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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
82 hedge funds and large institutions have $234M invested in Mersana Therapeutics in 2020 Q1 according to their latest regulatory filings, with 26 funds opening new positions, 33 increasing their positions, 13 reducing their positions, and 10 closing their positions.
New
Increased
Maintained
Reduced
Closed
160% more first-time investments, than exits
New positions opened: 26 | Existing positions closed: 10
154% more repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 13
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
19% more funds holding
Funds holding: 69 → 82 (+13)
15% more capital invested
Capital invested by funds: $203M → $234M (+$30.8M)
0.57% more ownership
Funds ownership: 2.96% → 3.53% (+0.57%)
100% less call options, than puts
Call options by funds: $0 | Put options by funds: $58K
Holders
82
Holders Change
+13
Holders Change %
+18.84%
% of All Funds
1.81%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.09%
New
26
Increased
33
Reduced
13
Closed
10
Calls
–
Puts
$58K
Net Calls
-$58K
Net Calls Change
-$58K
Top Buyers
| 1 |
GTC
Ghost Tree Capital
New York
|
+$8.39M |
| 2 |
BI
BVF Inc
San Francisco,
California
|
+$8.33M |
| 3 |
ACP
Acuta Capital Partners
Redwood City,
California
|
+$5.78M |
| 4 |
BlackRock
New York
|
+$5.74M |
| 5 |
Axa
Paris,
France
|
+$2.51M |
Top Sellers
| 1 |
O
OrbiMed
New York
|
-$5.08M |
| 2 |
Millennium Management
New York
|
-$2.03M |
| 3 |
JP Morgan Chase
New York
|
-$1.62M |
| 4 |
OAM
Oxford Asset Management
Oxford,
United Kingdom
|
-$1.16M |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
-$943K |
