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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
O
1
OrbiMed
New York
$60.9M
BCLSI
2
Bain Capital Life Sciences Investors
Massachusetts
$58.6M
ACA
3
Avoro Capital Advisors
New York
$51M
BlackRock
4
BlackRock
New York
$47.9M -$11.7M -71,718 -20%
Vanguard Group
5
Vanguard Group
Pennsylvania
$29.6M -$2.31M -14,229 -8%
BG
6
Bellevue Group
Switzerland
$27.6M +$1.22M +7,496 +5%
RSCM
7
Rock Springs Capital Management
Maryland
$27.6M
State Street
8
State Street
Massachusetts
$27.4M +$15.9M +97,548 +151%
SCM
9
Sarissa Capital Management
Connecticut
$27M -$1.97M -12,092 -7%
Millennium Management
10
Millennium Management
New York
$25.6M -$3.89M -23,941 -14%
D.E. Shaw & Co
11
D.E. Shaw & Co
New York
$17.7M +$4.2M +25,852 +33%
CS
12
Candriam SCA
Luxembourg
$16.9M +$3.3M +20,292 +25%
Goldman Sachs
13
Goldman Sachs
New York
$16.3M +$3.53M +21,745 +29%
AG
14
Artal Group
Luxembourg
$14.9M
Geode Capital Management
15
Geode Capital Management
Massachusetts
$11.2M +$508K +3,123 +5%
Morgan Stanley
16
Morgan Stanley
New York
$10.8M +$136K +835 +1%
Nuveen
17
Nuveen
North Carolina
$8.58M +$5.38M +33,092 +187%
Deutsche Bank
18
Deutsche Bank
Germany
$7.56M -$38.2K -235 -0.5%
Two Sigma Advisers
19
Two Sigma Advisers
New York
$7.56M +$202K +1,240 +3%
SCM
20
Silverarc Capital Management
Massachusetts
$6.72M +$937K +5,763 +17%
ABG
21
Ally Bridge Group
New York
$6.3M +$6.06M +37,262 New
DCMIC
22
Decheng Capital Management III (Cayman)
Cayman Islands
$6.11M
OM
23
Opaleye Management
Massachusetts
$6.09M -$954K -5,868 -14%
Northern Trust
24
Northern Trust
Illinois
$5.9M +$102K +630 +2%
Renaissance Technologies
25
Renaissance Technologies
New York
$4.72M +$835K +5,140 +23%