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 |
|---|---|---|---|---|---|
| ProShare Advisors LLC | 34,686 | $657.6K | 0.00% | +1,805+5.5% | Added |
| LMR Partners LLP | 34,122 | $647.0K | 0.01% | −41,078−54.6% | Reduced |
| Public Employees Retirement System of Ohio | 33,999 | $644.6K | 0.00% | −1,159−3.3% | Reduced |
| Legal & General Group Plc | 31,892 | $604.7K | 0.00% | +4,533+16.6% | Added |
| Cetera Investment Advisers | 29,738 | $563.8K | 0.00% | +29,738 | New |
| Vanguard Asset Management, Ltd | 28,611 | $542.5K | 0.00% | +28,611 | New |
| Machina Capital S.A.S. | 26,199 | $496.7K | 0.10% | +14,563+125.2% | Added |
| Great Valley Advisor Group, Inc. | 25,640 | $486.1K | 0.01% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 24,289 | $460.5K | 0.00% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 23,916 | $453.0K | 0.02% | +23,916 | New |
| Tower Research Capital LLC (TRC) | 23,703 | $449.4K | 0.01% | +23,703 | New |
| VARCOV Co. | 23,509 | $445.7K | 0.17% | +23,509 | New |
| Capstone Capital Management Ltd | 23,146 | $438.8K | 0.44% | −5,044−17.9% | Reduced |
| Schonfeld Strategic Advisors LLC | 22,505 | $426.7K | 0.00% | −4,799−17.6% | Reduced |
| Winton Group Ltd | 22,400 | $424.7K | 0.01% | +22,400 | New |
| Allianz Asset Management GmbH | 22,200 | $420.9K | 0.00% | 00.0% | Unchanged |
| Entropy Technologies, LP | 21,783 | $413.0K | 0.02% | −3,379−13.4% | Reduced |
| Raymond James Financial Inc | 20,904 | $396.3K | 0.00% | +3,053+17.1% | Added |
| Xponance, Inc. | 20,075 | $380.6K | 0.00% | +2,572+14.7% | Added |
| Prelude Capital Management, LLC | 20,000 | $379.2K | 0.03% | +20,000 | New |
| Vance Wealth, Inc. | 19,983 | $378.9K | 0.11% | 00.0% | Unchanged |
| Q3 Asset Management | 19,950 | $378.0K | 0.09% | +383+2.0% | Added |
| SEI Investments Co | 19,681 | $373.2K | 0.00% | +9,618+95.6% | Added |
| New York Life Investment Management LLC | 19,521 | $370.1K | 0.00% | +19,521 | New |
| Alliancebernstein L.P. | 19,853 | $347.2K | 0.00% | −753−3.7% | Reduced |
| Russell Investments Group, Ltd. | 17,986 | $341.0K | 0.00% | +1,020+6.0% | Added |
| GF Fund Management Co. Ltd. | 16,720 | $317.0K | 0.01% | +2,091+14.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 18,357 | $311.7K | 0.00% | +1,497+8.9% | Added |
| Bellevue Group AG | 15,858 | $300.7K | 0.01% | +1,596+11.2% | Added |
| Gotham Asset Management, LLC | 15,727 | $298.2K | 0.00% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 15,519 | $294.2K | 0.08% | +378+2.5% | Added |
| Creative Planning | 13,597 | $257.8K | 0.00% | +786+6.1% | Added |
| Three Seasons Wealth, LLC | 12,869 | $244.0K | 0.09% | 00.0% | Unchanged |
| Blankinship & Foster, LLC | 12,777 | $242.3K | 0.05% | 00.0% | Unchanged |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 12,136 | $230.1K | 0.33% | +12,136 | New |
| U.S. Capital Wealth Advisors, LLC | 12,009 | $227.7K | 0.01% | +9+0.1% | Added |
| Lighthouse Investment Partners, LLC | 11,991 | $227.3K | 0.01% | +11,991 | New |
| DRW Securities, LLC | 11,533 | $218.7K | 0.01% | +11,533 | New |
| Advisors Asset Management, Inc. | 10,984 | $208.3K | 0.00% | −141−1.3% | Reduced |
| Jain Global LLC | 10,786 | $204.5K | 0.00% | +10,786 | New |
| Evoke Wealth, LLC | 10,668 | $202.3K | 0.00% | −384−3.5% | Reduced |
| PSP Research LLC | 10,223 | $193.8K | 0.14% | +10,223 | New |
| Willis Investment Counsel | 10,000 | $189.6K | 0.01% | −390−3.8% | Reduced |
| Federation des caisses Desjardins du Quebec | 8,881 | $168.4K | 0.00% | +268+3.1% | Added |
| Simplex Trading, LLC | 8,410 | $159.5K | 0.00% | +8,410 | New |
| Royal Bank of Canada | 7,422 | $141.0K | 0.00% | +4,226+132.2% | Added |
| MetLife Investment Management | 7,186 | $136.2K | 0.00% | −358−4.7% | Reduced |
| Eurizon Capital SGR S.p.A. | 6,908 | $131.0K | 0.00% | −18,754−73.1% | Reduced |
