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Zura Bio
ZURA

Overview Fund Activity

75 hedge funds and large institutions have $59M invested in Zura Bio in 2025 Q1 according to their latest regulatory filings, with 8 funds opening new positions, 24 increasing their positions, 20 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
75
Holders Change
-12
Holders Change %
-13.79%
% of All Funds
1.02%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
8
Increased
24
Reduced
20
Closed
19
Calls
–
Puts
$15K
Net Calls
-$15K
Net Calls Change
-$246K

Top Buyers

1
VA
VR Adviser
New York
+$3.87M
2
AI
Allostery Investments
Connecticut
+$1.05M
3
ACM
ADAR1 Capital Management
Texas
+$934K
4
Renaissance Technologies
Renaissance Technologies
New York
+$378K
5
Two Sigma Advisers
Two Sigma Advisers
New York
+$95.6K

Top Sellers

1
BCM
Boxer Capital Management
California
-$750K
2
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$750K
3
Millennium Management
Millennium Management
New York
-$513K
4
SCM
Superstring Capital Management
New York
-$467K
5
CM
Caption Management
Oklahoma
-$440K
Name Holding Trade Value Shares
Change 		Shares
Change %
BCM
76
Boxer Capital Management
California
– -$750K -300,000 Closed
Adage Capital Partners
77
Adage Capital Partners
Massachusetts
– -$750K -300,000 Closed
SCM
78
Superstring Capital Management
New York
– -$467K -186,943 Closed
CM
79
Caption Management
Oklahoma
– -$440K -175,987 Closed
SC
80
Shay Capital
New York
– -$233K -93,119 Closed
UOC
81
UBS O'Connor
Illinois
– -$202K -80,912 Closed
Citadel Advisors
82
Citadel Advisors
Florida
– -$144K -57,779 Closed
Hudson Bay Capital Management
83
Hudson Bay Capital Management
Connecticut
– -$113K -38,999 Closed
Dimensional Fund Advisors
84
Dimensional Fund Advisors
Texas
– -$93.2K -37,290 Closed
AC
85
Aristides Capital
Kentucky
– -$74K -29,600 Closed
CSS
86
Cubist Systematic Strategies
Connecticut
– -$61.7K -24,675 Closed
JF
87
Jump Financial
Illinois
– -$59.3K -23,701 Closed
Manulife (Manufacturers Life Insurance)
88
Manulife (Manufacturers Life Insurance)
Ontario, Canada
– -$44.5K -17,785 Closed
XT
89
XTX Topco
Cayman Islands
– -$44K -17,610 Closed
PCM
90
Prelude Capital Management
New York
– -$40.5K -16,200 Closed
Prudential Financial
91
Prudential Financial
New Jersey
– -$27.8K -11,105 Closed
American Century Companies
92
American Century Companies
Missouri
– -$27K -10,816 Closed
FDCDDQ
93
Federation des caisses Desjardins du Quebec
Quebec, Canada
– -$1.5K -600 Closed
Simplex Trading
94
Simplex Trading
Illinois
– -$1K -505 Closed
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