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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, Q3 2025

Institutional positions in Summit Therapeutics Inc. as of Sep 30, 2025. 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
232
+10 vs. Q2 2025
Shares held
102.9M
+6.43M (+6.7%) vs. Q2 2025
Total value
$2.13B
+$76.2M (+3.7%) vs. Q2 2025
New holders
51
77 more added
Sold out
41
68 more reduced

4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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.

Institutional holdersQ3 2025: 232 institutions
Q1 2021: 38 institutionsQ2 2021: 54 institutionsQ3 2021: 51 institutionsQ4 2021: 52 institutionsQ1 2022: 48 institutionsQ2 2022: 41 institutionsQ3 2022: 42 institutionsQ4 2022: 57 institutionsQ1 2023: 86 institutionsQ2 2023: 96 institutionsQ3 2023: 91 institutionsQ4 2023: 95 institutionsQ1 2024: 103 institutionsQ2 2024: 121 institutionsQ3 2024: 164 institutionsQ4 2024: 196 institutionsQ1 2025: 202 institutionsQ2 2025: 226 institutionsQ3 2025: 232 institutionsQ4 2025: 206 institutionsQ1 2026: 222 institutionsQ2 2026: 242 institutions
Value heldQ3 2025: $2.13B
Q1 2021: $54.5MQ2 2021: $82.4MQ3 2021: $55.3MQ4 2021: $30.0MQ1 2022: $27.4MQ2 2022: $8.46MQ3 2022: $3.78MQ4 2022: $34.5MQ1 2023: $37.0MQ2 2023: $87.6MQ3 2023: $60.4MQ4 2023: $84.4MQ1 2024: $205.5MQ2 2024: $563.0MQ3 2024: $1.85BQ4 2024: $1.65BQ1 2025: $1.91BQ2 2025: $2.08BQ3 2025: $2.13BQ4 2025: $2.06BQ1 2026: $2.25BQ2 2026: $1.98B
Institutions holding SMMT and their total value by quarter
QuarterHoldersValue
Q2 2026242$1.98B
Q1 2026222$2.25B
Q4 2025206$2.06B
Q3 2025232$2.13B
Q2 2025226$2.08B
Q1 2025202$1.91B
Q4 2024196$1.65B
Q3 2024164$1.85B
Q2 2024121$563.0M
Q1 2024103$205.5M
Q4 202395$84.4M
Q3 202391$60.4M
Q2 202396$87.6M
Q1 202386$37.0M
Q4 202257$34.5M
Q3 202242$3.78M
Q2 202241$8.46M
Q1 202248$27.4M
Q4 202152$30.0M
Q3 202151$55.3M
Q2 202154$82.4M
Q1 202138$54.5M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Summit Therapeutics Inc.; share changes are against Q2 2025.

