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 |
2024-07-01 Sale |
2024-07-01 4:42 pm |
ALUMIS INC. | ALMS | Yao Zhengbin Director |
23,529 | $0 | $0 | 89,839 (Direct) |
View |
2021-03-13 Sale |
2021-03-15 09:15 am |
Viela Bio Inc. | VIE | Yao Zhengbin Chief Executive Officer |
470,219 | $53 | $24,921,607 | 0 (Indirect 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 |
2025-02-03 Option Award |
2025-02-14 4:27 pm |
N/A 2035-02-03 |
ArriVent BioPharma Inc. | AVBP | Yao Zhengbin President and CEO |
380,000 | $0 | 380,000 (Direct) |
View |
2024-06-27 Option Award |
2024-07-01 4:42 pm |
N/A 2034-06-26 |
ALUMIS INC. | ALMS | Yao Zhengbin Director |
89,839 | $0 | 89,839 (Direct) |
View |
Ownership |
2024-06-27 4:11 pm |
N/A N/A |
ALUMIS INC. | ALMS | Yao Zhengbin Director |
0 | $0 | 27,807 (Direct) |
View |
Ownership |
2024-01-25 8:39 pm |
N/A N/A |
ArriVent Biopharma Inc. | AVBP | Yao Zhengbin President and CEO |
0 | $0 | 1,369,489 (Indirect) |
View |
2023-07-05 Option Award |
2023-07-07 4:20 pm |
2024-07-05 2033-07-04 |
NexImmune Inc. | NEXI | Yao Zhengbin Director |
44,983 | $0 | 44,983 (Direct) |
View |
2023-04-04 Option Award |
2023-04-06 8:37 pm |
N/A 2032-06-12 |
NexImmune Inc. | NEXI | Yao Zhengbin Director |
94,356 | $0 | 94,356 (Direct) |
View |
2022-06-13 Option Award |
2022-06-15 4:57 pm |
2023-06-13 2032-06-12 |
NexImmune Inc. | NEXI | Yao Zhengbin Director |
61,678 | $0 | 61,678 (Direct) |
View |
2021-02-11 Option Award |
2021-02-16 2:56 pm |
N/A 2031-02-11 |
NexImmune Inc. | NEXI | Yao Zhengbin Director |
9,556 | $0 | 32,678 (Direct) |
View |
Ownership |
2021-02-11 7:18 pm |
N/A N/A |
NexImmune Inc. | NEXI | Yao Zhengbin Director |
0 | $0 | 35,756 (Direct) |
View |