Mahkam Zanganeh, 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 Mahkam Zanganeh purchased $50 million of Summit Therapeutics stock on June 12, 2026, marking the largest insider purchase in the company's history. This significant capital commitment by the CEO suggests confidence in the company's pipeline despite recent market volatility.
Shares are trading near the 52-week low of $12.56, having fallen 11.45% over the past five days and 30.43% over the last month.
Nothing distinguishes this filing.
| Filing → |
| SMMT | BUY | 2025-09-11 | $11.9M | — | Filing → |
| SMMT | BUY | 2024-03-27 | $539K | — | Filing → |
| SMMT | BUY | 2023-12-13 | $10K | — | Filing → |