89bio
ETNB
ETNB was delisted on the 29th of October, 2025.
144 hedge funds and large institutions have $774M invested in 89bio in 2024 Q3 according to their latest regulatory filings, with 16 funds opening new positions, 67 increasing their positions, 39 reducing their positions, and 16 closing their positions.
72% more repeat investments, than reductions
Existing positions increased: 67 | Existing positions reduced: 39
0% more first-time investments, than exits
New positions opened: 16 | Existing positions closed: 16
1% less funds holding
Funds holding: 145 → 144 (-1)
6.43% less ownership
Funds ownership: 105.09% → 98.66% (-6.4%)
7% less capital invested
Capital invested by funds: $828M → $774M (-$54.5M)
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
86% less call options, than puts
Call options by funds: $1.25M | Put options by funds: $9.22M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Janus Henderson Group
London,
United Kingdom
|
+$15.8M |
| 2 |
Westfield Capital Management
Boston,
Massachusetts
|
+$5.77M |
| 3 |
BlackRock
New York
|
+$4.49M |
| 4 |
Adage Capital Partners
Boston,
Massachusetts
|
+$3.99M |
| 5 |
DTC
Deep Track Capital
Greenwich,
Connecticut
|
+$3.97M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LCM
Laurion Capital Management
New York
|
-$11.5M |
| 2 |
MB
MPM BioImpact
Boston,
Massachusetts
|
-$6.66M |
| 3 |
BI
BVF Inc
San Francisco,
California
|
-$6.36M |
| 4 |
OCM
Orchard Capital Management
Chicago,
Illinois
|
-$5.86M |
| 5 |
Millennium Management
New York
|
-$5.28M |
ETNB Hedge Fund Activity: Q3 2024 in Review
144 of the 6,965 institutional investors tracked by Wall St. Rank reported a position in 89bio (ETNB) for Q3 2024, worth a combined $774M — down 6.6% from $828M a quarter earlier.
Fund positioning in ETNB was balanced in Q3 2024: 16 funds opened new positions, 16 closed out, 67 added to existing stakes and 39 trimmed.
The largest buyer was Janus Henderson Group, adding an estimated $15.8M. The largest seller was Laurion Capital Management, cutting an estimated $11.5M.
- 144 institutional investors held 89bio (ETNB) as of Q3 2024, down from 145 in Q2 2024.
- Funds reported $774M of 89bio stock for Q3 2024, down 6.6% quarter-over-quarter.
- 16 funds opened new 89bio positions in Q3 2024 and 16 closed out, a net change of 0 holders.
- The largest 89bio buyer in Q3 2024 was Janus Henderson Group, an estimated $15.8M added.
- The largest 89bio seller in Q3 2024 was Laurion Capital Management, an estimated $11.5M sold.
Based on aggregated 13F filings for Q3 2024.