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Mersana Therapeutics
MRSN

Overview Fund Activity

147 hedge funds and large institutions have $370M invested in Mersana Therapeutics in 2023 Q2 according to their latest regulatory filings, with 33 funds opening new positions, 56 increasing their positions, 41 reducing their positions, and 43 closing their positions.

Holders
147
Holders Change
-10
Holders Change %
-6.37%
% of All Funds
2.32%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.02%
New
33
Increased
56
Reduced
41
Closed
43
Calls
$18.1M
Puts
$2.24M
Net Calls
+$15.8M
Net Calls Change
+$7.58M

Top Buyers

1
Balyasny Asset Management
1
Balyasny Asset Management
Illinois
$15.9M
2
DM
2
Deerfield Management
New York
$9.49M
3
LGM
3
Logos Global Management
California
$9.21M
4
RG
4
Redmile Group
California
$5.59M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$4.87M

Top Sellers

1
B
1
Braidwell
Connecticut
$0
2
O
2
OrbiMed
New York
$23.7M
3
Goldman Sachs
3
Goldman Sachs
New York
$4.59M
4
State Street
4
State Street
Massachusetts
$16.1M
5
ABG
5
Ally Bridge Group
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
California State Teachers Retirement System (CalSTRS)
76
California State Teachers Retirement System (CalSTRS)
California
$347K 105,346 +815 +0.8%
Wells Fargo
77
Wells Fargo
California
$339K 102,903 +5,628 +6%
Russell Investments Group
78
Russell Investments Group
United Kingdom
$328K 99,764 +81,367 +442%
Skandinaviska Enskilda Banken (SEB)
79
Skandinaviska Enskilda Banken (SEB)
Sweden
$306K 93,132 +34,663 +59%
AA
80
ALPS Advisors
Colorado
$277K 84,080 +12,909 +18%
BNP Paribas Financial Markets
81
BNP Paribas Financial Markets
France
$243K 74,002 -147,706 -67%
GCM
82
Graham Capital Management
Connecticut
$243K 73,744 +73,744 New
Legal & General Group
83
Legal & General Group
United Kingdom
$240K 72,837 +36,387 +100%
AQR Capital Management
84
AQR Capital Management
Connecticut
$237K 72,043 +38,141 +113%
State of Wisconsin Investment Board
85
State of Wisconsin Investment Board
Wisconsin
$230K 70,024 -3,614 -5%
Simplex Trading
86
Simplex Trading
Illinois
$216K 65,850 +20,308 +45%
QF
87
QVT Financial
New York
$206K 62,657 – –
PA
88
Profund Advisors
Maryland
$203K 61,786 -28,309 -31%
GTC
89
Ghost Tree Capital
New York
$202K 61,250 +61,250 New
Thrivent Financial for Lutherans
90
Thrivent Financial for Lutherans
Minnesota
$191K 58,073 -2,849 -5%
Mirae Asset Global Investments
91
Mirae Asset Global Investments
South Korea
$187K 57,099 -6,966 -11%
VOYA Investment Management
92
VOYA Investment Management
Georgia
$187K 56,707 -445,452 -89%
IC
93
Ikarian Capital
Texas
$165K 50,000 +50,000 New
AIG
94
American International Group
New York
$159K 48,298 +3,628 +8%
MIM
95
MetLife Investment Management
New Jersey
$153K 46,642 – –
Canada Life
96
Canada Life
Manitoba, Canada
$147K 44,554 – –
Manulife (Manufacturers Life Insurance)
97
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$134K 40,866 +5,269 +15%
EGM
98
Engineers Gate Manager
New York
$134K 40,740 -28,420 -41%
JFG
99
Jefferies Financial Group
New York
$132K 39,975 +39,975 New
Invesco
100
Invesco
Georgia
$127K 38,616 +5,805 +18%
2 3
4
5 6