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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
$24.6M +$36.8M +774,588 New
VA
2
VR Adviser
New York
$14.4M +$21.5M +453,120 New
BCLSI
3
Bain Capital Life Sciences Investors
Massachusetts
$11M
BlackRock
4
BlackRock
New York
$10.1M +$16.5K +347 +0.1%
Vanguard Group
5
Vanguard Group
Pennsylvania
$7.86M +$877K +18,460 +8%
BG
6
Bellevue Group
Switzerland
$6.63M -$1.52K -32 -0%
Balyasny Asset Management
7
Balyasny Asset Management
Illinois
$6.4M +$383K +8,055 +4%
SCM
8
Silverarc Capital Management
Massachusetts
$6.35M +$7.61M +160,000 +400%
RSCM
9
Rock Springs Capital Management
Maryland
$4.32M
AAA
10
Affinity Asset Advisors
New York
$3.62M +$5.42M +114,000 New
PCM
11
Philosophy Capital Management
California
$2.98M +$4.45M +93,705 New
State Street
12
State Street
Massachusetts
$2.94M -$4.93M -103,696 -53%
CC
13
Commodore Capital
New York
$2.85M +$4.27M +89,775 New
Millennium Management
14
Millennium Management
New York
$2.77M +$581K +12,229 +16%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$2.74M +$289K +6,080 +8%
Walleye Capital
16
Walleye Capital
New York
$2.57M +$3.55M +74,663 +1,205%
BC
17
Boxer Capital
California
$2.54M +$1.9M +40,000 +100%
Citadel Advisors
18
Citadel Advisors
Florida
$2.05M +$3.07M +64,586 +2,152,867%
IC
19
Ikarian Capital
Texas
$2.01M +$2.91M +61,191 +3,060%
5VM
20
5AM Venture Management
California
$1.66M
WP
21
Woodline Partners
California
$1.65M +$2.48M +52,080 New
BBA
22
Baker Bros. Advisors
New York
$1.38M
ACM
23
Altium Capital Management
New York
$1.35M +$2.01M +42,365 New
Northern Trust
24
Northern Trust
Illinois
$1.31M -$130K -2,741 -6%
Morgan Stanley
25
Morgan Stanley
New York
$1.25M +$421K +8,861 +29%