Zhang Shuo
SEC CIK 1782026 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| PDFS | PDF SOLUTIONS INC | Dir | 23.4K | — | $711.3K | 11 | 2021-07-01 | 2026-08-12 |
Most active insiders at PDFS, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Strojwas Andrzej | CTO | — | $150.7K |
| 2 | Zhang Shuo | Dir | — | $77.3K |
| 3 | Raza Adnan | EVP, CFO, Fin | — | — |
| 4 | Erba Nancy | Dir | — | — |
| 5 | Li Ye Jane | Dir | — | — |
| 6 | CHAN CHI-FOON | Dir | — | — |
| 7 | GUSTAFSON MICHAEL B | Dir | — | — |
| 8 | BRONSON JOSEPH R | Dir | — | — |
| 9 | MICHAELS KIMON | EVP of Products, Solutions, Dir | — | — |
Transactions 11
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-12 21:32 | 2026-08-12 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | S - Sale | $51.47 | -1,501 | 23.4K | -6% | -$77.3K | |
| 2026-07-02 16:44 | 2026-07-01 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | A - Grant | — | +2,689 | 24.9K | +12% | — | |
| 2025-07-02 | 2025-07-01 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | A - Grant | — | +7,429 | 22.2K | +50% | — | |
| 2024-07-02 | 2024-07-01 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | A - Grant | — | +4,382 | 14.8K | +42% | — | |
| 2024-06-04 | 2024-06-03 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | S - Sale | $34.66 | -5,500 | 10.4K | -35% | -$190.6K | |
| 2023-08-21 | 2023-08-18 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | S - Sale | $33.75 | -3,047 | 15.9K | -16% | -$102.8K | |
| 2023-07-05 | 2023-07-01 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | A - Grant | — | +3,354 | 18.9K | +22% | — | |
| 2022-11-17 | 2022-11-16 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | S - Sale | $29.84 | -2,000 | 15.6K | -11% | -$59.7K | |
| 2022-07-05 | 2022-07-01 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | A - Grant | — | +7,212 | 17.6K | +70% | — | |
| 2022-03-17 | 2022-03-15 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | S - Sale | $25.50 | -11.0K | 10.4K | -52% | -$280.9K | |
| 2021-07-02 | 2021-07-01 | PDFS | PDF SOLUTIONS INC | Zhang Shuo | Dir | A - Grant | — | +4,688 | 21.4K | +28% | — |
Purchase Sale Sale after option exercise All abbreviations