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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
128 hedge funds and large institutions have $149M invested in Mersana Therapeutics in 2024 Q4 according to their latest regulatory filings, with 28 funds opening new positions, 33 increasing their positions, 40 reducing their positions, and 11 closing their positions.
New
Increased
Maintained
Reduced
Closed
155% more first-time investments, than exits
New positions opened: 28 | Existing positions closed: 11
13% more funds holding
Funds holding: 113 → 128 (+15)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.41% less ownership
Funds ownership: 3.78% → 3.38% (-0.41%)
18% less repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 40
32% less capital invested
Capital invested by funds: $219M → $149M (-$70.3M)
82% less call options, than puts
Call options by funds: $356K | Put options by funds: $2.02M
Holders
128
Holders Change
+15
Holders Change %
+13.27%
% of All Funds
1.69%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
28
Increased
33
Reduced
40
Closed
11
Calls
$356K
Puts
$2.02M
Net Calls
-$1.67M
Net Calls Change
-$1.21M
Top Buyers
| 1 |
NHAS
Novo Holdings A/S
Hellerup,
Denmark
|
+$8.79M |
| 2 |
6CM
683 Capital Management
New York
|
+$1.48M |
| 3 |
SFM
Sphera Funds Management
Tel Aviv,
Israel
|
+$1.43M |
| 4 |
BlackRock
New York
|
+$1.21M |
| 5 |
Millennium Management
New York
|
+$1.11M |
Top Sellers
| 1 |
EC
EcoR1 Capital
San Francisco,
California
|
-$16.6M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$8.26M |
| 3 |
SCM
Silverarc Capital Management
Boston,
Massachusetts
|
-$3M |
| 4 |
Goldman Sachs
New York
|
-$2.39M |
| 5 |
VA
VR Adviser
New York
|
-$2.21M |
