Summit Therapeutics Inc.
SMMT- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001599298
No open-market purchases or sales by Summit Therapeutics Inc. insiders were filed in the last 90 days; 242 institutions reported holding it in 13F filings for Q2 2026, worth $1.98B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Summit Therapeutics Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 222
- +22 vs. Q4 2025
- Shares held
- 118.9M
- +13.7M (+13.0%) vs. Q4 2025
- Total value
- $2.25B
- +$411.9M (+22.4%) vs. Q4 2025
- New holders
- 58
- 83 more added
- Sold out
- 36
- 49 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SMMT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 242 | $1.98B |
| Q1 2026 | 222 | $2.25B |
| Q4 2025 | 206 | $2.06B |
| Q3 2025 | 232 | $2.13B |
| Q2 2025 | 226 | $2.08B |
| Q1 2025 | 202 | $1.91B |
| Q4 2024 | 196 | $1.65B |
| Q3 2024 | 164 | $1.85B |
| Q2 2024 | 121 | $563.0M |
| Q1 2024 | 103 | $205.5M |
| Q4 2023 | 95 | $84.4M |
| Q3 2023 | 91 | $60.4M |
| Q2 2023 | 96 | $87.6M |
| Q1 2023 | 86 | $37.0M |
| Q4 2022 | 57 | $34.5M |
| Q3 2022 | 42 | $3.78M |
| Q2 2022 | 41 | $8.46M |
| Q1 2022 | 48 | $27.4M |
| Q4 2021 | 52 | $30.0M |
| Q3 2021 | 51 | $55.3M |
| Q2 2021 | 54 | $82.4M |
| Q1 2021 | 38 | $54.5M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Summit Therapeutics Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 36,391,063 | $690.0M | 3.96% | 00.0% | Unchanged |
| FMR LLC | 10,853,199 | $205.8M | 0.01% | −2,507,608−18.8% | Reduced |
| BlackRock, Inc. | 9,653,758 | $183.0M | 0.00% | +291,837+3.1% | Added |
| Price T Rowe Associates Inc | 8,277,859 | $156.9M | 0.02% | −1,093,556−11.7% | Reduced |
| State Street Corp | 7,028,160 | $133.3M | 0.00% | +391,799+5.9% | Added |
| Vanguard Capital Management LLC | 5,711,802 | $108.3M | 0.00% | +5,711,802 | New |
| Vanguard Portfolio Management LLC | 5,233,252 | $99.2M | 0.01% | +5,233,252 | New |
| UBS Group AG | 3,680,315 | $69.8M | 0.01% | +2,809,596+322.7% | Added |
| Geode Capital Management, LLC | 3,315,854 | $62.9M | 0.00% | +168,374+5.3% | Added |
| D. E. Shaw & Co., Inc. | 2,242,229 | $42.5M | 0.03% | +1,826,945+439.9% | Added |
| Morgan Stanley | 1,650,591 | $31.3M | 0.00% | +724,012+78.1% | Added |
| Apeiron Capital Ltd | 1,309,141 | $24.8M | 23.22% | −1000.0% | Reduced |
| Pictet Asset Management Holding SA | 1,323,179 | $24.0M | 0.03% | −60,596−4.4% | Reduced |
| Two Sigma Investments, LP | 981,185 | $18.6M | 0.02% | +402,937+69.7% | Added |
| Charles Schwab Investment Management Inc | 960,867 | $18.2M | 0.00% | +68,238+7.6% | Added |
| TD Asset Management Inc | 956,894 | $18.1M | 0.01% | −248,378−20.6% | Reduced |
| Vanguard Fiduciary Trust Co | 934,394 | $17.7M | 0.00% | +934,394 | New |
| Superstring Capital Management LP | 892,873 | $16.9M | 12.09% | +892,873 | New |
| Point72 Asset Management, L.P. | 784,186 | $14.9M | 0.03% | +784,186 | New |
| Rock Springs Capital Management LP | 710,000 | $13.5M | 0.79% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 665,364 | $12.6M | 0.02% | −261,807−28.2% | Reduced |
| Squarepoint Ops LLC | 613,877 | $11.6M | 0.03% | −101,533−14.2% | Reduced |
