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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
AllianceBernstein
51
AllianceBernstein
Tennessee
$352K
Federated Hermes
52
Federated Hermes
Pennsylvania
$347K -$3.09K -70 -0.9%
6CM
53
683 Capital Management
New York
$345K +$323K +7,312 New
RhumbLine Advisers
54
RhumbLine Advisers
Massachusetts
$315K -$16.3K -369 -5%
N
55
Nuveen
North Carolina
$286K +$49.2K +1,114 +23%
Macquarie Group
56
Macquarie Group
Australia
$284K
T. Rowe Price Associates
57
T. Rowe Price Associates
Maryland
$188K
SG Americas Securities
58
SG Americas Securities
New York
$165K -$90.9K -2,060 -37%
ETC
59
Exchange Traded Concepts
Oklahoma
$161K +$73.4K +1,663 +96%
SPS
60
Susquehanna Portfolio Strategies
Pennsylvania
$156K -$19.7K -446 -12%
Citigroup
61
Citigroup
New York
$156K +$100K +2,269 +222%
Squarepoint
62
Squarepoint
New York
$154K -$302K -6,847 -68%
Susquehanna International Group
63
Susquehanna International Group
Pennsylvania
$141K -$60.1K -1,362 -31%
Simplex Trading
64
Simplex Trading
Illinois
$137K +$60.4K +1,368 +88%
AG
65
Algert Global
California
$120K +$33.2K +753 +42%
Mirae Asset Global ETFs Holdings
66
Mirae Asset Global ETFs Holdings
Hong Kong
$119K +$10.9K +247 +11%
QF
67
QVT Financial
New York
$118K
CF
68
Corebridge Financial
Texas
$115K -$662 -15 -0.6%
Invesco
69
Invesco
Georgia
$105K +$18.4K +417 +23%
Wells Fargo
70
Wells Fargo
California
$90.9K +$1.5K +34 +2%
Ameriprise
71
Ameriprise
Minnesota
$86.3K +$176 +4 +0.2%
Manulife (Manufacturers Life Insurance)
72
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$84.1K -$3.53K -80 -4%
GCM
73
Graham Capital Management
Connecticut
$80.2K -$15.1K -342 -17%
VOYA Investment Management
74
VOYA Investment Management
Georgia
$72.4K -$529 -12 -0.8%
New York State Common Retirement Fund
75
New York State Common Retirement Fund
New York
$70.4K