15.47
price down icon0.51%   -0.08
after-market After Hours: 15.51 0.04 +0.26%
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Summit Therapeutics Inc stock is traded at $15.47, with a volume of 3.20M. It is down -0.51% in the last 24 hours and down -5.96% over the past month. Summit Therapeutics Inc is a biopharmaceutical company that focuses on the discovery, development, and commercialization of novel antibiotics for serious infectious diseases. Its CDI (Clostridiodes difficile infection) product candidate is ridinilazole, an orally administered small molecule antibiotic. It has two geographical segments: the United States and the United Kingdom.
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Previous Close:
$15.55
Open:
$15.46
24h Volume:
3.20M
Relative Volume:
0.64
Market Cap:
$12.34B
Revenue:
$220.00K
Net Income/Loss:
$-1.21B
P/E Ratio:
-9.6452
EPS:
-1.6039
Net Cash Flow:
$-387.48M
1W Performance:
+5.74%
1M Performance:
-5.96%
6M Performance:
-30.53%
1Y Performance:
-17.49%
1-Day Range:
Value
$15.07
$15.55
1-Week Range:
Value
$14.83
$16.35
52-Week Range:
Value
$12.07
$29.23

Summit Therapeutics Inc Stock (SMMT) Company Profile

Name
Name
Summit Therapeutics Inc
Name
Phone
305-203-2034
Name
Address
601 BRICKELL KEY DRIVE, MIAMI
Name
Employee
265
Name
Twitter
@summitplc
Name
Next Earnings Date
2026-10-26
Name
Latest SEC Filings
Name
SMMT's Discussions on Twitter

Compare SMMT vs VRTX, REGN, MRNA, ARGX, ONC

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
SMMT icon
SMMT
Summit Therapeutics Inc
15.47 12.34B 220.00K -1.21B -387.48M -1.6039
VRTX icon
VRTX
Vertex Pharmaceuticals Inc
523.93 132.80B 12.34B 4.34B 3.71B 16.87
REGN icon
REGN
Regeneron Pharmaceuticals Inc
805.02 82.88B 14.92B 4.42B 3.79B 41.04
MRNA icon
MRNA
Moderna Inc
200.10 79.89B 2.23B -3.19B -1.60B -8.1462
ARGX icon
ARGX
Argen X Se Adr
873.71 54.94B 4.16B 1.29B 734.26M 19.58
ONC icon
ONC
Beone Medicines Ltd Adr
377.63 42.72B 5.76B 514.49M 1.10B 4.4813

Summit Therapeutics Inc Stock (SMMT) Upgrades & Downgrades

Date Action Analyst Rating Change
Sep-09-26 Upgrade Jefferies Hold → Buy
Aug-25-26 Upgrade Bernstein Underperform → Mkt Perform
Aug-12-26 Upgrade Leerink Partners Underperform → Market Perform
May-22-26 Downgrade H.C. Wainwright Buy → Neutral
Apr-08-26 Initiated Stifel Buy
Mar-16-26 Downgrade Jefferies Buy → Hold
Dec-17-25 Upgrade Barclays Underweight → Equal Weight
Nov-18-25 Initiated Wolfe Research Peer Perform
Sep-17-25 Initiated Barclays Underweight
Sep-04-25 Initiated Guggenheim Buy
Aug-19-25 Initiated Piper Sandler Neutral
Jul-01-25 Initiated UBS Buy
Jun-11-25 Initiated Leerink Partners Underperform
Mar-26-25 Upgrade Citigroup Neutral → Buy
Mar-21-25 Initiated Cantor Fitzgerald Overweight
Mar-12-25 Initiated Evercore ISI Outperform
Feb-28-25 Initiated Goldman Buy
Jan-08-25 Initiated Truist Buy
Dec-11-24 Initiated Wells Fargo Overweight
Dec-06-24 Initiated Jefferies Buy
Nov-04-24 Initiated JMP Securities Mkt Outperform
Sep-27-24 Downgrade Citigroup Buy → Neutral
Aug-12-24 Initiated H.C. Wainwright Buy
May-07-24 Initiated Citigroup Buy
Mar-26-24 Initiated Stifel Buy
Jun-28-18 Downgrade Janney Buy → Neutral
May-02-18 Initiated Janney Buy
Apr-12-18 Reiterated Needham Buy
Feb-13-18 Initiated BTIG Research Buy
Jan-04-18 Initiated SunTrust Buy
Dec-01-17 Resumed H.C. Wainwright Buy
Nov-16-16 Reiterated RBC Capital Mkts Outperform
Oct-05-16 Reiterated Needham Buy
Sep-16-16 Initiated H.C. Wainwright Buy
Mar-30-15 Initiated Needham Buy
Mar-30-15 Initiated Oppenheimer Outperform
View All

Summit Therapeutics Inc Stock (SMMT) Latest News

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Oct 22, 2026

Summit Expands Ivonescimab Development Into Biliary Tract Cancer - Zacks Investment Research

