# BOUNDLESS BIO INC (BOLD)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/BOLD/

- Reporting holders: 41
- Reported value: $39.0M
- Shares held by institutions: 15,616,689 of 22,747,985 outstanding
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [ARCH Venture Management, LLC](https://holderbook.com/funds/1274403-arch-venture-management-llc/) | $6.7M | 2,694,095 | 0.6% | 1 |
| [FMR LLC](https://holderbook.com/funds/315066-fmr-llc/) | $6.5M | 2,581,055 | 0.0% | 10 |
| [TANG CAPITAL MANAGEMENT LLC](https://holderbook.com/funds/1232621-tang-capital-management-llc/) | $6.4M | 2,559,875 | 0.3% | 1 |
| [ADAR1 Capital Management, LLC](https://holderbook.com/funds/1940272-adar1-capital-management-llc/) | $4.9M | 1,968,216 | 0.2% | 1 |
| [Cormorant Asset Management, LP](https://holderbook.com/funds/1583977-cormorant-asset-management-lp/) | $2.5M | 1,000,000 | 0.1% | 1 |
| [VANGUARD CAPITAL MANAGEMENT LLC](https://holderbook.com/funds/2100119-vanguard-capital-management-llc/) | $1.5M | 614,923 | 0.0% | 2 |
| [WELLINGTON MANAGEMENT GROUP LLP](https://holderbook.com/funds/902219-wellington-management-group-llp/) | $1.4M | 556,233 | 0.0% | 10 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $1.2M | 478,639 | 0.0% | 5 |
| [RENAISSANCE TECHNOLOGIES LLC](https://holderbook.com/funds/1037389-renaissance-technologies-llc/) | $1.2M | 471,570 | 0.0% | 6 |
| [Stonepine Capital Management, LLC](https://holderbook.com/funds/1440771-stonepine-capital-management-llc/) | $773.0K | 309,190 | 0.2% | 5 |
| [Alyeska Investment Group, L.P.](https://holderbook.com/funds/1453072-alyeska-investment-group-l-p/) | $750.0K | 300,000 | 0.0% | 10 |
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $725.2K | 290,098 | 0.0% | 10 |
| [Affinity Asset Advisors, LLC](https://holderbook.com/funds/1773195-affinity-asset-advisors-llc/) | $625.0K | 250,000 | 0.0% | 1 |
| [RBF Capital, LLC](https://holderbook.com/funds/1134621-rbf-capital-llc/) | $500.0K | 200,000 | 0.0% | 5 |
| [Ensign Peak Advisors, Inc](https://holderbook.com/funds/1454984-ensign-peak-advisors-inc/) | $399.6K | 159,835 | 0.0% | 10 |
| [ACADIAN ASSET MANAGEMENT LLC](https://holderbook.com/funds/916542-acadian-asset-management-llc/) | $365.0K | 146,757 | 0.0% | 7 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1107261-bridgeway-capital-management-llc/) | $320.0K | 128,000 | 0.0% | 5 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1214717-geode-capital-management-llc/) | $291.8K | 116,736 | 0.0% | 9 |
| [HRT FINANCIAL LP](https://holderbook.com/funds/1475597-hrt-financial-lp/) | $290.0K | 116,288 | 0.0% | 1 |
| [BlackRock, Inc.](https://holderbook.com/funds/2012383-blackrock-inc/) | $221.2K | 88,495 | 0.0% | 8 |
| [PRELUDE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1387508-prelude-capital-management-llc/) | $210.0K | 83,998 | 0.0% | 1 |
| [Rangeley Capital, LLC](https://holderbook.com/funds/1517796-rangeley-capital-llc/) | $185.0K | 74,000 | 0.2% | 1 |
| [GSA CAPITAL PARTNERS LLP](https://holderbook.com/funds/1362033-gsa-capital-partners-llp/) | $181.0K | 72,353 | 0.0% | 3 |
| [VANGUARD FIDUCIARY TRUST CO](https://holderbook.com/funds/933478-vanguard-fiduciary-trust-co/) | $162.8K | 65,136 | 0.0% | 2 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $160.8K | 64,323 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 41 | $39.0M |
| Q1 2026 | 36 | $9.5M |
| Q4 2025 | 35 | $11.0M |
| Q3 2025 | 34 | $12.2M |
| Q2 2025 | 43 | $9.9M |
| Q1 2025 | 52 | $19.6M |
| Q4 2024 | 54 | $37.6M |
| Q3 2024 | 54 | $46.1M |
| Q2 2024 | 47 | $53.5M |
| Q1 2024 | 43 | $208.8M |
| Q4 2019 | 190 | $2.7B |
| Q3 2019 | 148 | $1.3B |