PDF SOLUTIONS INC — Director's Dealing 2025

Aug 5, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PDF SOLUTIONS INC (PDFS)
CIK: 0001120914
Period of Report: 2025-08-01

Reporting Person: Strojwas Andrzej (Chief Technology Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-08-01	Common Stock	A	8000	—	Acquired	91966	Direct

Footnotes

F1: These shares represent an award of restricted stock units (Total RSUs). 12.5% of the Total RSUs will vest on January 1, 2026 and 12.5% of the Total RSU will vest each date that is 6 (six) months thereafter until fully vested, subject to the Recipient's continued service through each applicable vest date.

F2: Includes 353 shares of common stock that were purchased on July 31, 2025 under the PDF Employee Stock Purchase Plan