89bio
ETNB
ETNB was delisted on the 29th of October, 2025.
67 hedge funds and large institutions have $400M invested in 89bio in 2021 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 24 increasing their positions, 21 reducing their positions, and 11 closing their positions.
14% more repeat investments, than reductions
Existing positions increased: 24 | Existing positions reduced: 21
12% more call options, than puts
Call options by funds: $539K | Put options by funds: $480K
0.7% more ownership
Funds ownership: 84.09% → 84.79% (+0.7%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
2% less capital invested
Capital invested by funds: $407M → $400M (-$6.86M)
9% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 11
1% less funds holding
Funds holding: 68 → 67 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
EAM
Eventide Asset Management
Boston,
Massachusetts
|
+$9.22M |
| 2 |
PHS
Pekin Hardy Strauss
Chicago,
Illinois
|
+$4.23M |
| 3 |
Verition Fund Management
Greenwich,
Connecticut
|
+$2.46M |
| 4 |
Norges Bank
Oslo,
Norway
|
+$1.14M |
| 5 |
BlackRock
New York
|
+$985K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$3.41M |
| 2 |
Morgan Stanley
New York
|
-$2.28M |
| 3 |
SFM
Sphera Funds Management
Tel Aviv,
Israel
|
-$1.7M |
| 4 |
Hudson Bay Capital Management
Stamford,
Connecticut
|
-$1.22M |
| 5 |
SSA
Schonfeld Strategic Advisors
New York
|
-$1.11M |
ETNB Hedge Fund Activity: Q1 2021 in Review
67 of the 5,696 institutional investors tracked by Wall St. Rank reported a position in 89bio (ETNB) for Q1 2021, worth a combined $400M — down 1.7% from $407M a quarter earlier.
Sellers outnumbered buyers: 11 funds closed out of ETNB and 10 opened new positions — a net loss of 1 holder — while 21 trimmed existing stakes and 24 added.
The largest buyer was Eventide Asset Management, adding an estimated $9.22M. The largest seller was Wellington Management Group, cutting an estimated $3.41M.
- 67 institutional investors held 89bio (ETNB) as of Q1 2021, down from 68 in Q4 2020.
- Funds reported $400M of 89bio stock for Q1 2021, down 1.7% quarter-over-quarter.
- 10 funds opened new 89bio positions in Q1 2021 and 11 closed out, a net change of -1 holder.
- The largest 89bio buyer in Q1 2021 was Eventide Asset Management, an estimated $9.22M added.
- The largest 89bio seller in Q1 2021 was Wellington Management Group, an estimated $3.41M sold.
Based on aggregated 13F filings for Q1 2021.