Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2022-02-04 Sale | 2022-02-07 5:22 pm | Zai Lab Ltd | ZLAB | DIEKMAN JOHN D Director | 1,000 | $50.17 | $50,170 | 67,615 (Direct) | View |
2022-01-20 Sale | 2022-01-21 5:10 pm | Zai Lab Ltd | ZLAB | Lis William Director | 1,926 | $53.4 | $102,848 | 34,114 (Direct) | View |
2021-12-08 Purchase | 2021-12-08 8:56 pm | Zai Lab Ltd | ZLAB | WIRTH PETER Director | 4,000 | $71.36 | $285,440 | 342,852 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2022-12-30 Option Award | 2023-01-03 4:10 pm | N/A 2032-12-30 | Zai Lab Ltd | ZLAB | Amado Rafael See Remarks | 309,700 | $0 | 309,700 (Direct) | View |
2022-12-30 Tax Withholding | 2023-01-03 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 5,903 | $30.7 | 18,958 (Direct) | View |
2021-12-31 Ownership | 2022-12-09 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO | 8,000 | $0 | 1,000,653 (Direct) | View |
2022-01-05 Tax Withholding | 2022-12-09 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO | 828 | $45.47 | 859,450 (Direct) | View |
2022-01-05 Gift | 2022-12-09 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO | 143,775 | $0 | 859,450 (Direct) | View |
2022-04-01 Exercise | 2022-11-17 9:37 pm | N/A 2027-05-12 | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 1,854 | $0 | 36,341 (Direct) | View |
2022-04-01 Exercise | 2022-11-17 9:37 pm | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 1,854 | $3 | 36,341 (Direct) | View |
2022-04-01 Tax Withholding | 2022-11-17 9:37 pm | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 246 | $45.47 | 36,341 (Direct) | View |
2022-04-01(A) Tax Withholding | 2022-08-22 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 203 | $45.47 | 23,696 (Direct) | View |
2022-08-17 Exercise | 2022-08-19 5:44 pm | 2022-08-17 N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 4,850 | $0 | 22,515 (Direct) | View |
2022-08-17 Exercise | 2022-08-19 5:44 pm | N/A N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 4,850 | $43.52 | 22,515 (Direct) | View |
2022-08-17 Tax Withholding | 2022-08-19 5:44 pm | N/A N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 1,181 | $43.52 | 22,515 (Direct) | View |
2022-08-15 Option Award | 2022-08-16 4:05 pm | N/A 2032-08-15 | Zai Lab Ltd | ZLAB | Smiley Joshua L Chief Operating Officer | 218,500 | $0 | 218,500 (Direct) | View |
2022-06-25 Option Award | 2022-06-27 9:50 pm | N/A N/A | Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO | 235,200 | $0 | 235,200 (Direct) | View |
2022-06-25 Option Award | 2022-06-27 9:47 pm | N/A N/A | Zai Lab Ltd | ZLAB | Liang Yi CCO & President Greater China | 31,300 | $0 | 31,300 (Direct) | View |
2022-06-25 Option Award | 2022-06-27 9:47 pm | N/A N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 58,400 | $0 | 58,400 (Direct) | View |
2022-06-25 Option Award | 2022-06-27 9:46 pm | N/A N/A | Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer | 51,700 | $0 | 51,700 (Direct) | View |
2022-06-25 Option Award | 2022-06-27 9:44 pm | N/A N/A | Zai Lab Ltd | ZLAB | Sandler Alan B. Head of Global Dev. Oncology | 73,000 | $0 | 73,000 (Direct) | View |
2022-06-25 Option Award | 2022-06-27 9:42 pm | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 73,000 | $0 | 73,000 (Direct) | View |
2022-04-01 Option Award | 2022-04-05 4:06 pm | N/A 2032-04-01 | Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer | 59,652 | $0 | 114,252 (Direct) | View |
2022-04-01 Exercise | 2022-04-05 4:06 pm | N/A N/A | Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer | 920 | $0 | 114,252 (Direct) | View |
