Institutional Ownership
Boundless Bio Inc
CUSIP 10170A100COMBOLDQ1 2026
Institutional Holders
33
13F filers
Shares Held
7.82M
Aggregate institutional
Institutional Value
$8.49M
Q1 2026
Net New Holders
-2
4 new · 6 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions4
Increased6
Decreased10
Sold out6
Institutional Holders
33 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Fmr LLC | 2.70M | $2.96M | +11.4K | Added |
| 2 | Citadel Advisors LLC | 1.34M | $1.48M | −11.8K | Reduced |
| 3 | Sectoral Asset Management Inc | 678.6K | $746.4K | 0 | Held |
| 4 | Stonepine Capital Management, LLC | 597.7K | $657.5K | −112.4K | Reduced |
| 5 | Wellington Management Group LLP | 556.2K | $611.9K | 0 | Held |
| 6 | Renaissance Technologies LLC | 399.0K | $438.9K | +57.6K | Added |
| 7 | Alyeska Investment Group, L.P. | 300.0K | $330.0K | 0 | Held |
| 8 | Rbf Capital, LLC | 200.0K | $220.0K | 0 | Held |
| 9 | Ensign Peak Advisors, Inc | 187.5K | $206.3K | 0 | Held |
| 10 | Sio Capital Management, LLC | 163.7K | $180.0K | 0 | Held |
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