ONTO INNOVATION INC. — Director's Dealing 2025

May 23, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ONTO INNOVATION INC. (ONTO)
CIK: 0000704532
Period of Report: 2025-05-21

Reporting Person: Su May (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-21	Common Stock	A	2114	$0.0	Acquired	7223	Direct

Footnotes

F1: The Reporting Person was granted restricted stock units ("RSUs"), each of which represents a contingent right to receive one (1) share of ONTO Common Stock. 100% of the shares of Common Stock subject to the RSU vest one (1) year from the grant date.