MREO

Mereo BioPharma
MREO

Overview Fund Activity

89 hedge funds and large institutions have $250M invested in Mereo BioPharma in 2025 Q1 according to their latest regulatory filings, with 13 funds opening new positions, 27 increasing their positions, 21 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
89
Holders Change
-1
Holders Change %
-1.11%
% of All Funds
1.21%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
13
Increased
27
Reduced
21
Closed
14
Calls
$3.5M
Puts
$1.75M
Net Calls
+$1.75M
Net Calls Change
+$564K

Top Buyers

1
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$12.9M
2
FLSM
Frazier Life Sciences Management
California
+$6.12M
3
Aberdeen Group
Aberdeen Group
United Kingdom
+$4.92M
4
SSA
Schonfeld Strategic Advisors
New York
+$2.47M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$1.71M

Top Sellers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$15.8M
2
Millennium Management
Millennium Management
New York
-$8.03M
3
RSCM
Rock Springs Capital Management
Maryland
-$6.56M
4
UBS Group
UBS Group
Switzerland
-$3.86M
5
Morgan Stanley
Morgan Stanley
New York
-$3.09M
Name Holding Trade Value Shares
Change 		Shares
Change %
Osaic Holdings
76
Osaic Holdings
Arizona
$6.89K +$6.6K +2,934 +2,274%
AF
77
Allworth Financial
California
$3.81K – – –
GWSG
78
GPS Wealth Strategies Group
Colorado
$3.38K – – –
CIAM
79
Caitong International Asset Management
Hong Kong
$3.34K +$2.62K +1,164 +364%
Wells Fargo
80
Wells Fargo
California
$2.77K +$2.25K +1,001 +437%
SIA
81
Sit Investment Associates
Minnesota
$2K – – –
JPMorgan Chase & Co
82
JPMorgan Chase & Co
New York
$821 – – –
MCM
83
MAI Capital Management
Ohio
$696 – – –
NECFA
84
New England Capital Financial Advisors
Connecticut
$675 – – –
T
85
Transce3nd
Texas
$286 – – –
PS
86
Principal Securities
Iowa
$112 – – –
US Bancorp
87
US Bancorp
Minnesota
$29 – – –
GBT
88
Grove Bank & Trust
Florida
$27 +$27 +12 New
BNP Paribas Financial Markets
89
BNP Paribas Financial Markets
France
$7 – – –
EP
90
Eversept Partners
New York
– -$2.72M -777,890 Closed
BOCH
91
Blue Owl Capital Holdings
New York
– -$2.35M -672,809 Closed
Verition Fund Management
92
Verition Fund Management
Connecticut
– -$832K -237,777 Closed
PAMP
93
Polar Asset Management Partners
Ontario, Canada
– -$595K -169,977 Closed
Walleye Capital
94
Walleye Capital
New York
– -$454K -129,629 Closed
XT
95
XTX Topco
Cayman Islands
– -$133K -37,974 Closed
VEA
96
Virtus ETF Advisers
New York
– -$66.7K -19,060 Closed
Manulife (Manufacturers Life Insurance)
97
Manulife (Manufacturers Life Insurance)
Ontario, Canada
– -$57.5K -16,435 Closed
JF
98
Jump Financial
Illinois
– -$38.9K -11,116 Closed
LC
99
Lindbrook Capital
California
– -$5.83K -1,665 Closed
BL
100
BFSG LLC
California
– -$3.5K -1,000 Closed
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4
5