# EDGAR Filing Document

**Accession Number:** 0000704532
**File Stem:** 0001193125-25-300473
**Filing Date:** 2025-11
**Character Count:** 2785
**Document Hash:** e1eff8e6827f4fd25477a9115d0a861d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-300473.hdr.sgml**: 20251126

**ACCESSION NUMBER**: 0001193125-25-300473

**CONFORMED SUBMISSION TYPE**: RW

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251126

**DATE AS OF CHANGE**: 20251126

**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:** RW

**SEC ACT:**
- **SEC FILE NUMBER:** 333-291695
- **FILM NUMBER:** 251529953

**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

Re: Onto Innovation Inc.

Application for Withdrawal of Registration Statement on Form S-3

File No. 333-291695

November 26, 2025

SECURITIES AND EXCHANGE COMMISSION

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Ladies and Gentlemen:

Onto Innovation Inc., a Delaware corporation (the "Company"), hereby requests that its Registration Statement on Form S-3 (File No. 333-291695), originally filed with the Securities and Exchange Commission (the "Commission") on November 21, 2025 (the "Registration Statement"), together with all exhibits thereto, be withdrawn, with such withdrawal to be effective as of the date hereof pursuant to Rule 477 under the Securities Act of 1933, as amended.

The Company is requesting withdrawal of the Registration Statement because of a filing error relating to the EDGAR coding. The Registration Statement was incorrectly coded and filed as an "S-3," whereas the Company intended the Registration Statement to be filed with the Commission with the code "S-3ASR." The Company has refiled the Registration Statement with the code "S-3ASR." The Company confirms that no securities were sold pursuant to the Registration Statement.

If you have any questions regarding the foregoing application for withdrawal, please contact Jonathan Ozner of Simpson Thacher & Bartlett LLP at (212) 455-2632 or jozner@stblaw.com.

Very truly yours,

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| | |
|:---|:---|
| ONTO INNOVATION INC. | ONTO INNOVATION INC. |
| /s/ Yoon Ah Oh | /s/ Yoon Ah Oh |
| By: | Yoon Ah Oh |
| Title: | Senior Vice President, General Counsel and Corporate Secretary |

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