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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
BlackRock
1
BlackRock
New York
$83.1M -$180K -615 -0.2%
ACA
2
Avoro Capital Advisors
New York
$64.1M
Wellington Management Group
3
Wellington Management Group
Massachusetts
$56.6M -$10.2M -34,798 -13%
SCM
4
Sarissa Capital Management
Connecticut
$40.5M +$3.43M +11,748 +7%
BG
5
Bellevue Group
Switzerland
$40.2M +$15.4M +52,800 +45%
State Street
6
State Street
Massachusetts
$38.6M +$9.86M +33,747 +26%
BCLSI
7
Bain Capital Life Sciences Investors
Massachusetts
$34.9M
Vanguard Group
8
Vanguard Group
Pennsylvania
$34.7M +$5.84M +20,001 +16%
RSCM
9
Rock Springs Capital Management
Maryland
$28.5M +$2.05M +7,003 +6%
O
10
OrbiMed
New York
$27.2M +$1.04M +3,544 +3%
PAMS
11
Pictet Asset Management (Switzerland)
Switzerland
$21.1M +$26.2M +89,515 New
CS
12
Candriam SCA
Luxembourg
$19.1M +$584K +2,000 +3%
Alkeon Capital Management
13
Alkeon Capital Management
New York
$17M -$75.1K -257 -0.4%
AG
14
Artal Group
Luxembourg
$11.3M
Goldman Sachs
15
Goldman Sachs
New York
$10.8M +$6.64M +22,737 +99%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$10M +$145K +496 +1%
CIBC Asset Management
17
CIBC Asset Management
Ontario, Canada
$9.98M +$3.51K +12 +0%
T. Rowe Price Associates
18
T. Rowe Price Associates
Maryland
$9.25M -$15.6M -53,474 -58%
Assenagon Asset Management
19
Assenagon Asset Management
Luxembourg
$8.52M -$1.6M -5,483 -13%
RCP
20
Rho Capital Partners
New York
$7.51M
Northern Trust
21
Northern Trust
Illinois
$6.57M +$168K +574 +2%
Morgan Stanley
22
Morgan Stanley
New York
$6.3M +$6.33M +21,669 +429%
Two Sigma Advisers
23
Two Sigma Advisers
New York
$5.94M +$729K +2,496 +11%
Charles Schwab
24
Charles Schwab
California
$4.55M +$816K +2,793 +17%
Marshall Wace
25
Marshall Wace
United Kingdom
$3.63M +$4.26M +14,595 +1,838%