Oct 22, 2026
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Oct 21, 2026

Can Expanding Ivonescimab Development Unlock SMMT's Growth Potential? - Zacks Investment Research

Oct 21, 2026
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Oct 21, 2026

For distant-stage biliary cancer, estimated five-year survival is under 5%. Summit plans a drug-combination trial. - Stock Titan

Oct 21, 2026
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Oct 19, 2026

Summit Therapeutics Announces Opening of Global Phase II Study of Ivonescimab-Based Regimens in Advanced Clear Cell Renal Cell Carcinoma - Investing News Network

Oct 19, 2026
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Oct 19, 2026

A share-increase proposal at Summit Therapeutics (SMMT) would help enable conversion of $2B in preferred stock. - Stock Titan

Oct 19, 2026
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Oct 14, 2026

Accounting chief gets a stock grant at Summit Therapeutics (SMMT), vesting in 2029 if still employed. - Stock Titan

Oct 14, 2026
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Oct 13, 2026

Summit Therapeutics Inc Stock (SMMT) Moved Down by 8.61% on Oct 13: Key Drivers Unveiled - TradingKey

Oct 13, 2026
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Oct 05, 2026

AstraZeneca Completes $2 Billion Equity Investment in Summit Therapeutics - citybiz

Oct 05, 2026
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Oct 05, 2026

SMMT Inks Deal With AZN-Daiichi to Study Ivonescimab + Datroway Combos - Zacks Investment Research

Oct 05, 2026
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Oct 05, 2026

Summit Therapeutics (NasdaqGM:SMMT) Stock Forecast & Analyst Predictions - Simply Wall Street

Oct 05, 2026
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Oct 01, 2026

AstraZeneca (AZN) Puts $2 Billion Into Summit Therapeutics (SMMT) for a Cancer Tie-Up - Yahoo Finance

Oct 01, 2026
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Sep 30, 2026

Summit Therapeutics Stock Climbs Wednesday: What's Happening? - Benzinga

Sep 30, 2026
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Sep 30, 2026

AstraZeneca's $2 Billion Vote of Confidence Leaves Summit Therapeutics Trading Well Below Street Targets - 24/7 Wall St.

Sep 30, 2026
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Sep 30, 2026

Summit Therapeutics secures major AstraZeneca equity partnership - The Globe and Mail

Sep 30, 2026
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Sep 30, 2026

AstraZeneca’s $2 Billion Vote of Confidence Leaves Summit Therapeutics Trading Well Below Street Targets - Yahoo Finance

Sep 30, 2026
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Sep 29, 2026

Roundup: Hengrui Pharma and Novo Enter Exclusive License Agreement for HRS-1596, AstraZeneca Enters Collaboartion with Summit Therapeutics - Pharmaceutical Executive

Sep 29, 2026
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Sep 29, 2026

AstraZeneca Invests $2B in Summit for Cancer Drug Dev - Rediff MoneyWiz

Sep 29, 2026
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Sep 29, 2026

Summit Therapeutics Soars Nearly 20% After AstraZeneca Bets $2 Billion on Cancer Drug Ivonescimab - Benzinga

Sep 29, 2026
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Sep 29, 2026

Summit Therapeutics Shares Rise 22% After $2 Billion AstraZeneca Investment - Yahoo Finance

Sep 29, 2026
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Sep 29, 2026

Summit Therapeutics Raises $2.0 Billion in Convertible Preferred Private Placement With AstraZeneca - TradingView

Sep 29, 2026
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Sep 29, 2026

AstraZeneca invests $2bn in Summit Therapeutics to develop cancer drug - Business Weekly

Sep 29, 2026
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Sep 29, 2026

Summit snags $2B investment from AstraZeneca, clearing financial overhang - BioSpace

Sep 29, 2026
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Sep 28, 2026

AstraZeneca to invest $2 billion in Summit Therapeutics for cancer drug tie-up - Reuters

Sep 28, 2026
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Sep 29, 2026

AstraZeneca invests $2 billion in Summit Therapeutics in cancer drug deal - Proactive financial news

Sep 29, 2026
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Sep 28, 2026

Summit Therapeutics agrees to US$2B AstraZeneca equity investment - Mugglehead Investment Magazine

Sep 28, 2026
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Sep 28, 2026

AstraZeneca invests $2 billion in Summit Therapeutics By Investing.com - Investing.com

Sep 28, 2026
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Sep 28, 2026

Summit Therapeutics rises after AstraZeneca commits $2B investment - TradingView

Sep 28, 2026
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Sep 28, 2026

AstraZeneca announces strategic equity investment and clinical collaboration with Summit Therapeutics to advance leading ADC combination strategy in cancer - AstraZeneca

Sep 28, 2026
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Sep 28, 2026

AstraZeneca Makes $2 Billion Strategic Equity Investment in Summit Therapeutics - Business Wire

