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MRSN

Mersana Therapeutics

Delisted

MRSN was delisted on the 5th of January, 2026.

113 hedge funds and large institutions have $219M invested in Mersana Therapeutics in 2024 Q3 according to their latest regulatory filings, with 11 funds opening new positions, 39 increasing their positions, 32 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed

22% more repeat investments, than reductions

Existing positions increased: 39 | Existing positions reduced: 32

0.05% more ownership

Funds ownership: 3.73%3.78% (+0.05%)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

4% less capital invested

Capital invested by funds: $230M → $219M (-$10.1M)

6% less funds holding

Funds holding: 120113 (-7)

35% less first-time investments, than exits

New positions opened: 11 | Existing positions closed: 17

37% less call options, than puts

Call options by funds: $770K | Put options by funds: $1.23M

Holders
113
Holders Change
-7
Holders Change %
-5.83%
% of All Funds
1.62%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.01%
New
11
Increased
39
Reduced
32
Closed
17
Calls
$770K
Puts
$1.23M
Net Calls
-$460K
Net Calls Change
-$704K
Name Holding Trade Value Shares
Change
Change in
Stake
YIH
126
Y-Intercept (HK)
Hong Kong
-$94K -1,871 Closed
A
127
AJOVista
Massachusetts
-$41.1K -819 Closed
Principal Financial Group
128
Principal Financial Group
Iowa
-$36.7K -731 Closed
Prudential Financial
129
Prudential Financial
New Jersey
-$34.8K -693 Closed
Dimensional Fund Advisors
130
Dimensional Fund Advisors
Texas
-$27.5K -548 Closed
SOW
131
State of Wyoming
Wyoming
-$18.4K -366 Closed
Optiver Holding
132
Optiver Holding
Netherlands
-$3.19K -63 Closed
Carson Wealth (CWM LLC)
133
Carson Wealth (CWM LLC)
Nebraska
+$132 +3 +150%