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Mersana Therapeutics
MRSN

Overview Fund Activity

106 hedge funds and large institutions have $273M invested in Mersana Therapeutics in 2023 Q4 according to their latest regulatory filings, with 19 funds opening new positions, 33 increasing their positions, 35 reducing their positions, and 40 closing their positions.

Holders
106
Holders Change
-22
Holders Change %
-17.19%
% of All Funds
1.55%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
19
Increased
33
Reduced
35
Closed
40
Calls
$962K
Puts
$1M
Net Calls
-$41K
Net Calls Change
-$1.53M

Top Buyers

1
Morgan Stanley
1
Morgan Stanley
New York
$19.2M
2
NI
2
Nextech Invest
Switzerland
$13.9M
3
Balyasny Asset Management
3
Balyasny Asset Management
Illinois
$22.5M
4
ACP
4
Acuta Capital Partners
California
$5.49M
5
SCM
5
Silverarc Capital Management
Massachusetts
$14.9M

Top Sellers

1
BG
1
Bellevue Group
Switzerland
$0
2
AAA
2
Affinity Asset Advisors
New York
$2.32M
3
CC
3
Commodore Capital
New York
$0
4
Walleye Capital
4
Walleye Capital
New York
$0
5
BC
5
Boxer Capital
California
$0
Name Market Value Shares Shares
Change 		Shares
Change %
MLICM
101
Metropolitan Life Insurance Company (MetLife)
New York
$3.62K 1,558 -3,548 -69%
Russell Investments Group
102
Russell Investments Group
United Kingdom
$2.04K 878 – –
PNC Financial Services Group
103
PNC Financial Services Group
Pennsylvania
$464 200 +200 New
NSIM
104
North Star Investment Management
Illinois
$348 150 – –
ASN
105
Advisory Services Network
Georgia
$232 100 +100 New
FFA
106
Farther Finance Advisors
California
$2 1 +1 New
BG
107
Bellevue Group
Switzerland
– – -5,218,625 Closed
CC
108
Commodore Capital
New York
– – -2,244,378 Closed
Walleye Capital
109
Walleye Capital
New York
– – -2,021,467 Closed
BC
110
Boxer Capital
California
– – -2,000,000 Closed
IC
111
Ikarian Capital
Texas
– – -1,579,770 Closed
WP
112
Woodline Partners
California
– – -1,302,000 Closed
ACM
113
Altium Capital Management
New York
– – -1,059,136 Closed
DCM
114
DAFNA Capital Management
California
– – -734,038 Closed
NM
115
Newtyn Management
New York
– – -700,000 Closed
SCM
116
Sarissa Capital Management
Connecticut
– – -550,000 Closed
RPAM
117
Rhenman & Partners Asset Management
Sweden
– – -400,000 Closed
BFM
118
Boothbay Fund Management
New York
– – -340,545 Closed
Swiss National Bank
119
Swiss National Bank
Switzerland
– – -178,096 Closed
Verition Fund Management
120
Verition Fund Management
Connecticut
– – -163,451 Closed
CS
121
Credit Suisse
Switzerland
– – -129,067 Closed
Walleye Trading
122
Walleye Trading
New York
– – -121,502 Closed
UBS AM
123
UBS AM
Illinois
– – -102,575 Closed
GCP
124
GSA Capital Partners
United Kingdom
– – -101,788 Closed
AA
125
ALPS Advisors
Colorado
– – -88,919 Closed
2 3 4
5
6