Institutions holding SMMT in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
T. Rowe Price Investment Management, Inc.68$2.00K0.00%+68New
Groupe la Francaise110$1.98K0.00%+110New
J.Safra Asset Management Corp83$1.72K0.00%00.0%Unchanged
TD Private Client Wealth LLC74$1.53K0.00%00.0%Unchanged
Park Place Capital Corp62$1.28K0.00%+62New
Cape Investment Advisory, Inc.60$1.24K0.00%00.0%Unchanged
Whittier Trust Co of Nevada Inc57$1.22K0.00%00.0%Unchanged
UMA Financial Services, Inc.55$1.14K0.00%00.0%Unchanged
Quent Capital, LLC51$1.05K0.00%+51New
Hemington Wealth Management72$1.00K0.00%−21−22.6%Reduced
CVA Family Office, LLC40$8260.00%00.0%Unchanged
ORG Partners LLC40$8260.00%00.0%Unchanged
Root Financial Partners, LLC36$7440.00%+36New
JFS Wealth Advisors, LLC35$7240.00%−18−34.0%Reduced
Rockefeller Capital Management L.P.33$6820.00%+33New
Rise Advisors, LLC28$5780.00%+28New
Fortitude Family Office, LLC28$5780.00%+28New
DiNuzzo Private Wealth, Inc.18$4270.00%−7−28.0%Reduced
Parkside Financial Bank & Trust18$3720.00%+18New
Wealthspire Advisors, LLC10$2070.00%+10New
True Wealth Design, LLC7$1450.00%−11−61.1%Reduced
SJS Investment Consulting Inc.7$1450.00%00.0%Unchanged
MV Capital Management, Inc.6$1240.00%+6New
Bay Harbor Wealth Management, LLC6$1230.00%+6New
Rakuten Securities, Inc.5$1030.00%+5New
Transamerica Financial Advisors, Inc.4$830.00%+4New
Clearstead Advisors, LLC2$420.00%+2New
Seneschal Advisors, LLC2$420.00%+2New
HFM Investment Advisors, LLC2$410.00%00.0%Unchanged
Optiver Holding B.V.2$410.00%+2New
Rothschild Investment LLC1$210.00%+1New
Cloud Capital Management, LLC3$00.00%+3New
Rockland Trust Co0$00.00%−400,000−100.0%Sold out
Marshall Wace, LLP0$00.00%−271,641−100.0%Sold out
Jane Street Group, LLC0$00.00%−249,710−100.0%Sold out
HRT Financial LP0$00.00%−241,685−100.0%Sold out
Readystate Asset Management LP0$00.00%−227,860−100.0%Sold out
Twinbeech Capital LP0$00.00%−191,119−100.0%Sold out
Granahan Investment Management Inc0$00.00%−185,640−100.0%Sold out
Sovran Advisors, LLC0$00.00%−150,047−100.0%Sold out
Franklin Resources Inc0$00.00%−139,146−100.0%Sold out
BI Asset Management Fondsmaeglerselskab A/S0$00.00%−125,100−100.0%Sold out
Jain Global LLC0$00.00%−87,943−100.0%Sold out
Engineers Gate Manager LP0$00.00%−87,830−100.0%Sold out
Rhenman & Partners Asset Management AB0$00.00%−78,000−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−66,969−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−58,400−100.0%Sold out
Neo Ivy Capital Management0$00.00%−40,169−100.0%Sold out
Wellington Management Group LLP0$00.00%−39,694−100.0%Sold out
Mercer Global Advisors Inc0$00.00%−36,452−100.0%Sold out
Quantessence Capital LLC0$00.00%−36,187−100.0%Sold out
Kestra Advisory Services, LLC0$00.00%−33,423−100.0%Sold out
Inceptionr LLC0$00.00%−33,096−100.0%Sold out
Cambridge Investment Research Advisors, Inc.0$00.00%−30,820−100.0%Sold out
SeaCrest Wealth Management, LLC0$00.00%−22,717−100.0%Sold out
Catalyst Funds Management Pty Ltd0$00.00%−22,300−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−16,963−100.0%Sold out
Florida Financial Advisors, LLC0$00.00%−15,921−100.0%Sold out
Universal- Beteiligungs- und Servicegesellschaft mbH0$00.00%−13,670−100.0%Sold out
Sanctuary Advisors, LLC0$00.00%−13,244−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−13,149−100.0%Sold out
Change Path, LLC0$00.00%−11,670−100.0%Sold out
Oxford Asset Management LLP0$00.00%−11,535−100.0%Sold out
Jump Financial, LLC0$00.00%−11,452−100.0%Sold out
Clear Street Markets LLC0$00.00%−10,602−100.0%Sold out
Arista Wealth Management, LLC0$00.00%−10,000−100.0%Sold out
Macquarie Group Ltd0$00.00%−6,705−100.0%Sold out
Diadema Partners LP0$00.00%−932−100.0%Sold out
Quarry LP0$00.00%−488−100.0%Sold out
Persistent Asset Partners Ltd0$00.00%−331−100.0%Sold out
Proffitt & Goodson Inc0$00.00%−315−100.0%Sold out
Geneos Wealth Management Inc.0$00.00%−235−100.0%Sold out
Rialto Wealth Management, LLC0$00.00%−20−100.0%Sold out
Norges Bank––––Not filed
E Fund Management Co., Ltd.––––Not filed
First Horizon Advisors, Inc.––––Not filed
Parkworth Wealth Management, Inc.––––Not filed