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Mersana Therapeutics

Delisted

MRSN was delisted on the 5th of January, 2026.

Name Holding Trade Value Shares
Change
Change in
Stake
PIM
26
Platinum Investment Management
Australia
$3.08M +$2.99M +15,383 +347%
Charles Schwab
27
Charles Schwab
California
$3.04M +$44.4K +228 +1%
Walleye Capital
28
Walleye Capital
New York
$2.46M +$2.14M +11,018 +231%
Renaissance Technologies
29
Renaissance Technologies
New York
$2.13M +$2.67M +13,704 New
Citadel Advisors
30
Citadel Advisors
Florida
$1.92M +$2.04M +10,466 +558%
Nuveen
31
Nuveen
North Carolina
$1.82M +$130K +670 +6%
Hudson Bay Capital Management
32
Hudson Bay Capital Management
Connecticut
$1.8M +$895K +4,600 +66%
Bank of New York Mellon
33
Bank of New York Mellon
New York
$1.74M +$71K +365 +3%
Rafferty Asset Management
34
Rafferty Asset Management
New York
$1.73M +$909K +4,671 +72%
Allianz Asset Management
35
Allianz Asset Management
Germany
$1.71M +$326K +1,677 +18%
FAM
36
Fred Alger Management
New York
$1.42M +$1.78M +9,140 New
Citigroup
37
Citigroup
New York
$1.41M +$885K +4,547 +100%
Federated Hermes
38
Federated Hermes
Pennsylvania
$1.26M +$1.58M +8,103 New
Dimensional Fund Advisors
39
Dimensional Fund Advisors
Texas
$1.21M +$54.5K +280 +4%
UBS Group
40
UBS Group
Switzerland
$1.13M +$723K +3,718 +105%
Macquarie Group
41
Macquarie Group
Australia
$960K -$18.3K -94 -1%
Axa
42
Axa
France
$921K +$1.15M +5,920 New
DCM
43
DAFNA Capital Management
California
$872K – – –
Swiss National Bank
44
Swiss National Bank
Switzerland
$786K +$26.5K +136 +3%
Susquehanna International Group
45
Susquehanna International Group
Pennsylvania
$759K +$219K +1,128 +30%
Fidelity Investments
46
Fidelity Investments
Massachusetts
$757K -$905K -4,654 -49%
HF
47
HRT Financial
New York
$727K +$910K +4,677 New
T. Rowe Price Associates
48
T. Rowe Price Associates
Maryland
$712K -$6.74M -34,658 -88%
CSS
49
Cubist Systematic Strategies
Connecticut
$699K +$874K +4,492 New
PP
50
PDT Partners
New York
$695K +$632K +3,247 +266%