LIVE FROM THE DATABASETRANSACTIONS 362,114COMPANIES 5,761LATEST TRADE Oct 16UPDATED Oct 16, 09:12 PM
SMMTCIK 0001599298

Summit Therapeutics Inc.

24 transactions by 10 insiders, from October 21, 2025 to October 8, 2026.

Transactions
2410 insiders
Bought · P
$104.1Mopen market
Sold · S
Nonenobody sold on the open market
Net
+$104.1Mnet buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Robert W. DugganCEO6—$51.9M—
Bhaskar AnandCAO3———
Mahkam ZanganehCEO3—$51.4M—
Manmeet Singh SoniCFO2—$722K—
Alessandra CesanoDir2———
Kenneth A. ClarkDir2———
Jeff HuberDir2———
Robert F. BoothDir2———
Mostafa RonaghiDir1———
Yu XiaDir1———

All transactions

24 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Bhaskar AnandCAOOct 8A100,000$0.00—
Mahkam ZanganehCEOJun 12P3,810,000$13.12$50.0M
Robert W. DugganCEOJun 12P3,810,000$13.12$50.0M
Mahkam ZanganehCEOJun 4P100,000$14.60$1.5M
Manmeet Singh SoniCFOJun 4P25,000$14.43$361K
Manmeet Singh SoniCFOJun 4P25,000$14.46$362K
Robert W. DugganCEOJun 4P100,000$14.60$1.5M
Bhaskar AnandCAODERIVJan 8A30,000——
Yu XiaDirDERIVJan 2A35,000——
Mahkam ZanganehCEODERIVJan 2A11,232$8.76$98K?
Mostafa RonaghiDirDERIVJan 2A35,000——
Jeff HuberDirDERIVJan 2A9,885$8.76$87K?
Jeff HuberDirDERIVJan 2A35,000——
Robert W. DugganCEODERIVJan 2A11,232$8.76$98K?
Kenneth A. ClarkDirDERIVJan 2A17,796$8.76$156K?
Kenneth A. ClarkDirDERIVJan 2A35,000——
Alessandra CesanoDirDERIVJan 2A3,219$8.76$28K?
Alessandra CesanoDirDERIVJan 2A35,000——
Robert F. BoothDirDERIVJan 2A7,180$8.76$63K?
Robert F. BoothDirDERIVJan 2A35,000——
Bhaskar AnandCAOOct 21A26,680$18.74$500K
Robert W. DugganCEOOct 21P26,680$18.74$500K
Robert W. DugganCEOOct 21A266,808$18.74$5.0M
Robert W. DugganCEOOct 21A13,980,789$18.74$262.0M