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Mersana Therapeutics
MRSN

Overview Fund Activity

125 hedge funds and large institutions have $526M invested in Mersana Therapeutics in 2024 Q1 according to their latest regulatory filings, with 38 funds opening new positions, 33 increasing their positions, 37 reducing their positions, and 19 closing their positions.

Holders
125
Holders Change
+19
Holders Change %
+17.92%
% of All Funds
1.81%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
38
Increased
33
Reduced
37
Closed
19
Calls
$366K
Puts
$2.35M
Net Calls
-$1.98M
Net Calls Change
-$1.94M

Top Buyers

1
State Street
1
State Street
Massachusetts
$24.6M
2
WP
2
Woodline Partners
California
$13.1M
3
CAM
3
Cormorant Asset Management
Massachusetts
$11.6M
4
Citadel Advisors
4
Citadel Advisors
Florida
$15.5M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$6.39M

Top Sellers

1
Balyasny Asset Management
1
Balyasny Asset Management
Illinois
$16.4M
2
Morgan Stanley
2
Morgan Stanley
New York
$13.2M
3
SCM
3
Silverarc Capital Management
Massachusetts
$13.3M
4
NI
4
Nextech Invest
Switzerland
$17.3M
5
Millennium Management
5
Millennium Management
New York
$6.75M
Name Market Value Shares Shares
Change 		Shares
Change %
EC
1
EcoR1 Capital
California
$86.8M 19,364,688 – –
VA
2
VR Adviser
New York
$50.7M 11,328,000 – –
BCLSI
3
Bain Capital Life Sciences Investors
Massachusetts
$38.8M 8,663,673 – –
BlackRock
4
BlackRock
New York
$36.3M 8,095,729 +251,447 +3%
Vanguard Group
5
Vanguard Group
Pennsylvania
$28.1M 6,274,370 +36,782 +0.6%
State Street
6
State Street
Massachusetts
$24.6M 5,497,443 +3,168,009 +136%
NI
7
Nextech Invest
Switzerland
$17.3M 3,856,321 -2,122,006 -35%
Balyasny Asset Management
8
Balyasny Asset Management
Illinois
$16.4M 3,655,998 -6,042,149 -62%
Citadel Advisors
9
Citadel Advisors
Florida
$15.5M 3,458,985 +1,532,054 +80%
RSCM
10
Rock Springs Capital Management
Maryland
$13.6M 3,046,782 – –
SCM
11
Silverarc Capital Management
Massachusetts
$13.3M 2,968,798 -3,451,338 -54%
Morgan Stanley
12
Morgan Stanley
New York
$13.2M 2,942,677 -5,326,415 -64%
WP
13
Woodline Partners
California
$13.1M 2,934,622 +2,934,622 New
CAM
14
Cormorant Asset Management
Massachusetts
$11.6M 2,600,000 +2,600,000 New
Geode Capital Management
15
Geode Capital Management
Massachusetts
$10.6M 2,358,221 +61,085 +3%
ACP
16
Acuta Capital Partners
California
$9.7M 2,164,628 -203,372 -9%
Deutsche Bank
17
Deutsche Bank
Germany
$7.1M 1,585,263 +446,031 +39%
Millennium Management
18
Millennium Management
New York
$6.75M 1,507,580 -1,886,860 -56%
Renaissance Technologies
19
Renaissance Technologies
New York
$6.4M 1,427,819 +562,088 +65%
JPMorgan Chase & Co
20
JPMorgan Chase & Co
New York
$6.39M 1,427,340 +1,348,517 +1,711%
5VM
21
5AM Venture Management
California
$5.85M 1,305,000 – –
D.E. Shaw & Co
22
D.E. Shaw & Co
New York
$5.48M 1,222,623 +555,240 +83%
BBA
23
Baker Bros. Advisors
New York
$4.87M 1,086,115 – –
SSA
24
Schonfeld Strategic Advisors
New York
$4.52M 1,008,658 -130,749 -11%
AAA
25
Affinity Asset Advisors
New York
$4.48M 1,000,000 – –
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