Activist 13D/13G Filings - Mersana Therapeutics Inc. (MRSN)

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
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Time period
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Reported
DateTime
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportFiling
2020-07-10
10:39 am
Purchase
13GMERSANA THERAPEUTICS INC
MRSN
BlackRock Inc.
BLK
7,137,740
10.7%
4,672,421increase
(+189.53%)
View
2020-04-24
2:17 pm
Sale
13DMERSANA THERAPEUTICS INC
MRSN
New Enterprise Associates 14 L.P.7,961,912
12.9%
-3,941,160decrease
(-33.11%)
View
2020-04-17
5:26 pm
Purchase
13DMERSANA THERAPEUTICS INC
MRSN
Bain Capital Life Sciences Fund II L.P.3,071,566
5.2%
3,071,566increase
(New Position)
View
2020-02-14
4:40 pm
Sale
13GMERSANA THERAPEUTICS INC
MRSN
ArrowMark Colorado Holdings LLC0
0%
-2,027,505decrease
(Position Closed)
View
2020-02-14
2:41 pm
Sale
13GMERSANA THERAPEUTICS INC
MRSN
BIOTECHNOLOGY VALUE FUND L P3,755,553
7.4%
-1,170,866decrease
(-23.77%)
View
2020-02-07
08:45 am
Purchase
13GMERSANA THERAPEUTICS INC
MRSN
BlackRock Inc.
BLK
2,465,319
5.1%
2,465,319increase
(New Position)
View
2019-12-20
8:22 pm
Purchase
13GMERSANA THERAPEUTICS INC
MRSN
Venrock Healthcare Capital Partners II L.P.2,483,903
5.2%
2,483,903increase
(New Position)
View
2019-10-09
5:30 pm
Purchase
13GMERSANA THERAPEUTICS INC
MRSN
BIOTECHNOLOGY VALUE FUND L P4,926,419
10.3%
2,426,419increase
(+97.06%)
View
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