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Mersana Therapeutics
MRSN

Overview Fund Activity

157 hedge funds and large institutions have $437M invested in Mersana Therapeutics in 2023 Q1 according to their latest regulatory filings, with 26 funds opening new positions, 51 increasing their positions, 44 reducing their positions, and 20 closing their positions.

Holders
157
Holders Change
+5
Holders Change %
+3.29%
% of All Funds
2.51%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
26
Increased
51
Reduced
44
Closed
20
Calls
$8.89M
Puts
$662K
Net Calls
+$8.23M
Net Calls Change
+$8.18M

Top Buyers

1
APM
1
Avidity Partners Management
Texas
$14.1M
2
BBA
2
Baker Bros. Advisors
New York
$7.75M
3
B
3
Braidwell
Connecticut
$13.8M
4
5VM
4
5AM Venture Management
California
$4.87M
5
Goldman Sachs
5
Goldman Sachs
New York
$12.1M

Top Sellers

1
Millennium Management
1
Millennium Management
New York
$5.18M
2
ACP
2
Acuta Capital Partners
California
$247K
3
WP
3
Woodline Partners
California
$0
4
LP
4
LMR Partners
United Kingdom
$0
5
OM
5
Opaleye Management
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Bank of America
26
Bank of America
North Carolina
$4.18M 1,015,884 +255,161 +34%
DCMIC
27
Decheng Capital Management III (Cayman)
Cayman Islands
$3.72M 904,268 – –
Northern Trust
28
Northern Trust
Illinois
$3.64M 884,633 -19,743 -2%
Two Sigma Advisers
29
Two Sigma Advisers
New York
$3.31M 804,500 -248,800 -24%
Charles Schwab
30
Charles Schwab
California
$3M 729,671 +58,644 +9%
HIM
31
Hillsdale Investment Management
Ontario, Canada
$2.85M 693,200 – –
SCM
32
Silverarc Capital Management
Massachusetts
$2.22M 540,059 -600,123 -53%
DCM
33
DAFNA Capital Management
California
$2.1M 510,863 +97,400 +24%
VOYA Investment Management
34
VOYA Investment Management
Georgia
$2.06M 502,159 +215,265 +75%
KCM
35
Kennedy Capital Management
Missouri
$2.02M 492,064 +53,082 +12%
Rafferty Asset Management
36
Rafferty Asset Management
New York
$2M 485,708 +68,844 +17%
CIBC Asset Management
37
CIBC Asset Management
Ontario, Canada
$1.96M 476,684 -90,101 -16%
UOC
38
UBS O'Connor
Illinois
$1.9M 462,699 +462,699 New
Dimensional Fund Advisors
39
Dimensional Fund Advisors
Texas
$1.72M 419,337 -70,446 -14%
Citigroup
40
Citigroup
New York
$1.72M 419,272 +225,800 +117%
LPC
41
Lion Point Capital
New York
$1.68M 409,120 +409,120 New
Bank of New York Mellon
42
Bank of New York Mellon
New York
$1.52M 369,786 +1,757 +0.5%
Vontobel Holding
43
Vontobel Holding
Switzerland
$1.41M 343,079 +343,079 New
SAM
44
Sectoral Asset Management
Quebec, Canada
$1.41M 343,079 +343,079 New
RPAM
45
Rhenman & Partners Asset Management
Sweden
$1.4M 350,000 -50,000 -13%
Hudson Bay Capital Management
46
Hudson Bay Capital Management
Connecticut
$1.34M 325,000 +50,000 +18%
CSS
47
Cubist Systematic Strategies
Connecticut
$1.28M 310,941 -116,211 -27%
CM
48
Caption Management
Oklahoma
$1.22M 295,900 +295,900 New
PIM
49
Platinum Investment Management
Australia
$1.19M 290,298 – –
Susquehanna International Group
50
Susquehanna International Group
Pennsylvania
$1.13M 274,286 +234,334 +587%
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