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 %
S
101
SignatureFD
Georgia
– -$2.38K -679 Closed
GM
102
GeoWealth Management
Illinois
– -$554 -158 Closed
CWM
103
Cranbrook Wealth Management
Michigan
– -$210 -60 Closed
1 2 3 4
5