Boundless Bio
BOLD
36 hedge funds and large institutions have $10.5M invested in Boundless Bio in 2025 Q4 according to their latest regulatory filings, with 6 funds opening new positions, 10 increasing their positions, 9 reducing their positions, and 5 closing their positions.
20% more first-time investments, than exits
New positions opened: 6 | Existing positions closed: 5
11% more repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 9
3% more funds holding
Funds holding: 35 → 36 (+1)
3.75% less ownership
Funds ownership: 42.98% → 39.23% (-3.8%)
11% less capital invested
Capital invested by funds: $11.8M → $10.5M (-$1.3M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$595K |
| 2 |
SCM
Stonepine Capital Management
Bend,
Oregon
|
+$370K |
| 3 |
LCM
Landscape Capital Management
Englewood,
New Jersey
|
+$159K |
| 4 |
Renaissance Technologies
New York
|
+$147K |
| 5 |
Vanguard Group
Malvern,
Pennsylvania
|
+$116K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
NI
Nextech Invest
Zurich,
Switzerland
|
-$1.51M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$516K |
| 3 |
RG
Redmile Group
San Francisco,
California
|
-$302K |
| 4 |
AC
Almitas Capital
Santa Monica,
California
|
-$107K |
| 5 |
Squarepoint
New York
|
-$62.4K |
BOLD Hedge Fund Activity: Q4 2025 in Review
36 of the 8,280 institutional investors tracked by Wall St. Rank reported a position in Boundless Bio (BOLD) for Q4 2025, worth a combined $10.5M — down 11% from $11.8M a quarter earlier.
Buyers outnumbered sellers: 6 funds opened new BOLD positions and 5 closed out — a net gain of 1 holder — while 10 added to existing stakes and 9 trimmed.
The largest buyer was Citadel Advisors, adding an estimated $595K. The largest seller was Nextech Invest, exiting entirely with an estimated $1.51M sold.
- 36 institutional investors held Boundless Bio (BOLD) as of Q4 2025, up from 35 in Q3 2025.
- Funds reported $10.5M of Boundless Bio stock for Q4 2025, down 11% quarter-over-quarter.
- 6 funds opened new Boundless Bio positions in Q4 2025 and 5 closed out, a net change of +1 holder.
- The largest Boundless Bio buyer in Q4 2025 was Citadel Advisors, an estimated $595K added.
- The largest Boundless Bio seller in Q4 2025 was Nextech Invest, an estimated $1.51M sold.
Based on aggregated 13F filings for Q4 2025.