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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
151 hedge funds and large institutions have $1.83B invested in Mersana Therapeutics in 2020 Q4 according to their latest regulatory filings, with 34 funds opening new positions, 54 increasing their positions, 45 reducing their positions, and 18 closing their positions.
New
Increased
Maintained
Reduced
Closed
129% more call options, than puts
Call options by funds: $12.1M | Put options by funds: $5.27M
89% more first-time investments, than exits
New positions opened: 34 | Existing positions closed: 18
44% more capital invested
Capital invested by funds: $1.28B → $1.83B (+$556M)
20% more repeat investments, than reductions
Existing positions increased: 54 | Existing positions reduced: 45
12% more funds holding
Funds holding: 135 → 151 (+16)
0.01% more ownership
Funds ownership: 4.02% → 4.03% (+0.01%)
25% less funds holding in top 10
Funds holding in top 10: 8 → 6 (-2)
Holders
151
Holders Change
+16
Holders Change %
+11.85%
% of All Funds
2.67%
Holding in Top 10
6
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-25%
% of All Funds
0.11%
New
34
Increased
54
Reduced
45
Closed
18
Calls
$12.1M
Puts
$5.27M
Net Calls
+$6.78M
Net Calls Change
+$946K
Top Buyers
| 1 |
BG
Bellevue Group
Kuesnacht,
Switzerland
|
+$42.8M |
| 2 |
Citadel Advisors
Miami,
Florida
|
+$34.2M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$32.8M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
+$19.2M |
| 5 |
BlackRock
New York
|
+$16.4M |
Top Sellers
| 1 |
NMC
NEA Management Company
Timonium,
Maryland
|
-$111M |
| 2 |
CCM
Consonance Capital Management
New York
|
-$46M |
| 3 |
Deutsche Bank
Frankfurt Am Main Ge,
Germany
|
-$14.2M |
| 4 |
APM
Avidity Partners Management
Dallas,
Texas
|
-$14.1M |
| 5 |
O
OrbiMed
New York
|
-$12.4M |