2022-04-01 Option Award | 2022-04-05 4:05 pm | N/A 2032-04-01 | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 83,513 | $0 | 110,732 (Direct) | View |
2022-04-01 Exercise | 2022-04-05 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 830 | $0 | 110,732 (Direct) | View |
2022-04-01 Option Award | 2022-04-05 4:05 pm | N/A 2032-04-01 | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 104,391 | $0 | 133,538 (Direct) | View |
2022-04-01 Exercise | 2022-04-05 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 1,010 | $0 | 133,538 (Direct) | View |
2022-04-01 Option Award | 2022-04-05 4:05 pm | N/A 2032-04-01 | Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO | 336,000 | $0 | 1,361,653 (Direct) | View |
2022-04-01 Exercise | 2022-04-05 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO | 3,400 | $0 | 1,361,653 (Direct) | View |
2022-04-01 Option Award | 2022-04-05 4:05 pm | N/A 2032-04-01 | Zai Lab Ltd | ZLAB | Liang Yi CCO & President Greater China | 44,739 | $0 | 152,506 (Direct) | View |
2022-04-01 Exercise | 2022-04-05 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Liang Yi CCO & President Greater China | 730 | $0 | 152,506 (Direct) | View |
2022-04-01 Option Award | 2022-04-05 4:05 pm | N/A 2032-04-01 | Zai Lab Ltd | ZLAB | Sandler Alan B. Head of Global Dev. Oncology | 104,391 | $0 | 137,616 (Direct) | View |
2022-04-01 Exercise | 2022-04-05 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Sandler Alan B. Head of Global Dev. Oncology | 1,060 | $0 | 137,616 (Direct) | View |
2022-01-03(A) Tax Withholding | 2022-02-15 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Chen Kai-Xian Director | 1,409 | $62.18 | 31,016 (Direct) | View |
2021-12-31 Ownership | 2022-02-14 4:06 pm | N/A N/A | Zai Lab Ltd | ZLAB | DIEKMAN JOHN D Director | 3,515 | $142.25 | 42,019 (Direct) | View |
2021-12-31 Ownership | 2022-02-14 4:06 pm | N/A N/A | Zai Lab Ltd | ZLAB | DIEKMAN JOHN D Director | 15,318 | $0 | 42,019 (Direct) | View |
2021-12-31 Ownership | 2022-02-14 4:05 pm | N/A N/A | Zai Lab Ltd | ZLAB | Lis William Director | 5,350 | $129.14 | 22,927 (Direct) | View |
2022-01-03 Option Award | 2022-01-04 9:15 pm | N/A N/A | Zai Lab Ltd | ZLAB | WIRTH PETER Director | 7,763 | $0 | 350,615 (Direct) | View |
2022-01-03 Option Award | 2022-01-04 9:14 pm | N/A N/A | Zai Lab Ltd | ZLAB | MOULDER LEON O JR Director | 7,763 | $0 | 21,615 (Direct) | View |
2022-01-03 Option Award | 2022-01-04 9:12 pm | N/A N/A | Zai Lab Ltd | ZLAB | Lis William Director | 7,763 | $0 | 36,040 (Direct) | View |
2022-01-03 Option Award | 2022-01-04 9:10 pm | N/A N/A | Zai Lab Ltd | ZLAB | Chen Kai-Xian Director | 7,763 | $0 | 32,425 (Direct) | View |
2022-01-03 Option Award | 2022-01-04 9:08 pm | N/A N/A | Zai Lab Ltd | ZLAB | DIEKMAN JOHN D Director | 7,763 | $0 | 68,615 (Direct) | View |
2021-12-29 Tax Withholding | 2021-12-30 4:18 pm | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See Remarks | 5,903 | $69.23 | 24,097 (Direct) | View |
2021-12-21 Option Award | 2021-12-27 09:36 am | N/A N/A | Zai Lab Ltd | ZLAB | Reinhart Harald See remarks | 30,000 | $0 | 30,000 (Direct) | View |
2021-12-01 Tax Withholding | 2021-12-03 6:29 pm | N/A N/A | Zai Lab Ltd | ZLAB | Sandler Alan B. Head of Global Dev. Oncology | 2,075 | $71.23 | 27,925 (Direct) | View |
2021-08-17 Tax Withholding | 2021-12-03 6:28 pm | N/A N/A | Zai Lab Ltd | ZLAB | Edmondson Frazor Titus III Chief Legal Officer | 1,181 | $140.29 | 23,069 (Direct) | View |