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
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-08-21 09:07 am Purchase | 2025-08-13 | 13G | Compass Therapeutics, Inc. CMPX | Suvretta Capital Management, LLC | 14,101,159 8.200% | 6,951,666 (+97.23%) | Filing History |
| 2025-08-18 6:35 pm Unchanged | 2025-08-14 | 13D | Compass Therapeutics, Inc. CMPX | Commander Aggregator, LP | 7,788,150 4.500% | 0 (Unchanged) | Filing History |
| 2025-08-15 5:28 pm Unchanged | 2025-08-13 | 13D | Compass Therapeutics, Inc. CMPX | ORBIMED ADVISORS LLC | 15,219,994 8.900% | 0 (Unchanged) | Filing History |
| 2025-08-14 4:15 pm Purchase | 2025-06-30 | 13G | Compass Therapeutics, Inc. CMPX | TANG CAPITAL MANAGEMENT, LLC | 13,496,208 9.800% | 2,443,576 (+22.11%) | Filing History |
| 2025-08-14 10:49 am Sale | 2025-06-30 | 13G | COMPASS Pathways plc CMPS | RTW INVESTMENTS LP | 0 0.000% | -9,474,397 (Position Closed) | Filing History |
| 2025-08-14 08:05 am Purchase | 2025-06-30 | 13G | COMPASS Pathways plc CMPS | RTW INVESTMENTS LP | 9,474,397 9.900% | 9,474,397 (New Position) | Filing History |
| 2025-08-13 8:21 pm Purchase | 2025-06-30 | 13G | Compass Therapeutics, Inc. CMPX | Suvretta Capital Management, LLC | 7,149,493 5.200% | 7,149,493 (New Position) | Filing History |
| 2025-08-12 4:29 pm Sale | 2025-06-30 | 13G | Compass Therapeutics, Inc. CMPX | MPM BIOIMPACT LLC | 5,622,505 4.100% | -2,945,391 (-34.38%) | Filing History |
| 2025-07-16 7:02 pm Sale | 2025-06-30 | 13G | Compass Therapeutics, Inc. CMPX | BlackRock Inc. BLK | 6,398,988 4.600% | -488,627 (-7.09%) | Filing History |
| 2025-05-15 4:15 pm Purchase | 2025-03-31 | 13G | Compass Therapeutics, Inc. CMPX | TANG CAPITAL MANAGEMENT, LLC | 11,052,632 8.000% | 3,652,632 (+49.36%) | Filing History |
| 2025-04-11 7:21 pm Sale | 2024-04-09 | 13D | Compass Therapeutics, Inc. CMPX | ORBIMED ADVISORS LLC | 15,219,994 11.000% | -3,571,428 (-19.01%) | Filing History |
| 2025-02-14 4:11 pm Purchase | 2024-12-31 | 13G | Compass Therapeutics, Inc. CMPX | MPM BIOIMPACT LLC | 8,567,896 6.200% | 8,567,896 (New Position) | Filing History |
| 2025-02-12 09:39 am Sale | 2024-12-31 | 13G | Compass Therapeutics, Inc. CMPX | ADAGE CAPITAL PARTNERS GP L.L.C. | 5,994,810 4.360% | -3,885,190 (-39.32%) | Filing History |
| 2025-02-04 3:45 pm Purchase | 2024-12-31 | 13G | Compass Therapeutics, Inc. CMPX | BlackRock Inc. BLK | 6,887,615 5.000% | 6,887,615 (New Position) | Filing History |
| 2025-01-16 5:17 pm Purchase | 2025-01-08 | 13G | Compass Therapeutics, Inc. CMPX | TANG CAPITAL MANAGEMENT, LLC | 7,400,000 5.400% | 7,400,000 (New Position) | Filing History |
| 2024-11-14 10:00 am Sale | 2024-09-30 | 13G | Compass Therapeutics, Inc. CMPX | JANUS HENDERSON GROUP PLC JHG | 1,843,286 1.300% | -5,804,454 (-75.90%) | Filing History |
| 2024-08-02 4:15 pm Purchase | 2024-07-23 | 13G | Compass Therapeutics, Inc. CMPX | Blackstone Holdings II L.P. | 9,495,151 6.900% | 9,495,151 (New Position) | Filing History |
| 2024-03-22 4:59 pm Unchanged | 2024-03-21 | 13D | Compass Therapeutics, Inc. CMPX | ORBIMED ADVISORS LLC | 18,791,422 13.700% | 0 (Unchanged) | Filing History |
| 2024-02-09 08:50 am Sale | 2024-02-08 | 13G | Compass Therapeutics, Inc. CMPX | FMR LLC | 4,551,506 3.570% | -1,803,308 (-28.38%) | Filing History |
| 2024-02-07 07:05 am Purchase | 2023-12-31 | 13G | Compass Therapeutics, Inc. CMPX | ADAGE CAPITAL PARTNERS GP L.L.C. | 9,880,000 7.750% | 2,668,200 (+37.00%) | Filing History |