| Susquehanna International Group, LLP | 603,933 | $11.5M | 0.01% | +603,933 | New |
| Bank of America Corp | 598,692 | $11.4M | 0.00% | +121,299+25.4% | Added |
| Manufacturers Life Insurance Company, The | 592,810 | $11.2M | 0.01% | +151,857+34.4% | Added |
| Northern Trust Corp | 581,600 | $11.0M | 0.00% | +53,113+10.1% | Added |
| Balyasny Asset Management LLC | 548,335 | $10.4M | 0.02% | +498,037+990.2% | Added |
| Candriam Luxembourg S.C.A. | 540,662 | $10.3M | 0.05% | 00.0% | Unchanged |
| Invesco Ltd. | 526,103 | $9.97M | 0.00% | +64,802+14.0% | Added |
| Marshall Wace, LLP | 475,241 | $9.01M | 0.01% | +475,241 | New |
| Citadel Advisors LLC | 441,743 | $8.38M | 0.01% | −2,033,965−82.2% | Reduced |
| AQR Capital Management LLC | 443,757 | $8.11M | 0.00% | +85,887+24.0% | Added |
| Bank of New York Mellon Corp | 404,679 | $7.67M | 0.00% | +50,923+14.4% | Added |
| Tudor Investment Corp Et Al | 384,988 | $7.30M | 0.04% | −38,096−9.0% | Reduced |
| Wellington Management Group LLP | 362,858 | $6.88M | 0.00% | +362,858 | New |
| QVT Financial LP | 360,524 | $6.84M | 0.54% | 00.0% | Unchanged |
| Nomura Holdings Inc | 313,981 | $5.95M | 0.05% | −228,253−42.1% | Reduced |
| E Fund Management Co., Ltd. | 311,825 | $5.91M | 0.18% | +311,825 | New |
| Goldman Sachs Group Inc | 310,728 | $5.89M | 0.00% | −174,838−36.0% | Reduced |
| Rafferty Asset Management, LLC | 259,074 | $4.91M | 0.02% | −28,736−10.0% | Reduced |
| ExodusPoint Capital Management, LP | 256,255 | $4.86M | 0.05% | +256,255 | New |
| Nuveen, LLC | 243,992 | $4.63M | 0.00% | +11,350+4.9% | Added |
| Deutsche Bank AG | 237,788 | $4.51M | 0.00% | 00.0% | Unchanged |
| Schroder Investment Management Group | 251,391 | $4.27M | 0.00% | 00.0% | Unchanged |
| Woodline Partners LP | 214,507 | $4.07M | 0.02% | 00.0% | Unchanged |
| Citigroup Inc | 199,133 | $3.78M | 0.00% | +69,207+53.3% | Added |
| Griffin Asset Management, Inc. | 191,872 | $3.64M | 0.41% | −3,675−1.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 137,596 | $2.61M | 0.20% | +16,289+13.4% | Added |
| Polymer Capital Management (HK) LTD | 133,034 | $2.52M | 0.35% | −1,288,121−90.6% | Reduced |
| Voya Investment Management LLC | 130,237 | $2.47M | 0.00% | +17,800+15.8% | Added |
| Rhumbline Advisers | 129,542 | $2.46M | 0.00% | +8,201+6.8% | Added |
| Millennium Management LLC | 126,273 | $2.39M | 0.00% | −342,744−73.1% | Reduced |
| Toroso Investments, LLC | 120,314 | $2.28M | 0.01% | +120,314 | New |
| Wells Fargo & Company | 120,301 | $2.28M | 0.00% | −10,585−8.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 119,655 | $2.27M | 0.04% | +119,655 | New |
| Tema ETFs LLC | 119,531 | $2.27M | 0.15% | +23,749+24.8% | Added |
| Jump Financial, LLC | 115,738 | $2.19M | 0.03% | +115,738 | New |
| Cerity Partners LLC | 113,786 | $2.16M | 0.00% | +908+0.8% | Added |
| Profund Advisors LLC | 112,926 | $2.14M | 0.08% | +9,165+8.8% | Added |
| Illinois Municipal Retirement Fund | 111,894 | $2.12M | 0.03% | +12,527+12.6% | Added |
| Bank of Montreal | 107,959 | $2.05M | 0.00% | +12,588+13.2% | Added |
