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 are not 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 | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | Filing |
| 2022-04-14 4:56 pm Purchase | 13D | MERSANA THERAPEUTICS INC MRSN | Bain Capital Life Sciences Fund II L.P. | 4,041,733 4.8% | 747,310 (+22.68%) | View |
| 2022-02-17 4:12 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | MILLENNIUM MANAGEMENT LLC | 3,730,711 5.2% | 3,730,711 (New Position) | View |
| 2022-02-11 2:34 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | STATE STREET CORP STT | 4,220,557 5.87% | 4,220,557 (New Position) | View |
| 2022-02-10 08:27 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | VANGUARD GROUP INC | 3,607,431 5.02% | 3,607,431 (New Position) | View |
| 2022-02-08 5:02 pm Unchanged | 13D | MERSANA THERAPEUTICS INC MRSN | Bain Capital Life Sciences Fund II L.P. | 3,294,423 4.4% | 0 (Unchanged) | View |
| 2022-02-04 09:21 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | WELLINGTON MANAGEMENT GROUP LLP | 5,017,078 6.98% | 364,012 (+7.82%) | View |
| 2022-01-27 5:13 pm Unchanged | 13G | MERSANA THERAPEUTICS INC MRSN | BlackRock Inc. BLK | 7,479,229 10.4% | 0 (Unchanged) | View |
| 2022-01-26 09:17 am Sale | 13G | MERSANA THERAPEUTICS INC MRSN | BlackRock Inc. BLK | 7,479,229 10.4% | -508,583 (-6.37%) | View |
| 2022-01-03 5:10 pm Unchanged | 13D | MERSANA THERAPEUTICS INC MRSN | Bain Capital Life Sciences Fund II L.P. | 3,294,423 4.5% | 0 (Unchanged) | View |
| 2021-09-15 6:23 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | BB BIOTECH AG | 4,135,000 5.8% | 4,135,000 (New Position) | View |
| 2021-02-12 4:17 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | PFIZER INC PFE | 0 0% | -2,209,631 (Position Closed) | View |
| 2021-02-12 08:04 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | Avoro Capital Advisors LLC | 6,800,000 9.9% | 6,800,000 (New Position) | View |
| 2021-02-11 5:08 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | BIOTECHNOLOGY VALUE FUND L P | 0 0% | -3,755,553 (Position Closed) | View |
| 2021-02-04 09:51 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | WELLINGTON MANAGEMENT GROUP LLP | 4,653,066 6.79% | 3,686,164 (+381.23%) | View |
| 2021-01-26 6:52 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | BlackRock Inc. BLK | 7,987,812 11.7% | 850,072 (+11.91%) | View |
| 2021-01-25 4:42 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | Sarissa Capital Management LP | 3,770,000 5.5% | 20,000 (+0.53%) | View |
| 2021-01-12 5:19 pm Purchase | 13D | MERSANA THERAPEUTICS INC MRSN | Bain Capital Life Sciences Fund II L.P. | 3,294,423 4.8% | 222,857 (+7.26%) | View |
| 2020-12-10 1:17 pm Sale | 13D | MERSANA THERAPEUTICS INC MRSN | New Enterprise Associates 14 L.P. | 0 0% | -3,961,232 (Position Closed) | View |
| 2020-11-19 1:29 pm Sale | 13D | MERSANA THERAPEUTICS INC MRSN | New Enterprise Associates 14 L.P. | 3,961,232 5.8% | -2,001,882 (-33.57%) | View |
| 2020-09-21 7:02 pm Sale | 13D | MERSANA THERAPEUTICS INC MRSN | New Enterprise Associates 14 L.P. | 5,963,114 8.7% | -1,998,798 (-25.10%) | View |