| Name | Ticker | Relationship | Date | Transaction | AVG Cost Per Share | Shares | Total Value | Securities Owned After Transaction(s) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 17 '25 | Sell | $1.76 | 45,513 | $80,102.88 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 16 '25 | Sell | $1.72 | 85,798 | $147,572.56 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 15 '25 | Sell | $1.65 | 17,960 | $29,634.00 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 14 '25 | Sell | $1.65 | 28,495 | $47,016.75 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 13 '25 | Sell | $1.70 | 107,361 | $182,513.70 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 10 '25 | Sell | $1.77 | 2,390 | $4,230.30 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 9 '25 | Sell | $1.81 | 3,979 | $7,201.99 | 1,518,893 | |
| Decheng Capital China Life Sciences USD Fund III, L.P. | BYSI | 10% Owner | Oct 8 '25 | Sell | $1.77 | 7,507 | $13,287.39 | 1,518,893 |