Yu Xia insider trades: Summit Therapeutics (SMMT) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Yu reports to the SEC
Open-market buys and sales
1 trade reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 21, 2025 | SMMT | ↑ Buy | 533,617 | $18.74 | $10.0M | Akeso, Inc. | Oct 23, 2025 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other SMMT insiders
Open-market trades in the last 12 months
About Yu Xia's insider trades
Yu Xia is a director at Summit Therapeutics (SMMT). Since Oct 21, 2025, Yu has reported 1 open-market purchase worth $10.0M and no sales on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SMMT insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.