0001437749-11-003739.txt : 20110601 0001437749-11-003739.hdr.sgml : 20110601 20110601185922 ACCESSION NUMBER: 0001437749-11-003739 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110527 FILED AS OF DATE: 20110601 DATE AS OF CHANGE: 20110601 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Caulfield Thomas CENTRAL INDEX KEY: 0001342570 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-31311 FILM NUMBER: 11886645 MAIL ADDRESS: STREET 1: 4000 NORTH FIRST STREET CITY: SAN JOSE STATE: CA ZIP: 95134 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 4 1 rdgdoc.xml PRIMARY DOCUMENT X0303 4 2011-05-27 0001120914 PDF SOLUTIONS INC PDFS 0001342570 Caulfield Thomas 333 W. SAN CARLOS ST. SUITE 700 SAN JOSE CA 95110 1 Restricted Stock Unit 2011-05-27 4 A 0 3750 0 A 21965 D 2001 Stock Plan Option (right to buy) 6.21 2011-05-27 4 A 0 11250 0 A 2011-06-27 2021-05-27 Common Stock 11250 11250 D 1/48th of the total number of shares will vest on June 27, 2011 and 1/48th of the total shares will vest on the 27th of each month, provided that the reporting person continues to serve as a director on the Board of Directors. /s/ Joy E. Leo, Attorney-in-Fact for Thomas Caulfield 2011-06-01