Advantest Corporation Exits Position in PDF Solutions, Inc. (PDFS)

Advantest Corporation and its subsidiary, Advantest America, Inc., filed an Amendment No. 1 to their Schedule 13G on May 27, 2026, regarding their holdings in PDF Solutions, Inc. (PDFS). The filing indicates that as of the event date on May 15, 2026, the reporting persons have ceased to be the beneficial owners of more than five percent of the issuer's common stock. Specifically, both Advantest America, Inc. and Advantest Corporation reported owning 0 shares, representing a 0.0% ownership stake. This is a significant decrease from their previous position, effectively exiting their reportable stake in the company. Advantest America is a Delaware corporation, while Advantest Corporation is based in Japan. The filing was made under Rule 13d-1(c) and includes a certification that the shares were not held for the purpose of influencing or changing the control of the issuer. This filing serves as the final amendment to their Schedule 13G for PDF Solutions, Inc.