We are live on ! Find out more
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
$213M +$16.4M +29,432 +10%
ACA
2
Avoro Capital Advisors
New York
$181M
Wellington Management Group
3
Wellington Management Group
Massachusetts
$124M +$19.2M +34,490 +23%
BCLSI
4
Bain Capital Life Sciences Investors
Massachusetts
$91.7M
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$87.9M +$32.8M +59,029 +81%
State Street
6
State Street
Massachusetts
$84M +$4.63M +8,318 +7%
Vanguard Group
7
Vanguard Group
Pennsylvania
$81.7M +$5.07M +9,113 +8%
SCM
8
Sarissa Capital Management
Connecticut
$77.9M +$2M +3,600 +3%
RSCM
9
Rock Springs Capital Management
Maryland
$54.9M +$3.96M +7,130 +9%
Citadel Advisors
10
Citadel Advisors
Florida
$52M +$34.2M +61,473 +367%
BG
11
Bellevue Group
Switzerland
$51.3M +$42.8M +77,040 New
Alkeon Capital Management
12
Alkeon Capital Management
New York
$48M +$5.67M +10,193 +16%
PAMU
13
Pictet Asset Management (UK)
United Kingdom
$45.8M +$7.55M +13,582 +25%
CCM
14
Consonance Capital Management
New York
$37.3M -$46M -82,659 -60%
Invesco
15
Invesco
Georgia
$35.4M +$4.74M +8,527 +19%
AG
16
Artal Group
Luxembourg
$31.9M +$4.45M +8,000 +20%
CS
17
Candriam SCA
Luxembourg
$29.9M +$11.9M +21,378 +91%
Goldman Sachs
18
Goldman Sachs
New York
$27.7M +$9.86M +17,731 +74%
Fidelity Investments
19
Fidelity Investments
Massachusetts
$26.2M +$2.38M +4,277 +12%
Point72 Asset Management
20
Point72 Asset Management
Connecticut
$24.5M -$2.71M -4,877 -12%
Janus Henderson Group
21
Janus Henderson Group
$24.5M +$228K +410 +1%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$22.9M +$675K +1,213 +4%
RCP
23
Rho Capital Partners
New York
$21.2M
O
24
OrbiMed
New York
$20.6M -$12.4M -22,220 -42%
ACP
25
Acuta Capital Partners
California
$18.5M +$589K +1,060 +4%