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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
NI
1
Nextech Invest
Switzerland
$17.3M
EC
2
EcoR1 Capital
California
$16.2M -$16.6M -321,468 -42%
VA
3
VR Adviser
New York
$14.7M -$2.21M -42,808 -9%
BlackRock
4
BlackRock
New York
$13.2M +$1.21M +23,333 +7%
BCLSI
5
Bain Capital Life Sciences Investors
Massachusetts
$12.4M
Vanguard Group
6
Vanguard Group
Pennsylvania
$10.1M -$248K -4,797 -2%
NHAS
7
Novo Holdings A/S
Denmark
$6.08M +$8.79M +170,000 New
RSCM
8
Rock Springs Capital Management
Maryland
$4.91M +$796K +15,396 +13%
State Street
9
State Street
Massachusetts
$3.95M +$81.7K +1,580 +1%
BCM
10
Boxer Capital Management
California
$3.77M +$5.45M +105,400 New
JP Morgan Chase
11
JP Morgan Chase
New York
$3.62M +$379K +7,324 +8%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$3.49M +$60.1K +1,161 +1%
SSA
13
Schonfeld Strategic Advisors
New York
$3.03M -$215K -4,149 -5%
CCM
14
Catalio Capital Management
New York
$2.44M +$3.53M +68,201 New
5VM
15
5AM Venture Management
California
$1.87M
Morgan Stanley
16
Morgan Stanley
New York
$1.72M -$333K -6,435 -12%
ACP
17
Acuta Capital Partners
California
$1.6M -$165K -3,180 -7%
Jacobs Levy Equity Management
18
Jacobs Levy Equity Management
New Jersey
$1.59M +$246K +4,758 +12%
BBA
19
Baker Bros. Advisors
New York
$1.55M
OCA
20
Octagon Capital Advisors
New York
$1.42M
Bank of America
21
Bank of America
North Carolina
$1.36M -$74.6K -1,443 -4%
Northern Trust
22
Northern Trust
Illinois
$1.33M -$7.86K -152 -0.4%
6CM
23
683 Capital Management
New York
$1.29M +$1.48M +28,688 +392%
Deutsche Bank
24
Deutsche Bank
Germany
$1.2M -$1.57M -30,258 -47%
Goldman Sachs
25
Goldman Sachs
New York
$1.15M -$2.39M -46,274 -59%