Summit Therapeutics Inc. (SMMT) Insider Buying
Every C-suite and executive open-market purchase of Summit Therapeutics Inc. stock we've tracked from SEC Form 4 filings — each scored on our six-factor model. Not financial advice.
| Ticker | Insider | Role | Value | Filed | Signal | Score |
|---|---|---|---|---|---|---|
| SMMT Summit Therapeutics Inc. | Zanganeh Mahkam | Co-Chief Executive Officer | $49,987,200 | Jun 12, 2026 | BUY | 60 |
| SMMT Summit Therapeutics Inc. | DUGGAN ROBERT W | Co-Chief Executive Officer | $49,987,200 | Jun 12, 2026 | WATCH | 49 |
What this page tracks
This is a live record of open-market stock purchases by directors and officers of Summit Therapeutics Inc., sourced directly from SEC EDGAR Form 4 filings. We only count open-market buys — not option exercises or grants — because a personal-money purchase is the cleanest insider conviction signal.
Each filing is scored with our six-factor methodology (fundamentals, financials, technicals, conviction, CEO history, and cluster activity). See how the resulting signals performed against the S&P 500 on the track record, or browse this week's insider buys and the full signal screener.