 (+15.34%) | Filing History |
| 2024-01-26 4:36 pm Purchase | 2024-01-26 | 13G | Pyxis Oncology, Inc. PYXS | Ridgeback Capital Investments L.P. | 4,345,228 9.800% | 4,345,228 (New Position) | Filing History |
| 2023-02-14 4:06 pm Unchanged | 2022-12-31 | 13G | Bicycle Therapeutics plc BCYC | Ridgeback Capital Investments L.P. | 2,264,801 7.600% | 0 (Unchanged) | Filing History |
| 2023-02-14 4:06 pm Unchanged | 2022-12-31 | 13G | Affimed N.V. AFMD | Ridgeback Capital Investments L.P. | 1,288,261 8.800% | 0 (Unchanged) | Filing History |
| 2023-02-14 4:06 pm Unchanged | 2022-12-31 | 13G | F-star Therapeutics, Inc. FSTX | Ridgeback Capital Investments L.P. | 52,509 0.200% | 0 (Unchanged) | Filing History |
| 2023-02-14 4:02 pm Sale | 2022-12-31 | 13G | F-star Therapeutics, Inc. FSTX | Ridgeback Capital Investments L.P. | 52,509 0.200% | -1,781,851 (-97.14%) | Filing History |
| 2023-02-14 4:02 pm Purchase | 2022-12-31 | 13G | Affimed N.V. AFMD | Ridgeback Capital Investments L.P. | 1,288,261 8.800% | 516,050 (+66.83%) | Filing History |
| 2023-02-14 4:00 pm Purchase | 2022-12-31 | 13G | Bicycle Therapeutics plc BCYC | Ridgeback Capital Investments L.P. | 2,264,801 7.600% | 100,000 (+4.62%) | Filing History |
| 2022-02-14 4:15 pm Purchase | 2021-12-31 | 13G | F-star Therapeutics, Inc. FSTX | Ridgeback Capital Investments L.P. | 1,834,360 8.900% | 1,340,000 (+271.06%) | Filing History |
| 2022-02-14 4:14 pm Sale | 2021-12-31 | 13G | Cogent Biosciences, Inc. COGT | Ridgeback Capital Investments L.P. | 0 0.000% | -1,252,250 (Position Closed) | Filing History |
| 2022-02-14 4:13 pm Purchase | 2021-12-31 | 13G | Bicycle Therapeutics plc BCYC | Ridgeback Capital Investments L.P. | 2,164,801 7.400% | 302,968 (+16.27%) | Filing History |
| 2022-02-14 4:12 pm Purchase | 2021-12-31 | 13G | Affimed N.V. AFMD | Ridgeback Capital Investments L.P. | 772,211 6.500% | 127,211 (+19.72%) | Filing History |
| 2021-04-14 11:25 am Purchase | 2021-04-09 | 13G | Affimed N.V. AFMD | Ridgeback Capital Investments L.P. | 645,000 5.500% | 645,000 (New Position) | Filing History |
| 2021-04-09 4:54 pm Purchase | 2021-03-30 | 13G | F-star Therapeutics, Inc. FSTX | Ridgeback Capital Investments L.P. | 494,360 5.400% | 86,793 (+21.30%) | Filing History |
| 2021-02-16 4:23 pm Sale | 2020-12-31 | 13G | Verastem, Inc. VSTM | Ridgeback Capital Investments L.P. | 0 0.000% | -839,020 (Position Closed) | Filing History |