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Mersana Therapeutics
MRSN

Overview Fund Activity

136 hedge funds and large institutions have $1.28B invested in Mersana Therapeutics in 2020 Q3 according to their latest regulatory filings, with 27 funds opening new positions, 55 increasing their positions, 38 reducing their positions, and 21 closing their positions.

Holders
136
Holders Change
+6
Holders Change %
+4.62%
% of All Funds
2.75%
Holding in Top 10
8
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-11.11%
% of All Funds
0.16%
New
27
Increased
55
Reduced
38
Closed
21
Calls
$8.81M
Puts
$2.97M
Net Calls
+$5.83M
Net Calls Change
-$787K

Top Buyers

1
Alkeon Capital Management
1
Alkeon Capital Management
New York
$28.9M
2
State Street
2
State Street
Massachusetts
$54.9M
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$34M
4
Point72 Asset Management
4
Point72 Asset Management
Connecticut
$19.4M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$70.6M

Top Sellers

1
CCM
1
Consonance Capital Management
New York
$64.6M
2
NMC
2
NEA Management Company
Maryland
$111M
3
MWNA
3
Marshall Wace North America
New York
$0
4
O
4
OrbiMed
New York
$24.7M
5
MIM
5
Monashee Investment Management
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$135M 7,252,006 +114,266 +2%
ACA
2
Avoro Capital Advisors
New York
$127M 6,800,000 +300,000 +5%
NMC
3
NEA Management Company
Maryland
$111M 5,959,520 -2,000,000 -25%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$70.6M 3,790,832 +904,705 +31%
CCM
5
Consonance Capital Management
New York
$64.6M 3,468,171 -2,428,155 -41%
BCLSI
6
Bain Capital Life Sciences Investors
Massachusetts
$64.2M 3,445,667 – –
State Street
7
State Street
Massachusetts
$54.9M 2,946,913 +1,381,464 +88%
Vanguard Group
8
Vanguard Group
Pennsylvania
$52.9M 2,840,701 -23,762 -0.8%
SCM
9
Sarissa Capital Management
Connecticut
$52.8M 2,837,000 +267,000 +10%
RSCM
10
Rock Springs Capital Management
Maryland
$35.1M 1,885,428 +7,000 +0.4%
T. Rowe Price Associates
11
T. Rowe Price Associates
Maryland
$34M 1,828,619 +1,083,399 +145%
Alkeon Capital Management
12
Alkeon Capital Management
New York
$28.9M 1,550,000 +1,550,000 New
PAMU
13
Pictet Asset Management (UK)
United Kingdom
$25.7M 1,382,346 +355,086 +35%
O
14
OrbiMed
New York
$24.7M 1,328,852 -581,156 -30%
Invesco
15
Invesco
Georgia
$20.8M 1,117,416 +134,621 +14%
GTC
16
Ghost Tree Capital
New York
$19.6M 1,050,000 +425,000 +68%
Point72 Asset Management
17
Point72 Asset Management
Connecticut
$19.4M 1,043,933 +1,043,933 New
AG
18
Artal Group
Luxembourg
$18.6M 1,000,000 +200,000 +25%
Janus Henderson Group
19
Janus Henderson Group
United Kingdom
$16.9M 908,845 +851,478 +1,484%
Fidelity Investments
20
Fidelity Investments
Massachusetts
$16.4M 878,329 -186,459 -18%
Deutsche Bank
21
Deutsche Bank
Germany
$16.1M 865,127 +806,801 +1,383%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$15.4M 828,976 +67,724 +9%
RCP
23
Rho Capital Partners
New York
$14.8M 796,458 – –
APM
24
Avidity Partners Management
Texas
$14.1M 757,400 -312,200 -29%
D.E. Shaw & Co
25
D.E. Shaw & Co
New York
$14M 751,726 -274,224 -27%
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