Xia Yu, a director at Summit Therapeutics Inc. ($SMMT), made one open market purchase of shares in the last 365 days, totaling almost $10 million. The most recent buy occurred on October 21, 2025. This ranks Xia Yu 111th among nearly 5,000 individual insiders for highest purchase amounts, well above the average of $1.5 million across 3.29 transactions. Xia Yu reported no open market sales during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 2, 2026 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | A | Stock Option (right to buy) | 35000 | $0.00 | 35,000.0000 | 744,442,538 | 9999.99% | 0.00% |
| Oct. 21, 2025 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | P | Common Stock | 533617 | $18.74 | 32,057,147.0000 | 744,442,538 | 1.69% | 0.07% |
| Jan. 2, 2025 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | A | Stock Option (right to buy) | 35000 | $0.00 | 35,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 2, 2025 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | A | Stock Option (right to buy) | 5438 | $9.18 | 5,438.0000 | 0 | 9999.99% | 0.00% |
| Jan. 17, 2023 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | P | Common Stock | 10000000 | $2.51 | 10,000,000.0000 | 0 | 9999.99% | 0.00% |
| March 7, 2023 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | P | Common Stock | 21523530 | $1.05 | 21,523,530.0000 | 0 | 9999.99% | 0.00% |
| Jan. 2, 2024 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | A | Stock Option (right to buy) | 35000 | $0.00 | 35,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 2, 2024 | Summit Therapeutics Inc. | $SMMT | Xia Yu | Director | A | Stock Option (right to buy) | 200000 | $0.00 | 235,000.0000 | 0 | 571.43% | 0.00% |