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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
83 hedge funds and large institutions have $22.9M invested in Mersana Therapeutics in 2025 Q2 according to their latest regulatory filings, with 14 funds opening new positions, 23 increasing their positions, 30 reducing their positions, and 39 closing their positions.
New
Increased
Maintained
Reduced
Closed
250% more call options, than puts
Call options by funds: $14K | Put options by funds: $4K
0.33% less ownership
Funds ownership: 2.82% → 2.48% (-0.33%)
23% less funds holding
Funds holding: 108 → 83 (-25)
23% less repeat investments, than reductions
Existing positions increased: 23 | Existing positions reduced: 30
24% less capital invested
Capital invested by funds: $30.2M → $22.9M (-$7.31M)
64% less first-time investments, than exits
New positions opened: 14 | Existing positions closed: 39
Holders
83
Holders Change
-25
Holders Change %
-23.15%
% of All Funds
1.09%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
14
Increased
23
Reduced
30
Closed
39
Calls
$14K
Puts
$4K
Net Calls
+$10K
Net Calls Change
+$3K
Top Buyers
| 1 |
Millennium Management
New York
|
+$735K |
| 2 |
Renaissance Technologies
New York
|
+$707K |
| 3 |
LM
Luminus Management
Houston,
Texas
|
+$365K |
| 4 |
Goldman Sachs
New York
|
+$298K |
| 5 |
Two Sigma Investments
New York
|
+$271K |
Top Sellers
| 1 |
BlackRock
New York
|
-$1.6M |
| 2 |
VA
VR Adviser
New York
|
-$1.23M |
| 3 |
State Street
Boston,
Massachusetts
|
-$756K |
| 4 |
SSA
Schonfeld Strategic Advisors
New York
|
-$682K |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
-$490K |
