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MRSN
- As of 06/20/24, 01:19:31 AM: 31 Insider Transactions.
Sector:
Unknown
Industry:
Unknown
Prev Close:
$0.00
Avg Vol(3m):
0
P/E:
0.00
EPS:
0.00
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Insider Transactions for MRSN
Buy/Sell*
Filed Date
Subject
Symbol
Acquirer
Pct Owned
Details
S
2020-11-19 13:29:25.0
Mersana Therapeutics
MRSN
New Enterprise Associates 14
5.8%
view
S
2020-09-21 19:02:07.0
Mersana Therapeutics
MRSN
New Enterprise Associates 14
8.7%
view
B
2020-07-10 10:39:45.0
Mersana Therapeutics
MRSN
BlackRock Inc
10.7%
view
B
2020-04-24 14:17:36.0
Mersana Therapeutics
MRSN
New Enterprise Associates 14
12.9%
view
B
2020-04-17 17:26:06.0
Mersana Therapeutics
MRSN
Bain Capital Life Sciences Fund II
5.2%
view
S
2020-02-14 14:41:33.0
Mersana Therapeutics
MRSN
BIOTECHNOLOGY VALUE FUND L P
7.4%
view
B
2020-02-07 08:45:10.0
Mersana Therapeutics
MRSN
BlackRock Inc
5.1%
view
B
2019-12-20 20:22:25.0
Mersana Therapeutics
MRSN
Venrock Healthcare Capital Partners II
5.2%
view
B
2019-10-09 17:30:31.0
Mersana Therapeutics
MRSN
BIOTECHNOLOGY VALUE FUND L P
10.3%
view
B
2019-03-13 18:17:38.0
Mersana Therapeutics
MRSN
New Enterprise Associates 14
2.59%
view
B
2019-03-11 17:21:55.0
Mersana Therapeutics
MRSN
BIOTECHNOLOGY VALUE FUND L P
5.2%
view
B
2019-03-11 16:18:22.0
Mersana Therapeutics
MRSN
Sarissa Capital Management LP
7.9%
view
B
2019-02-14 07:53:43.0
Mersana Therapeutics
MRSN
ArrowMark Colorado Holdings LLC
8.75%
view
S
2019-01-10 09:37:00.0
Mersana Therapeutics
MRSN
WELLINGTON MANAGEMENT GROUP LLP
4.17%
view
S
2018-02-14 12:03:19.0
Mersana Therapeutics
MRSN
Rock Springs Capital Management LP
5.8%
view
B
2018-02-13 17:16:03.0
Mersana Therapeutics
MRSN
PFIZER INC
9.71%
view
S
2018-02-13 09:40:30.0
Mersana Therapeutics
MRSN
FMR LLC
3.885%
view
B
2018-02-09 14:30:32.0
Mersana Therapeutics
MRSN
Rho Ventures V
5.9%
view
B
2018-02-08 11:45:59.0
Mersana Therapeutics
MRSN
WELLINGTON MANAGEMENT GROUP LLP
10.63%
view
B
2017-08-10 10:33:49.0
Mersana Therapeutics
MRSN
WELLINGTON MANAGEMENT GROUP LLP
10.46%
view
B
2017-07-13 16:03:57.0
Mersana Therapeutics
MRSN
PFIZER INC
n/a
view
B
2017-07-11 14:02:16.0
Mersana Therapeutics
MRSN
New Enterprise Associates 14
2.59%
view
S
2017-07-07 16:32:38.0
Mersana Therapeutics
MRSN
Rock Springs Capital Management LP
6.8%
view
S
2007-05-15 14:58:10.0
INTERNATIONAL ELECTRONICS INC
IEIB
HUMMINGBIRD MANAGEMENT LLC
8.6%
view
B
2007-03-06 16:17:39.0
INTERNATIONAL ELECTRONICS INC
IEIB
HUMMINGBIRD MANAGEMENT LLC
9.7%
view
S
2007-01-09 12:18:44.0
INTERNATIONAL ELECTRONICS INC
IEIB
WEINER DAVID
7.0%
view
B
2006-12-05 13:10:53.0
INTERNATIONAL ELECTRONICS INC
IEIB
WEINER DAVID
8.9%
view
S
2005-06-10 00:00:00.0
INTERNATIONAL ELECTRONICS INC
IEIB
WEINER DAVID
0.0%
view
B
2002-02-14 00:00:00.0
INTERNATIONAL ELECTRONICS INC
IEIB
TANNENBAUM STEVEN
13.65%
view
B
2000-12-14 00:00:00.0
INTERNATIONAL ELECTRONICS INC
IEIB
TANNENBAUM STEVEN
12.36%
view
B
2000-08-17 00:00:00.0
INTERNATIONAL ELECTRONICS INC
IEIB
PACHOLDER ASSOCIATES INC
6.34%
view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.