Chen Yajing (CIK 1985694) reported 23 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-08). Recent activity: Sell ZLAB (853 shares), Buy ZLAB (13,758 shares), Buy ZLAB (2,500 shares), Sell ZLAB (5,199 shares), Buy ZLAB (1,500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-08 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 853 | $17,442 |
| 2026-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 13,758 | $0 |
| 2026-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 2,500 | $0 |
| 2026-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 5,199 | $106,008 |
| 2026-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 1,500 | $0 |
| 2026-03-16 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 4,258 | $0 |
| 2026-03-16 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 1,703 | $31,727 |
| 2025-11-04 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 500 | $0 |
| 2025-11-04 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 240 | $6,439 |
| 2025-10-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 920 | $0 |
| 2025-10-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 456 | $15,618 |
| 2025-08-18 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 1,250 | $0 |
| 2025-08-18 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 610 | $21,515 |
| 2025-08-18 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 828 | $29,419 |
| 2025-08-12 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 4,096 | $139,305 |
| 2025-06-27 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 2,675 | $96,648 |
| 2025-06-27 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 6,250 | $0 |
| 2025-06-04 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 9,618 | $288,540 |
| 2025-04-07 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 2,500 | $0 |
| 2025-04-07 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 924 | $30,594 |
| 2025-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Sell | 5,280 | $189,499 |
| 2025-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 1,500 | $0 |
| 2025-04-03 | Zai Lab Ltd (ZLAB) | Chief Financial Officer | Buy | 13,757 | $0 |
Source: SEC Form 4 filings · as of 2026-04-08