MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
49 hedge funds and large institutions have $64.8M invested in Mersana Therapeutics in 2025 Q4 according to their latest regulatory filings, with 17 funds opening new positions, 3 increasing their positions, 23 reducing their positions, and 16 closing their positions.
New
Increased
Maintained
Reduced
Closed
more capital invested
Capital invested by funds: $ → $
more funds holding in top 10
Funds holding in top 10: →
more funds holding
Funds holding: →
more first-time investments, than exits
New positions opened: | Existing positions closed:
18.9% less ownership
Funds ownership: 63.8% → 44.91% (-19%)
87% less repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 23
Holders
49
Holding in Top 10
2
Calls
$1.74M
Puts
–
Top Buyers
| 1 | +$2.12M | |
| 2 | +$1.9M | |
| 3 | +$1.17M | |
| 4 |
RC
Rangeley Capital
New Canaan,
Connecticut
|
+$1.08M |
| 5 |
GF
Gabelli Funds
Rye,
New York
|
+$898K |
Top Sellers
| 1 | -$7.71M | |
| 2 | -$2.12M | |
| 3 | -$1.75M | |
| 4 |
SCM
Silverarc Capital Management
Boston,
Massachusetts
|
-$1.04M |
| 5 |
6CM
683 Capital Management
New York
|
-$776K |
