Summit Therapeutics (SMMT) insider trading in the last 6 months

Form 4 filings, newest first

Quality Score today -3

3 insiders bought $104M. No sales.

BuyMahkam Zanganeh$50MCo-Chief Executive Officerat $13.12 on Jun 12, filed Jun 12

BuyMahkam ZanganehCo-Chief Executive Officer$50Mat $13.12 on Jun 12, filed Jun 12

BuyRobert W. Duggan$50MCo-Chief Executive Officerat $13.12 on Jun 12, filed Jun 12

BuyRobert W. DugganCo-Chief Executive Officer$50Mat $13.12 on Jun 12, filed Jun 12

BuyRobert W. Duggan$1.5MCo-Chief Executive Officerat $14.60 on Jun 4, filed Jun 4

BuyRobert W. DugganCo-Chief Executive Officer$1.5Mat $14.60 on Jun 4, filed Jun 4

From SEC Form 4s, the newest filed Jun 12, 2026 · Insiders have 2 business days to file a trade

3 more filings on SMMT in the last 6 months, for Pro members. See them free →

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Who files at Summit Therapeutics

Mahkam ZanganehCo-Chief Executive Officer · 2 buys
Manmeet Singh SoniCOO and CFO · 2 buys
Robert W. DugganCo-Chief Executive Officer · 2 buys

Insider trades by person

Cluster buys at SMMT

3 insiders bought SMMT in the last 6 months: Mahkam Zanganeh, Robert W. Duggan, and Manmeet Singh Soni.

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Questions about SMMT's insider trades

As of Nov 2, 2026: Summit Therapeutics (SMMT) has 6 insider filings on record in the last 6 months, the newest filed Jun 12, 2026. Its Quality Score is -3 (Poor). Scores as of 9:30 PM ET, 15 minutes behind.

Are SMMT insiders buying or selling?

3 insiders bought $104M across 6 filings in the last 6 months. No open-⁠market sales on record. The newest filing: Mahkam Zanganeh, Co-⁠Chief Executive Officer, bought $50M on Jun 12, 2026. 3 insiders bought SMMT in the last 6 months: Mahkam Zanganeh, Robert W. Duggan, and Manmeet Singh Soni.

Who are SMMT's biggest insider sellers?

No SMMT insider sold shares on the open market in the last 6 months, as filed on Form 4.

When did an SMMT insider last buy?

Mahkam Zanganeh, Co-⁠Chief Executive Officer, bought SMMT shares ($50M) on Jun 12, 2026, the newest insider buy on record.

Summit Therapeutics's page has its Quality Score, its chart, and its earnings. More in Healthcare and Biotech.