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Equibles

SMMT

Summit Therapeutics Inc.

Company with tickers: SMMT

CIK
1599298
CUSIP
86627T108
Shares Outstanding
776,162,645
13F Activity (30d)
137 filings 134 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 227
Total Value: $2,330,074,647
Total Shares: 122,894,240
Showing 1–100 of 242 holdings by value · page 1 of 3

Institutional Ownership Trend

23 quarters

Superinvestors Holding SMMT

All superinvestors →
Joel Greenblatt $298,183

Holder Concentration

Across 227 13F filers · Δ vs Dec 31, 2025
Top Holder
29.6%
Jun 2023 → Mar 2026 · range 13.1% – 31.4%
+0.3 pts
Top 5
58.8%
Jun 2023 → Mar 2026 · range 42.9% – 74.7%
−5.5 pts
Top 10
75.3%
Jun 2023 → Mar 2026 · range 61.2% – 83.8%
−3.1 pts
HHI
1,170
Jun 2023 → Mar 2026 · range 511 – 1,569
Broadly held−62

Quarterly Activity

vs Dec 31, 2025
New
58
Increased
84
Decreased
52
Sold Out
43
Unchanged
33
Holder count: +15
Institutional value: +7.4%
Shares held: -1.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega UBS Group AG +2,829,596 3,700,315
Mega D. E. Shaw & Co., Inc. +1,826,945 2,242,229
Mega MORGAN STANLEY +724,012 1,650,591
Large Balyasny Asset Management L.P. +498,037 548,335
Mega TWO SIGMA INVESTMENTS, LP +402,937 981,185

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega FMR LLC −2,507,608 10,853,199
Mega CITADEL ADVISORS LLC −2,151,065 1,060,943
Small Polymer Capital Management (HK) LTD −1,288,121 133,034
Mega PRICE T ROWE ASSOCIATES INC /MD/ −1,093,556 8,277,859
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP −855,267 2,410,733

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 5,711,802 $108,295,765
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 5,233,252 $99,222,457
Mega VANGUARD FIDUCIARY TRUST CO 934,394 $17,716,110
Small SUPERSTRING CAPITAL MANAGEMENT LP 892,873 $16,928,872
Large Point72 Asset Management, L.P. 801,086 $15,188,590

