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89bio
ETNB

Overview Fund Activity

186 hedge funds and large institutions have $1.14B invested in 89bio in 2025 Q1 according to their latest regulatory filings, with 54 funds opening new positions, 90 increasing their positions, 33 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
186
Holders Change
+31
Holders Change %
+20%
% of All Funds
2.53%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
54
Increased
90
Reduced
33
Closed
22
Calls
$3.12M
Puts
$7.7M
Net Calls
-$4.59M
Net Calls Change
+$2.92M

Top Buyers

1
RCM
RA Capital Management
Massachusetts
+$41.5M
2
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$31.9M
3
SCM
Suvretta Capital Management
New York
+$30M
4
DTC
Deep Track Capital
Connecticut
+$20.6M
5
LGM
Logos Global Management
California
+$18.2M

Top Sellers

1
RI
RTW Investments
New York
-$40.1M
2
BI
BVF Inc
California
-$33.9M
3
FLSM
Frazier Life Sciences Management
California
-$7.82M
4
AllianceBernstein
AllianceBernstein
Tennessee
-$6.46M
5
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$4.96M
Name Holding Trade Value Shares
Change 		Shares
Change %
GCM
76
Ghisallo Capital Management
Massachusetts
$1.27M +$1.27M +175,000 New
Susquehanna International Group
77
Susquehanna International Group
Pennsylvania
$1.22M +$756K +103,931 +162%
AllianceBernstein
78
AllianceBernstein
Tennessee
$1.12M -$6.46M -888,310 -85%
RhumbLine Advisers
79
RhumbLine Advisers
Massachusetts
$1.11M +$161K +22,158 +17%
JGC
80
J. Goldman & Co
New York
$1.04M +$1.04M +142,565 New
HWAM
81
Hennion & Walsh Asset Management
New Jersey
$1.02M +$333K +45,812 +48%
DekaBank Deutsche Girozentrale
82
DekaBank Deutsche Girozentrale
Germany
$1.02M – – –
Rafferty Asset Management
83
Rafferty Asset Management
New York
$998K +$353K +48,502 +55%
VOYA Investment Management
84
VOYA Investment Management
Georgia
$965K +$779K +107,151 +418%
State of Wisconsin Investment Board
85
State of Wisconsin Investment Board
Wisconsin
$863K -$323K -44,468 -27%
Invesco
86
Invesco
Georgia
$842K +$578K +79,515 +219%
SCM
87
Superstring Capital Management
New York
$794K -$173K -23,826 -18%
Legal & General Group
88
Legal & General Group
United Kingdom
$775K +$224K +30,837 +41%
California State Teachers Retirement System (CalSTRS)
89
California State Teachers Retirement System (CalSTRS)
California
$756K +$197K +27,056 +35%
Deutsche Bank
90
Deutsche Bank
Germany
$739K +$172K +23,607 +30%
IC
91
Ikarian Capital
Texas
$727K +$727K +100,000 New
TI
92
Trexquant Investment
Connecticut
$721K +$721K +99,183 New
Jacobs Levy Equity Management
93
Jacobs Levy Equity Management
New Jersey
$719K +$719K +98,848 New
PCM
94
Prelude Capital Management
New York
$713K +$211K +29,086 +42%
BGI
95
B Group Inc
Texas
$695K +$695K +95,623 New
AI
96
Atom Investors
Texas
$677K +$677K +93,167 New
JG
97
Jain Global
New York
$643K +$643K +88,482 New
AQR Capital Management
98
AQR Capital Management
Connecticut
$583K +$583K +80,199 New
JPMorgan Chase & Co
99
JPMorgan Chase & Co
New York
$546K -$1.7M -233,363 -76%
Wells Fargo
100
Wells Fargo
California
$542K +$176K +24,229 +48%
2 3
4
5 6