PDF Solutions(PDFS) - 2021 Q4 - Annual Report

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 000-31311 (Commission file number) 2858 De La Cruz Blvd. 95050 Santa Clara, California (Zip Code) (Address of Registrant's principal executive of ices) (408) 280-7900 (Registrant' ...