Du Ying Insider Trading -- Recent SEC Form 4 Transactions

Du Ying (CIK 1731790) reported 89 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-06). Recent activity: Buy ZLAB (18,000 shares), Sell ZLAB (7,083 shares), Buy ZLAB (11,048 shares), Sell ZLAB (4,348 shares), Buy ZLAB (17,970 shares). Source: SEC Form 4.

DateCompanyRoleTypeSharesValue
2026-07-06Zai Lab Ltd (ZLAB)Chairperson & CEOBuy18,000$0
2026-07-06Zai Lab Ltd (ZLAB)Chairperson & CEOSell7,083$135,639
2026-07-06Zai Lab Ltd (ZLAB)Chairperson & CEOBuy11,048$0
2026-07-06Zai Lab Ltd (ZLAB)Chairperson & CEOSell4,348$83,134
2026-07-01Zai Lab Ltd (ZLAB)Chairperson & CEOBuy17,970$0
2026-07-01Zai Lab Ltd (ZLAB)Chairperson & CEOSell7,026$130,220
2026-05-21Zai Lab Ltd (ZLAB)Chairperson & CEOBuy261,092$454,300
2026-05-21Zai Lab Ltd (ZLAB)Chairperson & CEOSell117,435$2.2M
2026-05-19Zai Lab Ltd (ZLAB)Chairperson & CEOBuy50,000$87,000
2026-05-19Zai Lab Ltd (ZLAB)Chairperson & CEOSell50,000$1.0M
2026-05-19Zai Lab Ltd (ZLAB)Chairperson & CEOBuy50,000$87,000
2026-05-19Zai Lab Ltd (ZLAB)Chairperson & CEOSell50,000$949,765
2026-05-15Zai Lab Ltd (ZLAB)Chairperson & CEOSell16,231$315,583
2026-05-15Zai Lab Ltd (ZLAB)Chairperson & CEOSell33,769$682,887
2026-05-15Zai Lab Ltd (ZLAB)Chairperson & CEOBuy50,000$87,000
2026-05-15Zai Lab Ltd (ZLAB)Chairperson & CEOSell50,000$1.0M
2026-05-15Zai Lab Ltd (ZLAB)Chairperson & CEOBuy50,000$87,000
2026-04-08Zai Lab Ltd (ZLAB)Chairperson & CEOSell2,653$54,249
2026-04-03Zai Lab Ltd (ZLAB)Chairperson & CEOBuy10,800$0
2026-04-03Zai Lab Ltd (ZLAB)Chairperson & CEOBuy3,400$0
2026-04-03Zai Lab Ltd (ZLAB)Chairperson & CEOBuy6,750$0
2026-04-03Zai Lab Ltd (ZLAB)Chairperson & CEOSell5,576$113,695
2026-03-12Zai Lab Ltd (ZLAB)Chairperson & CEOBuy2,655$0
2026-03-12Zai Lab Ltd (ZLAB)Chairperson & CEOBuy261,092$454,300
2026-03-12Zai Lab Ltd (ZLAB)Chairperson & CEOSell116,936$2.3M

Source: SEC Form 4 filings · as of 2026-07-06