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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
122 hedge funds and large institutions have $436M invested in Mersana Therapeutics in 2021 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 45 increasing their positions, 24 reducing their positions, and 15 closing their positions.
New
Increased
Maintained
Reduced
Closed
100% more first-time investments, than exits
New positions opened: 30 | Existing positions closed: 15
88% more repeat investments, than reductions
Existing positions increased: 45 | Existing positions reduced: 24
12% more funds holding
Funds holding: 109 → 122 (+13)
0.07% more ownership
Funds ownership: 3.83% → 3.9% (+0.07%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
33% less capital invested
Capital invested by funds: $647M → $436M (-$211M)
91% less call options, than puts
Call options by funds: $92K | Put options by funds: $1.03M
Holders
122
Holders Change
+13
Holders Change %
+11.93%
% of All Funds
1.88%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
30
Increased
45
Reduced
24
Closed
15
Calls
$92K
Puts
$1.03M
Net Calls
-$938K
Net Calls Change
-$588K
Top Buyers
| 1 |
BCLSI
Bain Capital Life Sciences Investors
Boston,
Massachusetts
|
+$13.2M |
| 2 |
Point72 Asset Management
Stamford,
Connecticut
|
+$6.37M |
| 3 |
D.E. Shaw & Co
New York
|
+$4.64M |
| 4 |
Morgan Stanley
New York
|
+$4.36M |
| 5 |
BNP Paribas Financial Markets
Paris,
France
|
+$4.25M |
Top Sellers
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
126
First Manhattan
New York
| – | -$2.06M | -8,723 | Closed |
|
|
AA
127
AlphaCentric Advisors
San Juan,
Puerto Rico
| – | -$618K | -2,620 | Closed |
|
128
TD Asset Management
Toronto,
Ontario, Canada
| – | -$425K | -1,802 | Closed |
|
|
BFM
129
Boothbay Fund Management
New York
| – | -$215K | -911 | Closed |
|
130
DekaBank Deutsche Girozentrale
Frankfurt,
Germany
| – | -$195K | -840 | Closed |
|
|
VF
131
Virtu Financial
New York
| – | -$177K | -751 | Closed |
|
|
AC
132
Allstate Corporation
Northbrook,
Illinois
| – | -$129K | -547 | Closed |
|
133
AQR Capital Management
Greenwich,
Connecticut
| – | -$116K | -493 | Closed |
|
|
FRM
134
Fox Run Management
Greenwich,
Connecticut
| – | -$111K | -471 | Closed |
|
|
PCM
135
Penserra Capital Management
Orinda,
California
| – | -$15K | -66 | Closed |
|
|
OSAM
136
O'Shaughnessy Asset Management
Stamford,
Connecticut
| – | -$6K | -26 | Closed |
|
137
Simplex Trading
Chicago,
Illinois
| – | -$1.36K | -7 | Closed |
|