DaveManuel.com · Institutional Ownership · Who Owns It
SUMMIT THERAPEUTICS INC (SMMT)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
249
Reporting holders
$2.1B
Reported value
17.0%
Of shares outstanding
2.8%
Calls
2.5%
Puts
+24
Holder change
Institutions report 136,009,865 shares against 797,749,602 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BAKER BROS. ADVISORS LP | $477.7M | 32,786,348 | 2.39% | 9q | -9.9%-$52.5M |
| FMR LLC | $146.3M | 10,043,947 | 0.01% | 13q | -7.5%-$11.8M |
| STATE STREET CORP | $139.0M | 9,536,796 | 0.00% | 15q | +35.7%+$36.6M |
| BlackRock, Inc. | $138.8M | 9,529,041 | 0.00% | 8q | -1.3%-$1.8M |
| VANGUARD CAPITAL MANAGEMENT LLC | $83.6M | 5,734,484 | 0.00% | 2q | HELD |
| UBS Group AG | $77.3M incl. $1.1M options CALL | 5,233,798 | 0.01% | 24q | +42.2%+$22.9M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $73.5M | 5,042,190 | 0.00% | 2q | -3.7%-$2.8M |
| GOLDMAN SACHS GROUP INC | $65.8M | 4,513,399 | 0.01% | 23q | +1352.5%+$61.2M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $56.7M | 3,893,820 | 0.01% | 13q | -53.0%-$63.9M |
| Point72 Asset Management, L.P. | $53.9M | 3,697,803 | 0.06% | 2q | +371.5%+$42.5M |
| GEODE CAPITAL MANAGEMENT, LLC | $50.0M | 3,427,263 | 0.00% | 24q | +3.4%+$1.6M |
| CITADEL ADVISORS LLC | $41.9M incl. $16.7M options CALL+PUT | 1,725,716 | 0.00% | 11q | +290.7%+$31.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $35.0M incl. $27.4M options CALL+PUT | 521,339 | 0.00% | 17q | -13.7%-$5.5M |
| MILLENNIUM MANAGEMENT LLC | $34.2M | 2,349,081 | 0.01% | 9q | +1760.3%+$32.4M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $29.0M | 1,989,591 | 0.04% | new | NEW |
| Balyasny Asset Management L.P. | $27.7M | 1,904,254 | 0.03% | 9q | +247.3%+$19.8M |
| Squarepoint Ops LLC | $26.7M incl. $3.5M options CALL | 1,590,736 | 0.03% | 7q | +159.1%+$16.4M |
| Aberdeen Group plc | $24.7M | 1,693,626 | 0.03% | 8q | +154.5%+$15.0M |
| MORGAN STANLEY | $21.1M | 1,450,019 | 0.00% | 24q | -12.2%-$2.9M |
| NORGES BANK | $20.1M | 1,382,519 | 0.00% | 5q | +0.6%+$125.0K |
| Logos Global Management LP | $19.7M | 1,350,000 | 0.85% | new | NEW |
| Octagon Capital Advisors LP | $18.2M | 1,250,000 | 1.64% | new | NEW |
| D. E. Shaw & Co., Inc. | $18.1M | 1,243,556 | 0.01% | 9q | -44.5%-$14.6M |
| Kynam Capital Management, LP | $17.5M | 1,200,000 | 0.97% | new | NEW |
| Pictet Asset Management Holding SA | $16.4M | 1,134,299 | 0.02% | 10q | -14.3%-$2.7M |
| DIADEMA PARTNERS LP | $16.3M incl. $15.4M options CALL+PUT | 60,000 | 2.06% | new | NEW |
| LMR Partners LLP | $14.8M incl. $13.4M options CALL+PUT | 96,177 | 0.06% | 9q | +181.9%+$9.6M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $14.2M | 976,851 | 0.00% | 15q | +1.7%+$232.9K |
