# EDGAR Filing Document

**Accession Number:** 0000704532
**File Stem:** 0001193125-26-143707
**Filing Date:** 2026-4
**Character Count:** 1364
**Document Hash:** 2bfa04def1140711b769275e969ad8af
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-143707.hdr.sgml**: 20260406

**ACCESSION NUMBER**: 0001193125-26-143707

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260103

**FILED AS OF DATE**: 20260406

**DATE AS OF CHANGE**: 20260406

**EFFECTIVENESS DATE**: 20260406

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ONTO INNOVATION INC.
- **CENTRAL INDEX KEY:** 0000704532
- **STANDARD INDUSTRIAL CLASSIFICATION:** MEASURING & CONTROLLING DEVICES, NEC [3829]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 942276314
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1226

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39110
- **FILM NUMBER:** 26841123

**BUSINESS ADDRESS:**
- **STREET 1:** 16 JONSPIN ROAD
- **CITY:** WILMINGTON
- **STATE:** MA
- **ZIP:** 01887
- **BUSINESS PHONE:** 9782536200

**MAIL ADDRESS:**
- **STREET 1:** 16 JONSPIN ROAD
- **CITY:** WILMINGTON
- **STATE:** MA
- **ZIP:** 01887

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Onto Innovation Inc.
- **DATE OF NAME CHANGE:** 20191025

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NANOMETRICS INC
- **DATE OF NAME CHANGE:** 19920703

### Attached PDF Documents

**Attachment 1:** `onto_annualreport_2026.pdf`

_No text found in this document._