Boundless Bio, Inc.
BOLD- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001782303
In the last 90 days, Boundless Bio, Inc. insiders filed 5 open-market purchases and 2 sales; 40 institutions reported holding it in 13F filings for Q2 2026, worth $38.3M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Boundless Bio, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 35
- −9 vs. Q2 2025
- Shares held
- 9.62M
- −166.0K (−1.7%) vs. Q2 2025
- Total value
- $11.8M
- +$1.95M (+19.7%) vs. Q2 2025
- New holders
- 1
- 7 more added
- Sold out
- 10
- 15 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting BOLD on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 40 | $38.3M |
| Q1 2026 | 36 | $9.33M |
| Q4 2025 | 36 | $10.5M |
| Q3 2025 | 35 | $11.8M |
| Q2 2025 | 44 | $9.88M |
| Q1 2025 | 54 | $19.6M |
| Q4 2024 | 55 | $37.6M |
| Q3 2024 | 55 | $46.1M |
| Q2 2024 | 47 | $53.4M |
| Q1 2024 | 43 | $208.8M |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Boundless Bio, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM, LLC | 15 | $0 | 0.00% | −547−97.3% | Reduced |
| UBS Group AG | 1 | $1 | 0.00% | −12−92.3% | Reduced |
| Barclays PLC | 2 | $2 | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 168 | $207 | 0.00% | +168 | New |
| BNP Paribas Arbitrage, SA | 349 | $429 | 0.00% | −1,621−82.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,593 | $3.19K | 0.00% | −3,479−57.3% | Reduced |
| Bank of America Corp | 7,739 | $9.52K | 0.00% | −36−0.5% | Reduced |
| Abel Hall, LLC | 12,925 | $15.9K | 0.01% | −1,474−10.2% | Reduced |
| Acadian Asset Management LLC | 13,753 | $16.0K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 14,299 | $17.6K | 0.00% | −56,005−79.7% | Reduced |
| Morgan Stanley | 15,501 | $19.1K | 0.00% | −1,238−7.4% | Reduced |
| State Street Corp | 15,962 | $19.6K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 18,047 | $22.2K | 0.00% | −3,495−16.2% | Reduced |
| XTX Topco Ltd | 29,081 | $35.8K | 0.00% | −10,983−27.4% | Reduced |
| Walleye Capital LLC | 39,624 | $48.7K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 50,500 | $62.1K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 50,771 | $62.4K | 0.00% | +32,372+175.9% | Added |
| BlackRock, Inc. | 65,374 | $80.4K | 0.00% | +1,116+1.7% | Added |
| Almitas Capital LLC | 86,808 | $106.8K | 0.02% | −148,697−63.1% | Reduced |
| Geode Capital Management, LLC | 102,268 | $125.8K | 0.00% | +43,365+73.6% | Added |
| Sio Capital Management, LLC | 163,679 | $201.3K | 0.05% | 00.0% | Unchanged |
| Millennium Management LLC | 164,091 | $201.8K | 0.00% | −49,470−23.2% | Reduced |
| Ensign Peak Advisors, Inc | 187,500 | $230.6K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 190,801 | $234.7K | 0.00% | −16,699−8.0% | Reduced |
| RBF Capital, LLC | 200,000 | $246.0K | 0.01% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 223,562 | $275.0K | 0.00% | +102,562+84.8% | Added |
| Redmile Group, LLC | 245,458 | $301.9K | 0.03% | −343,576−58.3% | Reduced |
| Alyeska Investment Group, L.P. | 300,000 | $369.0K | 0.00% | 00.0% | Unchanged |
| Stonepine Capital Management, LLC | 413,453 | $508.5K | 0.41% | +307,278+289.4% | Added |
| Wellington Management Group LLP | 556,233 | $684.2K | 0.00% | 00.0% | Unchanged |
| Vanguard Group Inc | 569,657 | $700.7K | 0.00% | +88,390+18.4% | Added |
| Sectoral Asset Management Inc | 678,574 | $834.6K | 0.52% | 00.0% | Unchanged |
| Citadel Advisors LLC | 876,412 | $1.08M | 0.00% | +45,476+5.5% | Added |
| Nextech Invest, Ltd. | 1,228,069 | $1.51M | 0.23% | 00.0% | Unchanged |
| FMR LLC | 3,098,071 | $3.81M | 0.00% | −27,032−0.9% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −55,242−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −32,211−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −27,509−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −2,582−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −2,551−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −1,127−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −97−100.0% | Sold out |