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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 %
GTC
26
Ghost Tree Capital
New York
$7.28M 450,000 -150,000 -25%
CC
27
Commodore Capital
New York
$6.95M 429,228 +270,401 +170%
Invesco
28
Invesco
Georgia
$6.67M 412,170 -918,419 -69%
Two Sigma Investments
29
Two Sigma Investments
New York
$6.24M 385,570 +187,237 +94%
Charles Schwab
30
Charles Schwab
California
$5.99M 370,183 +11,931 +3%
ACP
31
Acuta Capital Partners
California
$5.79M 357,689 -336,311 -48%
CIBC Asset Management
32
CIBC Asset Management
Ontario, Canada
$5.3M 327,619 +327,619 New
Millennium Management
33
Millennium Management
New York
$4.66M 287,671 +287,671 New
Allianz Asset Management
34
Allianz Asset Management
Germany
$4.56M 281,983 +53,052 +23%
Bank of New York Mellon
35
Bank of New York Mellon
New York
$4.23M 261,511 -14,967 -5%
CM
36
Caption Management
Oklahoma
$3.98M 246,147 +246,147 New
Nuveen Asset Management
37
Nuveen Asset Management
Illinois
$3.92M 242,429 -153,614 -39%
Citigroup
38
Citigroup
New York
$3.72M 230,101 +216,886 +1,641%
Deutsche Bank
39
Deutsche Bank
Germany
$3.55M 219,398 -7,281 -3%
MWNA
40
Marshall Wace North America
New York
$3.49M 215,391 +131,698 +157%
Rafferty Asset Management
41
Rafferty Asset Management
New York
$3M 185,108 +154,028 +496%
Dimensional Fund Advisors
42
Dimensional Fund Advisors
Texas
$2.89M 178,843 -3,205 -2%
SCM
43
Sio Capital Management
New York
$2.54M 157,259 -27,700 -15%
D.E. Shaw & Co
44
D.E. Shaw & Co
New York
$2.49M 154,071 -389,804 -72%
SO
45
STRS Ohio
Ohio
$2.49M 153,742 -1,800 -1%
Marshall Wace
46
Marshall Wace
United Kingdom
$2.46M 152,110 +53,012 +53%
Macquarie Group
47
Macquarie Group
Australia
$2.45M 151,498 -459 -0.3%
JPMorgan Chase & Co
48
JPMorgan Chase & Co
New York
$2.3M 142,174 -31,821 -18%
Susquehanna International Group
49
Susquehanna International Group
Pennsylvania
$2.13M 131,379 +118,222 +899%
B
50
Bailard
California
$2.12M 131,000 -42,000 -24%
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