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 %
ACM
51
Aquatic Capital Management
Illinois
$73K 26,930 +26,930 New
QC
52
Quadrature Capital
United Kingdom
$69.1K 25,399 +2,712 +12%
CC
53
Centiva Capital
New York
$67.8K 25,000 – –
SWP
54
Significant Wealth Partners
Illinois
$60.3K 22,261 +8,490 +62%
GCM
55
Graham Capital Management
Connecticut
$57.4K 21,176 -28,242 -57%
CSS
56
Cubist Systematic Strategies
Connecticut
$57.2K 21,099 +21,099 New
Squarepoint
57
Squarepoint
New York
$56K 20,668 +2,737 +15%
GSEP
58
Golden State Equity Partners
California
$53.9K 19,900 – –
FA
59
Forefront Analytics
Pennsylvania
$51.9K 19,138 -28,492 -60%
OIA
60
OneDigital Investment Advisors
Kansas
$49.6K 18,300 – –
NFSG
61
Newbridge Financial Services Group
Florida
$35.2K 13,000 +2,000 +18%
LFAS
62
Level Four Advisory Services
Texas
$27.1K 10,000 – –
MG
63
Marex Group
$27.1K 10,000 +10,000 New
RhumbLine Advisers
64
RhumbLine Advisers
Massachusetts
$26.8K 9,878 +3,290 +50%
GI
65
GAMMA Investing
California
$25.1K 9,257 +877 +10%
CIAM
66
Caitong International Asset Management
Hong Kong
$12.3K 4,544 +3,060 +206%
AAP
67
Arax Advisory Partners
Colorado
$10.8K 4,000 – –
AF
68
Allworth Financial
California
$4.44K 1,637 +137 +9%
Raymond James Financial
69
Raymond James Financial
Florida
$4.26K 1,570 +1,570 New
GWSG
70
GPS Wealth Strategies Group
Colorado
$4.07K 1,500 – –
SIA
71
Sit Investment Associates
Minnesota
$3K 970 – –
BIG
72
Brooklyn Investment Group
New York
$2.3K 849 +849 New
EWA
73
EverSource Wealth Advisors
Alabama
$1.27K 470 +470 New
MCM
74
MAI Capital Management
Ohio
$838 309 – –
NECFA
75
New England Capital Financial Advisors
Connecticut
$813 300 – –
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