0001415889-22-011490.txt : 20221117 0001415889-22-011490.hdr.sgml : 20221117 20221117160639 ACCESSION NUMBER: 0001415889-22-011490 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20221115 FILED AS OF DATE: 20221117 DATE AS OF CHANGE: 20221117 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: GUSTAFSON MICHAEL B CENTRAL INDEX KEY: 0001245081 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-31311 FILM NUMBER: 221398409 MAIL ADDRESS: STREET 1: 380 INTERLOCKEN CRESCENT CITY: BROOMFIELD STATE: CO ZIP: 80021 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: PDF SOLUTIONS INC CENTRAL INDEX KEY: 0001120914 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 251701361 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2858 DE LA CRUZ BOULEVARD CITY: SANTA CLARA STATE: CA ZIP: 95050 BUSINESS PHONE: 4082807900 MAIL ADDRESS: STREET 1: 2858 DE LA CRUZ BOULEVARD CITY: SANTA CLARA STATE: CA ZIP: 95050 4 1 form4-11172022_091118.xml X0306 4 2022-11-15 0001120914 PDF SOLUTIONS INC PDFS 0001245081 GUSTAFSON MICHAEL B 2858 DE LA CRUZ BOULEVARD SANTA CLARA CA 95050 true false false false Common Stock 2022-11-15 4 S 0 2500 29.79 D 32404 D Common Stock 2022-11-16 4 S 0 2500 30.05 D 29904 D /s/ Kimon Michaels, Attorney-in-Fact for Michael B. Gustafson 2022-11-17