Mersana Therapeutics
MRSN
MRSN
47 hedge funds and large institutions have $24.7M invested in Mersana Therapeutics in 2025 Q3 according to their latest regulatory filings, with 5 funds opening new positions, 16 increasing their positions, 21 reducing their positions, and 40 closing their positions.
New
Increased
Maintained
Reduced
Closed
more ownership
Funds ownership: →
more capital invested
Capital invested by funds: $ → $
less repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
less funds holding
Funds holding: →
88% less first-time investments, than exits
New positions opened: 5 | Existing positions closed: 40
Holders
47
Holding in Top 10
1
Calls
$61K
Puts
–
Top Buyers
| 1 | +$3.15M | |
| 2 | +$509K | |
| 3 | +$371K | |
| 4 |
SSA
Schonfeld Strategic Advisors
New York
|
+$362K |
| 5 |
Morgan Stanley
New York
|
+$264K |
Top Sellers
| 1 | -$1.23M | |
| 2 | -$464K | |
| 3 | -$424K | |
| 4 |
BlackRock
New York
|
-$422K |
| 5 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
-$395K |
