We are live on
!
Find out more
MRSN
Mersana Therapeutics
MRSN
MRSN
Delisted
MRSN was delisted on the 5th of January, 2026.
65 hedge funds and large institutions have $194M invested in Mersana Therapeutics in 2019 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 26 increasing their positions, 9 reducing their positions, and 4 closing their positions.
New
Increased
Maintained
Reduced
Closed
425% more first-time investments, than exits
New positions opened: 21 | Existing positions closed: 4
189% more repeat investments, than reductions
Existing positions increased: 26 | Existing positions reduced: 9
177% more capital invested
Capital invested by funds: $70M → $194M (+$124M)
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
35% more funds holding
Funds holding: 48 → 65 (+17)
0.14% more ownership
Funds ownership: 2.96% → 3.1% (+0.14%)
Holders
65
Holders Change
+17
Holders Change %
+35.42%
% of All Funds
1.41%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.04%
New
21
Increased
26
Reduced
9
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–
Top Buyers
| 1 |
NMC
NEA Management Company
Timonium,
Maryland
|
+$18.9M |
| 2 |
SCM
Sarissa Capital Management
Greenwich,
Connecticut
|
+$18.9M |
| 3 |
BI
BVF Inc
San Francisco,
California
|
+$12.6M |
| 4 |
EC
EcoR1 Capital
San Francisco,
California
|
+$11.6M |
| 5 |
O
OrbiMed
New York
|
+$9.52M |
Top Sellers
| 1 |
Fidelity International
Hamilton,
Bermuda
|
-$1.45M |
| 2 |
JG
Jefferies Group
New York
|
-$1.37M |
| 3 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
-$158K |
| 4 |
Morgan Stanley
New York
|
-$63.3K |
| 5 |
TRCT
Tower Research Capital (TRC)
New York
|
-$47.2K |
