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Mersana Therapeutics
MRSN

Overview Fund Activity

48 hedge funds and large institutions have $70M invested in Mersana Therapeutics in 2018 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 12 increasing their positions, 15 reducing their positions, and 6 closing their positions.

Holders
48
Holders Change
+2
Holders Change %
+4.35%
% of All Funds
1.07%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.02%
New
9
Increased
12
Reduced
15
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$2.24M
2
JG
2
Jefferies Group
New York
$1.37M
3
ACH
3
ArrowMark Colorado Holdings
Colorado
$8.27M
4
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$1.73M
5
HP
5
Hikari Power
Japan
$348K

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$3.94M
2
EC
2
EcoR1 Capital
California
$0
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$1.09M
4
Millennium Management
4
Millennium Management
New York
$181K
5
BlackRock
5
BlackRock
New York
$3.19M
Name Market Value Shares Shares
Change 		Shares
Change %
NMC
1
NEA Management Company
Maryland
$33.2M 8,144,267 – –
ACH
2
ArrowMark Colorado Holdings
Colorado
$8.27M 2,027,505 +187,172 +10%
RSCM
3
Rock Springs Capital Management
Maryland
$4.08M 1,000,000 – –
Wellington Management Group
4
Wellington Management Group
Massachusetts
$3.94M 966,902 -1,763,493 -65%
RCP
5
Rho Capital Partners
New York
$3.25M 796,458 – –
BlackRock
6
BlackRock
New York
$3.19M 781,128 -243,914 -24%
Point72 Asset Management
7
Point72 Asset Management
Connecticut
$2.24M 550,000 +550,000 New
JPMorgan Chase & Co
8
JPMorgan Chase & Co
New York
$1.73M 424,786 +106,425 +33%
Fidelity International
9
Fidelity International
Bermuda
$1.45M 355,055 – –
JG
10
Jefferies Group
New York
$1.37M 336,238 +336,238 New
Vanguard Group
11
Vanguard Group
Pennsylvania
$1.09M 266,684 -334,417 -56%
Fidelity Investments
12
Fidelity Investments
Massachusetts
$1.05M 256,328 – –
State Street
13
State Street
Massachusetts
$717K 175,808 -8,389 -5%
Northern Trust
14
Northern Trust
Illinois
$567K 139,114 -6,916 -5%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$523K 128,232 +5,798 +5%
PPA
16
Parametric Portfolio Associates
Washington
$472K 115,574 +50,948 +79%
HP
17
Hikari Power
Japan
$348K 85,396 +85,396 New
Two Sigma Investments
18
Two Sigma Investments
New York
$277K 67,925 +67,925 New
Citadel Advisors
19
Citadel Advisors
Florida
$200K 49,042 +49,042 New
SIM
20
Spark Investment Management
New York
$200K 49,200 +49,200 New
Millennium Management
21
Millennium Management
New York
$181K 44,256 -325,467 -88%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$160K 39,203 +6,306 +19%
Jacobs Levy Equity Management
23
Jacobs Levy Equity Management
New Jersey
$158K 38,681 +38,681 New
Bank of America
24
Bank of America
North Carolina
$129K 31,807 +29,700 +1,410%
Goldman Sachs
25
Goldman Sachs
New York
$121K 29,557 -4,035 -12%
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