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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
$135M +$2.31M +4,570 +2%
ACA
2
Avoro Capital Advisors
New York
$127M +$6.06M +12,000 +5%
NMC
3
NEA Management Company
Maryland
$111M -$40.4M -80,000 -25%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$70.6M +$18.3M +36,188 +31%
CCM
5
Consonance Capital Management
New York
$64.6M -$49.1M -97,126 -41%
BCLSI
6
Bain Capital Life Sciences Investors
Massachusetts
$64.2M
State Street
7
State Street
Massachusetts
$54.9M +$27.9M +55,259 +88%
Vanguard Group
8
Vanguard Group
Pennsylvania
$52.9M -$481K -951 -0.8%
SCM
9
Sarissa Capital Management
Connecticut
$52.8M +$5.4M +10,680 +10%
RSCM
10
Rock Springs Capital Management
Maryland
$35.1M +$141K +280 +0.4%
T. Rowe Price Associates
11
T. Rowe Price Associates
Maryland
$34M +$21.9M +43,336 +145%
Alkeon Capital Management
12
Alkeon Capital Management
New York
$28.9M +$31.3M +62,000 New
PAMU
13
Pictet Asset Management (UK)
United Kingdom
$25.7M +$7.18M +14,204 +35%
O
14
OrbiMed
New York
$24.7M -$11.7M -23,246 -30%
Invesco
15
Invesco
Georgia
$20.8M +$2.72M +5,385 +14%
GTC
16
Ghost Tree Capital
New York
$19.6M +$8.59M +17,000 +68%
Point72 Asset Management
17
Point72 Asset Management
Connecticut
$19.4M +$21.1M +41,757 New
AG
18
Artal Group
Luxembourg
$18.6M +$4.04M +8,000 +25%
Janus Henderson Group
19
Janus Henderson Group
$16.9M +$17.2M +34,059 +1,484%
Fidelity Investments
20
Fidelity Investments
Massachusetts
$16.4M -$3.77M -7,459 -18%
Deutsche Bank
21
Deutsche Bank
Germany
$16.1M +$16.3M +32,272 +1,383%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$15.4M +$1.37M +2,709 +9%
RCP
23
Rho Capital Partners
New York
$14.8M
APM
24
Avidity Partners Management
Texas
$14.1M -$6.31M -12,488 -29%
D.E. Shaw & Co
25
D.E. Shaw & Co
New York
$14M -$5.54M -10,969 -27%