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Mersana Therapeutics
MRSN

Overview Fund Activity

152 hedge funds and large institutions have $562M invested in Mersana Therapeutics in 2022 Q3 according to their latest regulatory filings, with 40 funds opening new positions, 62 increasing their positions, 27 reducing their positions, and 14 closing their positions.

Holders
152
Holders Change
+26
Holders Change %
+20.63%
% of All Funds
2.63%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.07%
New
40
Increased
62
Reduced
27
Closed
14
Calls
$107K
Puts
$9K
Net Calls
+$98K
Net Calls Change
+$336K

Top Buyers

1
State Street
1
State Street
Massachusetts
$27.4M
2
ABG
2
Ally Bridge Group
New York
$6.3M
3
Nuveen Asset Management
3
Nuveen Asset Management
Illinois
$8.58M
4
HIM
4
Hillsdale Investment Management
Ontario, Canada
$4.67M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$17.7M

Top Sellers

1
WP
1
Woodline Partners
California
$0
2
BlackRock
2
BlackRock
New York
$47.9M
3
Millennium Management
3
Millennium Management
New York
$25.6M
4
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$406K
5
Vanguard Group
5
Vanguard Group
Pennsylvania
$29.6M
Name Market Value Shares Shares
Change 		Shares
Change %
BCLSI
1
Bain Capital Life Sciences Investors
Massachusetts
$58.6M 8,663,673 – –
ACA
2
Avoro Capital Advisors
New York
$51M 7,550,000 – –
BlackRock
3
BlackRock
New York
$47.9M 7,088,087 -1,792,932 -20%
Vanguard Group
4
Vanguard Group
Pennsylvania
$29.6M 4,377,999 -355,732 -8%
BG
5
Bellevue Group
Switzerland
$27.6M 4,082,600 +187,400 +5%
RSCM
6
Rock Springs Capital Management
Maryland
$27.6M 4,075,958 – –
State Street
7
State Street
Massachusetts
$27.4M 4,059,020 +2,438,690 +151%
SCM
8
Sarissa Capital Management
Connecticut
$27M 3,997,010 -302,287 -7%
Millennium Management
9
Millennium Management
New York
$25.6M 3,784,175 -598,526 -14%
D.E. Shaw & Co
10
D.E. Shaw & Co
New York
$17.7M 2,624,223 +646,293 +33%
CS
11
Candriam SCA
Luxembourg
$16.9M 2,497,848 +507,289 +25%
Goldman Sachs
12
Goldman Sachs
New York
$16.3M 2,403,969 +543,622 +29%
AG
13
Artal Group
Luxembourg
$14.9M 2,200,000 – –
Geode Capital Management
14
Geode Capital Management
Massachusetts
$11.2M 1,650,019 +78,079 +5%
Morgan Stanley
15
Morgan Stanley
New York
$10.8M 1,594,574 +20,870 +1%
Nuveen Asset Management
16
Nuveen Asset Management
Illinois
$8.58M 1,269,121 +827,287 +187%
Deutsche Bank
17
Deutsche Bank
Germany
$7.56M 1,118,862 -5,853 -0.5%
Two Sigma Advisers
18
Two Sigma Advisers
New York
$7.56M 1,117,700 +31,000 +3%
SCM
19
Silverarc Capital Management
Massachusetts
$6.72M 994,073 +144,073 +17%
ABG
20
Ally Bridge Group
New York
$6.3M 931,539 +931,539 New
DCMIC
21
Decheng Capital Management III (Cayman)
Cayman Islands
$6.11M 904,268 – –
OM
22
Opaleye Management
Massachusetts
$6.09M 900,300 -146,700 -14%
Northern Trust
23
Northern Trust
Illinois
$5.9M 872,220 +15,734 +2%
Renaissance Technologies
24
Renaissance Technologies
New York
$4.72M 698,819 +128,500 +23%
HIM
25
Hillsdale Investment Management
Ontario, Canada
$4.67M 690,500 +690,500 New
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