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 %
EAM
101
Exome Asset Management
New York
– – – –
1 2 3 4
5