89bio
ETNB
ETNB was delisted on the 29th of October, 2025.
157 hedge funds and large institutions have $1.46B invested in 89bio in 2023 Q2 according to their latest regulatory filings, with 46 funds opening new positions, 60 increasing their positions, 35 reducing their positions, and 34 closing their positions.
71% more repeat investments, than reductions
Existing positions increased: 60 | Existing positions reduced: 35
35% more capital invested
Capital invested by funds: $1.08B → $1.46B (+$383M)
35% more first-time investments, than exits
New positions opened: 46 | Existing positions closed: 34
8% more funds holding
Funds holding: 145 → 157 (+12)
3.36% more ownership
Funds ownership: 102.65% → 106.01% (+3.4%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
65% less call options, than puts
Call options by funds: $6.72M | Put options by funds: $19M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$59.7M |
| 2 |
PAMS
Pictet Asset Management (Switzerland)
Geneva 73,
Switzerland
|
+$45.6M |
| 3 |
State Street
Boston,
Massachusetts
|
+$27.6M |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$16.8M |
| 5 |
Deutsche Bank
Frankfurt Am Main Ge,
Germany
|
+$14M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Adage Capital Partners
Boston,
Massachusetts
|
-$30.7M |
| 2 |
CAM
Cormorant Asset Management
Boston,
Massachusetts
|
-$25.5M |
| 3 |
APM
Avidity Partners Management
Dallas,
Texas
|
-$23.1M |
| 4 |
DTC
Deep Track Capital
Greenwich,
Connecticut
|
-$22.8M |
| 5 |
Millennium Management
New York
|
-$21.5M |
ETNB Hedge Fund Activity: Q2 2023 in Review
157 of the 6,383 institutional investors tracked by Wall St. Rank reported a position in 89bio (ETNB) for Q2 2023, worth a combined $1.46B — up 35% from $1.08B a quarter earlier.
Buyers outnumbered sellers: 46 funds opened new ETNB positions and 34 closed out — a net gain of 12 holders — while 60 added to existing stakes and 35 trimmed.
The largest buyer was BlackRock, adding an estimated $59.7M. The largest seller was Adage Capital Partners, cutting an estimated $30.7M.
- 157 institutional investors held 89bio (ETNB) as of Q2 2023, up from 145 in Q1 2023.
- Funds reported $1.46B of 89bio stock for Q2 2023, up 35% quarter-over-quarter.
- 46 funds opened new 89bio positions in Q2 2023 and 34 closed out, a net change of +12 holders.
- The largest 89bio buyer in Q2 2023 was BlackRock, an estimated $59.7M added.
- The largest 89bio seller in Q2 2023 was Adage Capital Partners, an estimated $30.7M sold.
Based on aggregated 13F filings for Q2 2023.