Huang Lan (CIK 1731317) reported 1 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-15). Recent activity: Sell BYSI (260,582 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-15 | BeyondSpring Inc. (BYSI) | Chief Executive Officer | Sell | 260,582 | $0 |
Source: SEC Form 4 filings · as of 2026-05-15