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Mersana Therapeutics
MRSN

Overview Fund Activity

132 hedge funds and large institutions have $1.14B invested in Mersana Therapeutics in 2021 Q1 according to their latest regulatory filings, with 18 funds opening new positions, 55 increasing their positions, 46 reducing their positions, and 36 closing their positions.

Holders
132
Holders Change
-19
Holders Change %
-12.58%
% of All Funds
2.32%
Holding in Top 10
3
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-50%
% of All Funds
0.05%
New
18
Increased
55
Reduced
46
Closed
36
Calls
$9.35M
Puts
$9.73M
Net Calls
-$376K
Net Calls Change
-$7.16M

Top Buyers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$32.3M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$100M
3
O
3
OrbiMed
New York
$30.6M
4
SCM
4
Sarissa Capital Management
Connecticut
$64.8M
5
BG
5
Bellevue Group
Switzerland
$46.1M

Top Sellers

1
CCM
1
Consonance Capital Management
New York
$0
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$0
3
Citadel Advisors
3
Citadel Advisors
Florida
$8.71M
4
Invesco
4
Invesco
Georgia
$6.67M
5
GPP
5
Great Point Partners
Connecticut
$0
Name Market Value Shares Shares
Change 		Shares
Change %
UBS AM
76
UBS AM
Illinois
$640K 39,567 -28,615 -42%
TRSOTSOK
77
Teachers Retirement System of the State of Kentucky
Kentucky
$596K 36,839 – –
Bank of America
78
Bank of America
North Carolina
$540K 33,391 -343,888 -91%
HF
79
HRT Financial
New York
$516K 31,899 +31,899 New
Manulife (Manufacturers Life Insurance)
80
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$494K 30,541 -1,607 -5%
AA
81
AlphaCentric Advisors
Puerto Rico
$493K 30,500 +25,900 +563%
OMC
82
Old Mission Capital
Illinois
$417K 25,761 +25,761 New
JF
83
Jump Financial
Illinois
$409K 25,332 +25,332 New
SCM
84
Silverarc Capital Management
Massachusetts
$405K 25,000 +14,237 +132%
ProShare Advisors
85
ProShare Advisors
Maryland
$385K 23,779 +1,415 +6%
PWLP
86
Prio Wealth Limited Partnership
Massachusetts
$381K 23,529 – –
JRP
87
Jasper Ridge Partners
California
$374K 23,100 -3,028 -12%
VOYA Investment Management
88
VOYA Investment Management
Georgia
$371K 22,950 -110 -0.5%
State Board of Administration of Florida Retirement System
89
State Board of Administration of Florida Retirement System
Florida
$362K 22,360 -680 -3%
Wells Fargo
90
Wells Fargo
California
$345K 21,347 -101,701 -83%
MIM
91
MetLife Investment Management
New Jersey
$342K 21,149 -1,767 -8%
CAC
92
Cowen and Company
New York
$341K 21,100 +21,100 New
DekaBank Deutsche Girozentrale
93
DekaBank Deutsche Girozentrale
Germany
$326K 21,000 – –
Balyasny Asset Management
94
Balyasny Asset Management
Illinois
$318K 19,636 +19,636 New
Victory Capital Management
95
Victory Capital Management
Texas
$305K 18,877 -10,670 -36%
PAM
96
Panagora Asset Management
Massachusetts
$291K 17,983 -1,162 -6%
ASRS
97
Arizona State Retirement System
Arizona
$258K 15,952 +79 +0.5%
PNC Financial Services Group
98
PNC Financial Services Group
Pennsylvania
$246K 15,218 +9,020 +146%
MLICM
99
Metropolitan Life Insurance Company (MetLife)
New York
$236K 14,605 -1,229 -8%
AC
100
Allstate Corporation
Illinois
$221K 13,677 +1,540 +13%
2 3
4
5 6