Sep 28, 2026
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Sep 28, 2026

AstraZeneca invests $2 billion in Summit Therapeutics in cancer drug deal - Yahoo Finance UK

Sep 28, 2026
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Sep 28, 2026

AstraZeneca invests $2 billion in Summit Therapeutics in cancer drug deal - Yahoo Finance

Sep 28, 2026
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Sep 13, 2026

Summit Therapeutics (SMMT) Shows Promising Trial Results but Faces Valuation Challenges - GuruFocus

Sep 13, 2026
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Sep 13, 2026

Summit’s ivonescimab cuts death risk by 27% versus Keytruda in lung cancer trial (SMMT:NASDAQ) - Seeking Alpha

Sep 13, 2026
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Sep 13, 2026

Summit Therapeutics (SMMT) Gains Attention as Phase III Trial Data Boosts Outlook Amid Valuation Challenges - GuruFocus

Sep 13, 2026
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Sep 10, 2026

Jefferies upgrades Summit Therapeutics stock rating on trial outlook By Investing.com - Investing.com South Africa

Sep 10, 2026
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Sep 09, 2026

Summit Therapeutics Shares Rise After Upgrade From Jefferies - marketscreener.com

Sep 09, 2026
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Sep 09, 2026

Summit Therapeutics shares gain after Jefferies upgrades stock to Buy - Yahoo Finance

Sep 09, 2026
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Sep 09, 2026

Summit Therapeutics stock surges on Jefferies upgrade to buy By Investing.com - Investing.com Canada

Sep 09, 2026
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Sep 09, 2026

Jefferies upgrades Summit Therapeutics stock rating on trial outlook By Investing.com - Investing.com Canada

Sep 09, 2026
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Sep 09, 2026

Jefferies upgrades Summit Therapeutics stock rating on trial outlook By Investing.com - Investing.com UK

Sep 09, 2026
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Sep 07, 2026

Summit Therapeutics Inc. (SMMT) Investor Outlook: Exploring A Potential 61.45% Upside - DirectorsTalk Interviews

Sep 07, 2026
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Sep 07, 2026

Summit Therapeutics (SMMT) Soars 28% on Ivonescimab Progress - Yahoo Finance

Sep 07, 2026
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Sep 04, 2026

Ivonescimab Demonstrates an Overall Survival Benefit in Advanced NSCLCSummit Therapeutics - Oncodaily

Sep 04, 2026
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Sep 04, 2026

Why Summit Therapeutics (SMMT) Is Up 19.5% After New Ivonescimab Phase III Survival DataAnd What's Next - simplywall.st

Sep 04, 2026
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Sep 03, 2026

Summit Therapeutics: The High Stakes Of Translating China Clinical Data To The U.S. (SMMT) - Seeking Alpha

Sep 03, 2026
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Sep 03, 2026

Why is Summit Therapeutics stock surging today? By Investing.com - Investing.com South Africa

Sep 03, 2026
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Sep 03, 2026

Summit's Ivonescimab Beats Merck's Keytruda on Survival in Chinese Lung Cancer Trial - finance.biggo.com

Sep 03, 2026
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Sep 03, 2026

Summit Therapeutics Says It Is Beating Merck With Its Cancer Drug - Barron's

Sep 03, 2026
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Sep 03, 2026

Why Is Summit Therapeutics Stock Soaring Today?Summit Therapeutics (NASDAQ:SMMT) - Benzinga

Sep 03, 2026
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Sep 03, 2026

Summit Therapeutics, HUTCHMED, Tesla And Other Big Stocks Moving Higher On Thursday - benzinga.com

Sep 03, 2026

Summit Therapeutics Inc Stock (SMMT) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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Summit Therapeutics Inc Stock (SMMT) Insider Trading

Insider Trading Relationship Date Transaction Cost #Shares Value ($) #Shares Total
DUGGAN ROBERT W
Co-Chief Executive Officer
Jun 12 '26
Buy
13.12
3,810,000
49,987,200
573,883,879
DUGGAN ROBERT W
Co-Chief Executive Officer
Jun 04 '26
Buy
14.60
100,000
1,460,000
25,824,474
Zanganeh Mahkam
Co-Chief Executive Officer
Jun 04 '26
Buy
14.60
100,000
1,460,000
25,824,474
Soni Manmeet Singh
COO and CFO
Jun 04 '26
Buy
14.45
50,000
722,250
3,123,603
Xia Yu
Director
Oct 21 '25
Buy
18.74
533,617
9,999,983
32,057,147
DUGGAN ROBERT W
Co-Chief Executive Officer
Oct 21 '25
Buy
18.74
26,680
499,983
76,680
Zanganeh Mahkam
Co-Chief Executive Officer
Oct 21 '25
Buy
18.74
26,680
499,983
76,680
$72.55
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$68.56
price up icon 0.65%
$55.95
price down icon 1.20%
$214.00
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$125.63
price up icon 0.88%
$434.24
price down icon 4.21%
Cap:     |  Volume (24h):