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Mersana Therapeutics
MRSN

Overview Fund Activity

152 hedge funds and large institutions have $590M invested in Mersana Therapeutics in 2022 Q4 according to their latest regulatory filings, with 20 funds opening new positions, 68 increasing their positions, 37 reducing their positions, and 20 closing their positions.

Holders
152
Holders Change
–
Holders Change %
0%
% of All Funds
2.45%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.05%
New
20
Increased
68
Reduced
37
Closed
20
Calls
$512K
Puts
$469K
Net Calls
+$43K
Net Calls Change
-$55K

Top Buyers

1
Marshall Wace
1
Marshall Wace
United Kingdom
$14.8M
2
B
2
Braidwell
Connecticut
$10.9M
3
State Street
3
State Street
Massachusetts
$34.3M
4
ACP
4
Acuta Capital Partners
California
$5.57M
5
CIBC Asset Management
5
CIBC Asset Management
Ontario, Canada
$3.32M

Top Sellers

1
Invesco
1
Invesco
Georgia
$195K
2
OM
2
Opaleye Management
Massachusetts
$2.7M
3
UOC
3
UBS O'Connor
Illinois
$0
4
Goldman Sachs
4
Goldman Sachs
New York
$11.8M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$13.7M
Name Market Value Shares Shares
Change 		Shares
Change %
O
1
OrbiMed
New York
$52.8M 9,011,437 – –
BCLSI
2
Bain Capital Life Sciences Investors
Massachusetts
$50.8M 8,663,673 – –
ACA
3
Avoro Capital Advisors
New York
$44.2M 7,550,000 – –
BlackRock
4
BlackRock
New York
$43.9M 7,491,929 +403,842 +6%
State Street
5
State Street
Massachusetts
$34.3M 5,856,061 +1,797,041 +44%
Vanguard Group
6
Vanguard Group
Pennsylvania
$26.1M 4,449,040 +71,041 +2%
BG
7
Bellevue Group
Switzerland
$25.1M 4,282,600 +200,000 +5%
RSCM
8
Rock Springs Capital Management
Maryland
$24M 4,103,803 +27,845 +0.7%
SCM
9
Sarissa Capital Management
Connecticut
$23.4M 3,997,010 – –
Millennium Management
10
Millennium Management
New York
$21.5M 3,663,527 -120,648 -3%
CS
11
Candriam SCA
Luxembourg
$15.8M 2,692,848 +195,000 +8%
Marshall Wace
12
Marshall Wace
United Kingdom
$14.8M 2,523,984 +1,995,516 +378%
D.E. Shaw & Co
13
D.E. Shaw & Co
New York
$13.7M 2,335,939 -288,284 -11%
AG
14
Artal Group
Luxembourg
$12.9M 2,200,000 – –
Goldman Sachs
15
Goldman Sachs
New York
$11.8M 2,014,496 -389,473 -16%
B
16
Braidwell
Connecticut
$10.9M 1,862,700 +1,862,700 New
Morgan Stanley
17
Morgan Stanley
New York
$10.3M 1,757,986 +163,412 +10%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$10M 1,707,470 +57,451 +3%
Nuveen Asset Management
19
Nuveen Asset Management
Illinois
$7.2M 1,229,407 -39,714 -3%
ABG
20
Ally Bridge Group
New York
$6.98M 1,191,271 +259,732 +28%
SCM
21
Silverarc Capital Management
Massachusetts
$6.68M 1,140,182 +146,109 +15%
Deutsche Bank
22
Deutsche Bank
Germany
$6.63M 1,130,704 +11,842 +1%
Two Sigma Advisers
23
Two Sigma Advisers
New York
$6.17M 1,053,300 -64,400 -6%
ACP
24
Acuta Capital Partners
California
$5.57M 950,000 +950,000 New
Northern Trust
25
Northern Trust
Illinois
$5.3M 904,376 +32,156 +4%
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