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Mersana Therapeutics
MRSN

Overview Fund Activity

56 hedge funds and large institutions have $295M invested in Mersana Therapeutics in 2018 Q1 according to their latest regulatory filings, with 13 funds opening new positions, 29 increasing their positions, 9 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
56
Holders Change
+6
Holders Change %
+12%
% of All Funds
1.29%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
13
Increased
29
Reduced
9
Closed
7
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$8.39M
2
GTC
Ghost Tree Capital
New York
+$4.39M
3
BlackRock
BlackRock
New York
+$3.8M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$3.79M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$2.68M

Top Sellers

1
CAM
Cormorant Asset Management
Massachusetts
-$4.86M
2
Victory Capital Management
Victory Capital Management
Texas
-$952K
3
RSCM
Rock Springs Capital Management
Maryland
-$423K
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$402K
5
RCP
Rho Capital Partners
New York
-$340K
Name Holding Trade Value Shares
Change 		Shares
Change %
NMC
1
NEA Management Company
Maryland
$128M – – –
Wellington Management Group
2
Wellington Management Group
Massachusetts
$46.5M +$8.39M +21,281 +22%
RSCM
3
Rock Springs Capital Management
Maryland
$20.5M -$423K -1,072 -2%
PAI
4
ProQuest Associates IV
Florida
$15.1M – – –
ACH
5
ArrowMark Colorado Holdings
Colorado
$14.7M +$514K +1,305 +4%
BlackRock
6
BlackRock
New York
$12.9M +$3.8M +9,628 +42%
RCP
7
Rho Capital Partners
New York
$12.6M -$340K -863 -3%
Fidelity International
8
Fidelity International
Bermuda
$7.47M – – –
Vanguard Group
9
Vanguard Group
Pennsylvania
$6.65M +$3.79M +9,615 +133%
JPMorgan Chase & Co
10
JPMorgan Chase & Co
New York
$4.86M -$402K -1,020 -8%
GTC
11
Ghost Tree Capital
New York
$4.39M +$4.39M +11,130 New
Fidelity Investments
12
Fidelity Investments
Massachusetts
$4.05M -$157K -398 -4%
Point72 Asset Management
13
Point72 Asset Management
Connecticut
$2.68M +$2.68M +6,800 New
State Street
14
State Street
Massachusetts
$2.36M +$1.67M +4,235 +240%
Northern Trust
15
Northern Trust
Illinois
$1.76M +$926K +2,350 +111%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$1.36M +$363K +922 +36%
Allianz Asset Management
17
Allianz Asset Management
Germany
$1.04M -$260K -659 -20%
Russell Investments Group
18
Russell Investments Group
United Kingdom
$676K +$676K +1,714 New
CS
19
Candriam SCA
Luxembourg
$568K +$379K +960 +200%
PPA
20
Parametric Portfolio Associates
Washington
$552K +$180K +457 +49%
SIM
21
Spark Investment Management
New York
$393K +$188K +477 +92%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$392K +$148K +375 +61%
Morgan Stanley
23
Morgan Stanley
New York
$387K +$160K +405 +70%
Goldman Sachs
24
Goldman Sachs
New York
$381K +$144K +367 +61%
PWLP
25
Prio Wealth Limited Partnership
Massachusetts
$371K +$371K +941 New
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