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 |
| 2021-02-12 4:17 pm Sale |
2020-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
PFIZER INC PFE |
0 0.000% |
-2,209,631 (Position Closed) |
Filing History |
| 2021-02-12 08:04 am Purchase |
2020-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
AVORO CAPITAL ADVISORS LLC | 6,800,000 9.900% |
6,800,000 (New Position) |
Filing History |
| 2021-02-11 5:08 pm Sale |
2020-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
BIOTECHNOLOGY VALUE FUND L P | 0 0.000% |
-3,755,553 (Position Closed) |
Filing History |
| 2021-02-04 09:51 am Purchase |
2020-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
WELLINGTON MANAGEMENT CO LLP | 4,653,066 6.790% |
3,686,164 (+381.23%) |
Filing History |
| 2021-01-26 6:52 pm Purchase |
2020-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
BLACKROCK INC BLK |
7,987,812 11.700% |
850,072 (+11.91%) |
Filing History |
| 2021-01-25 4:42 pm Purchase |
2021-01-15 | 13G | Mersana Therapeutics, Inc. MRSN |
Sarissa Capital Management LP | 3,770,000 5.500% |
20,000 (+0.53%) |
Filing History |
| 2021-01-12 5:19 pm Purchase |
2021-01-08 | 13D | Mersana Therapeutics, Inc. MRSN |
Bain Capital Life Sciences Fund II, L.P. | 3,294,423 4.800% |
222,857 (+7.26%) |
Filing History |
| 2020-12-10 1:17 pm Sale |
2020-12-01 | 13D | Mersana Therapeutics, Inc. MRSN |
New Enterprise Associates 14, L.P. | 0 0.000% |
-3,961,232 (Position Closed) |
Filing History |
| 2020-11-19 1:29 pm Sale |
2020-11-09 | 13D | Mersana Therapeutics, Inc. MRSN |
New Enterprise Associates 14, L.P. | 3,961,232 5.800% |
-2,001,882 (-33.57%) |
Filing History |
| 2020-09-21 7:02 pm Sale |
2020-09-14 | 13D | Mersana Therapeutics, Inc. MRSN |
New Enterprise Associates 14, L.P. | 5,963,114 8.700% |
-1,998,798 (-25.10%) |
Filing History |
| 2020-07-10 10:39 am Purchase |
2020-06-30 | 13G | Mersana Therapeutics, Inc. MRSN |
BLACKROCK INC BLK |
7,137,740 10.700% |
4,672,421 (+189.53%) |
Filing History |