InsiderTrades.com logo

SMMT Insider Trading

Insider Ownership Percentage: 81.80%
Insider Buying (Last 12 Months): $103,616,900.00
Insider Selling (Last 12 Months): $0.00

Summit Therapeutics Insider Trading History Chart

This chart shows the insider buying and selling history at Summit Therapeutics by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Summit Therapeutics Share Price & Price History

Current Price: $15.65
Price Change: ▼ Price Decrease of -0.988 (-5.94%)
As of 11/12/2026 10:28 AM ET

This chart shows the closing price history over time for SMMT up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Summit Therapeutics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/12/2026Mahkam ZanganehCEOBuy3,810,000$13.12$49,987,200.00573,883,879View SEC Filing Icon  
6/12/2026Robert W. DugganCEOBuy3,810,000$13.12$49,987,200.00573,883,879View SEC Filing Icon  
6/4/2026Mahkam ZanganehCEOBuy100,000$14.60$1,460,000.0025,824,474View SEC Filing Icon  
6/4/2026Manmeet Singh SoniCFOBuy50,000$14.45$722,500.003,123,603View SEC Filing Icon  
6/4/2026Robert W. DugganCEOBuy100,000$14.60$1,460,000.0025,824,474View SEC Filing Icon  
10/21/2025Mahkam ZanganehCEOBuy26,680$18.74$499,983.2076,680View SEC Filing Icon  
10/21/2025Robert W. DugganCEOBuy26,680$18.74$499,983.2076,680View SEC Filing Icon  
10/21/2025Yu XiaDirectorBuy533,617$18.74$9,999,982.5832,057,147View SEC Filing Icon  
9/11/2025Mahkam ZanganehCEOBuy5,000$18.07$90,350.00556,093,090View SEC Filing Icon  
9/11/2025Robert W. DugganCEOBuy5,000$18.07$90,350.00556,093,090View SEC Filing Icon  
9/10/2025Mahkam ZanganehCEOBuy333,394$17.68$5,894,405.92556,088,090View SEC Filing Icon  
9/10/2025Robert W. DugganCEOBuy333,394$17.68$5,894,405.92556,088,090View SEC Filing Icon  
3/26/2024Ankur DhingraCFOBuy100,000$3.75$375,000.00354,958View SEC Filing Icon  
3/26/2024Mahkam ZanganehCEOBuy30,000$3.75$112,500.0030,000View SEC Filing Icon  
12/13/2023Ankur DhingraCFOBuy20,400$2.17$44,268.00254,958View SEC Filing Icon  
12/12/2023Mahkam ZanganehCEOBuy5,000$2.07$10,350.00494,814View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Summit Therapeutics (NASDAQ:SMMT)

