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Mersana Therapeutics
MRSN

Overview Fund Activity

77 hedge funds and large institutions have $162M invested in Mersana Therapeutics in 2019 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 33 increasing their positions, 13 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
77
Holders Change
+12
Holders Change %
+18.46%
% of All Funds
1.68%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
20
Increased
33
Reduced
13
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
BC
Boxer Capital
California
+$8.44M
2
BlackRock
BlackRock
New York
+$6.04M
3
Vanguard Group
Vanguard Group
Pennsylvania
+$1.63M
4
State Street
State Street
Massachusetts
+$1.4M
5
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
+$676K

Top Sellers

1
EC
EcoR1 Capital
California
-$3.68M
2
Point72 Asset Management
Point72 Asset Management
Connecticut
-$3.52M
3
ACH
ArrowMark Colorado Holdings
Colorado
-$3.04M
4
PVI
Pura Vida Investments
New York
-$1.04M
5
DCM
DAFNA Capital Management
California
-$519K
Name Holding Trade Value Shares
Change 		Shares
Change %
NMC
1
NEA Management Company
Maryland
$48.2M – – –
SCM
2
Sarissa Capital Management
Connecticut
$15.2M – – –
BI
3
BVF Inc
California
$10.1M -$8.51K -84 -0.1%
ACH
4
ArrowMark Colorado Holdings
Colorado
$9.98M -$3.04M -30,063 -23%
BlackRock
5
BlackRock
New York
$9.68M +$6.04M +59,705 +166%
BC
6
Boxer Capital
California
$8.44M +$8.44M +83,360 New
Vanguard Group
7
Vanguard Group
Pennsylvania
$7.71M +$1.63M +16,120 +27%
O
8
OrbiMed
New York
$7.66M – – –
RSCM
9
Rock Springs Capital Management
Maryland
$5.67M – – –
EC
10
EcoR1 Capital
California
$5.64M -$3.68M -36,311 -39%
Wellington Management Group
11
Wellington Management Group
Massachusetts
$3.65M -$258K -2,551 -7%
JPMorgan Chase & Co
12
JPMorgan Chase & Co
New York
$3.32M -$38.7K -379 -1%
RCP
13
Rho Capital Partners
New York
$3.23M – – –
Point72 Asset Management
14
Point72 Asset Management
Connecticut
$2.69M -$3.52M -34,775 -57%
State Street
15
State Street
Massachusetts
$2.18M +$1.4M +13,856 +181%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$1.96M +$460K +4,543 +31%
DCM
17
DAFNA Capital Management
California
$1.12M -$519K -5,123 -32%
Renaissance Technologies
18
Renaissance Technologies
New York
$1.08M +$370K +3,660 +52%
Fidelity Investments
19
Fidelity Investments
Massachusetts
$1.04M +$1.82K +18 +0.2%
D.E. Shaw & Co
20
D.E. Shaw & Co
New York
$991K +$527K +5,209 +114%
Northern Trust
21
Northern Trust
Illinois
$827K +$97.7K +965 +13%
SFM
22
Sphera Funds Management
Israel
$810K – – –
Marshall Wace
23
Marshall Wace
United Kingdom
$698K +$590K +5,825 +544%
Jacobs Levy Equity Management
24
Jacobs Levy Equity Management
New Jersey
$676K +$676K +6,675 New
Morgan Stanley
25
Morgan Stanley
New York
$639K +$611K +6,042 +2,213%
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