NASDAQ:SMMT | Insider Transactions | Summit Therapeutics Inc.

SMMT Insider Transactions

47 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–47; provenance stays internal.

SMMT insiders transaction timeline

PurchaseSale
2020-11-06: 1 purchase — DUGGAN ROBERT W2020-11-23: 1 sale — Powell David Jonathan2020-11-24: 1 sale — Powell David Jonathan2020-11-25: 1 sale — Powell David Jonathan2020-11-27: 1 sale — Powell David Jonathan2020-11-30: 1 sale — Powell David Jonathan2021-05-12: 2 purchases — DUGGAN ROBERT W, Zanganeh Maky2022-08-16: 8 purchases — Dhingra Ankur, DUGGAN ROBERT W, Zanganeh Maky2023-01-17: 1 purchase — Xia Yu2023-03-06: 1 purchase — DUGGAN ROBERT W2023-03-07: 2 purchases — Xia Yu, Dhingra Ankur2023-03-08: 5 purchases — Zanganeh Mahkam2023-10-13: 1 purchase — Soni Manmeet Singh2023-12-12: 1 purchase — Zanganeh Mahkam2023-12-13: 2 purchases — Dhingra Ankur2024-03-26: 2 purchases — Zanganeh Mahkam, Dhingra Ankur2024-03-27: 3 purchases — Zanganeh Mahkam2025-09-10: 2 purchases — Zanganeh Mahkam, DUGGAN ROBERT W2025-09-11: 2 purchases — Zanganeh Mahkam, DUGGAN ROBERT W2025-10-21: 3 purchases — Xia Yu, Zanganeh Mahkam, DUGGAN ROBERT W2026-06-04: 4 purchases — Soni Manmeet Singh, Zanganeh Mahkam, DUGGAN ROBERT W2026-06-12: 2 purchases — Zanganeh Mahkam, DUGGAN ROBERT W2020-11-062026-06-12
Insider profileRoleDateTransactionSharesPrice
Zanganeh MahkamCo-Chief Executive Officer2026-06-12Purchase3,810,000.0$13.12
DUGGAN ROBERT WCo-Chief Executive Officer2026-06-12Purchase3,810,000.0$13.12
Soni Manmeet SinghCOO and CFO2026-06-04Purchase25,000.0$14.43
Soni Manmeet SinghCOO and CFO2026-06-04Purchase25,000.0$14.46
Zanganeh MahkamCo-Chief Executive Officer2026-06-04Purchase100,000.0$14.6
DUGGAN ROBERT WCo-Chief Executive Officer2026-06-04Purchase100,000.0$14.6
Xia YuDirector2025-10-21Purchase533,617.0$18.74
Zanganeh MahkamCo-Chief Executive Officer2025-10-21Purchase26,680.0$18.74
DUGGAN ROBERT WCo-Chief Executive Officer2025-10-21Purchase26,680.0$18.74
Zanganeh MahkamCo-Chief Executive Officer2025-09-11Purchase5,000.0$18.07
DUGGAN ROBERT WCo-Chief Executive Officer2025-09-11Purchase5,000.0$18.07
Zanganeh MahkamCo-Chief Executive Officer2025-09-10Purchase333,394.0$17.68
DUGGAN ROBERT WCo-Chief Executive Officer2025-09-10Purchase333,394.0$17.68
Zanganeh MahkamChief Executive Officer2024-03-27Purchase20,000.0$3.71
Zanganeh MahkamChief Executive Officer2024-03-27Purchase34,321.0$3.72
Zanganeh MahkamChief Executive Officer2024-03-27Purchase26,000.0$3.72
Zanganeh MahkamChief Executive Officer2024-03-26Purchase30,000.0$3.75
Dhingra AnkurChief Financial Officer2024-03-26Purchase100,000.0$3.75
Dhingra AnkurChief Financial Officer2023-12-13Purchase19,700.0$2.17
Dhingra AnkurChief Financial Officer2023-12-13Purchase700.0$2.15
Zanganeh MahkamChief Executive Officer2023-12-12Purchase5,000.0$2.07
Soni Manmeet SinghChief Operating Officer2023-10-13Purchase2,976,190.0$1.68
Zanganeh MahkamCo-CEO & President2023-03-08Purchase6,748,629.0$1.05
Zanganeh MahkamCo-CEO & President2023-03-08Purchase16,778,415.0$1.05
Zanganeh MahkamCo-Chief Executive Officer2023-03-08Purchase6,748,629.0$1.05
Zanganeh MahkamCo-Chief Executive Officer2023-03-08Purchase804,672.0$1.05
Zanganeh MahkamCo-Chief Executive Officer2023-03-08Purchase15,973,743.0$1.05
Xia YuDirector2023-03-07Purchase21,523,530.0$1.05
Dhingra AnkurChief Financial Officer2023-03-07Purchase196,362.0$1.05
DUGGAN ROBERT WChief Executive Officer2023-03-06Purchase376,489,880.0$1.05
Xia YuDirector2023-01-17Purchase10,000,000.0$2.51
Dhingra AnkurChief Financial Officer2022-08-16Purchase24,658.0$0.97
Dhingra AnkurChief Financial Officer2022-08-16Purchase13,027.0$0.97
DUGGAN ROBERT WChief Executive Officer2022-08-16Purchase94,849,203.0$0.97
Zanganeh MakyCo-CEO & President2022-08-16Purchase1,030,925.0$0.97
Zanganeh MakyCo-CEO & President2022-08-16Purchase4,593,777.0$0.97
Zanganeh MakyCo-CEO & President2022-08-16Purchase184,430.0$0.97
Dhingra AnkurChief Financial Officer2022-08-16Purchase24,658.0$0.97
Dhingra AnkurChief Financial Officer2022-08-16Purchase11,557.0$0.97
DUGGAN ROBERT WChief Executive Officer2021-05-12Purchase11,365,921.0$5.24
Zanganeh MakyChief Operating Officer2021-05-12Purchase389,077.0$5.24
Powell David JonathanChief Scientific Officer2020-11-30Sale13,713.0$4.44
Powell David JonathanChief Scientific Officer2020-11-27Sale29,569.0$4.39
Powell David JonathanChief Scientific Officer2020-11-25Sale12,070.0$4.32
Powell David JonathanChief Scientific Officer2020-11-24Sale11,374.0$4.21
Powell David JonathanChief Scientific Officer2020-11-23Sale6,987.0$4.4
DUGGAN ROBERT WChief Executive Officer2020-11-06Purchase14,071,856.0$3.34