News Release Exhibit 99.1 Axcelis Announces Financial Results for Fourth Quarter and Full Year 2025 Q4 Highlights: | | Three months ended | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | December 31, | | | | | | Twelve months ended December 31, | | | | 2025 | | | 2024 | 2025 | | | 2024 | | Revenue | $| 238,330 |$ | 252,417 | $| 839,048 |$ | 1,017,865 | | Gross margin | | 47.0% | | 46.0% | | 44.9% | | 44.7% | | Operating margin | | 15.2% | | 21.6% | | 14.2% | | 20.7% | | Net in ...