LA JOLLA, CA
BOUNDLESS BIO, INC.BOLD— Latest position per institution from SEC 13F filings
15
Institutional holders
25.08M
Total shares held
456.56M
Estimated value
1.25M
Avg. position size
NUVEEN, LLC
CIK 1871926
Shares
3.96M
Value
399.32M
Filed
Mar 31, 2025
ARCH VENTURE MANAGEMENT, LLC
CIK 1274403
Shares
2.69M
Value
6.74M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
2.58M
Value
6.45M
Filed
Jun 30, 2026
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
2.56M
Value
6.40M
Filed
Jun 30, 2026
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
2.18M
Value
3.29M
Filed
Mar 31, 2025
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
1.97M
Value
4.92M
Filed
Jun 30, 2026
NEXTECH INVEST LTD.
CIK 1911010
Shares
1.23M
Value
3.56M
Filed
Dec 31, 2024
NEXTECH INVEST LTD.
CIK 1595430
Shares
1.23M
Value
1.51M
Filed
Sep 30, 2025
CORMORANT ASSET MANAGEMENT, LP
CIK 1583977
Shares
1M
Value
2.50M
Filed
Jun 30, 2026
BOXER CAPITAL, LLC
CIK 1465837
Shares
711.33K
Value
2.47M
Filed
Sep 30, 2024
SECTORAL ASSET MANAGEMENT INC
CIK 1274413
Shares
678.57K
Value
746.43K
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
662.76K
Value
795.31K
Filed
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
614.92K
Value
1.54M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
556.23K
Value
1.39M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
517.09K
Value
2M
Filed
Jun 30, 2024
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
478.64K
Value
1.20M
Filed
Jun 30, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
471.57K
Value
1.18M
Filed
Jun 30, 2026
FEDERATED HERMES, INC.
CIK 1056288
Shares
375K
Value
5.34M
Filed
Mar 31, 2024
SILVERARC CAPITAL MANAGEMENT, LLC
CIK 1816307
Shares
312.50K
Value
4.45M
Filed
Mar 31, 2024
ALYESKA INVESTMENT GROUP, L.P.
CIK 1453072
Shares
300K
Value
750K
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | NUVEEN, LLC | 1871926 | 3.96M | 399.32M | Mar 31, 2025 |
| 2 | ARCH VENTURE MANAGEMENT, LLC | 1274403 | 2.69M | 6.74M | Jun 30, 2026 |
| 3 | FMR LLC | 315066 | 2.58M | 6.45M | Jun 30, 2026 |
| 4 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 2.56M | 6.40M | Jun 30, 2026 |
| 5 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 2.18M | 3.29M | Mar 31, 2025 |
| 6 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 1.97M | 4.92M | Jun 30, 2026 |
| 7 | NEXTECH INVEST LTD. | 1911010 | 1.23M | 3.56M | Dec 31, 2024 |
| 8 | NEXTECH INVEST LTD. | 1595430 | 1.23M | 1.51M | Sep 30, 2025 |
| 9 | CORMORANT ASSET MANAGEMENT, LP | 1583977 | 1M | 2.50M | Jun 30, 2026 |
| 10 | BOXER CAPITAL, LLC | 1465837 | 711.33K | 2.47M | Sep 30, 2024 |
| 11 | SECTORAL ASSET MANAGEMENT INC | 1274413 | 678.57K | 746.43K | Mar 31, 2026 |
| 12 | VANGUARD GROUP INC | 102909 | 662.76K | 795.31K | Dec 31, 2025 |
| 13 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 614.92K | 1.54M | Jun 30, 2026 |
| 14 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 556.23K | 1.39M | Jun 30, 2026 |
| 15 | BLACKROCK FINANCE, INC. | 1364742 | 517.09K | 2M | Jun 30, 2024 |
| 16 | MILLENNIUM MANAGEMENT LLC | 1273087 | 478.64K | 1.20M | Jun 30, 2026 |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 471.57K | 1.18M | Jun 30, 2026 |
| 18 | FEDERATED HERMES, INC. | 1056288 | 375K | 5.34M | Mar 31, 2024 |
| 19 | SILVERARC CAPITAL MANAGEMENT, LLC | 1816307 | 312.50K | 4.45M | Mar 31, 2024 |
| 20 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 300K | 750K | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.