PDF Solutions Inc (PDFS) insider trading
Every open-market stock purchase and sale by PDF Solutions Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Andrzej Strojwas (CTO) and 1 other sold $228K in the last 90 days.
- Last insider buy: Michael B Gustafson (Insider), $146K, 17 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $228K (2 sales). Last close $44.01 on Oct 21, 2026.
Recent PDFS insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 1, 2026 | Kimon Michaels (VP) | Bought (not open market) | — |
| Sep 1, 2026 | Andrzej Strojwas (CTO) | Bought (not open market) | — |
| Sep 1, 2026 | Adnan Raza (CFO) | Bought (not open market) | — |
| Sep 1, 2026 | John Kachig Kibarian (CEO) | Bought (not open market) | — |
| Aug 31, 2026 | Andrzej Strojwas (CTO) | Sold | $151K |
| Aug 12, 2026 | Shuo Zhang (Director) | Sold | $77.3K |
| Jul 1, 2026 | Adnan Raza (CFO) | Sold (not open market) | $402K |
| Jul 1, 2026 | Andrzej Strojwas (CTO) | Sold (not open market) | $90.7K |
| Jul 1, 2026 | Adnan Raza (CFO) | Bought (not open market) | — |
| Jul 1, 2026 | Andrzej Strojwas (CTO) | Bought (not open market) | — |
| Jul 1, 2026 | Chi-Foon Chan (Director) | Bought (not open market) | — |
| Jul 1, 2026 | Michael B Gustafson (Director) | Bought (not open market) | — |
| Jul 1, 2026 | Shuo Zhang (Director) | Bought (not open market) | — |
| Jul 1, 2026 | Joseph R Bronson (Director) | Bought (not open market) | — |
| Jul 1, 2026 | Ye Jane Li (Director) | Bought (not open market) | — |
| Jul 1, 2026 | Nancy Erba (Director) | Bought (not open market) | — |
| Jan 1, 2026 | Adnan Raza (CFO) | Sold (not open market) | $157K |
| Jan 1, 2026 | Andrzej Strojwas (CTO) | Sold (not open market) | $78.8K |
| Dec 9, 2025 | Kimon Michaels (VP) | Sold (not open market) | — |
Who's trading PDFS
- John Kachig Kibarian, CEO: other filings, last Sep 1, 2026
- Kimon Michaels, VP: other filings, last Sep 1, 2026
- Adnan Raza, CFO: other filings, last Sep 1, 2026
- Andrzej Strojwas, CTO: sold $151K (1 sale), last Sep 1, 2026
- Shuo Zhang, Director: sold $77.3K (1 sale), last Aug 12, 2026
- Ye Jane Li, Insider: other filings, last Jul 1, 2026
- Chi-Foon Chan, Director: other filings, last Jul 1, 2026
- Nancy Erba, Insider: other filings, last Jul 1, 2026
- Michael B Gustafson, Insider: other filings, last Jul 1, 2026
- Joseph R Bronson, Director: other filings, last Jul 1, 2026
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