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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
122 hedge funds and large institutions have $526M invested in Mersana Therapeutics in 2024 Q1 according to their latest regulatory filings, with 36 funds opening new positions, 33 increasing their positions, 37 reducing their positions, and 19 closing their positions.
New
Increased
Maintained
Reduced
Closed
93% more capital invested
Capital invested by funds: $273M → $526M (+$254M)
89% more first-time investments, than exits
New positions opened: 36 | Existing positions closed: 19
16% more funds holding
Funds holding: 105 → 122 (+17)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
0.02% less ownership
Funds ownership: 3.9% → 3.87% (-0.02%)
11% less repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 37
84% less call options, than puts
Call options by funds: $366K | Put options by funds: $2.35M
Holders
122
Holders Change
+17
Holders Change %
+16.19%
% of All Funds
1.76%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
36
Increased
33
Reduced
37
Closed
19
Calls
$366K
Puts
$2.35M
Net Calls
-$1.98M
Net Calls Change
-$1.94M
Top Buyers
| 1 |
State Street
Boston,
Massachusetts
|
+$12.6M |
| 2 |
WP
Woodline Partners
San Francisco,
California
|
+$11.7M |
| 3 |
CAM
Cormorant Asset Management
Boston,
Massachusetts
|
+$10.3M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$6.09M |
| 5 |
JP Morgan Chase
New York
|
+$5.36M |
Top Sellers
| 1 |
Balyasny Asset Management
Chicago,
Illinois
|
-$24M |
| 2 |
Morgan Stanley
New York
|
-$21.2M |
| 3 |
SCM
Silverarc Capital Management
Boston,
Massachusetts
|
-$13.7M |
| 4 |
NI
Nextech Invest
Zurich,
Switzerland
|
-$8.44M |
| 5 |
Millennium Management
New York
|
-$7.5M |
