89bio
ETNB
ETNB was delisted on the 29th of October, 2025.
150 hedge funds and large institutions have $1.14B invested in 89bio in 2024 Q1 according to their latest regulatory filings, with 22 funds opening new positions, 69 increasing their positions, 52 reducing their positions, and 25 closing their positions.
50% more funds holding in top 10
Funds holding in top 10: 2 → 3 (+1)
33% more repeat investments, than reductions
Existing positions increased: 69 | Existing positions reduced: 52
9% more capital invested
Capital invested by funds: $1.05B → $1.14B (+$92.6M)
1.48% more ownership
Funds ownership: 103.74% → 105.22% (+1.5%)
2% less funds holding
Funds holding: 153 → 150 (-3)
12% less first-time investments, than exits
New positions opened: 22 | Existing positions closed: 25
41% less call options, than puts
Call options by funds: $9.08M | Put options by funds: $15.3M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Janus Henderson Group
London,
|
+$40.8M |
| 2 |
RI
RTW Investments
New York
|
+$19.9M |
| 3 |
SCM
Suvretta Capital Management
New York
|
+$15.6M |
| 4 |
RCM
RA Capital Management
Boston,
Massachusetts
|
+$14.9M |
| 5 |
BlackRock
New York
|
+$13.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Adage Capital Partners
Boston,
Massachusetts
|
-$29.6M |
| 2 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$21.9M |
| 3 |
FLSM
Frazier Life Sciences Management
Palo Alto,
California
|
-$11.1M |
| 4 |
Pictet Asset Management
Carouge,
Switzerland
|
-$9.38M |
| 5 |
Morgan Stanley
New York
|
-$7.49M |
ETNB Hedge Fund Activity: Q1 2024 in Review
150 of the 6,958 institutional investors tracked by Wall St. Rank reported a position in 89bio (ETNB) for Q1 2024, worth a combined $1.14B — up 8.8% from $1.05B a quarter earlier.
Sellers outnumbered buyers: 25 funds closed out of ETNB and 22 opened new positions — a net loss of 3 holders — while 52 trimmed existing stakes and 69 added.
The largest buyer was Janus Henderson Group, adding an estimated $40.8M. The largest seller was Adage Capital Partners, cutting an estimated $29.6M.
- 150 institutional investors held 89bio (ETNB) as of Q1 2024, down from 153 in Q4 2023.
- Funds reported $1.14B of 89bio stock for Q1 2024, up 8.8% quarter-over-quarter.
- 22 funds opened new 89bio positions in Q1 2024 and 25 closed out, a net change of -3 holders.
- The largest 89bio buyer in Q1 2024 was Janus Henderson Group, an estimated $40.8M added.
- The largest 89bio seller in Q1 2024 was Adage Capital Partners, an estimated $29.6M sold.
Based on aggregated 13F filings for Q1 2024.