KLA Investor Day Presentation Deck

History of Best-in-Class Margins Versus Leading Peers 80% 70% 60% 50% 40% 30% 20% 10% 0% CY11 CY12 CY13 CY14 Gross Margin¹ CY15 CY16 CY17 CY18 CY19 CY20 CY21 KLAC 2 Semi Cap Peers 45% 40% 35% 30% 25% 20% 15% 10% 5% 0% CY11 CY12 CY13 Operating Margin¹ CY14 KLAC CY15 CY16 CY17 CY18 Semi Cap Peers CY19 CY20 CY21 Market leadership, product differentiation, and operational excellence drive industry leading margins Source: Bloomberg, June 2022 | ¹Non-GAAP measure, please see Appendix for definition and GAAP to non-GAAP reconciliation. ²Semi Cap Peers include: AMAT, ASML, LRCX KLAH Investor Day 112

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