PDF SOLUTIONS INC (PDFS) has 111 open-market insider trades by 21 insiders since 2006. Over the last six months insiders net sold $228K. The most active filer is Cornelis Hartgring, President & VP.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Cornelis Hartgring | PresVP | — | 20 | $5.9M | 2018-06-01 |
| Adnan Raza | CFOVP | — | 5 | $5.0M | 2026-07-01 |
| Lucio Lanza | Dir | — | 12 | $3.7M | 2017-08-18 |
| Gregory C. Walker | CFOVP | — | 12 | $3.3M | 2018-07-01 |
| John Kachig Kibarian | CEOPres | — | 1 | $2.3M | 2025-02-25 |
| P. Steven Melman | VP Investor Relations | — | 4 | $2.0M | 2009-05-15 |
| Michael B. Gustafson | Dir | — | 8 | $1.9M | 2026-07-01 |
| Andrzej Strojwas | CTO | — | 5 | $1.5M | 2026-08-31 |
| Joseph R. Bronson | Dir | — | 2 | $1.5M | 2026-07-01 |
| Shuo Zhang | Dir | — | 5 | $1.3M | 2026-08-12 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Andrzej Strojwas | CTO | Sell | $151K | 2026-08-31 |
| Shuo Zhang | Director | Sell | $77K | 2026-08-12 |
| Michael B. Gustafson | Director | Buy | $146K | 2025-05-13 |
| John Kachig Kibarian | CEO & President | Buy | $2.3M | 2025-02-24 |
| Michael B. Gustafson | Director | Buy | $92K | 2025-02-24 |
| Andrzej Strojwas | CTO | Sell | $372K | 2024-12-17 |
Companies that share insiders with PDFS, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Andrzej Strojwas | CTO | Sell | $310K | 2024-12-16 |
| Nancy Erba | Director | Sell | $62K | 2024-12-11 |
| Shuo Zhang | Director | Sell | $381K | 2024-06-03 |
| Adnan Raza | CFO & VP | Sell | $1.8M | 2024-05-15 |
| Ye Jane Li | Director | Sell | $694K | 2024-02-23 |
| Joseph R. Bronson | Director | Sell | $1.0M | 2024-02-21 |
| Michael B. Gustafson | Director | Sell | $329K | 2023-12-12 |
| Nancy Erba | Director | Sell | $55K | 2023-11-29 |
| Shuo Zhang | Director | Sell | $206K | 2023-08-18 |