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MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
130 hedge funds and large institutions have $1.53B invested in Mersana Therapeutics in 2020 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 50 increasing their positions, 23 reducing their positions, and 6 closing their positions.
New
Increased
Maintained
Reduced
Closed
800% more first-time investments, than exits
New positions opened: 54 | Existing positions closed: 6
555% more capital invested
Capital invested by funds: $234M → $1.53B (+$1.3B)
491% more call options, than puts
Call options by funds: $7.97M | Put options by funds: $1.35M
125% more funds holding in top 10
Funds holding in top 10: 4 → 9 (+5)
117% more repeat investments, than reductions
Existing positions increased: 50 | Existing positions reduced: 23
59% more funds holding
Funds holding: 82 → 130 (+48)
0.38% more ownership
Funds ownership: 3.53% → 3.91% (+0.38%)
Holders
130
Holders Change
+48
Holders Change %
+58.54%
% of All Funds
2.67%
Holding in Top 10
9
Holding in Top 10 Change
+5
Holding in Top 10 Change %
+125%
% of All Funds
0.18%
New
54
Increased
50
Reduced
23
Closed
6
Calls
$7.97M
Puts
$1.35M
Net Calls
+$6.62M
Net Calls Change
+$6.68M
Top Buyers
| 1 |
ACA
Avoro Capital Advisors
New York
|
+$88.8M |
| 2 |
CCM
Consonance Capital Management
New York
|
+$80.5M |
| 3 |
BlackRock
New York
|
+$52.6M |
| 4 |
BCLSI
Bain Capital Life Sciences Investors
Boston,
Massachusetts
|
+$47.1M |
| 5 |
Wellington Management Group
Boston,
Massachusetts
|
+$39.1M |
Top Sellers
| 1 |
NMC
NEA Management Company
Timonium,
Maryland
|
-$54.7M |
| 2 |
GTC
Ghost Tree Capital
New York
|
-$18.8M |
| 3 |
SCM
Sarissa Capital Management
Greenwich,
Connecticut
|
-$16.1M |
| 4 |
VA
VR Adviser
New York
|
-$15.3M |
| 5 |
BI
BVF Inc
San Francisco,
California
|
-$13.8M |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
126
PNC Financial Services Group
Pittsburgh,
Pennsylvania
| $11K | +$6.49K | +19 | New |
|
127
Fidelity International
Hamilton,
Bermuda
| $8K | +$4.44K | +13 | New |
|
128
Royal Bank of Canada
Toronto,
Ontario, Canada
| $3K | -$683 | -2 | -33% |
|
129
Osaic Holdings
Scottsdale,
Arizona
| $1K | -$5.46K | -16 | -89% |
|
|
TCOV
130
Trust Company of Vermont
Brattleboro,
Vermont
| $1K | +$683 | +2 | New |
|
|
VA
131
VR Adviser
New York
| – | -$15.3M | -104,956 | Closed |
|
|
BI
132
BVF Inc
San Francisco,
California
| – | -$13.8M | -94,896 | Closed |
|
133
Mackenzie Financial
Toronto Ontario,
Ontario, Canada
| – | -$617K | -4,231 | Closed |
|
|
DTL
134
Dynamic Technology Lab
Singapore
| – | -$91K | -621 | Closed |
|
|
BFM
135
Boothbay Fund Management
New York
| – | -$71K | -484 | Closed |
|
|
CG
136
Cutler Group
San Francisco,
California
| – | -$2.73K | -8 | Closed |
|