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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
$52.8M
BCLSI
2
Bain Capital Life Sciences Investors
Massachusetts
$50.8M
ACA
3
Avoro Capital Advisors
New York
$44.2M
BlackRock
4
BlackRock
New York
$43.9M +$2.73M +16,154 +6%
State Street
5
State Street
Massachusetts
$34.3M +$12.1M +71,881 +44%
Vanguard Group
6
Vanguard Group
Pennsylvania
$26.1M +$480K +2,842 +2%
BG
7
Bellevue Group
Switzerland
$25.1M +$1.35M +8,000 +5%
RSCM
8
Rock Springs Capital Management
Maryland
$24M +$188K +1,114 +0.7%
SCM
9
Sarissa Capital Management
Connecticut
$23.4M
Millennium Management
10
Millennium Management
New York
$21.5M -$816K -4,826 -3%
CS
11
Candriam SCA
Luxembourg
$15.8M +$1.32M +7,800 +8%
Marshall Wace
12
Marshall Wace
United Kingdom
$14.8M +$13.5M +79,820 +378%
D.E. Shaw & Co
13
D.E. Shaw & Co
New York
$13.7M -$1.95M -11,531 -11%
AG
14
Artal Group
Luxembourg
$12.9M
Goldman Sachs
15
Goldman Sachs
New York
$11.8M -$2.63M -15,579 -16%
B
16
Braidwell
Connecticut
$10.9M +$12.6M +74,508 New
Morgan Stanley
17
Morgan Stanley
New York
$10.3M +$1.1M +6,536 +10%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$10M +$388K +2,298 +3%
Nuveen
19
Nuveen
North Carolina
$7.2M -$269K -1,589 -3%
ABG
20
Ally Bridge Group
New York
$6.98M +$1.76M +10,389 +28%
SCM
21
Silverarc Capital Management
Massachusetts
$6.68M +$988K +5,844 +15%
Deutsche Bank
22
Deutsche Bank
Germany
$6.63M +$80.1K +474 +1%
Two Sigma Advisers
23
Two Sigma Advisers
New York
$6.17M -$435K -2,576 -6%
ACP
24
Acuta Capital Partners
California
$5.57M +$6.42M +38,000 New
Northern Trust
25
Northern Trust
Illinois
$5.3M +$217K +1,286 +4%