Robert W. Duggan, Co-Chief Executive Officer, 10% Owner at Summit Therapeutics Inc. (SMMT), bought 3,810,000 shares at $13.12 ($50.0M) on 2026-06-12, disclosed to the SEC on 2026-06-12.
CEO Robert W. Duggan executed the largest insider purchase in the company's history, buying $50M of stock at $13.12, signaling confidence despite recent volatility. This move comes as the stock has dropped 35% over the past year and halted a $500M equity offering following clinical trial results.
The stock is trading at $13.065, down 11.45% over the last five days and 30.43% over the past month, putting it 57.83% below its 52-week high of $30.98.
Nothing distinguishes this filing.
| Filing → |
| SMMT | BUY | 2025-10-23 | $1000K | — | Filing → |
| PLSE | BUY | 2025-09-12 | $5.4M | — | Filing → |
| SMMT | BUY | 2025-09-11 | $11.9M | — | Filing → |