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MRSN

Mersana Therapeutics

Delisted

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

120 hedge funds and large institutions have $230M invested in Mersana Therapeutics in 2024 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 44 increasing their positions, 36 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed

22% more repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 36

19% more call options, than puts

Call options by funds: $1.5M | Put options by funds: $1.26M

0.14% less ownership

Funds ownership: 3.87%3.73% (-0.14%)

9% less first-time investments, than exits

New positions opened: 20 | Existing positions closed: 22

2% less funds holding

Funds holding: 122120 (-2)

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

56% less capital invested

Capital invested by funds: $526M → $230M (-$297M)

Holders
120
Holders Change
-2
Holders Change %
-1.64%
% of All Funds
1.73%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
20
Increased
44
Reduced
36
Closed
22
Calls
$1.5M
Puts
$1.26M
Net Calls
+$244K
Net Calls Change
+$2.23M
Name Holding Trade Value Shares
Change
Change in
Stake
Marshall Wace
51
Marshall Wace
United Kingdom
$354K +$398K +5,504 +358%
Los Angeles Capital Management
52
Los Angeles Capital Management
California
$353K -$62.9K -870 -11%
Bank of America
53
Bank of America
North Carolina
$321K -$144K -1,992 -24%
Macquarie Group
54
Macquarie Group
Australia
$302K
SG Americas Securities
55
SG Americas Securities
New York
$279K +$304K +4,208 +314%
N
56
Nuveen
North Carolina
$248K
XT
57
XTX Topco
Cayman Islands
$244K +$254K +3,515 +262%
SCM
58
Superstring Capital Management
New York
$221K +$318K +4,403 New
Susquehanna International Group
59
Susquehanna International Group
Pennsylvania
$219K +$38.7K +535 +14%
ECM
60
ExodusPoint Capital Management
New York
$215K +$310K +4,287 New
T. Rowe Price Associates
61
T. Rowe Price Associates
Maryland
$200K +$55.4K +766 +24%
SPS
62
Susquehanna Portfolio Strategies
Pennsylvania
$189K
State of Wisconsin Investment Board
63
State of Wisconsin Investment Board
Wisconsin
$168K -$66.2K -916 -22%
JF
64
Jump Financial
Illinois
$162K +$186K +2,572 +396%
Acadian Asset Management
65
Acadian Asset Management
Massachusetts
$143K -$1.15M -15,897 -85%
MIM
66
MetLife Investment Management
New Jersey
$132K +$45.3K +627 +31%
QF
67
QVT Financial
New York
$126K
CF
68
Corebridge Financial
Texas
$123K +$176K +2,441 New
GCP
69
GSA Capital Partners
United Kingdom
$116K +$65.7K +908 +64%
Mirae Asset Global ETFs Holdings
70
Mirae Asset Global ETFs Holdings
Hong Kong
$114K +$165K +2,278 New
GCM
71
Graham Capital Management
Connecticut
$102K +$147K +2,039 New
AIM
72
Aigen Investment Management
New York
$101K +$73.9K +1,022 +104%
Wells Fargo
73
Wells Fargo
California
$95K +$27.9K +386 +26%
YIH
74
Y-Intercept (HK)
Hong Kong
$94K +$135K +1,871 New
Manulife (Manufacturers Life Insurance)
75
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$93.4K +$12.6K +174 +10%