Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______________ to ______________ Commission File Number 000-31311 PDF SOLUTIONS, INC. (Exact name of Registrant as Specified in its Charter) Delaware ...

PDF SOLUTIONS, INC. 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, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to 000-31311 (Commission file number) (Exact name of registrant as specified in its charter) Delaware 25-1701361 (State or ot ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q4 2020 Earnings Conference Call February 18, 2021 5:00 PM ET Company Participants Joe Diaz - Lytham Partners LLC, Managing Partner John Kibarian - President & Chief Executive Officer Adnan Raza - Executive Vice President & Chief Financial Officer Conference Call Participants Tom Diffely - D.A. Davidson Tyler Burmeister - Craig-Hallum Jon Tanwanteng - CJS Securities Gus Richard - Northland Operator Good day, ladies and gentlemen, and welcome to the PDF Solutions Inc. Confer ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q3 2020 Earnings Conference Call November 5, 2020 5:00 PM ET Company Participants Joe Diaz - Lytham Partners LLC, Managing Partner John Kibarian - President & Chief Executive Officer Adnan Raza - Executive Vice President & Chief Financial Officer Conference Call Participants Tom Diffely - D.A. Davidson Jon Tanwanteng - CJS Securities Gus Richard - Northland Operator Good day, ladies and gentlemen, and welcome to the PDF Solutions Incorporated Conference Call to discuss the ...

© 2020 PDF Solutions, All Rights Reserved1 Investor Presentation August 2020 John Kibarian, President & CEO, Co-Founder Kimon Michaels, Executive VP, Products and Solutions, Co-Founder Adnan Raza, Executive VP, Finance & CFO | --- | --- | |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q2 2020 Earnings Conference Call August 6, 2020 5:00 PM ET Company Participants Joe Diaz – Investor Relations John Kibarian – President and Chief Executive Officer Adnan Raza – Executive Vice President and Chief Financial Officer Conference Call Participants Tyler Leroy Burmeister – Craig-Hallum Tom Diffely – D.A. Davidson Jon Tanwanteng – CJS Securities Jeff Bernstein – Cowen Operator Good day, ladies and gentlemen, and welcome to the PDF Solutions, Inc. Conference Call to ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q1 2020 Earnings Conference Call May 7, 2020 5:00 PM ET Company Participants Joe Diaz - IR, Lytham Partners John Kibarian - President & CEO Adnan Raza - EVP & CFO Conference Call Participants Tom Diffely - D.A. Davidson Jon Tanwanteng - CJS Securities Andrew Weiner - Samjo Capital Operator Good day, ladies and gentlemen and welcome to the PDF Solutions, Inc. Conference Call to discuss the company's financial results for the first quarter ended March 31, 2020. [Operator inst ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q4 2019 Earnings Conference Call February 13, 2020 5:00 PM ET Company Participants Joe Diaz - IR, Lytham Partners John Kibarian - President & CEO Christine Russell - CFO Kimon Michaels - Co-Founder and EVP Conference Call Participants Christian Schwab - Craig-Hallum Capital Gus Richard - Northland Jon Tanwanteng - CJS Securities Operator Good day, ladies and gentlemen and welcome to the PDF Solutions, Inc. Conference Call to discuss the company's financial results for the f ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q3 2019 Earnings Conference Call October 31, 2019 5:00 PM ET Company Participants John Kibarian – President and Chief Executive Officer Christine Russell – Chief Financial Officer Conference Call Participants Christian Schwab – Craig-Hallum Capital Gus Richard – Northland Tom Diffely – D.A. Davidson Jon Tanwanteng – CJS Securities Operator Good day, ladies and gentlemen. And welcome to the PDF Solutions, Inc. conference call to discuss its financial results for the third qu ...

PDF Solutions, Inc. (NASDAQ:PDFS) Q2 2019 Earnings Conference Call August 1, 2019 5:00 PM ET Company Participants John Kibarian – President and Chief Executive Officer Christine Russell – Chief Financial Officer Conference Call Participants Jon Tanwanteng – CJS Securities Tom Diffely – D.A. Davidson Gus Richard – Northland Christian Schwab – Craig-Hallum Operator Good day, ladies and gentlemen, and welcome to the PDF Solutions, Inc. Conference Call to discuss its financial results for the Second Quarter end ...