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 |
2024-06-03 Sale |
2024-06-04 6:07 pm |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
5,500 | $34.66 | $190,630 | 10,381 (Direct) |
View |
2023-08-18 Sale |
2023-08-21 7:45 pm |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
3,047 | $33.75 | $102,836 | 15,881 (Direct) |
View |
2022-11-16 Sale |
2022-11-17 4:04 pm |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
2,000 | $29.84 | $59,680 | 15,574 (Direct) |
View |
2022-03-15 Sale |
2022-03-17 1:29 pm |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
11,017 | $25.5 | $280,934 | 10,362 (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 |
2024-07-01 Option Award |
2024-07-02 08:05 am |
N/A N/A |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
4,382 | $0 | 14,763 (Direct) |
View |
2023-07-01 Option Award |
2023-07-05 2:41 pm |
N/A N/A |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
3,354 | $0 | 18,928 (Direct) |
View |
2022-07-01 Option Award |
2022-07-05 8:16 pm |
N/A N/A |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
7,212 | $0 | 17,574 (Direct) |
View |
2021-07-01 Option Award |
2021-07-02 4:57 pm |
N/A N/A |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
4,688 | $0 | 21,379 (Direct) |
View |
2020-08-01 Option Award |
2020-08-04 7:17 pm |
N/A N/A |
PDF SOLUTIONS INC | PDFS | Zhang Shuo Director |
4,688 | $0 | 16,691 (Direct) |
View |