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 |
2023-02-14 4:43 pm Purchase |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
ORBIMED ADVISORS LLC | 7,082,837 7.100% |
7,082,837![]() (New Position) |
Filing History |
2023-02-14 4:18 pm Sale |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
BB Biotech AG | 4,066,200 4.100% |
-68,800![]() (-1.66%) |
Filing History |
2023-02-14 09:38 am Purchase |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
AVORO CAPITAL ADVISORS LLC | 7,550,000 7.600% |
750,000![]() (+11.03%) |
Filing History |
2023-02-13 6:04 pm Sale |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
Rho Ventures V L.P. | 604,213 0.600% |
-726,974![]() (-54.61%) |
Filing History |
2023-02-09 11:27 am Purchase |
2022-12-30 | 13G | Mersana Therapeutics, Inc. MRSN |
The Vanguard Group | 4,449,040 4.460% |
841,609![]() (+23.33%) |
Filing History |
2023-02-06 2:53 pm Sale |
2022-12-30 | 13G | Mersana Therapeutics, Inc. MRSN |
Wellington Management Group LLP | 0 0.000% |
-5,017,078![]() (Position Closed) |
Filing History |
2023-02-03 12:27 pm Purchase |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
STATE STREET CORP STT |
5,856,061 5.870% |
1,635,504![]() (+38.75%) |
Filing History |
2023-01-31 1:58 pm Purchase |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
BlackRock Inc. BLK |
7,491,929 7.500% |
12,700![]() (+0.17%) |
Filing History |
2023-01-19 4:06 pm Sale |
2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
Integrated Core Strategies (US) LLC | 3,663,527 3.700% |
-67,184![]() (-1.80%) |
Filing History |
2022-05-11 5:26 pm Unchanged |
2022-05-09 | 13D | Mersana Therapeutics, Inc. MRSN |
Bain Capital Life Sciences Fund II, L.P. | 4,041,733 4.200% |
0 (Unchanged) |
Filing History |
2022-04-14 4:56 pm Purchase |
2022-04-13 | 13D | Mersana Therapeutics, Inc. MRSN |
Bain Capital Life Sciences Fund II, L.P. | 4,041,733 4.800% |
747,310![]() (+22.68%) |
Filing History |
2022-02-17 4:12 pm Purchase |
2022-02-15 | 13G | Mersana Therapeutics, Inc. MRSN |
Integrated Core Strategies (US) LLC | 3,730,711 5.200% |
3,730,711![]() (New Position) |
Filing History |
2022-02-11 2:34 pm Purchase |
2021-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
STATE STREET CORP STT |
4,220,557 5.870% |
4,220,557![]() (New Position) |
Filing History |
2022-02-10 08:27 am Purchase |
2021-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
The Vanguard Group | 3,607,431 5.020% |
3,607,431![]() (New Position) |
Filing History |
2022-02-08 5:02 pm Unchanged |
2022-02-07 | 13D | Mersana Therapeutics, Inc. MRSN |
Bain Capital Life Sciences Fund II, L.P. | 3,294,423 4.400% |
0 (Unchanged) |
Filing History |
2022-02-04 09:21 am Purchase |
2021-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
Wellington Management Group LLP | 5,017,078 6.980% |
364,012![]() (+7.82%) |
Filing History |
2022-01-27 5:13 pm Unchanged |
2021-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
BlackRock Inc. BLK |
7,479,229 10.400% |
0 (Unchanged) |
Filing History |
2022-01-26 09:17 am Sale |
2021-12-31 | 13G | Mersana Therapeutics, Inc. MRSN |
BlackRock Inc. BLK |
7,479,229 10.400% |
-508,583![]() (-6.37%) |
Filing History |
2022-01-03 5:10 pm Unchanged |
2021-12-29 | 13D | Mersana Therapeutics, Inc. MRSN |
Bain Capital Life Sciences Fund II, L.P. | 3,294,423 4.500% |
0 (Unchanged) |
Filing History |
2021-09-15 6:23 pm Purchase |
2021-09-10 | 13G | Mersana Therapeutics, Inc. MRSN |
BB Biotech AG | 4,135,000 5.800% |
4,135,000![]() (New Position) |
Filing History |