4.61% of Summit Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at SMMT by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Summit Therapeutics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/11/2026Ieq Capital LLC69,730$1.18M0.0%N/A0.009%Search for SEC Filing on Google Icon
11/10/2026Z3 Capital Partners LLC36,550$0.62M0.1%N/A0.005%Search for SEC Filing on Google Icon
11/10/2026Voya Investment Management LLC185,782$3.14M0.0%-6.8%0.023%Search for SEC Filing on Google Icon
11/10/2026Global Retirement Partners LLC2,058$35K0.0%+200.0%0.000%Search for SEC Filing on Google Icon
11/10/2026Rothschild Investment LLC3,621$61K0.0%+25,764.3%0.000%Search for SEC Filing on Google Icon
11/10/2026NINE MASTS CAPITAL Ltd28,037$0.47M0.1%N/A0.004%Search for SEC Filing on Google Icon
11/9/2026Harbour Investments Inc.3,409$58K0.0%+2,542.6%0.000%Search for SEC Filing on Google Icon
11/6/2026Aberdeen Group plc154,700$2.62M0.0%-90.9%0.019%Search for SEC Filing on Google Icon
11/6/2026Russell Investments Group Ltd.42,714$0.72M0.0%+2.4%0.005%Search for SEC Filing on Google Icon
11/6/2026Eurizon Capital SGR S.p.A.2,085$34K0.0%N/A0.000%Search for SEC Filing on Google Icon
11/6/2026Fifth Third Bancorp4,203$71K0.0%-17.0%0.001%Search for SEC Filing on Google Icon
11/5/2026Machina Capital S.A.S.23,790$0.40M0.1%-56.6%0.003%Search for SEC Filing on Google Icon
11/4/2026New York Life Investment Management LLC19,068$0.32M0.0%+29.8%0.002%Search for SEC Filing on Google Icon
11/4/2026Fulcrum Asset Management LLP55,315$0.91M0.0%N/A0.007%Search for SEC Filing on Google Icon
11/4/2026Hohimer Wealth Management LLC441,650$7.47M0.6%+30.2%0.055%Search for SEC Filing on Google Icon
11/4/2026Brighton Jones LLC12,240$0.21M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/4/2026Candriam S.C.A.1,662,969$28.22M0.1%+212.3%0.208%Search for SEC Filing on Google Icon
11/3/2026Pictet Asset Management Holding SA1,121,137$18.77M0.0%-1.2%0.140%Search for SEC Filing on Google Icon
11/3/2026Parallel Advisors LLC3,011$51K0.0%+2,234.1%0.000%Search for SEC Filing on Google Icon
10/31/2026Chicago Partners Investment Group LLC13,852$0.21M0.0%N/A0.002%Search for SEC Filing on Google Icon
10/29/2026Mirae Asset Global Investments Co. Ltd.42,076$0.71M0.0%N/A0.005%Search for SEC Filing on Google Icon
10/29/2026Profund Advisors LLC53,459$0.90M0.0%-46.8%0.007%Search for SEC Filing on Google Icon
10/29/2026ProShare Advisors LLC27,660$0.47M0.0%+8.7%0.003%Search for SEC Filing on Google Icon
10/29/2026State of Wyoming21,471$0.36M0.0%-40.3%0.003%Search for SEC Filing on Google Icon
10/28/2026China Universal Asset Management Co. Ltd.147,158$2.41M0.1%+10.2%0.000%Search for SEC Filing on Google Icon
10/28/2026Simplify Asset Management Inc.510,106$8.63M0.1%N/A0.000%Search for SEC Filing on Google Icon
10/26/2026Oppenheimer & Co. Inc.15,220$0.26M0.0%N/A0.002%Search for SEC Filing on Google Icon
10/24/2026Kingswood Wealth Advisors LLC28,479$0.48M0.0%N/A0.004%Search for SEC Filing on Google Icon
10/23/2026Citizens Financial Group Inc. RI11,111$0.19M0.0%N/A0.001%Search for SEC Filing on Google Icon
10/23/2026Evergreen Capital Management LLC13,514$0.23M0.0%N/A0.002%Search for SEC Filing on Google Icon
10/23/2026Inspire Investing LLC40,228$0.68M0.0%+9.9%0.005%Search for SEC Filing on Google Icon
10/22/2026Wealth Management Partners LLC132,458$2.24M0.5%+48.4%0.017%Search for SEC Filing on Google Icon
10/17/2026IFP Advisors Inc1,508$26K0.0%+792.3%0.000%Search for SEC Filing on Google Icon
10/9/2026GAMMA Investing LLC2,697$46K0.0%+61.7%0.000%Search for SEC Filing on Google Icon
10/8/2026Farther Finance Advisors LLC29,308$0.50M0.0%+15.8%0.004%Search for SEC Filing on Google Icon
10/8/2026Toth Financial Advisory Corp1,800$30K0.0%N/A0.000%Search for SEC Filing on Google Icon
10/2/2026CX Institutional2,038$34K0.0%+244.8%0.000%Search for SEC Filing on Google Icon
9/9/2026Tidal Investments LLC121,097$1.76M0.0%+0.7%0.015%Search for SEC Filing on Google Icon
9/9/2026Engineers Gate Manager LP67,871$0.99M0.0%N/A0.009%Search for SEC Filing on Google Icon
9/8/2026Nykredit A S7,634$0.11M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/21/2026AXQ Capital LP93,624$1.36M0.1%+98.1%0.012%Search for SEC Filing on Google Icon
8/21/2026Nykredit A S7,634$0.11M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026Two Sigma Securities LLC12,491$0.18M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC90,338$1.32M0.0%+13.4%0.011%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC120,560$1.78M0.0%N/A0.015%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP441,934$6.44M0.0%+21.8%0.055%Search for SEC Filing on Google Icon
8/18/2026Beacon Pointe Advisors LLC98,114$1.43M0.0%N/A0.012%Search for SEC Filing on Google Icon
8/18/2026Public Employees Retirement System of Ohio38,501$0.56M0.0%N/A0.005%Search for SEC Filing on Google Icon
8/17/2026Seven Fleet Capital Management LP73,300$1.09M0.2%N/A0.009%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE864,983$12.60M0.0%N/A0.108%Search for SEC Filing on Google Icon
8/15/2026Elmind Capital LP493,820$7.19M0.0%N/A0.062%Search for SEC Filing on Google Icon
8/14/2026ADAR1 Capital Management LLC191,869$2.80M0.1%N/A0.024%Search for SEC Filing on Google Icon
8/14/2026Hsbc Holdings PLC120,560$1.78M0.0%N/A0.015%Search for SEC Filing on Google Icon
