Yu Xia is Director at Summit Therapeutics Inc. (SMMT). They have made 2 open-market trades across 1 company since 2023, most recently 2025-10-21.
CIK 0001963544
2 open-market purchases totalling $67.7M since 2023, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SMMT | 32,057,147 | $469.5M |
Shares reported on the most recent Form 4, priced at the 2025-10-23 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.