KLA Investor Day Presentation Deck

Product Differentiation and Operational Excellence Drive Success 70% 60% 50% 40% 30% KLAC Product Differentiation Measured by Gross Margin¹ CY11 CY12 CY13 CY14 CY15 CY16 CY17 CY18 CY19 CY20 CY21 KLAC Semi Cap² Source: Bloomberg; ¹Non-GAAP measure, please see Appendix for definition and GAAP to non-GAAP reconciliation. 2 Peers include: AMAT, ASML, LRCX 50% 40% 30% 20% 10% 0% Operational Excellence Measured by Operating Margin¹ KLAC CY11 CY12 CY13 CY14 KLAC CY15 CY16 CY17 CY18 CY19 Semi Cap ² CY20 CY21 KLAH Investor Day 27

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