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 |
2021-09-07 Sale |
2021-09-08 8:48 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
29,785 | $150.73 | $4,489,523 | 1,008,653 (Direct) |
View |
2021-09-01 Sale |
2021-09-03 6:43 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
81,326 | $145.8 | $11,857,247 | 1,927,603 (Direct) |
View |
2021-08-02 Sale |
2021-08-03 8:15 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $144.99 | $16,110,015 | 2,008,929 (Direct) |
View |
2021-07-01 Sale |
2021-07-02 6:02 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $175.61 | $19,511,750 | 2,120,040 (Direct) |
View |
2021-06-01 Sale |
2021-06-02 9:00 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $176.3 | $19,589,250 | 2,231,151 (Direct) |
View |
2021-05-03 Sale |
2021-05-04 8:37 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $160.05 | $17,782,976 | 786,430 (Direct) |
View |
2021-04-05 Sale |
2021-04-07 7:55 pm |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,112 | $128.19 | $14,243,682 | 897,541 (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 |
2025-04-03 Exercise |
2025-04-07 4:48 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
6,750 | $0 | 500,101 (Direct) |
View |
2025-04-01 Exercise |
2025-04-03 5:07 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
14,200 | $0 | 501,046 (Direct) |
View |
2025-03-14 Gift |
2025-03-18 5:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
26,463 | $0 | 467,654 (Direct) |
View |
2025-03-10 Option Award |
2025-03-12 4:26 pm |
N/A 2035-03-10 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
263,205 | $0 | 263,205 (Direct) |
View |
2025-03-04 Exercise |
2025-03-06 4:20 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
96,389 | $0 | 1,326,058 (Direct) |
View |
2025-03-04 Exercise |
2025-03-06 4:20 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
96,389 | $0.6 | 1,326,058 (Direct) |
View |
2025-02-28 Exercise |
2025-03-04 5:11 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
100,000 | $0 | 1,522,447 (Direct) |
View |
2025-02-28 Exercise |
2025-03-04 5:11 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
100,000 | $0.6 | 1,522,447 (Direct) |
View |
2024-12-11 Gift |
2024-12-13 4:47 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
500,000 | $0 | 494,117 (Direct) |
View |
2024-08-13 Gift |
2024-08-19 4:46 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
87,793 | $0 | 994,117 (Direct) |
View |
2024-07-01 Option Award |
2024-07-02 4:30 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
72,000 | $0 | 1,207,820 (Direct) |
View |
2024-06-28 Exercise |
2024-07-02 4:30 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
17,970 | $0 | 1,207,820 (Direct) |
View |
2024-06-25 Exercise |
2024-06-27 4:08 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
58,800 | $0 | 1,260,433 (Direct) |
View |
2024-04-03 Option Award |
2024-04-05 5:47 pm |
N/A 2034-04-03 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
560,065 | $0 | 560,065 (Direct) |
View |
2024-04-01 Exercise |
2024-04-03 9:44 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
14,200 | $0 | 1,147,172 (Direct) |
View |
2024-04-01 Exercise |
2024-04-03 9:44 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
14,200 | $16.72 | 1,147,172 (Direct) |
View |
2024-03-13 Gift |
2024-03-15 8:49 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
33,891 | $0 | 1,099,559 (Direct) |
View |
2024-01-01 Option Award |
2024-01-03 7:25 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
31,587 | $0 | 1,165,037 (Direct) |
View |
2024-01-01 Exercise |
2024-01-03 7:25 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
31,587 | $0 | 1,165,037 (Direct) |
View |
2023-06-29 Option Award |
2023-06-30 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
71,880 | $26.45 | 1,110,243 (Direct) |
View |
2023-06-23 Exercise |
2023-06-26 4:06 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
58,800 | $0 | 1,255,451 (Direct) |
View |
2023-06-23 Exercise |
2023-06-26 4:06 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
58,800 | $25.3 | 1,255,451 (Direct) |
View |
2023-06-23 Tax Withholding |
2023-06-26 4:06 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
23,138 | $25.3 | 1,255,451 (Direct) |
View |
2023-04-03 Option Award |
2023-04-05 4:06 pm |
N/A 2033-04-03 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
377,391 | $0 | 377,391 (Direct) |
View |
2023-03-31 Exercise |
2023-04-03 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
14,200 | $0 | 1,056,101 (Direct) |
View |
2023-03-31 Tax Withholding |
2023-04-03 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
5,588 | $33.26 | 1,056,101 (Direct) |
View |
2023-03-31 Exercise |
2023-04-03 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
14,200 | $33.26 | 1,056,101 (Direct) |
View |
2023-03-06 Exercise(A) |
2023-03-08 4:11 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
300,000 | $0 | 1,583,254 (Direct) |
View |
2023-03-06 Exercise(A) |
2023-03-08 4:11 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
300,000 | $0.6 | 1,583,254 (Direct) |
View |
2023-03-03 Gift(A) |
2023-03-08 4:11 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
426 | $0 | 1,583,254 (Direct) |
View |
2023-03-06 Tax Withholding(A) |
2023-03-08 4:11 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
120,906 | $40.55 | 1,583,254 (Direct) |
View |
2023-03-06 Exercise |
2023-03-07 4:05 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
300,000 | $0 | 1,583,254 (Direct) |
View |
2023-03-03 Gift |
2023-03-07 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
21,990 | $0 | 1,583,254 (Direct) |
View |
2023-03-06 Tax Withholding |
2023-03-07 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairperson & CEO |
120,906 | $0 | 1,583,254 (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 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 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 |
2022-06-25 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 |
2022-04-01 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 |
2021-09-01 Exercise |
2021-09-03 6:43 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0 | 1,927,603 (Direct) |
View |
2021-09-01 Exercise |
2021-09-03 6:43 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0.6 | 1,927,603 (Direct) |
View |
2021-08-02 Exercise |
2021-08-03 8:15 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0 | 2,008,929 (Direct) |
View |
2021-08-02 Exercise |
2021-08-03 8:15 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0.6 | 2,008,929 (Direct) |
View |
2021-07-01 Exercise |
2021-07-02 6:02 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0 | 2,120,040 (Direct) |
View |
2021-07-01 Exercise |
2021-07-02 6:02 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0.6 | 2,120,040 (Direct) |
View |
2021-06-01 Exercise |
2021-06-02 9:00 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0 | 2,231,151 (Direct) |
View |
2021-06-01 Exercise |
2021-06-02 9:00 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0.6 | 2,231,151 (Direct) |
View |
2021-05-01 Exercise(A) |
2021-06-02 8:58 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0 | 3,462,026 (Direct) |
View |
2021-05-01 Exercise(A) |
2021-06-02 8:58 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,111 | $0.6 | 3,462,026 (Direct) |
View |
2021-04-05 Exercise(A) |
2021-06-02 8:57 pm |
N/A 2025-10-22 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,112 | $0 | 3,573,138 (Direct) |
View |
2021-04-05 Exercise(A) |
2021-06-02 8:57 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
111,112 | $0.6 | 3,573,138 (Direct) |
View |
2021-04-01 Gift |
2021-04-07 7:55 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
16,000 | $0 | 897,541 (Direct) |
View |
2021-04-01 Option Award |
2021-04-05 9:46 pm |
N/A 2031-04-01 |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
104,000 | $0 | 104,000 (Direct) |
View |
Ownership |
2021-01-04 07:32 am |
N/A N/A |
Zai Lab Ltd | ZLAB | Du Ying Chairwoman & CEO |
0 | $0 | 5,007,045 (Direct) |
View |