Chen Bihua (CIK 1599214) reported 28 SEC Form 4 insider transactions across 8 companies over the past 18 months (most recent 2026-08-10). Recent activity: Buy BLSM (1.6M shares), Buy BLSM (1.7M shares), Buy BLSM (312,500 shares), Sell BBOT (4.5M shares), Buy BBOT (2.7M shares). Source: SEC Form 4.
来源：SEC Form 4 申报文件 · 截至 2026-08-10