Boundless BioBOLD
13F holders, Q2 2025 (June 30)At the end of Q2 2025, 44 institutions reported holding Boundless Bio Inc. (BOLD) in their 13F filings, down 10 from Q1 2025. 11 opened new positions and 21 sold out. The largest holders were FMR LLC ($3.2M), Nextech Invest Ltd. ($1.2M) and Citadel Advisors ($839K). 3 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Boundless Bio Inc.
- CUSIP
- 10170A100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 11 | $715K |
| Exits | 21 | $403.6M |
All 13F filers, Q1 2025 → Q2 2025: 876,823 shares bought and 8,060,929 shares sold, net −7,184,106 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 44 holders
| FMR LLC | 0.00% | Reduce -1.0% | 3,125,103 | $3.2M |
| Nextech Invest Ltd. | 0.23% | No change | 1,228,069 | $1.2M |
| Citadel Advisors | 0.00% | No change | 830,936 | $839K |
| Sectoral Asset Management Inc. | 0.45% | No change | 678,574 | $685K |
| Redmile Group, LLC | 0.06% | Reduce -18.8% | 589,034 | $595K |
| Wellington Management Group LLP | 0.00% | No change | 556,233 | $562K |
| Vanguard Group Inc. | 0.00% | Reduce -17.9% | 481,267 | $486K |
| Alyeska Investment Group, L.P. | 0.00% | No change | 300,000 | $303K |
| Almitas Capital LLC | 0.06% | Add +0.5% | 235,505 | $238K |
| Millennium Management | 0.00% | New | 213,561 | $216K |
| Northern Trust Corp. | 0.00% | Reduce -34.2% | 207,500 | $210K |
| RBF Capital, LLC | 0.01% | New | 200,000 | $202K |
| Ensign Peak Advisors, Inc | 0.00% | No change | 187,500 | $189K |
| Sio Capital Management, LLC | 0.07% | Add +1.0% | 163,679 | $165K |
| Renaissance Technologies | 0.00% | Add +740.3% | 121,000 | $122K |
| Stonepine Capital Management, LLC | 0.11% | New | 106,175 | $107K |
| Goldman Sachs Group Inc. | 0.00% | Add +104.2% | 70,304 | $71K |
| BlackRock, Inc. | 0.00% | Reduce -89.8% | 64,258 | $65K |
| Geode Capital Management, LLC | 0.00% | Reduce -76.2% | 58,903 | $59K |
| Y-Intercept (Hong Kong) Ltd | 0.00% | New | 55,242 | $56K |
| Bridgeway Capital Management, LLC | 0.00% | New | 50,500 | $51K |
| XTX Topco Ltd | 0.00% | Add +54.6% | 40,064 | $40K |
| Walleye Capital LLC | 0.00% | No change | 39,624 | $40K |
| Susquehanna International Group, LLP | 0.00% | Add +38.6% | 32,211 | $33K |
| HRT Financial LP | 0.00% | New | 27,509 | $27K |
| Qube Research & Technologies Ltd | 0.00% | New | 21,542 | $22K |
| Squarepoint Ops LLC | 0.00% | New | 18,399 | $19K |
| Morgan Stanley | 0.00% | Reduce -53.6% | 16,739 | $17K |
| State Street Corp. | 0.00% | Reduce -66.9% | 15,962 | $16K |
| Abel Hall, LLC | 0.01% | New | 14,399 | $15K |
| Acadian Asset Management LLC | 0.00% | Reduce -37.7% | 13,753 | $13K |
| Bank of America Corp. | 0.00% | Reduce -49.2% | 7,775 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -5.4% | 6,072 | $6K |
| Wells Fargo & Company | 0.00% | Reduce -70.9% | 2,582 | $3K |
| Citigroup Inc. | 0.00% | Reduce -78.5% | 2,551 | $3K |
| BNP Paribas Financial Markets | 0.00% | Reduce -89.6% | 1,970 | $2K |
| JPMorgan Chase & Co. | 0.00% | Reduce -94.2% | 1,127 | $1K |
| Raymond James Financial Inc. | 0.00% | New | 1,000 | $1K |
| Cwm, LLC | 0.00% | Add +30.7% | 562 | $1K |
| Clearstead Advisors, LLC | 0.00% | New | 24 | $25 |
| UBS Group AG | 0.00% | Reduce -99.8% | 13 | $13 |
| Barclays PLC | 0.00% | Reduce -100.0% | 2 | $2 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -33.3% | 2 | $2 |
| Royal Bank of Canada | 0.00% | Reduce -88.8% | 97 | $0 |
"% of holder's portfolio" is BOLD's weight in each manager's 13F, not the share of Boundless Bio Inc. the manager owns.