We are live on
!
Find out more
MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
128 hedge funds and large institutions have $322M invested in Mersana Therapeutics in 2022 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 49 increasing their positions, 37 reducing their positions, and 15 closing their positions.
New
Increased
Maintained
Reduced
Closed
40% more first-time investments, than exits
New positions opened: 21 | Existing positions closed: 15
32% more repeat investments, than reductions
Existing positions increased: 49 | Existing positions reduced: 37
5% more funds holding
Funds holding: 122 → 128 (+6)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
0.03% less ownership
Funds ownership: 3.9% → 3.88% (-0.03%)
26% less capital invested
Capital invested by funds: $436M → $322M (-$114M)
89% less call options, than puts
Call options by funds: $42K | Put options by funds: $372K
Holders
128
Holders Change
+6
Holders Change %
+4.92%
% of All Funds
2.02%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
21
Increased
49
Reduced
37
Closed
15
Calls
$42K
Puts
$372K
Net Calls
-$330K
Net Calls Change
+$608K
Top Buyers
| 1 |
Millennium Management
New York
|
+$19.8M |
| 2 |
O
OrbiMed
New York
|
+$8.88M |
| 3 |
D.E. Shaw & Co
New York
|
+$6.76M |
| 4 |
Bank of Montreal
Toronto,
Ontario, Canada
|
+$5.41M |
| 5 |
BCLSI
Bain Capital Life Sciences Investors
Boston,
Massachusetts
|
+$5.31M |
Top Sellers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$21.2M |
| 2 |
State Street
Boston,
Massachusetts
|
-$13.4M |
| 3 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$6.68M |
| 4 |
Point72 Asset Management
Stamford,
Connecticut
|
-$5.09M |
| 5 |
Rafferty Asset Management
New York
|
-$1.73M |
