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 |
|---|---|---|---|---|---|
| Squarepoint Ops LLC | 613,877 | $11.6M | 0.03% | −101,533−14.2% | Reduced |
| Standard Life Aberdeen plc | 665,364 | $12.6M | 0.02% | −261,807−28.2% | Reduced |
| Rock Springs Capital Management LP | 710,000 | $13.5M | 0.79% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 784,186 | $14.9M | 0.03% | +784,186 | New |
| Superstring Capital Management LP | 892,873 | $16.9M | 12.09% | +892,873 | New |
| Vanguard Fiduciary Trust Co | 934,394 | $17.7M | 0.00% | +934,394 | New |
| TD Asset Management Inc | 956,894 | $18.1M | 0.01% | −248,378−20.6% | Reduced |
| Charles Schwab Investment Management Inc | 960,867 | $18.2M | 0.00% | +68,238+7.6% | Added |
| Two Sigma Investments, LP | 981,185 | $18.6M | 0.02% | +402,937+69.7% | Added |
| Pictet Asset Management Holding SA | 1,323,179 | $24.0M | 0.03% | −60,596−4.4% | Reduced |
| Apeiron Capital Ltd | 1,309,141 | $24.8M | 23.22% | −1000.0% | Reduced |
| Morgan Stanley | 1,650,591 | $31.3M | 0.00% | +724,012+78.1% | Added |
| D. E. Shaw & Co., Inc. | 2,242,229 | $42.5M | 0.03% | +1,826,945+439.9% | Added |
| Geode Capital Management, LLC | 3,315,854 | $62.9M | 0.00% | +168,374+5.3% | Added |
| UBS Group AG | 3,680,315 | $69.8M | 0.01% | +2,809,596+322.7% | Added |
| Vanguard Portfolio Management LLC | 5,233,252 | $99.2M | 0.01% | +5,233,252 | New |
| Vanguard Capital Management LLC | 5,711,802 | $108.3M | 0.00% | +5,711,802 | New |
| State Street Corp | 7,028,160 | $133.3M | 0.00% | +391,799+5.9% | Added |
| Price T Rowe Associates Inc | 8,277,859 | $156.9M | 0.02% | −1,093,556−11.7% | Reduced |
| BlackRock, Inc. | 9,653,758 | $183.0M | 0.00% | +291,837+3.1% | Added |
| FMR LLC | 10,853,199 | $205.8M | 0.01% | −2,507,608−18.8% | Reduced |
| Baker Bros. Advisors LP | 36,391,063 | $690.0M | 3.96% | 00.0% | Unchanged |
| Sculptor Capital LP | 0 | $0 | 0.00% | −356,900−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −338,363−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −306,184−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −113,391−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −98,766−100.0% | Sold out |
| NEOS Investment Management LLC | 0 | $0 | 0.00% | −97,217−100.0% | Sold out |
| Polianta Ltd | 0 | $0 | 0.00% | −74,700−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −73,497−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −59,945−100.0% | Sold out |
| Vident Advisory, LLC | 0 | $0 | 0.00% | −35,880−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −29,704−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −28,115−100.0% | Sold out |
| Wealth Enhancement Advisory Services, LLC | 0 | $0 | 0.00% | −20,875−100.0% | Sold out |
| Cynosure Management, LLC | 0 | $0 | 0.00% | −22,070−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −16,419−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −15,407−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −13,160−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −11,533−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −11,440−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −10,700−100.0% | Sold out |
| Sargent Investment Group, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −9,465−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −6,188−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −2,157−100.0% | Sold out |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −1,873−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −1,622−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −424−100.0% | Sold out |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| J.Safra Asset Management Corp | 0 | $0 | 0.00% | −83−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −44−100.0% | Sold out |
| Rialto Wealth Management, LLC | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| United Financial Planning Group LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| JFS Wealth Advisors, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Bay Harbor Wealth Management, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| SJS Investment Consulting Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| Litman Gregory Asset Management LLC | – | – | – | – | Not filed |
| ORG Partners LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |