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Mersana Therapeutics
MRSN

Overview Fund Activity

132 hedge funds and large institutions have $149M invested in Mersana Therapeutics in 2024 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 33 increasing their positions, 40 reducing their positions, and 12 closing their positions.

Holders
132
Holders Change
+16
Holders Change %
+13.79%
% of All Funds
1.76%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
30
Increased
33
Reduced
40
Closed
12
Calls
$356K
Puts
$2.03M
Net Calls
-$1.67M
Net Calls Change
-$1.21M

Top Buyers

1
NHAS
1
Novo Holdings A/S
Denmark
$6.08M
2
BCM
2
Boxer Capital Management
California
$3.77M
3
CCM
3
Catalio Capital Management
New York
$2.44M
4
6CM
4
683 Capital Management
New York
$1.29M
5
SFM
5
Sphera Funds Management
Israel
$987K

Top Sellers

1
EC
1
EcoR1 Capital
California
$16.2M
2
Citadel Advisors
2
Citadel Advisors
Florida
$603K
3
BC
3
Boxer Capital
California
$0
4
SCM
4
Silverarc Capital Management
Massachusetts
$0
5
Goldman Sachs
5
Goldman Sachs
New York
$1.15M
Name Market Value Shares Shares
Change 		Shares
Change %
NI
1
Nextech Invest
Switzerland
$17.3M 12,067,246 – –
EC
2
EcoR1 Capital
California
$16.2M 11,328,000 -8,036,688 -42%
VA
3
VR Adviser
New York
$14.7M 10,257,790 -1,070,210 -9%
BlackRock
4
BlackRock
New York
$13.2M 9,205,182 +583,321 +7%
BCLSI
5
Bain Capital Life Sciences Investors
Massachusetts
$12.4M 8,663,673 – –
Vanguard Group
6
Vanguard Group
Pennsylvania
$10.1M 7,057,516 -119,942 -2%
NHAS
7
Novo Holdings A/S
Denmark
$6.08M 4,250,000 +4,250,000 New
RSCM
8
Rock Springs Capital Management
Maryland
$4.91M 3,431,684 +384,902 +13%
State Street
9
State Street
Massachusetts
$3.95M 2,764,895 +39,501 +1%
BCM
10
Boxer Capital Management
California
$3.77M 2,635,000 +2,635,000 New
JPMorgan Chase & Co
11
JPMorgan Chase & Co
New York
$3.62M 2,534,447 +183,088 +8%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$3.49M 2,442,250 +29,035 +1%
SSA
13
Schonfeld Strategic Advisors
New York
$3.03M 2,119,586 -103,722 -5%
CCM
14
Catalio Capital Management
New York
$2.44M 1,705,036 +1,705,036 New
5VM
15
5AM Venture Management
California
$1.87M 1,305,000 – –
Morgan Stanley
16
Morgan Stanley
New York
$1.72M 1,203,356 -160,860 -12%
ACP
17
Acuta Capital Partners
California
$1.6M 1,120,500 -79,500 -7%
Jacobs Levy Equity Management
18
Jacobs Levy Equity Management
New Jersey
$1.59M 1,111,998 +118,952 +12%
BBA
19
Baker Bros. Advisors
New York
$1.55M 1,086,115 – –
OCA
20
Octagon Capital Advisors
New York
$1.42M 992,000 – –
Bank of America
21
Bank of America
North Carolina
$1.36M 953,952 -36,084 -4%
Northern Trust
22
Northern Trust
Illinois
$1.33M 929,708 -3,783 -0.4%
6CM
23
683 Capital Management
New York
$1.29M 900,000 +717,207 +392%
Deutsche Bank
24
Deutsche Bank
Germany
$1.2M 839,724 -756,449 -47%
Goldman Sachs
25
Goldman Sachs
New York
$1.15M 802,366 -1,156,870 -59%
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