Exhibit 99.1 Cognizant Reports Third Quarter 2024 Results 1 • Revenue of $5.0 billion, increased 3.0% year-over-year or 2.7% in constant currency , the high end of our guidance ranges • Operating margin of 14.6%, sequentially flat and increased 60 basis points year-over-year; year-to-date operating margin of 14.6%, increased 110 basis points year-over-year • Adjusted Operating Margin of 15.3%, increased 10 basis points sequentially and decreased 20 basis points year-over-year; year-to-date Adjusted Operatin ...