Financial Overview and Growth Strategy

Balance Sheet Strength End of End of Q1 ($ Millions) 2020 2021 2022 Cash and ST invt $145.3 $140.2 $134.2 Debt $0 $0 $0 PDF/SOLUTIONS™ © 2022 PDF Solutions, All Rights Reserved STRENGTH Existing balance sheet strength provides foundation for investment in growth of analytics business both organically and inorganically Shares buyback $5.8M in Q1'22 ■ Shares buyback $16.7M subsequent to quarter end, for a total of $22.5M YTD Investments made in R&D, PP&E, M&A, S&M and share buyback 20

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