Shuo Zhang serves as Executive at PDF SOLUTIONS INC, where they oversee executive responsibilities. Since joining the company, Shuo Zhang has executed 26 insider transactions totaling $1.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 23, 2025 involved receiving (via award) 11,413 shares valued at $0.
Shuo Zhang currently holds 103,928 shares of PDF SOLUTIONS INC (PDFS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Shuo Zhang has been a net seller of PDFS stock. They have purchased $79.1K and sold $1.3M worth of shares.
Shuo Zhang's most recent insider trade was on Dec 23, 2025, when they sold 11,413 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Dec 15, 2025 | GDYN | $29.3K | Sale | 3,000 | $9.75 | Discretionary |
| Jul 1, 2025 | PDFS | $0 | Award | 7,429 | $N/A | Discretionary |
| Jun 3, 2024 | PDFS | $190.6K | Sale | 5,500 | $34.66 | Discretionary |
| Jun 3, 2024 | GDYN | $37.4K | Sale | 4,000 | $9.34 | Discretionary |
| Dec 19, 2023 | GDYN | $0 | Award | 5,559 | $N/A | Discretionary |
| Aug 18, 2023 | PDFS | $102.8K | Sale | 3,047 | $33.75 | Discretionary |
| Jul 1, 2023 | PDFS | $0 | Award | 3,354 | $N/A | Discretionary |
| Dec 22, 2022 | GDYN | $0 | Award | 6,811 | $N/A | Discretionary |
| Nov 16, 2022 | PDFS | $59.7K | Sale | 2,000 | $29.84 | Discretionary |
| Jul 1, 2022 | PDFS | $0 | Award | 7,212 | $N/A | Discretionary |
| Mar 15, 2022 | PDFS | $280.9K | Sale | 11,017 | $25.50 | Discretionary |
| Dec 20, 2021 | GDYN | $0 | Award | 2,050 | $N/A | Discretionary |
| Nov 29, 2021 | GDYN | $275.7K | Sale | 7,000 | $39.38 | Discretionary |
| Oct 15, 2021 | GDYN | $4.1K | Other | 402 | $10.19 | Discretionary |
| Sep 8, 2021 | GDYN | $316.3K | Sale | 10,000 | $31.63 | Discretionary |
| Jul 1, 2021 | PDFS | $0 | Award | 4,688 | $N/A | Discretionary |
| Mar 1, 2021 | GDYN | $0 | Award | 880 | $N/A | Discretionary |
| Dec 15, 2020 | GDYN | $0 | Award | 6,762 | $N/A | Discretionary |
| Nov 2, 2020 | GDYN | $0 | Award | 1,747 | $N/A | Discretionary |
| Sep 17, 2020 | GDYN | $0 | Award | 6,405 | $N/A | Discretionary |
| Aug 12, 2020 | GDYN | $79.1K | Purchase | 10,395 | $7.61 | Discretionary |
| Aug 3, 2020 | GDYN | $0 | Award | 2,004 | $N/A | Discretionary |
| Aug 1, 2020 | PDFS | $0 | Award | 4,688 | $N/A | Discretionary |
| Aug 1, 2019 | PDFS | $0 | Award | 12,003 | $N/A | Discretionary |