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MRSN

Mersana Therapeutics

Delisted

MRSN was delisted on the 5th of January, 2026.

Name Holding Trade Value Shares
Change
Change in
Stake
EC
1
EcoR1 Capital
California
$86.8M
VA
2
VR Adviser
New York
$50.7M
BCLSI
3
Bain Capital Life Sciences Investors
Massachusetts
$38.8M
BlackRock
4
BlackRock
New York
$36.3M +$1,000K +10,058 +3%
Vanguard Group
5
Vanguard Group
Pennsylvania
$28.1M +$146K +1,471 +0.6%
State Street
6
State Street
Massachusetts
$24.6M +$12.6M +126,721 +136%
NI
7
Nextech Invest
Switzerland
$17.3M -$8.44M -84,880 -35%
Balyasny Asset Management
8
Balyasny Asset Management
Illinois
$16.4M -$24M -241,686 -62%
Citadel Advisors
9
Citadel Advisors
Florida
$15.5M +$6.09M +61,282 +80%
RSCM
10
Rock Springs Capital Management
Maryland
$13.6M
SCM
11
Silverarc Capital Management
Massachusetts
$13.3M -$13.7M -138,053 -54%
Morgan Stanley
12
Morgan Stanley
New York
$13.2M -$4.74M -47,675 -29%
WP
13
Woodline Partners
California
$13.1M +$11.7M +117,385 New
CAM
14
Cormorant Asset Management
Massachusetts
$11.6M +$10.3M +104,000 New
Geode Capital Management
15
Geode Capital Management
Massachusetts
$10.6M +$243K +2,444 +3%
ACP
16
Acuta Capital Partners
California
$9.7M -$809K -8,135 -9%
Deutsche Bank
17
Deutsche Bank
Germany
$7.1M +$1.77M +17,842 +39%
Millennium Management
18
Millennium Management
New York
$6.75M -$7.5M -75,475 -56%
Renaissance Technologies
19
Renaissance Technologies
New York
$6.4M +$2.24M +22,484 +65%
JP Morgan Chase
20
JP Morgan Chase
New York
$6.39M +$5.36M +53,941 +1,711%
5VM
21
5AM Venture Management
California
$5.85M
D.E. Shaw & Co
22
D.E. Shaw & Co
New York
$5.48M +$2.21M +22,210 +83%
BBA
23
Baker Bros. Advisors
New York
$4.87M
SSA
24
Schonfeld Strategic Advisors
New York
$4.52M -$520K -5,230 -11%
AAA
25
Affinity Asset Advisors
New York
$4.48M