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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
105 hedge funds and large institutions have $273M invested in Mersana Therapeutics in 2023 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 33 increasing their positions, 34 reducing their positions, and 40 closing their positions.
New
Increased
Maintained
Reduced
Closed
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
89% more capital invested
Capital invested by funds: $144M → $273M (+$128M)
0.12% more ownership
Funds ownership: 3.78% → 3.9% (+0.12%)
3% less repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 34
4% less call options, than puts
Call options by funds: $962K | Put options by funds: $1M
18% less funds holding
Funds holding: 128 → 105 (-23)
55% less first-time investments, than exits
New positions opened: 18 | Existing positions closed: 40
Holders
105
Holders Change
-23
Holders Change %
-17.97%
% of All Funds
1.53%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
18
Increased
33
Reduced
34
Closed
40
Calls
$962K
Puts
$1M
Net Calls
-$41K
Net Calls Change
-$1.53M
Top Buyers
| 1 |
Morgan Stanley
New York
|
+$11.7M |
| 2 |
NI
Nextech Invest
Zurich,
Switzerland
|
+$9.62M |
| 3 |
Balyasny Asset Management
Chicago,
Illinois
|
+$7.49M |
| 4 |
ACP
Acuta Capital Partners
Redwood City,
California
|
+$3.65M |
| 5 |
SCM
Silverarc Capital Management
Boston,
Massachusetts
|
+$2.29M |
Top Sellers
| 1 |
BG
Bellevue Group
Kuesnacht,
Switzerland
|
-$6.63M |
| 2 |
AAA
Affinity Asset Advisors
New York
|
-$2.98M |
| 3 |
CC
Commodore Capital
New York
|
-$2.85M |
| 4 |
Walleye Capital
New York
|
-$2.57M |
| 5 |
BC
Boxer Capital
San Diego,
California
|
-$2.54M |