| VANGUARD FIDUCIARY TRUST CO | $14.1M | 966,585 | 0.00% | 2q | +3.4%+$469.0K |
| APEIRON CAPITAL Ltd | $14.0M | 961,866 | 9.00% | 5q | -26.5%-$5.1M |
| BANK OF AMERICA CORP /DE/ | $12.6M | 864,983 | 0.00% | 16q | +44.5%+$3.9M |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $12.0M | 835,963 | 0.01% | 6q | +232.5%+$8.4M |
| CITIGROUP INC | $10.8M incl. $437.1K options CALL | 714,000 | 0.00% | 24q | +258.6%+$7.8M |
| Rock Springs Capital Management LP | $10.4M | 715,000 | 0.51% | 8q | +0.7%+$72.8K |
| TWO SIGMA INVESTMENTS, LP | $10.2M | 696,714 | 0.01% | 4q | -29.0%-$4.1M |
| NORTHERN TRUST CORP | $9.2M | 633,794 | 0.00% | 16q | +9.0%+$760.5K |
| JANE STREET GROUP, LLC | $9.2M CALL+PUT | options only | 0.00% | 11q | OPTIONS |
| MARSHALL WACE, LLP | $8.4M | 577,190 | 0.01% | 2q | +21.5%+$1.5M |
| AQR CAPITAL MANAGEMENT LLC | $7.9M | 542,178 | 0.00% | 9q | +22.2%+$1.4M |
| Candriam S.C.A. | $7.8M | 532,432 | 0.03% | 8q | -1.5%-$119.8K |
| Caption Management, LLC | $7.7M incl. $6.2M options CALL+PUT | 100,000 | 0.04% | 6q | HELD |
| Elmind Capital, LP | $7.2M | 493,820 | 1.81% | new | NEW |
| WELLINGTON MANAGEMENT GROUP LLP | $6.4M | 441,934 | 0.00% | 2q | +21.8%+$1.2M |
| Bank of New York Mellon Corp | $6.3M | 431,299 | 0.00% | 15q | +6.6%+$387.9K |
| WORLDQUANT MILLENNIUM ADVISORS LLC | $6.3M | 431,028 | 0.02% | 3q | +639.7%+$5.4M |
| TD Asset Management Inc | $6.2M | 426,084 | 0.01% | 9q | -55.5%-$7.7M |
| Invesco Ltd. | $6.1M | 416,847 | 0.00% | 14q | -20.8%-$1.6M |
| Jump Financial, LLC | $5.7M | 389,618 | 0.05% | 2q | +236.6%+$4.0M |
| QVT Financial LP | $5.3M | 360,524 | 0.31% | 9q | HELD |
| Ghisallo Capital Management LLC | $5.1M | 350,000 | 0.10% | new | NEW |
| HOHIMER WEALTH MANAGEMENT, LLC | $4.9M | 339,100 | 0.49% | new | NEW |
| GROUP ONE TRADING LLC | $4.4M incl. $3.7M options CALL+PUT | 44,450 | 0.01% | 22q | +3.9%+$165.0K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $4.3M | 298,000 | 0.00% | 13q | -49.7%-$4.3M |
| Nuveen, LLC | $4.3M | 294,867 | 0.00% | 6q | +20.9%+$741.2K |
| IMC-Chicago, LLC | $4.2M CALL+PUT | options only | 0.00% | 5q | OPTIONS |
| BNP PARIBAS FINANCIAL MARKETS | $4.0M | 274,894 | 0.00% | 7q | +460.6%+$3.3M |
| SIMPLEX TRADING, LLC | $3.9M incl. $3.9M options CALL+PUT | 1,968 | 0.00% | 15q | -76.6%-$12.8M |
| HRT FINANCIAL LP | $3.6M incl. $682.0K options OPT | 244,553 | 0.01% | new | NEW |
| DARK FOREST CAPITAL MANAGEMENT LP | $3.5M | 243,607 | 0.23% | 4q | +201.6%+$2.4M |
| DEUTSCHE BANK AG\ | $3.5M | 239,347 | 0.00% | 13q | +0.7%+$22.7K |
| NOMURA HOLDINGS INC | $3.3M incl. $1.7M options CALL+PUT | 112,359 | 0.00% | 5q | -64.2%-$6.0M |
| Polymer Capital Management (HK) LTD | $3.3M | 224,853 | 0.17% | 7q | +69.0%+$1.3M |
| SECTORAL ASSET MANAGEMENT INC | $3.2M | 220,180 | 2.24% | 14q | +216.3%+$2.2M |
