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Mersana Therapeutics
MRSN

Overview Fund Activity

82 hedge funds and large institutions have $234M invested in Mersana Therapeutics in 2020 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 34 increasing their positions, 13 reducing their positions, and 10 closing their positions.

Holders
82
Holders Change
+12
Holders Change %
+17.14%
% of All Funds
1.81%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.09%
New
25
Increased
34
Reduced
13
Closed
10
Calls
–
Puts
$58K
Net Calls
-$58K
Net Calls Change
-$58K

Top Buyers

1
VA
1
VR Adviser
New York
$15.3M
2
GTC
2
Ghost Tree Capital
New York
$11.7M
3
BI
3
BVF Inc
California
$13.8M
4
ACP
4
Acuta Capital Partners
California
$4.82M
5
BlackRock
5
BlackRock
New York
$19.2M

Top Sellers

1
O
1
OrbiMed
New York
$7.85M
2
Millennium Management
2
Millennium Management
New York
$2.99M
3
JPMorgan Chase & Co
3
JPMorgan Chase & Co
New York
$2.6M
4
OAM
4
Oxford Asset Management
United Kingdom
$0
5
BCM
5
Bridgeway Capital Management
Texas
$0
Name Market Value Shares Shares
Change 		Shares
Change %
NMC
1
NEA Management Company
Maryland
$69.7M 11,963,649 – –
SCM
2
Sarissa Capital Management
Connecticut
$21.9M 3,750,000 – –
BlackRock
3
BlackRock
New York
$19.2M 3,286,479 +821,160 +33%
VA
4
VR Adviser
New York
$15.3M 2,623,903 +2,623,903 New
BI
5
BVF Inc
California
$13.8M 2,372,400 +1,191,847 +101%
GTC
6
Ghost Tree Capital
New York
$11.7M 2,000,000 +1,200,000 +150%
Vanguard Group
7
Vanguard Group
Pennsylvania
$11M 1,892,028 +24,764 +1%
O
8
OrbiMed
New York
$7.85M 1,346,721 -726,598 -35%
RSCM
9
Rock Springs Capital Management
Maryland
$7.19M 1,233,000 – –
ACP
10
Acuta Capital Partners
California
$4.82M 827,500 +827,500 New
RCP
11
Rho Capital Partners
New York
$4.64M 796,458 – –
Renaissance Technologies
12
Renaissance Technologies
New York
$4.57M 783,568 +63,800 +9%
State Street
13
State Street
Massachusetts
$4.04M 693,327 +72,642 +12%
Geode Capital Management
14
Geode Capital Management
Massachusetts
$3.09M 529,788 +616 +0.1%
Millennium Management
15
Millennium Management
New York
$2.99M 513,299 -290,242 -36%
Citadel Advisors
16
Citadel Advisors
Florida
$2.69M 461,186 +241,084 +110%
JPMorgan Chase & Co
17
JPMorgan Chase & Co
New York
$2.6M 446,668 -231,579 -34%
Northern Trust
18
Northern Trust
Illinois
$2.35M 403,338 +14,722 +4%
DCM
19
DAFNA Capital Management
California
$2.34M 401,619 +293,156 +270%
Axa
20
Axa
France
$2.09M 358,477 +358,477 New
Bank of America
21
Bank of America
North Carolina
$1.76M 301,760 +262,177 +662%
SI
22
Sofinnova Investments
California
$1.31M 225,000 +225,000 New
Dimensional Fund Advisors
23
Dimensional Fund Advisors
Texas
$1.17M 201,136 +100,664 +100%
Acadian Asset Management
24
Acadian Asset Management
Massachusetts
$1.15M 196,888 +67,292 +52%
Bank of New York Mellon
25
Bank of New York Mellon
New York
$1.14M 195,019 +776 +0.4%
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