Exhibit 99.1 FOR IMMEDIATE RELEASE Investor Relations: Media Relations: Kevin Kessel, CFA Mike Dulin Vice President, Investor Relations Corporate & KLA Services Communications (408) 875-6627 michael.dulin@kla.com kevin.kessel@kla.com KLA Corporation Reports Fiscal 2024 Third Quarter Results • Total revenues were $2.36 billion, above the midpoint of the guidance range of $2.30 billion +/- $125 million; • GAAP diluted EPS attributable to KLA was $4.43 and non-GAAP diluted EPS attributable to KLA was $5.26, bo ...