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Mersana Therapeutics

109 hedge funds and large institutions have $647M invested in Mersana Therapeutics in 2021 Q3 according to their latest regulatory filings, with 11 funds opening new positions, 45 increasing their positions, 34 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

less call options, than puts

Call options by funds: $ | Put options by funds: $

32% less capital invested

Capital invested by funds: $955M → $647M (-$308M)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

66% less first-time investments, than exits

New positions opened: 11 | Existing positions closed: 32

Holders
109
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.22M
Puts
$1.57M
Net Calls
Net Calls Change

Top Buyers

1 +$12.4M
2 +$7.96M
3 +$5.36M
4
Morgan Stanley
Morgan Stanley
New York
+$5.11M
5
Vanguard Group
Vanguard Group
Pennsylvania
+$4.72M

Top Sellers

1 -$28.6M
2 -$12.6M
3 -$8.2M
4
GTC
Ghost Tree Capital
New York
-$6.11M
5
CC
Commodore Capital
New York
-$5.83M
Name Holding Trade Value Shares
Change
Change in
Stake
51
$618K
52
$591K
53
$558K
54
$492K
55
$489K
56
$458K
57
$452K
58
$442K
59
$430K
60
$425K
61
$409K
62
$369K
63
$359K
64
$346K
65
$317K
66
$312K
67
$303K
68
$297K
69
$288K
70
$256K
71
$249K
72
$245K
73
$236K
74
$231K
75
$223K