Assembly Biosciences
ASMB
37 hedge funds and large institutions have $30.4M invested in Assembly Biosciences in 2025 Q1 according to their latest regulatory filings, with 6 funds opening new positions, 11 increasing their positions, 10 reducing their positions, and 4 closing their positions.
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
50% more first-time investments, than exits
New positions opened: 6 | Existing positions closed: 4
10% more repeat investments, than reductions
Existing positions increased: 11 | Existing positions reduced: 10
6% more funds holding
Funds holding: 35 → 37 (+2)
7.75% less ownership
Funds ownership: 50.09% → 42.34% (-7.7%)
40% less capital invested
Capital invested by funds: $50.3M → $30.4M (-$19.9M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BGI
B Group Inc
Dallas,
Texas
|
+$1.95M |
| 2 |
Squarepoint
New York
|
+$248K |
| 3 |
Renaissance Technologies
New York
|
+$243K |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$203K |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$160K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AC
Armistice Capital
New York
|
-$1.89M |
| 2 |
PLC
Peapod Lane Capital
Bedford Hills,
New York
|
-$994K |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
-$156K |
| 4 |
JP Morgan Chase
New York
|
-$149K |
| 5 |
MAM
Marquette Asset Management
Minneapolis,
Minnesota
|
-$142K |
ASMB Hedge Fund Activity: Q1 2025 in Review
37 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Assembly Biosciences (ASMB) for Q1 2025, worth a combined $30.4M — down 40% from $50.3M a quarter earlier.
Buyers outnumbered sellers: 6 funds opened new ASMB positions and 4 closed out — a net gain of 2 holders — while 11 added to existing stakes and 10 trimmed.
The largest buyer was B Group Inc, adding an estimated $1.95M. The largest seller was Armistice Capital, cutting an estimated $1.89M.
- 37 institutional investors held Assembly Biosciences (ASMB) as of Q1 2025, up from 35 in Q4 2024.
- Funds reported $30.4M of Assembly Biosciences stock for Q1 2025, down 40% quarter-over-quarter.
- 6 funds opened new Assembly Biosciences positions in Q1 2025 and 4 closed out, a net change of +2 holders.
- The largest Assembly Biosciences buyer in Q1 2025 was B Group Inc, an estimated $1.95M added.
- The largest Assembly Biosciences seller in Q1 2025 was Armistice Capital, an estimated $1.89M sold.
Based on aggregated 13F filings for Q1 2025.