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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
48 hedge funds and large institutions have $70M invested in Mersana Therapeutics in 2018 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 12 increasing their positions, 15 reducing their positions, and 6 closing their positions.
New
Increased
Maintained
Reduced
Closed
50% more first-time investments, than exits
New positions opened: 9 | Existing positions closed: 6
4% more funds holding
Funds holding: 46 → 48 (+2)
0.46% less ownership
Funds ownership: 3.42% → 2.96% (-0.46%)
20% less repeat investments, than reductions
Existing positions increased: 12 | Existing positions reduced: 15
65% less capital invested
Capital invested by funds: $198M → $70M (-$128M)
67% less funds holding in top 10
Funds holding in top 10: 3 → 1 (-2)
Holders
48
Holders Change
+2
Holders Change %
+4.35%
% of All Funds
1.07%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.02%
New
9
Increased
12
Reduced
15
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–
Top Buyers
| 1 |
Point72 Asset Management
Stamford,
Connecticut
|
+$3.48M |
| 2 |
JG
Jefferies Group
New York
|
+$2.13M |
| 3 |
ACH
ArrowMark Colorado Holdings
Denver,
Colorado
|
+$1.18M |
| 4 |
JP Morgan Chase
New York
|
+$674K |
| 5 |
HP
Hikari Power
Tokyo,
Japan
|
+$540K |
Top Sellers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$11.2M |
| 2 |
EC
EcoR1 Capital
San Francisco,
California
|
-$4.96M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
-$2.12M |
| 4 |
Millennium Management
New York
|
-$2.06M |
| 5 |
BlackRock
New York
|
-$1.54M |