8/14/2026Osterweis Capital Management Inc.5,000$73K0.0%N/A0.001%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc18,247$0.27M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company298,000$4.34M0.0%N/A0.037%Search for SEC Filing on Google Icon
8/13/2026Polymer Capital Management HK LTD224,853$3.28M0.2%N/A0.028%Search for SEC Filing on Google Icon
8/11/2026E Fund Management Co. Ltd.30,468$0.44M0.0%N/A0.004%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.9,529,041$138.84M0.0%N/A1.194%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG239,347$3.49M0.0%N/A0.030%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp431,299$6.28M0.0%N/A0.054%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming35,973$0.52M0.1%N/A0.005%Search for SEC Filing on Google Icon
8/6/2026GSA Capital Partners LLP11,423$0.17M0.0%N/A0.001%Search for SEC Filing on Google Icon
7/10/2026Tema ETFs LLC121,097$1.76M0.1%+1.3%0.016%Search for SEC Filing on Google Icon
7/10/2026Handelsbanken Fonder AB55,500$0.81M0.0%+24.4%0.007%Search for SEC Filing on Google Icon
6/3/2026Parallel Advisors LLC2,139$41K0.0%+4,178.0%0.000%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE598,692$11.35M0.0%+25.4%0.077%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System6,391$0.12M0.0%-12.1%0.001%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada7,422$0.14M0.0%+132.2%0.001%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company592,810$11.24M0.0%+34.4%0.076%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP73,835$1.40M0.0%+415.5%0.010%Search for SEC Filing on Google Icon
5/15/2026Entropy Technologies LP21,783$0.41M0.0%-13.4%0.003%Search for SEC Filing on Google Icon
5/14/2026Public Employees Retirement System of Ohio33,999$0.65M0.0%-3.3%0.004%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.19,681$0.37M0.0%+95.6%0.003%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers29,738$0.56M0.0%N/A0.004%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP88,496$1.67M0.0%-76.5%0.011%Search for SEC Filing on Google Icon
5/7/2026Parallel Advisors LLC2,139$41K0.0%+4,178.0%0.000%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp404,679$7.67M0.0%+14.4%0.052%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund111,894$2.12M0.0%+12.6%0.014%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp3,732$71K0.0%+24.4%0.000%Search for SEC Filing on Google Icon
5/1/2026Ball & Co Wealth Management Inc.1,500$28K0.0%N/A0.000%Search for SEC Filing on Google Icon
4/30/2026Griffin Asset Management Inc.191,872$3.64M0.4%-1.9%0.025%Search for SEC Filing on Google Icon
4/30/2026Capstone Capital Management Ltd23,146$0.44M0.4%-17.9%0.003%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd119,655$2.27M0.0%N/A0.015%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA1,323,179$23.96M0.0%-4.4%0.171%Search for SEC Filing on Google Icon
4/20/2026Banque Cantonale Vaudoise23,916$0.45M0.0%N/A0.003%Search for SEC Filing on Google Icon
4/17/2026Wealth Management Partners LLC63,784$1.21M0.3%+7.3%0.008%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC53,523$1.02M0.0%+243.3%0.007%Search for SEC Filing on Google Icon
3/6/2026Hsbc Holdings PLC98,766$1.72M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/19/2026T. Rowe Price Investment Management Inc.1,873$33K0.0%+2,654.4%0.000%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.461,301$8.07M0.0%+8.3%0.060%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC35,880$0.63M0.0%-2.1%0.005%Search for SEC Filing on Google Icon
2/18/2026Beacon Pointe Advisors LLC39,611$0.69M0.0%+10.9%0.005%Search for SEC Filing on Google Icon
2/18/2026Virtus Investment Advisers LLC15,141$0.27M0.1%+168.3%0.002%Search for SEC Filing on Google Icon
2/18/2026Tudor Investment Corp ET AL423,084$7.40M0.0%+21.8%0.055%Search for SEC Filing on Google Icon
2/18/2026Readystate Asset Management LP306,184$5.36M0.2%N/A0.040%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.50,298$0.88M0.0%-74.2%0.007%Search for SEC Filing on Google Icon
2/18/2026Baker BROS. Advisors LP36,391,063$636.48M3.7%+7.9%4.719%Search for SEC Filing on Google Icon
2/17/2026Guggenheim Capital LLC49,798$0.87M0.0%+21.5%0.006%Search for SEC Filing on Google Icon
2/17/2026ADAR1 Capital Management LLC91,869$1.61M0.1%-10.8%0.012%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Summit Therapeutics logo
Summit Therapeutics Inc., a biopharmaceutical company, focuses on discovery, development, and commercialization of patient, physician, caregiver, and societal friendly medicinal therapies in the United States, and the United Kingdom. The company's lead development candidate is Ivonescimab, a bispecific antibody for immunotherapy through blockade of PD-1 with the anti-angiogenesis; and anti-infectives portfolio includes SMT-738, a novel class of precision antibiotics for the treatment of multidrug resistant infections, which primarily includes carbapenem-resistant Enterobacteriaceae infections. It has a collaboration and license agreement with Akeso, Inc. and its affiliates to develop and commercialize ivonescimab, as well as strategic collaboration with The University of Texas MD Anderson Cancer Center for the purpose of accelerating the development of ivonescimab. The company was founded in 2003 and is headquartered in Miami, Florida.
Read More on Summit Therapeutics

