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Mersana Therapeutics
MRSN

Overview Fund Activity

65 hedge funds and large institutions have $194M invested in Mersana Therapeutics in 2019 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 26 increasing their positions, 9 reducing their positions, and 4 closing their positions.

Holders
65
Holders Change
+17
Holders Change %
+35.42%
% of All Funds
1.41%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.04%
New
21
Increased
26
Reduced
9
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
NMC
1
NEA Management Company
Maryland
$62.6M
2
SCM
2
Sarissa Capital Management
Connecticut
$19.7M
3
BI
3
BVF Inc
California
$13.2M
4
EC
4
EcoR1 Capital
California
$12.1M
5
O
5
OrbiMed
New York
$9.95M

Top Sellers

1
Fidelity International
1
Fidelity International
Bermuda
$0
2
JG
2
Jefferies Group
New York
$0
3
Jacobs Levy Equity Management
3
Jacobs Levy Equity Management
New Jersey
$0
4
Morgan Stanley
4
Morgan Stanley
New York
$36K
5
TRCT
5
Tower Research Capital (TRC)
New York
$8K
Name Market Value Shares Shares
Change 		Shares
Change %
NMC
1
NEA Management Company
Maryland
$62.6M 11,894,267 +3,750,000 +46%
SCM
2
Sarissa Capital Management
Connecticut
$19.7M 3,750,000 +3,750,000 New
ACH
3
ArrowMark Colorado Holdings
Colorado
$16.9M 3,216,002 +1,188,497 +59%
BI
4
BVF Inc
California
$13.2M 2,500,000 +2,500,000 New
EC
5
EcoR1 Capital
California
$12.1M 2,300,000 +2,300,000 New
O
6
OrbiMed
New York
$9.95M 1,891,119 +1,891,119 New
Point72 Asset Management
7
Point72 Asset Management
Connecticut
$8.07M 1,534,370 +984,370 +179%
Vanguard Group
8
Vanguard Group
Pennsylvania
$7.89M 1,500,491 +1,233,807 +463%
RSCM
9
Rock Springs Capital Management
Maryland
$7.36M 1,400,000 +400,000 +40%
Wellington Management Group
10
Wellington Management Group
Massachusetts
$5.08M 965,732 -1,170 -0.1%
BlackRock
11
BlackRock
New York
$4.72M 897,845 +116,717 +15%
JPMorgan Chase & Co
12
JPMorgan Chase & Co
New York
$4.33M 823,364 +398,578 +94%
RCP
13
Rho Capital Partners
New York
$4.19M 796,458 – –
DCM
14
DAFNA Capital Management
California
$2.12M 403,300 +403,300 New
Geode Capital Management
15
Geode Capital Management
Massachusetts
$1.94M 369,661 +241,429 +188%
Fidelity Investments
16
Fidelity Investments
Massachusetts
$1.35M 256,328 – –
SFM
17
Sphera Funds Management
Israel
$1.05M 200,000 +200,000 New
PVI
18
Pura Vida Investments
New York
$1.04M 196,913 +196,913 New
State Street
19
State Street
Massachusetts
$1.01M 191,490 +15,682 +9%
Northern Trust
20
Northern Trust
Illinois
$947K 180,068 +40,954 +29%
Deutsche Bank
21
Deutsche Bank
Germany
$938K 178,568 +161,908 +972%
Renaissance Technologies
22
Renaissance Technologies
New York
$918K 174,520 +174,520 New
PPA
23
Parametric Portfolio Associates
Washington
$618K 117,514 +1,940 +2%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$603K 114,612 +114,612 New
Millennium Management
25
Millennium Management
New York
$503K 95,714 +51,458 +116%
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