| Jefferies Financial Group Inc. | 100,000 | $1.90M | 0.02% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 96,009 | $1.82M | 0.00% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 94,394 | $1.79M | 0.01% | +54,783+138.3% | Added |
| ADAR1 Capital Management, LLC | 91,869 | $1.74M | 0.10% | 00.0% | Unchanged |
| Canada Pension Plan Investment Board | 91,000 | $1.73M | 0.00% | +91,000 | New |
| NEXTBio Capital Management LP | 89,717 | $1.70M | 0.79% | +89,717 | New |
| Dimensional Fund Advisors LP | 88,496 | $1.67M | 0.00% | −288,067−76.5% | Reduced |
| Colony Group, LLC | 83,920 | $1.59M | 0.00% | −4,528−5.1% | Reduced |
| Dark Forest Capital Management LP | 80,780 | $1.53M | 0.14% | −6,289−7.2% | Reduced |
| UBS Asset Management Americas Inc | 79,696 | $1.51M | 0.00% | +70+0.1% | Added |
| Quantinno Capital Management LP | 73,835 | $1.40M | 0.00% | +59,512+415.5% | Added |
| Sectoral Asset Management Inc | 69,615 | $1.40M | 1.16% | −10,010−12.6% | Reduced |
| Guggenheim Capital LLC | 66,402 | $1.26M | 0.01% | +16,604+33.3% | Added |
| Wealth Management Partners, LLC | 63,784 | $1.21M | 0.35% | +4,354+7.3% | Added |
| State of Wisconsin Investment Board | 62,535 | $1.19M | 0.00% | −30,347−32.7% | Reduced |
| Havemeyer Place LP | 61,989 | $1.18M | 0.14% | +55,735+891.2% | Added |
| Vanguard Global Advisers, LLC | 61,136 | $1.16M | 0.00% | +61,136 | New |
| Assenagon Asset Management S.A. | 59,621 | $1.13M | 0.00% | 00.0% | Unchanged |
| Worldquant Millennium Advisors LLC | 58,272 | $1.10M | 0.00% | +16,538+39.6% | Added |
| JPMorgan Chase & Co | 64,554 | $1.10M | 0.00% | −2,868−4.3% | Reduced |
| Longaeva Partners L.P. | 57,282 | $1.09M | 0.05% | +57,282 | New |
| Boothbay Fund Management, LLC | 53,964 | $1.02M | 0.02% | +53,964 | New |
| New York State Common Retirement Fund | 53,777 | $1.02M | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 53,523 | $1.01M | 0.00% | +37,934+243.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 52,619 | $997.7K | 0.01% | 00.0% | Unchanged |
| DnB Asset Management AS | 50,558 | $958.6K | 0.00% | −10,503−17.2% | Reduced |
| Farther Finance Advisors, LLC | 50,316 | $952.0K | 0.01% | −6,966−12.2% | Reduced |
| Treasurer of the State of North Carolina | 50,007 | $948.0K | 0.00% | +1,067+2.2% | Added |
| Fieldview Capital Management, LLC | 49,204 | $932.9K | 0.27% | +49,204 | New |
| Barclays PLC | 49,103 | $931.0K | 0.00% | −289,287−85.5% | Reduced |
| BNP Paribas Arbitrage, SA | 49,040 | $929.8K | 0.00% | +11,956+32.2% | Added |
| Ameriprise Financial Inc | 47,667 | $903.8K | 0.00% | −6,345−11.7% | Reduced |
| Axq Capital, LP | 47,268 | $896.2K | 0.12% | −34,251−42.0% | Reduced |
| Handelsbanken Fonder AB | 44,600 | $846.0K | 0.00% | +7,000+18.6% | Added |
| Group One Trading, L.P. | 42,781 | $811.1K | 0.03% | +11,371+36.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 42,383 | $803.6K | 0.00% | +4,392+11.6% | Added |
| Steward Partners Investment Advisory, LLC | 38,847 | $736.5K | 0.00% | +15,802+68.6% | Added |
| Levin Capital Strategies, L.P. | 37,676 | $714.3K | 0.05% | 00.0% | Unchanged |
| Verition Fund Management LLC | 36,163 | $685.6K | 0.01% | −192,827−84.2% | Reduced |