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Mersana Therapeutics
MRSN

Overview Fund Activity

131 hedge funds and large institutions have $955M invested in Mersana Therapeutics in 2021 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 51 increasing their positions, 40 reducing their positions, and 19 closing their positions.

Holders
131
Holders Change
-1
Holders Change %
-0.76%
% of All Funds
2.29%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
18
Increased
51
Reduced
40
Closed
19
Calls
$37K
Puts
$3.75M
Net Calls
-$3.71M
Net Calls Change
-$3.34M

Top Buyers

1
Assenagon Asset Management
1
Assenagon Asset Management
Luxembourg
$14.1M
2
O
2
OrbiMed
New York
$38M
3
CS
3
Candriam SCA
Luxembourg
$26.8M
4
BlackRock
4
BlackRock
New York
$120M
5
CIBC Asset Management
5
CIBC Asset Management
Ontario, Canada
$14.4M

Top Sellers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$365K
2
PI
2
Putnam Investments
Massachusetts
$0
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$31.5M
4
Goldman Sachs
4
Goldman Sachs
New York
$7.84M
5
State Street
5
State Street
Massachusetts
$44.1M
Name Market Value Shares Shares
Change 		Shares
Change %
GTC
26
Ghost Tree Capital
New York
$6.11M 450,000 – –
CC
27
Commodore Capital
New York
$5.83M 429,228 – –
Charles Schwab
28
Charles Schwab
California
$5.6M 412,473 +42,290 +11%
Fidelity Investments
29
Fidelity Investments
Massachusetts
$5.16M 380,029 -348,900 -48%
Millennium Management
30
Millennium Management
New York
$4.43M 326,143 +38,472 +13%
Allianz Asset Management
31
Allianz Asset Management
Germany
$3.85M 283,450 +1,467 +0.5%
Nuveen Asset Management
32
Nuveen Asset Management
Illinois
$3.53M 259,948 +17,519 +7%
Bank of New York Mellon
33
Bank of New York Mellon
New York
$3.38M 249,001 -12,510 -5%
Deutsche Bank
34
Deutsche Bank
Germany
$2.67M 196,326 -23,072 -11%
Citigroup
35
Citigroup
New York
$2.52M 185,464 -44,637 -19%
Dimensional Fund Advisors
36
Dimensional Fund Advisors
Texas
$2.39M 176,004 -2,839 -2%
SCM
37
Sio Capital Management
New York
$2.14M 157,259 – –
SO
38
STRS Ohio
Ohio
$2.09M 153,742 – –
Macquarie Group
39
Macquarie Group
Australia
$2.06M 151,498 – –
DCM
40
DAFNA Capital Management
California
$1.74M 128,263 +4,000 +3%
Morgan Stanley
41
Morgan Stanley
New York
$1.71M 126,177 +112,940 +853%
Swiss National Bank
42
Swiss National Bank
Switzerland
$1.64M 120,796 -4,500 -4%
Comerica Bank
43
Comerica Bank
Texas
$1.62M 147,312 +54,066 +58%
Rafferty Asset Management
44
Rafferty Asset Management
New York
$1.6M 117,478 -67,630 -37%
B
45
Bailard
California
$1.51M 111,000 -20,000 -15%
PIM
46
Platinum Investment Management
Australia
$1.51M 110,906 – –
Susquehanna International Group
47
Susquehanna International Group
Pennsylvania
$1.5M 110,602 -20,777 -16%
California State Teachers Retirement System (CalSTRS)
48
California State Teachers Retirement System (CalSTRS)
California
$1.29M 94,917 +14,647 +18%
MS
49
Maven Securities
Jersey
$1.17M 84,469 +84,469 New
AAA
50
Affinity Asset Advisors
New York
$1.15M 85,000 – –
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