Insider Transactions Reported by 14 Insiders of Summit Therapeutics Inc.

Symbol
SMMT on Nasdaq
Location
Miami, FL

Insiders trading volume in the past year

Summit Therapeutics Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Robert W. Duggan Co-Chief Executive Officer, Director, 10%+ Owner $11,488,215,999 +$6,484,739 +0.06% 02 Jan 2026
Mahkam Zanganeh Co-Chief Executive Officer, Director, 10%+ Owner $11,378,164,341 +$6,484,739 +0.06% 02 Jan 2026
Yu Xia Director $600,800,855 +$9,999,983 +1.7% 02 Jan 2026
Manmeet Singh Soni COO and CFO, Director $59,051,320 21 Oct 2025
Bhaskar Anand Chief Accounting Officer $3,682,233 08 Jan 2026
Ankur Dhingra Chief Financial Officer $1,331,093 26 Mar 2024
Urte Gayko Director $528,000 25 Apr 2022
Mostafa Ronaghi Director $321,300 02 Jan 2026
Kenneth A. Clark Director $155,892 02 Jan 2026
Ujwala Mahatme Director $115,599 02 Jan 2024
Jeff Huber Director $86,592 02 Jan 2026
Robert F. Booth Director $62,896 02 Jan 2026
Alessandra Cesano Director $28,198 02 Jan 2026
Jeffrey R. Maranian VP Corporate Controller $19,800 15 Dec 2021

Recent Insider Transactions by Companies or Individuals for Summit Therapeutics Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Bhaskar Anand SMMT Stock Option (right to buy) Award 30,000 30,000 08 Jan 2026 Direct
Mahkam Zanganeh SMMT Stock Option (right to buy) Award 11,232 11,232 02 Jan 2026 By Spouse
Robert W. Duggan SMMT Stock Option (right to buy) Award 11,232 11,232 02 Jan 2026 Direct
Robert F. Booth SMMT Stock Option (right to buy) Award 42,180 35,000 02 Jan 2026 Direct
Yu Xia SMMT Stock Option (right to buy) Award 35,000 35,000 02 Jan 2026 Direct
Jeff Huber SMMT Stock Option (right to buy) Award 44,885 35,000 02 Jan 2026 Direct
Mostafa Ronaghi SMMT Stock Option (right to buy) Award 35,000 35,000 02 Jan 2026 Direct
Kenneth A. Clark SMMT Stock Option (right to buy) Award 52,796 35,000 02 Jan 2026 Direct
Alessandra Cesano SMMT Stock Option (right to buy) Award 38,219 35,000 02 Jan 2026 Direct
Yu Xia SMMT Common Stock Purchase 1.69% $9,999,983 $18.74 533,617 32,057,147 21 Oct 2025 Akeso, Inc.
Bhaskar Anand SMMT Common Stock Award 20% 26,680 159,751 21 Oct 2025 Direct
Manmeet Singh Soni SMMT Common Stock Award 1.77% 53,361 3,073,603 21 Oct 2025 Direct
Robert W. Duggan SMMT Common Stock Purchase 53.4% $499,983 $18.74 26,680 76,680 21 Oct 2025 Immediate family member of Spouse
Robert W. Duggan SMMT Common Stock Award 1.05% 266,808 25,724,474 21 Oct 2025 By the Mahkam Zanganeh Revocable Trust, with the Spouse of Reporting Person as Trustee
Robert W. Duggan SMMT Common Stock Award 2.51% 13,980,789 570,073,879 21 Oct 2025 Direct
Mahkam Zanganeh SMMT Common Stock Award 2.51% 13,980,789 570,073,879 21 Oct 2025 By Spouse
Mahkam Zanganeh SMMT Common Stock Purchase 53.4% $499,983 $18.74 26,680 76,680 21 Oct 2025 Immediate family member
Mahkam Zanganeh SMMT Common Stock Award 1.05% 266,808 25,724,474 21 Oct 2025 By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee
Bhaskar Anand SMMT Stock Option (right to buy) Award 50,000 50,000 18 Sep 2025 Direct
Mahkam Zanganeh SMMT Common Stock Purchase $90,350 $18.07 5,000 556,093,090 11 Sep 2025 By Spouse
Robert W. Duggan SMMT Common Stock Purchase $90,350 $18.07 5,000 556,093,090 11 Sep 2025 Direct
Mahkam Zanganeh SMMT Common Stock Purchase 0.06% $5,894,406 $17.68 333,394 556,088,090 10 Sep 2025 By Spouse
Robert W. Duggan SMMT Common Stock Purchase 0.06% $5,894,406 $17.68 333,394 556,088,090 10 Sep 2025 Direct
Mahkam Zanganeh SMMT Common Stock Options Exercise 0.01% 74,545 555,754,696 30 May 2025 By Spouse
Mahkam Zanganeh SMMT Stock Option (right to buy) Options Exercise -100% -74,545 0 30 May 2025 By Spouse
Robert W. Duggan SMMT Common Stock Options Exercise 0.01% 74,545 555,754,696 30 May 2025 Direct
Robert W. Duggan SMMT Stock Option (right to buy) Options Exercise -100% -74,545 0 30 May 2025 Direct
Bhaskar Anand SMMT Stock Option (right to buy) Award 675,000 600,000 29 Apr 2025 Direct
Manmeet Singh Soni SMMT Stock Option (right to buy) Award 11,200,000 11,200,000 29 Apr 2025 Direct
Robert W. Duggan SMMT Stock Option (right to buy) Award 11,030,558 9,590,558 29 Apr 2025 By Spouse
Mahkam Zanganeh SMMT Stock Option (right to buy) Award 11,030,558 9,590,558 29 Apr 2025 Direct
Mahkam Zanganeh SMMT Common Stock Exercise of in-the-money or at-the-money derivative security 0.72% 3,985,055 555,680,151 08 Apr 2025 By Spouse
Mahkam Zanganeh SMMT Warrant (right to buy) Exercise of in-the-money or at-the-money derivative security 3,985,055 0 08 Apr 2025 By Spouse
Robert W. Duggan SMMT Common Stock Exercise of in-the-money or at-the-money derivative security 0.72% 3,985,055 555,680,151 08 Apr 2025 Direct
Robert W. Duggan SMMT Warrant (right to buy) Exercise of in-the-money or at-the-money derivative security 3,985,055 0 08 Apr 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.