MREO

Mereo BioPharma
MREO

Overview Fund Activity

81 hedge funds and large institutions have $266M invested in Mereo BioPharma in 2025 Q2 according to their latest regulatory filings, with 11 funds opening new positions, 29 increasing their positions, 19 reducing their positions, and 17 closing their positions.

Holders
81
Holders Change
-8
Holders Change %
-8.99%
% of All Funds
1.09%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
11
Increased
29
Reduced
19
Closed
17
Calls
$7.93M
Puts
$3.04M
Net Calls
+$4.89M
Net Calls Change
+$3.14M

Top Buyers

1
FLSM
1
Frazier Life Sciences Management
California
$25.6M
2
Goldman Sachs
2
Goldman Sachs
New York
$8.37M
3
Aberdeen Group
3
Aberdeen Group
United Kingdom
$8.21M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$4.01M
5
Citadel Advisors
5
Citadel Advisors
Florida
$2.06M

Top Sellers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$48.1M
2
RSCM
2
Rock Springs Capital Management
Maryland
$12.1M
3
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$0
4
Morgan Stanley
4
Morgan Stanley
New York
$2.13M
5
UBS AM
5
UBS AM
Illinois
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Wells Fargo
76
Wells Fargo
California
$622 230 -1,000 -81%
S
77
SignatureFD
Georgia
$507 187 +187 New
T
78
Transce3nd
Texas
$344 127 – –
PS
79
Principal Securities
Iowa
$203 75 +43 +134%
US Bancorp
80
US Bancorp
Minnesota
$35 13 – –
BNP Paribas Financial Markets
81
BNP Paribas Financial Markets
France
$8 3 – –
Adage Capital Partners
82
Adage Capital Partners
Massachusetts
– – -1,700,756 Closed
UBS AM
83
UBS AM
Illinois
– – -1,569,100 Closed
GPP
84
Great Point Partners
Connecticut
– – -1,275,000 Closed
WP
85
Woodline Partners
California
– – -947,986 Closed
PA
86
Perceptive Advisors
New York
– – -876,961 Closed
IHAM
87
Integral Health Asset Management
New York
– – -800,000 Closed
ACP
88
Acuta Capital Partners
California
– – -791,815 Closed
DP
89
Diadema Partners
New Jersey
– – -492,215 Closed
PAP
90
Persistent Asset Partners
Hong Kong
– – -113,247 Closed
BC
91
BIT Capital
Germany
– – -101,070 Closed
Ameriprise
92
Ameriprise
Minnesota
– – -39,030 Closed
HF
93
HRT Financial
New York
– – -15,713 Closed
HSBC Holdings
94
HSBC Holdings
United Kingdom
– – -13,577 Closed
ACM
95
ADAR1 Capital Management
Texas
– – -10,000 Closed
Osaic Holdings
96
Osaic Holdings
Arizona
– – -3,063 Closed
JPMorgan Chase & Co
97
JPMorgan Chase & Co
New York
– – -365 Closed
GBT
98
Grove Bank & Trust
Florida
– – -12 Closed
DAM
99
DLD Asset Management
New York
– – – –
LP
100
LMR Partners
United Kingdom
– – – –
1 2 3
4
5