FORM10-Q ☑QUARTERLY REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIES EXCHANGEACT OF 1934 For the quarterly period ended June 30, 2026 or TRANSITION REPORT PURSUANT TO SECTION13 OR 15(d)OF THE SECURITIES EXCHANGEACT 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) Delaware25-1701361(State or Other Jurisdiction of Incorporation or Organization)(I.R.S. Employer Identification No.) 2858 De La Cruz Blvd.Santa Clara, California95050(Address of Principal Executive Offices)(Zip Code) (408) 280-7900(Registrant’s Telephone Number, Including Area Code) Securities registered pursuant to Section12(b)of the Act: Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d)of the SecuritiesExchange Act of 1934 during the preceding 12months (or for such shorter period that the registrant was required to file such reports), and(2)has been subject to such filing requirements for the past 90days.Yes☑No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant toRule405 of Regulation S-T (§232.405 of this chapter) during the preceding 12months (or for such shorter period that the registrant wasrequired to submitsuch files). Yes☑No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reportingcompany” and“emerging growth company” in Rule12b‑2 of the Exchange Act. Accelerated filer☐Smaller reporting company☐Emerging growth company☐ Large accelerated filer☑Non-acceleratedfiler☐ If an emerging growth company, indicateby check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section13(a)of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule12b‑2 of the Exchange Act). Yes☐No☑ There were 42,227,216 shares of the Registrant’s Common Stock outstanding as of August 3, 2026. TABLE OF CONTENTS PARTIFINANCIAL INFORMATIONItem1. Financial Statements (Unaudited) Condensed Consolidated Balance SheetsCondensed Consolidated Statements of Operations and Comprehensive Income (Loss)Condensed Consolidated Statements of Stockholders’EquityCondensed Consolidated Statements of Cash FlowsNotesto Condensed Consolidated Financial StatementsItem2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem3. Quantitative and Qualitative Disclosures About Market RiskItem4. Controls and ProceduresPARTIIOTHER INFORMATIONItem1. Legal ProceedingsItem1A. Risk FactorsItem2. Unregistered Sales of Equity Securities and Use of ProceedsItem3. Defaults Upon Senior SecuritiesItem4. Mine Safety DisclosuresItem5. Other InformationItem6. ExhibitsINDEX TO EXHIBITSSIGNATURES PARTI—FINANCIAL INFORMATION PDF SOLUTIONS,INC.CONDENSED CONSOLIDATED BALANCE SHEETS(Unaudited)(in thousands, except par value) PDF SOLUTIONS,INC.CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’EQUITY(Unaudited)(in thousands) PDF SOLUTIONS,INC.CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’EQUITY(Unaudited)(in thousands) PDF SOLUTIONS,INC.CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(Unaudited)(in thousands) PDF SOLUTIONS,INC.CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS–CONTINUED(Unaudited)(in thousands) See accompanyingNotesto Condensed Consolidated Financial Statements (Unaudited) PDF SOLUTIONS,INC.NOTESTO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) 1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The interim unaudited condensed consolidated financial statements included herein have been prepared by PDF Solutions,Inc. (the“Company”) pursuant to the rulesand regulations of the Securities and Exchange Commission (“SEC”), including the instructions toQuarterly Report on Form10‑Q and Article10 of Regulation S-X. Certain information and footnote disclosures normally included inannual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States ofAmerica (“U.S. GAAP”) have been condensed or omitted. The interim unaudited condensed consolidated financial statements reflect, inthe opinion of management, all adjustments necessary (consisting only of normal recurring adjustments)to present a fair statement ofresults for the interim periods presented. The operating results for any interim period are not necessarily indicative of the results that maybe expected for other interim periods or the full fiscalyear. The interim unaudited condensed consolidated financial statements should beread in