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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 %
Millennium Management
26
Millennium Management
New York
$1.14M 795,973 +536,190 +206%
SFM
27
Sphera Funds Management
Israel
$987K 690,272 +690,272 New
Renaissance Technologies
28
Renaissance Technologies
New York
$867K 606,285 +113,566 +23%
Wellington Management Group
29
Wellington Management Group
Massachusetts
$824K 576,148 -42,157 -7%
D.E. Shaw & Co
30
D.E. Shaw & Co
New York
$779K 544,463 -477,992 -47%
HP
31
HealthInvest Partners
Sweden
$765K 538,621 – –
GCP
32
GSA Capital Partners
United Kingdom
$727K 508,296 +236,522 +87%
Two Sigma Advisers
33
Two Sigma Advisers
New York
$641K 448,000 -38,800 -8%
WP
34
Woodline Partners
California
$623K 435,593 +2,041 +0.5%
Citadel Advisors
35
Citadel Advisors
Florida
$603K 421,360 -3,990,195 -90%
UOC
36
UBS O'Connor
Illinois
$586K 410,029 -160,000 -28%
BNP Paribas Financial Markets
37
BNP Paribas Financial Markets
France
$516K 361,147 +123,949 +52%
Qube Research & Technologies (QRT)
38
Qube Research & Technologies (QRT)
United Kingdom
$497K 347,415 -529,628 -60%
Bank of New York Mellon
39
Bank of New York Mellon
New York
$495K 346,189 -25,984 -7%
Verition Fund Management
40
Verition Fund Management
Connecticut
$482K 336,806 -966,443 -74%
Charles Schwab
41
Charles Schwab
California
$447K 312,623 – –
Fidelity Investments
42
Fidelity Investments
Massachusetts
$428K 299,324 +21,584 +8%
PAM
43
Panagora Asset Management
Massachusetts
$343K 239,685 +6,476 +3%
Nuveen Asset Management
44
Nuveen Asset Management
Illinois
$332K 232,223 +81,022 +54%
Two Sigma Investments
45
Two Sigma Investments
New York
$302K 210,876 -89,346 -30%
ECM
46
ExodusPoint Capital Management
New York
$278K 194,153 +194,153 New
AllianceBernstein
47
AllianceBernstein
Tennessee
$266K 186,060 – –
Federated Hermes
48
Federated Hermes
Pennsylvania
$263K 183,723 -21 -0%
Barclays
49
Barclays
United Kingdom
$262K 182,711 -311,805 -63%
EAM
50
Exome Asset Management
New York
$250K 172,924 -1,005,646 -85%
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