MIAMI, FL
SUMMIT THERAPEUTICS INC.SMMT— Latest position per institution from SEC 13F filings
15
Institutional holders
127.63M
Total shares held
1.78B
Estimated value
6.38M
Avg. position size
BAKER BROS. ADVISORS LP
CIK 1263508
Shares
32.79M
Value
477.70M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
11.18M
Value
195.49M
Filed
Dec 31, 2025
FMR LLC
CIK 315066
Shares
10.04M
Value
146.34M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
9.54M
Value
138.95M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
9.53M
Value
138.84M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
7.90M
Value
61.61M
Filed
Jun 30, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
5.73M
Value
83.55M
Filed
Jun 30, 2026
UBS GROUP AG
CIK 1610520
Shares
5.31M
Value
77.31M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
5.04M
Value
73.46M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
4.51M
Value
65.76M
Filed
Jun 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
3.89M
Value
56.73K
Filed
Jun 30, 2026
POINT72 ASSET MANAGEMENT, L.P.
CIK 1603466
Shares
3.70M
Value
53.88M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
3.43M
Value
49.95M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
2.88M
Value
41.89M
Filed
Jun 30, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
2.40M
Value
34.98M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
2.35M
Value
34.23M
Filed
Jun 30, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 1165408
Shares
1.99M
Value
28.99M
Filed
Jun 30, 2026
BALYASNY ASSET MANAGEMENT L.P.
CIK 1218710
Shares
1.90M
Value
27.74M
Filed
Jun 30, 2026
SQUAREPOINT OPS LLC
CIK 1642575
Shares
1.83M
Value
26.69M
Filed
Jun 30, 2026
ABERDEEN GROUP PLC
CIK 1716774
Shares
1.69M
Value
24.68M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BAKER BROS. ADVISORS LP | 1263508 | 32.79M | 477.70M | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 11.18M | 195.49M | Dec 31, 2025 |
| 3 | FMR LLC | 315066 | 10.04M | 146.34M | Jun 30, 2026 |
| 4 | STATE STREET CORP | 93751 | 9.54M | 138.95M | Jun 30, 2026 |
| 5 | BLACKROCK, INC. | 2012383 | 9.53M | 138.84M | Jun 30, 2026 |
| 6 | BLACKROCK FINANCE, INC. | 1364742 | 7.90M | 61.61M | Jun 30, 2024 |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 5.73M | 83.55M | Jun 30, 2026 |
| 8 | UBS GROUP AG | 1610520 | 5.31M | 77.31M | Jun 30, 2026 |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 5.04M | 73.46M | Jun 30, 2026 |
| 10 | GOLDMAN SACHS GROUP INC | 886982 | 4.51M | 65.76M | Jun 30, 2026 |
| 11 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 3.89M | 56.73K | Jun 30, 2026 |
| 12 | POINT72 ASSET MANAGEMENT, L.P. | 1603466 | 3.70M | 53.88M | Jun 30, 2026 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 3.43M | 49.95M | Jun 30, 2026 |
| 14 | CITADEL ADVISORS LLC | 1423053 | 2.88M | 41.89M | Jun 30, 2026 |
| 15 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 2.40M | 34.98M | Jun 30, 2026 |
| 16 | MILLENNIUM MANAGEMENT LLC | 1273087 | 2.35M | 34.23M | Jun 30, 2026 |
| 17 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1165408 | 1.99M | 28.99M | Jun 30, 2026 |
| 18 | BALYASNY ASSET MANAGEMENT L.P. | 1218710 | 1.90M | 27.74M | Jun 30, 2026 |
| 19 | SQUAREPOINT OPS LLC | 1642575 | 1.83M | 26.69M | Jun 30, 2026 |
| 20 | ABERDEEN GROUP PLC | 1716774 | 1.69M | 24.68M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.