| California State Teachers Retirement System | 6,391 | $121.2K | 0.00% | −879−12.1% | Reduced |
| Advisor Group Holdings, Inc. | 5,398 | $102.3K | 0.00% | +117+2.2% | Added |
| Osterweis Capital Management Inc | 5,000 | $94.8K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 3,732 | $70.8K | 0.00% | +732+24.4% | Added |
| STRS Ohio | 2,794 | $53.0K | 0.00% | −4−0.1% | Reduced |
| Truvestments Capital LLC | 2,603 | $49.4K | 0.01% | 00.0% | Unchanged |
| Adirondack Trust Co | 2,500 | $47.4K | 0.02% | 00.0% | Unchanged |
| National Bank of Canada | 2,223 | $42.2K | 0.00% | +528+31.2% | Added |
| Parallel Advisors, LLC | 2,139 | $40.6K | 0.00% | +2,089+4,178.0% | Added |
| US Bancorp | 1,850 | $35.1K | 0.00% | +1,525+469.2% | Added |
| Larson Financial Group LLC | 1,834 | $34.8K | 0.00% | +11+0.6% | Added |
| GAMMA Investing LLC | 1,639 | $31.1K | 0.00% | +834+103.6% | Added |
| Ball & Co Wealth Management Inc. | 1,500 | $28.0K | 0.02% | +1,500 | New |
| The PNC Financial Services Group, Inc. | 1,243 | $23.6K | 0.00% | +754+154.2% | Added |
| CWM, LLC | 1,131 | $21.4K | 0.00% | +836+283.4% | Added |
| Vermillion Wealth Management, Inc. | 1,000 | $19.0K | 0.01% | +496+98.4% | Added |
| E Fund Management (Hong Kong) Co., Ltd. | 954 | $18.1K | 0.01% | +954 | New |
| Jones Financial Companies LLLP | 1,036 | $17.2K | 0.00% | +488+89.1% | Added |
| CX Institutional | 848 | $16.0K | 0.00% | +848 | New |
| Sterling Capital Management LLC | 836 | $15.9K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 831 | $15.8K | 0.00% | +821+8,210.0% | Added |
| Golden State Wealth Management, LLC | 828 | $15.7K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 662 | $11.2K | 0.00% | +27+4.3% | Added |
| Harbour Investments, Inc. | 520 | $9.86K | 0.00% | +463+812.3% | Added |
| Los Angeles Capital Management LLC | 514 | $9.74K | 0.00% | +514 | New |
| Rosenberg Matthew Hamilton | 501 | $9.50K | 0.00% | 00.0% | Unchanged |
| LRI Investments, LLC | 500 | $9.48K | 0.00% | +500 | New |
| EverSource Wealth Advisors, LLC | 426 | $8.08K | 0.00% | +287+206.5% | Added |
| Sound Income Strategies, LLC | 410 | $7.76K | 0.00% | −595−59.2% | Reduced |
| Covestor Ltd | 360 | $7.00K | 0.00% | −298−45.3% | Reduced |
| AdvisorNet Financial, Inc | 353 | $6.69K | 0.00% | +125+54.8% | Added |
| FIL Ltd | 345 | $6.54K | 0.00% | +345 | New |
| MAI Capital Management | 297 | $5.63K | 0.00% | +297 | New |
| SBI Securities Co., Ltd. | 292 | $5.54K | 0.00% | +3+1.0% | Added |
| WPG Advisers, LLC | 288 | $5.46K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 276 | $5.23K | 0.00% | +39+16.5% | Added |
| Allworth Financial LP | 270 | $5.12K | 0.00% | +201+291.3% | Added |
| IFP Advisors, Inc | 169 | $3.20K | 0.00% | −4,260−96.2% | Reduced |
| Bessemer Group Inc | 135 | $3.00K | 0.00% | −880−86.7% | Reduced |
| Pinnacle Wealth Planning Services, Inc. | 144 | $2.73K | 0.00% | +144 | New |
| Transamerica Financial Advisors, Inc. | 115 | $2.18K | 0.00% | +109+1,816.7% | Added |
| Quent Capital, LLC | 105 | $1.99K | 0.00% | +105 | New |
| SRS Capital Advisors, Inc. | 105 | $1.98K | 0.00% | +11+11.7% | Added |
| Signaturefd, LLC | 96 | $1.82K | 0.00% | +18+23.1% | Added |
| Aster Capital Management (DIFC) Ltd | 91 | $1.75K | 0.00% | +91 | New |
| ZRC Wealth Management, LLC | 91 | $1.73K | 0.00% | +91 | New |
| Toth Financial Advisory Corp | 90 | $1.71K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Trust Services, Inc. | 81 | $1.54K | 0.00% | +81 | New |
| TD Private Client Wealth LLC | 74 | $1.40K | 0.00% | 00.0% | Unchanged |
| Marquette Asset Management, LLC | 44 | $835 | 0.00% | +16+57.1% | Added |
| CVA Family Office, LLC | 40 | $758 | 0.00% | 00.0% | Unchanged |
| Golden State Equity Partners | 40 | $758 | 0.00% | +40 | New |