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Mersana Therapeutics
MRSN

Overview Fund Activity

128 hedge funds and large institutions have $322M invested in Mersana Therapeutics in 2022 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 49 increasing their positions, 38 reducing their positions, and 15 closing their positions.

Holders
128
Holders Change
+6
Holders Change %
+4.92%
% of All Funds
2.03%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
21
Increased
49
Reduced
38
Closed
15
Calls
$42K
Puts
$372K
Net Calls
-$330K
Net Calls Change
+$608K

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$19.5M
2
O
2
OrbiMed
New York
$19.1M
3
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$8.34M
4
Bank of Montreal
4
Bank of Montreal
Ontario, Canada
$4.67M
5
BCLSI
5
Bain Capital Life Sciences Investors
Massachusetts
$26M

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$1.92M
2
State Street
2
State Street
Massachusetts
$5.4M
3
Assenagon Asset Management
3
Assenagon Asset Management
Luxembourg
$0
4
Point72 Asset Management
4
Point72 Asset Management
Connecticut
$0
5
Rafferty Asset Management
5
Rafferty Asset Management
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$30.4M 7,626,196 +146,967 +2%
ACA
2
Avoro Capital Advisors
New York
$27.1M 6,800,000 – –
BCLSI
3
Bain Capital Life Sciences Investors
Massachusetts
$26M 6,522,030 +1,136,363 +21%
Millennium Management
4
Millennium Management
New York
$19.5M 4,883,749 +4,247,665 +668%
O
5
OrbiMed
New York
$19.1M 4,788,900 +1,900,053 +66%
SCM
6
Sarissa Capital Management
Connecticut
$17.2M 4,299,297 – –
BG
7
Bellevue Group
Switzerland
$15.8M 3,954,000 -210,000 -5%
RSCM
8
Rock Springs Capital Management
Maryland
$15M 3,755,820 +506,870 +16%
Vanguard Group
9
Vanguard Group
Pennsylvania
$13.7M 3,435,270 -172,161 -5%
AG
10
Artal Group
Luxembourg
$8.78M 2,200,000 +1,000,000 +83%
Morgan Stanley
11
Morgan Stanley
New York
$8.66M 2,171,373 +942,766 +77%
D.E. Shaw & Co
12
D.E. Shaw & Co
New York
$8.34M 2,090,866 +1,445,963 +224%
CS
13
Candriam SCA
Luxembourg
$7.36M 1,844,823 -178,072 -9%
Goldman Sachs
14
Goldman Sachs
New York
$6.59M 1,650,752 +441,140 +36%
State Street
15
State Street
Massachusetts
$5.4M 1,352,150 -2,868,407 -68%
Two Sigma Advisers
16
Two Sigma Advisers
New York
$5.39M 1,349,500 +299,300 +28%
Two Sigma Investments
17
Two Sigma Investments
New York
$5.09M 1,275,634 +397,882 +45%
Bank of Montreal
18
Bank of Montreal
Ontario, Canada
$4.67M 1,157,635 +1,157,635 New
Geode Capital Management
19
Geode Capital Management
Massachusetts
$4.66M 1,166,807 +29,806 +3%
Deutsche Bank
20
Deutsche Bank
Germany
$4.61M 1,155,677 +1,078,665 +1,401%
CIBC Asset Management
21
CIBC Asset Management
Ontario, Canada
$4.21M 1,055,994 – –
Renaissance Technologies
22
Renaissance Technologies
New York
$3.67M 919,200 +576,600 +168%
DCMIC
23
Decheng Capital Management III (Cayman)
Cayman Islands
$3.61M 904,268 +904,268 New
RCP
24
Rho Capital Partners
New York
$3.18M 796,458 – –
Northern Trust
25
Northern Trust
Illinois
$2.89M 724,255 -23,621 -3%
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