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 |
2021-06-01 Sale |
2021-06-02 9:02 pm |
Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer |
10,000 | $180.2 | $1,802,007 | 50,000 (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 |
2023-04-03 Exercise |
2023-04-05 4:05 pm |
N/A N/A |
Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer |
2,827 | $0 | 64,138 (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 |
2022-04-01 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 |
2021-04-01 Option Award |
2021-04-05 9:41 pm |
N/A 2031-04-01 |
Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer |
28,650 | $0 | 28,650 (Direct) |
View |
Ownership |
2021-01-04 07:33 am |
N/A N/A |
Zai Lab Ltd | ZLAB | Cho William Ki Chul Chief Financial Officer |
0 | $0 | 460,000 (Direct) |
View |