| Date | Issuer | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| PDF Solutions Inc. Chief Technology Officer | S | Common Stock | |||||
| PDF Solutions Inc. Chief Technology Officer | A | Common Stock | |||||
| PDF Solutions Inc. Chief Technology Officer | F | Common Stock | |||||
| PDF Solutions Inc. Chief Technology Officer | F | Common Stock | |||||
| PDF Solutions Inc. Chief Technology Officer | A | Common Stock |