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Mersana Therapeutics
MRSN

Overview Fund Activity

110 hedge funds and large institutions have $647M invested in Mersana Therapeutics in 2021 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 45 increasing their positions, 34 reducing their positions, and 32 closing their positions.

Holders
110
Holders Change
-21
Holders Change %
-16.03%
% of All Funds
1.93%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.04%
New
12
Increased
45
Reduced
34
Closed
32
Calls
$1.22M
Puts
$1.57M
Net Calls
-$350K
Net Calls Change
+$3.36M

Top Buyers

1
PAMS
1
Pictet Asset Management (Switzerland)
Switzerland
$21.1M
2
BG
2
Bellevue Group
Switzerland
$40.2M
3
State Street
3
State Street
Massachusetts
$38.6M
4
Goldman Sachs
4
Goldman Sachs
New York
$10.8M
5
Morgan Stanley
5
Morgan Stanley
New York
$6.3M

Top Sellers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$0
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$9.25M
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$56.7M
4
GTC
4
Ghost Tree Capital
New York
$0
5
CC
5
Commodore Capital
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Two Sigma Investments
26
Two Sigma Investments
New York
$3.28M 348,245 -215,785 -38%
Nuveen Asset Management
27
Nuveen Asset Management
Illinois
$2.6M 276,188 +16,240 +6%
Bank of New York Mellon
28
Bank of New York Mellon
New York
$2.55M 270,809 +21,808 +9%
Fidelity Investments
29
Fidelity Investments
Massachusetts
$2.25M 238,034 -141,995 -37%
Allianz Asset Management
30
Allianz Asset Management
Germany
$2.19M 232,457 -50,993 -18%
First Manhattan
31
First Manhattan
New York
$2.06M 218,070 +218,070 New
Dimensional Fund Advisors
32
Dimensional Fund Advisors
Texas
$1.77M 187,516 +11,512 +7%
Hudson Bay Capital Management
33
Hudson Bay Capital Management
Connecticut
$1.65M 175,000 +105,000 +150%
Rafferty Asset Management
34
Rafferty Asset Management
New York
$1.53M 162,036 +44,558 +38%
Macquarie Group
35
Macquarie Group
Australia
$1.48M 156,764 +5,266 +3%
DCM
36
DAFNA Capital Management
California
$1.32M 140,263 +12,000 +9%
Swiss National Bank
37
Swiss National Bank
Switzerland
$1.16M 122,996 +2,200 +2%
Citigroup
38
Citigroup
New York
$1.07M 113,351 -72,113 -39%
PIM
39
Platinum Investment Management
Australia
$1.05M 110,906 – –
Deutsche Bank
40
Deutsche Bank
Germany
$982K 104,207 -92,119 -47%
Millennium Management
41
Millennium Management
New York
$978K 103,737 -222,406 -68%
Voloridge Investment Management
42
Voloridge Investment Management
Florida
$910K 96,451 +96,451 New
Susquehanna International Group
43
Susquehanna International Group
Pennsylvania
$884K 93,741 -16,861 -15%
UBS Group
44
UBS Group
Switzerland
$832K 88,231 +64,795 +276%
California State Teachers Retirement System (CalSTRS)
45
California State Teachers Retirement System (CalSTRS)
California
$789K 83,710 -11,207 -12%
RhumbLine Advisers
46
RhumbLine Advisers
Massachusetts
$780K 82,743 +2,409 +3%
Bank of America
47
Bank of America
North Carolina
$730K 77,385 +22,153 +40%
AllianceBernstein
48
AllianceBernstein
Tennessee
$679K 72,000 – –
BNP Paribas Financial Markets
49
BNP Paribas Financial Markets
France
$677K 71,780 +69,280 +2,771%
State of Wisconsin Investment Board
50
State of Wisconsin Investment Board
Wisconsin
$675K 71,600 -8,100 -10%
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