| Woodline Partners LP | $3.1M | 214,507 | 0.01% | 5q | HELD |
| BARCLAYS PLC | $3.1M | 210,207 | 0.00% | 18q | +328.1%+$2.3M |
| WELLS FARGO & COMPANY/MN | $3.0M | 208,413 | 0.00% | 24q | +73.2%+$1.3M |
| Rafferty Asset Management, LLC | $3.0M | 206,625 | 0.01% | 10q | -20.2%-$764.2K |
| VOYA INVESTMENT MANAGEMENT LLC | $2.9M | 199,390 | 0.00% | 13q | +53.1%+$1.0M |
| GRIFFIN ASSET MANAGEMENT, INC. | $2.8M | 193,582 | 0.30% | 8q | +0.9%+$24.9K |
| ADAR1 Capital Management, LLC | $2.8M | 191,869 | 0.13% | 6q | +108.9%+$1.5M |
| Trexquant Investment LP | $2.7M | 184,013 | 0.02% | new | NEW |
| Focus Partners Wealth | $2.5M | 170,338 | 0.00% | 8q | +103.0%+$1.3M |
| China Universal Asset Management Co., Ltd. | $1.9M | 133,527 | 0.12% | 16q | -3.0%-$59.3K |
| DIMENSIONAL FUND ADVISORS LP | $1.9M | 127,978 | 0.00% | 8q | +44.6%+$574.8K |
| RHUMBLINE ADVISERS | $1.8M | 126,895 | 0.00% | 13q | -2.0%-$38.6K |
| HSBC HOLDINGS PLC | $1.8M | 120,560 | 0.00% | new | NEW |
| Tidal Investments LLC | $1.8M | 121,097 | 0.00% | 2q | +0.7%+$11.4K |
| Tema ETFs LLC | $1.8M | 121,097 | 0.06% | 7q | +1.3%+$22.8K |
| Assenagon Asset Management S.A. | $1.7M | 119,242 | 0.00% | 3q | +100.0%+$868.7K |
| Cerity Partners LLC | $1.7M | 114,505 | 0.00% | 8q | +0.6%+$10.5K |
| Quantinno Capital Management LP | $1.7M | 113,452 | 0.00% | 3q | +53.7%+$577.2K |
| BANK OF MONTREAL /CAN/ | $1.5M | 104,625 | 0.00% | 8q | -3.1%-$48.6K |
| PROFUND ADVISORS LLC | $1.5M | 100,549 | 0.04% | 10q | -11.0%-$180.3K |
| Affinity Asset Advisors, LLC | $1.5M CALL | options only | 0.07% | new | OPTIONS |
| Beacon Pointe Advisors, LLC | $1.4M | 98,114 | 0.01% | 4q | +3.9%+$54.2K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $1.4M | 94,229 | 0.00% | 9q | -1.9%-$25.9K |
| AXQ CAPITAL, LP | $1.4M | 93,624 | 0.15% | 4q | +98.1%+$675.4K |
| Schonfeld Strategic Advisors LLC | $1.3M | 91,557 | 0.00% | 3q | +306.8%+$1.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1.3M | 90,338 | 0.00% | 5q | +13.4%+$155.1K |
| Wealth Management Partners, LLC | $1.3M | 89,274 | 0.31% | 11q | +40.0%+$371.4K |
| XTX Topco Ltd | $1.2M | 81,402 | 0.02% | new | NEW |
| Seven Fleet Capital Management LP | $1.1M | 73,300 | 0.18% | new | NEW |
| JPMORGAN CHASE & CO | $1.1M | 68,169 | 0.00% | 24q | +5.6%+$56.5K |
| NICOLET BANKSHARES INC | $1.1M | 72,593 | 0.03% | new | NEW |
| Engineers Gate Manager LP | $988.9K | 67,871 | 0.01% | new | NEW |
| GUGGENHEIM CAPITAL LLC | $988.4K | 67,835 | 0.01% | 7q | +2.2%+$20.9K |
| VARCOV Co. | $931.9K | 63,957 | 0.35% | 2q | +172.1%+$589.3K |
| Illinois Municipal Retirement Fund | $914.0K | 62,734 | 0.01% | 5q | -43.9%-$716.3K |
| Bridgefront Capital, LLC | $880.3K | 60,416 | 0.23% | new | NEW |
