Bickerton David R (CIK 2059400) reported 20 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-11). Recent activity: Buy CBKM (50 shares), Buy CBKM (150 shares), Buy CBKM (801 shares), Buy CBKM (50 shares), Buy CBKM (150 shares). Source: SEC Form 4.
来源:SEC Form 4 申报文件 · 截至 2026-08-11