Today's Range

Now: $15.65
Low: $15.68
High: $16.44

50 Day Range

MA: $16.46
Low: $14.19
High: $18.42

52 Week Range

Now: $15.65
Low: $12.07
High: $29.23

Volume

615,569 shs

Average Volume

4,627,196 shs

Market Capitalization

$12.52 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Summit Therapeutics?

Summit Therapeutics' top insider investors include:
  1. Mahkam Zanganeh (CEO)
  2. Robert W Duggan (CEO)
  3. Yu Xia (Director)
  4. Manmeet Singh Soni (CFO)
  5. Manmeet Singh Soni (COO)
  6. Ankur Dhingra (CFO)
  7. David Jonathan Powell (Insider)
  8. Maky Zanganeh (COO)
Learn More about top insider investors at Summit Therapeutics.

Who are the major institutional investors of Summit Therapeutics?

Summit Therapeutics' top institutional shareholders include:
  1. Candriam S.C.A. — 0.21%
  2. Pictet Asset Management Holding SA — 0.14%
  3. Simplify Asset Management Inc. — 0.00%
  4. Hohimer Wealth Management LLC — 0.06%
  5. Voya Investment Management LLC — 0.02%
  6. Aberdeen Group plc — 0.02%
Learn More about top institutional investors of Summit Therapeutics stock.

Which major investors are selling Summit Therapeutics stock?

During the previous quarter, SMMT stock was sold by these institutional investors:
  1. Aberdeen Group plc
  2. Profund Advisors LLC
  3. Machina Capital S.A.S.
  4. State of Wyoming
  5. Voya Investment Management LLC
  6. Pictet Asset Management Holding SA
  7. Fifth Third Bancorp

Which major investors are buying Summit Therapeutics stock?

In the previous quarter, SMMT stock was purchased by institutional investors including:
  1. Candriam S.C.A.
  2. Simplify Asset Management Inc.
  3. Hohimer Wealth Management LLC
  4. Ieq Capital LLC
  5. Fulcrum Asset Management LLP
  6. Wealth Management Partners LLC
  7. Mirae Asset Global Investments Co. Ltd.
  8. Z3 Capital Partners LLC
Within the last year, these company insiders have bought Summit Therapeutics stock:
  1. Mahkam Zanganeh (CEO)
  2. Robert W Duggan (CEO)
  3. Yu Xia (Director)
  4. Manmeet Singh Soni (CFO)
Learn More investors buying Summit Therapeutics stock.

Summit Therapeutics Active Insiders

Robert W Duggan
Robert W Duggan (Age 82)
CEO
2 recent trades
Mahkam Zanganeh
Mahkam Zanganeh (Age 56)
CEO
2 recent trades
Maky Zanganeh
Maky Zanganeh
COO
2 recent trades
Ankur Dhingra
Ankur Dhingra (Age 50)
CFO
Yu Xia
Yu Xia
Director