| Police & Firemen's Retirement System of New Jersey | $879.1K | 60,337 | 0.01% | 7q | +14.7%+$112.5K |
Showing the largest 100 of 249 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-29 | 2026-09-28 | Material agreement entered Charter or bylaws amended | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-04 | Soni Manmeet Singh | COO and CFO | Bought | 50,000 | $722.2K ×2 |
Ten percent owners and entities
Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-12 | DUGGAN ROBERT W | Co-Chief Executive Officer | Bought | 3,810,000 | $50.0M |
| 2026-06-12 | Zanganeh Mahkam | Co-Chief Executive Officer | Bought | 3,810,000 | $50.0M |
| 2026-06-04 | DUGGAN ROBERT W | Co-Chief Executive Officer | Bought | 100,000 | $1.5M |
| 2026-06-04 | Zanganeh Mahkam | Co-Chief Executive Officer | Bought | 100,000 | $1.5M |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 56 | $31.4M | 1,863,862 | 21 | 20 | 9 | 0.0% |
| Q2 2026 | 249 | $2.1B | 136,009,865 | 58 | 98 | 60 | 5.3% |
| Q1 2026 | 225 | $2.3B | 118,916,541 | 50 | 82 | 48 | 3.7% |
| Q4 2025 | 212 | $2.2B | 117,888,640 | 26 | 68 | 66 | 5.7% |
| Q3 2025 | 243 | $2.3B | 103,039,030 | 51 | 73 | 64 | 8.8% |
| Q2 2025 | 248 | $2.3B | 97,952,045 | 75 | 62 | 76 | 8.9% |
| Q1 2025 | 224 | $2.0B | 99,000,006 | 45 | 72 | 63 | 5.5% |
| Q4 2024 | 213 | $1.7B | 92,633,788 | 56 | 72 | 37 | 5.2% |
| Q3 2024 | 172 | $2.0B | 84,641,944 | 67 | 47 | 34 | 6.7% |
| Q2 2024 | 128 | $587.1M | 72,341,612 | 44 | 19 | 48 | 3.9% |
| Q1 2024 | 105 | $213.9M | 51,325,205 | 17 | 39 | 27 | 0.5% |
| Q4 2023 | 99 | $88.2M | 33,391,910 | 9 | 35 | 17 | 1.1% |
| Q3 2023 | 93 | $62.7M | 32,322,111 | 6 | 32 | 21 | 3.6% |
| Q2 2023 | 100 | $88.5M | 34,981,630 | 35 | 24 | 24 | 0.8% |
| Q1 2023 | 92 | $40.9M | 21,183,953 | 35 | 35 | 11 | 9.4% |
| Q4 2022 | 63 | $44.8M | 8,107,459 | 33 | 16 | 7 | 22.8% |
| Q3 2022 | 43 | $3.9M | 3,191,944 | 12 | 13 | 6 | 2.4% |
| Q2 2022 | 38 | $8.5M | 8,472,995 | 9 | 5 | 14 | 0.7% |
| Q1 2022 | 51 | $27.8M | 11,016,858 | 7 | 10 | 17 | 0.1% |
| Q4 2021 | 53 | $30.3M | 11,125,930 | 5 | 14 | 17 | 0.8% |
| Q3 2021 | 56 | $74.7M | 14,733,608 | 3 | 28 | 13 | 1.0% |
| Q2 2021 | 59 | $111.4M | 14,765,584 | 28 | 17 | 12 | 1.2% |
| Q1 2021 | 40 | $73.2M | 12,459,688 | 8 | 17 | 8 | 0.1% |
| Q4 2020 | 37 | $52.3M | 11,120,961 | 23 | 4 | 4 | 0.0% |
| Q3 2020 | 19 | $30.4M | 8,817,222 | 17 | 0 | 0 | 0.0% |
| Q2 2020 | 20 | $27.3M | 9,185,622 | 12 | 3 | 4 | 0.0% |
| Q1 2020 | 10 | $19.9M | 8,401,772 | 3 | 2 | 3 | 0.0% |
| Q4 2019 | 12 | $4.4M | 2,744,086 | 4 | 2 | 1 | 0.0% |
| Q3 2019 | 12 | $4.8M | 2,658,272 | 3 | 1 | 2 | 0.0% |
| Q2 2019 | 10 | $3.4M | 2,664,012 | 0 | 3 | 3 | 0.0% |
| Q1 2019 | 13 | $4.8M | 2,594,956 | 5 | 3 | 1 | 0.0% |
| Q4 2018 | 11 | $3.3M | 2,883,963 | 1 | 0 | 0 | 0.0% |