X0508 4 2025-05-21 1 0000704532 ONTO INNOVATION INC. ONTO 0001278861 TSINGOS CHRISTINE A 1 0 0 0 0 This exit Form 4 is filed solely to report that, effective May 21, 2025, the reporting person is no longer a director of Onto Innovation. By: Mark R. Slicer For: Christine A. Tsingos 2025-05-23