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 |
| 2025-02-14 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 |
| 2024-02-01 10:19 am Purchase | 2024-01-22 | 13G | Compass Therapeutics, Inc. CMPX | JANUS HENDERSON GROUP PLC JHG | 7,647,740 6.000% | 7,647,740 (New Position) | Filing History |
| 2023-11-27 4:10 pm Purchase | 2023-11-16 | 13G | Compass Therapeutics, Inc. CMPX | ADAGE CAPITAL PARTNERS GP L.L.C. | 7,211,800 5.660% | 7,211,800 (New Position) | Filing History |
| 2023-02-14 2:58 pm Purchase | 2022-12-31 | 13G | Compass Therapeutics, Inc. CMPX | Rock Springs Capital Management LP | 5,333,188 4.220% | 5,100 (+0.10%) | Filing History |
| 2023-02-13 5:20 pm Purchase | 2022-12-31 | 13G | Compass Therapeutics, Inc. CMPX | Foresite Capital Fund V L.P. | 5,954,250 4.700% | 454,250 (+8.26%) | Filing History |
| 2023-02-09 08:14 am Sale | 2023-02-09 | 13G | Compass Therapeutics, Inc. CMPX | FMR LLC | 6,354,814 5.035% | -517,600 (-7.53%) | Filing History |
| 2022-11-10 7:07 pm Purchase | 2022-11-04 | 13D | Compass Therapeutics, Inc. CMPX | Commander Aggregator LP | 7,788,150 6.170% | 7,788,150 (New Position) | Filing History |
| 2022-11-10 4:25 pm Purchase | 2022-11-08 | 13D | Compass Therapeutics, Inc. CMPX | ORBIMED ADVISORS LLC | 18,791,422 14.900% | 719,875 (+3.98%) | Filing History |
| 2022-02-14 6:22 pm Purchase | 2021-12-31 | 13G | Compass Therapeutics, Inc. CMPX | Rock Springs Capital Management LP | 5,328,088 5.440% | 4,071 (+0.08%) | Filing History |
| 2022-02-09 09:11 am Purchase | 2022-02-08 | 13G | Compass Therapeutics, Inc. CMPX | FMR LLC | 6,872,414 7.010% | 2,750,000 (+66.71%) | Filing History |
| 2021-12-30 4:40 pm Purchase | 2021-12-20 | 13G | Compass Therapeutics, Inc. CMPX | Rock Springs Capital Management LP | 5,324,017 5.430% | 5,324,017 (New Position) | Filing History |
| 2021-12-17 3:14 pm Purchase | 2021-12-17 | 13G | Compass Therapeutics, Inc. CMPX | ANDERSON ERRIK | 3,546,730 3.600% | 3,546,730 (New Position) | Filing History |