0001437749-12-005622.txt : 20120530 0001437749-12-005622.hdr.sgml : 20120530 20120530134031 ACCESSION NUMBER: 0001437749-12-005622 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120527 FILED AS OF DATE: 20120530 DATE AS OF CHANGE: 20120530 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: PDF SOLUTIONS INC CENTRAL INDEX KEY: 0001120914 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING SERVICES [7371] IRS NUMBER: 251701361 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 333 WEST SAN CARLOS STREET STREET 2: SUITE 700 CITY: SAN JOSE STATE: CA ZIP: 95110 BUSINESS PHONE: 4082807900 MAIL ADDRESS: STREET 1: 333 WEST SAN JOSE STREET STREET 2: SUITE 700 CITY: SAN JOSE STATE: CA ZIP: 95110 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HARTGRING CORNELIS CENTRAL INDEX KEY: 0001233112 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-31311 FILM NUMBER: 12876844 MAIL ADDRESS: STREET 1: 333 WEST SAN CARLOS STREET STREET 2: SUITE 700 CITY: SAN JOSE STATE: CA ZIP: 95110 4 1 rdgdoc.xml PRIMARY DOCUMENT X0305 4 2012-05-27 0001120914 PDF SOLUTIONS INC PDFS 0001233112 HARTGRING CORNELIS 333 W. SAN CARLOS ST. SUITE 1000 SAN JOSE CA 95110 1 Vice President, CSS Common Stock 2012-05-27 4 F 0 310 8.87 D 67945 D This represents a disposition of shares to the Company to satisfy tax withholding obligations with respect to the vesting of restricted Stock rights. This is not a sale of shares in the market. /s/ Gregory Walker, Attorney-in-Fact for Cornelis Hartgring 2012-05-30