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 11,177,220 $195,489,577
Mega NORGES BANK 1,373,943 $24,030,263
Mid Sculptor Capital LP 713,800 $12,484,362
Mid Affinity Asset Advisors, LLC 350,000 $6,121,500
Mid Skandinaviska Enskilda Banken AB (publ) 338,363 $5,917,968
Filter: New 58 Increased 84 Reduced 52 Sold out 43 Unchanged 33
Showing 100 of 242
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Large BAKER BROS. ADVISORS LP $689,974,554 29.61% 36,391,063
Mega FMR LLC $205,776,651 8.83% 10,853,199
Mega BlackRock, Inc. $183,035,248 7.86% 9,653,758
Mega PRICE T ROWE ASSOCIATES INC /MD/ $156,948,206 6.74% 8,277,859
Mega STATE STREET CORP $133,253,913 5.72% 7,028,160
Mega VANGUARD CAPITAL MANAGEMENT LLC $108,295,765 4.65% 5,711,802
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $99,222,457 4.26% 5,233,252
Mega UBS Group AG $69,778,771 2.99% 3,680,315
Mega GEODE CAPITAL MANAGEMENT, LLC $62,868,591 2.70% 3,315,854
Mega D. E. Shaw & Co., Inc. $42,512,661 1.82% 2,242,229
Mega MORGAN STANLEY $31,295,201 1.34% 1,650,591
Large Pictet Asset Management Holding SA $25,087,473 1.08% 1,323,179
Small APEIRON CAPITAL Ltd $24,821,313 1.07% 1,309,141
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $23,497,128 1.01% 1,239,300
Mega TWO SIGMA INVESTMENTS, LP $18,603,267 0.80% 981,185
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $18,218,038 0.78% 960,867
Mega TD Asset Management Inc $18,142,710 0.78% 956,894
Mega VANGUARD FIDUCIARY TRUST CO Bank $17,716,110 0.76% 934,394
Small SUPERSTRING CAPITAL MANAGEMENT LP $16,928,872 0.73% 892,873
Large Point72 Asset Management, L.P. $14,868,166 0.64% 784,186
Mid Rock Springs Capital Management LP $13,461,600 0.58% 710,000
Large Aberdeen Group plc $12,615,301 0.54% 665,364
Large Squarepoint Ops LLC $11,639,107 0.50% 613,877
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $11,450,569 0.49% 603,933
Large LMR Partners LLP $11,383,584 0.49% 600,400
Mega BANK OF AMERICA CORP /DE/ Bank $11,351,199 0.49% 598,692
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $11,239,677 0.48% 592,810
Mega NORTHERN TRUST CORP Bank $11,027,135 0.47% 581,600
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $10,759,800 0.46% 567,500
Large Balyasny Asset Management L.P. $10,396,430 0.45% 548,335
Large Candriam S.C.A. $10,250,951 0.44% 540,662
Mega Invesco Ltd. $9,974,910 0.43% 526,103
Mega CITADEL ADVISORS LLC $9,586,176 0.41% 505,600
Large MARSHALL WACE, LLP $9,010,568 0.39% 475,241
Mega AQR CAPITAL MANAGEMENT LLC $8,413,631 0.36% 443,757
Mega CITADEL ADVISORS LLC $8,375,447 0.36% 441,743
Mega Bank of New York Mellon Corp Bank $7,672,710 0.33% 404,679
Large TUDOR INVESTMENT CORP ET AL $7,299,372 0.31% 384,988
Mega WELLINGTON MANAGEMENT GROUP LLP $6,879,786 0.30% 362,858
Mid QVT Financial LP $6,835,535 0.29% 360,524
Large NOMURA HOLDINGS INC $5,953,079 0.26% 313,981
Mid E Fund Management Co., Ltd. $5,912,202 0.25% 311,825
Mega GOLDMAN SACHS GROUP INC $5,891,402 0.25% 310,728
Large Rafferty Asset Management, LLC $4,912,043 0.21% 259,074
Large ExodusPoint Capital Management, LP $4,858,594 0.21% 256,255
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $4,766,373 0.20% 251,391
Mega Nuveen, LLC $4,626,087 0.20% 243,992
Mega DEUTSCHE BANK AG\ Bank $4,508,460 0.19% 237,788
Large Caption Management, LLC $4,360,800 0.19% 230,000
Large Woodline Partners LP $4,067,052 0.17% 214,507
Mega CITIGROUP INC $3,775,561 0.16% 199,133
Mega JANE STREET GROUP, LLC $3,727,536 0.16% 196,600
Small GRIFFIN ASSET MANAGEMENT, INC. $3,637,893 0.16% 191,872
Mega CITIGROUP INC $2,859,168 0.12% 150,800
Mid China Universal Asset Management Co., Ltd. $2,608,820 0.11% 137,596
Small Polymer Capital Management (HK) LTD $2,522,324 0.11% 133,034
Large VOYA INVESTMENT MANAGEMENT LLC $2,469,293 0.11% 130,237
Mega RHUMBLINE ADVISERS $2,456,116 0.11% 129,542
Mega MILLENNIUM MANAGEMENT LLC $2,394,136 0.10% 126,273
Large Tidal Investments LLC $2,281,153 0.10% 120,314
Mega WELLS FARGO & COMPANY/MN $2,280,906 0.10% 120,301
Mid Y-Intercept (Hong Kong) Ltd $2,268,658 0.10% 119,655
Mid Tema ETFs LLC Mutual Fund $2,266,307 0.10% 119,531
Mid Jump Financial, LLC $2,194,392 0.09% 115,738
Large Cerity Partners LLC $2,157,381 0.09% 113,786
Mega CITADEL ADVISORS LLC $2,153,856 0.09% 113,600
Mid PROFUND ADVISORS LLC $2,141,076 0.09% 112,926
Mid Illinois Municipal Retirement Fund Pension $2,121,510 0.09% 111,894
Mega BANK OF MONTREAL /CAN/ Bank $2,046,901 0.09% 107,959
Mega JANE STREET GROUP, LLC $1,958,568 0.08% 103,300
Large Jefferies Financial Group Inc. $1,896,000 0.08% 100,000
Large NOMURA HOLDINGS INC $1,856,184 0.08% 97,900
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $1,820,330 0.08% 96,009
Mid Beacon Pointe Advisors, LLC $1,789,710 0.08% 94,394
Mid ADAR1 Capital Management, LLC $1,741,836 0.07% 91,869
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $1,725,360 0.07% 91,000
Small NEXTBio Capital Management LP $1,701,034 0.07% 89,717
Mega DIMENSIONAL FUND ADVISORS LP $1,677,882 0.07% 88,496
Large Focus Partners Wealth $1,591,123 0.07% 83,920
Mid DARK FOREST CAPITAL MANAGEMENT LP $1,531,588 0.07% 80,780
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $1,511,036 0.06% 79,696
Large Quantinno Capital Management LP $1,399,911 0.06% 73,835
Small SECTORAL ASSET MANAGEMENT INC $1,319,900 0.06% 69,615
Large GUGGENHEIM CAPITAL LLC $1,258,981 0.05% 66,402
Mega JPMORGAN CHASE & CO $1,223,942 0.05% 64,554
Small Wealth Management Partners, LLC $1,209,344 0.05% 63,784
Large STATE OF WISCONSIN INVESTMENT BOARD $1,185,663 0.05% 62,535
Small Havemeyer Place LP $1,175,311 0.05% 61,989
Mega Vanguard Global Advisers, LLC $1,159,138 0.05% 61,136
Large Assenagon Asset Management S.A. $1,130,414 0.05% 59,621
Large WORLDQUANT MILLENNIUM ADVISORS LLC $1,104,837 0.05% 58,272
Mid Longaeva Partners L.P. $1,086,066 0.05% 57,282
Mid BOOTHBAY FUND MANAGEMENT, LLC $1,023,157 0.04% 53,964
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $1,019,611 0.04% 53,777
Large SG Americas Securities, LLC Broker-Dealer $1,014,796 0.04% 53,523
Large Police & Firemen's Retirement System of New Jersey Pension $997,656 0.04% 52,619
Large DNB Asset Management AS $958,579 0.04% 50,558
Mid Farther Finance Advisors, LLC $953,991 0.04% 50,316
Large LMR Partners LLP $949,896 0.04% 50,100
Large Treasurer of the State of North Carolina $948,132 0.04% 50,007

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