# EDGAR Filing Document

**Accession Number:** 0002074793
**File Stem:** 0002022859-25-000074
**Filing Date:** 2025-6
**Character Count:** 8504
**Document Hash:** c4832c54f386e49917cbe6a1454e6095
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002022859-25-000074.hdr.sgml**: 20250630

**ACCESSION NUMBER**: 0002022859-25-000074

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250616

**FILED AS OF DATE**: 20250630

**DATE AS OF CHANGE**: 20250630

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Chen Shirley
- **CENTRAL INDEX KEY:** 0002074793

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39110
- **FILM NUMBER:** 251092360

**MAIL ADDRESS:**
- **STREET 1:** C/O ONTO INNOVATION INC.
- **STREET 2:** 16 JONSPIN ROAD
- **CITY:** WILMINGTON
- **STATE:** MA
- **ZIP:** 01887
**ISSUER**: 

**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

**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

## Ex-24

```

POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes
 and appoints each of Brian Roberts, Yoon Ah Oh, Eric French,
Erik Bello, and Debora Tomlinson, signing singly, the undersigned's
 true and lawful attorney-in-fact to:

(1)	prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the United States Securities
and Exchange Commission (the "SEC") a Form ID, including amendments
thereto, or any other documents necessary or appropriate to obtain
codes and passwords enabling the undersigned to make electronic filings
 with the SEC of reports required by Section 16(a) of the Securities Exchange
 Act of 1934, as amended (the "Exchange Act"), Rule 144 under the Securities
Act of 1933, as amended ("Rule 144"), or any rule or regulation of the SEC
 via the Electronic Data Gathering and Retrieval ("EDGAR") system and
legally bind the undersigned for purpose of the Form ID or such other
documents;

(2)	act as an account administrator for the undersigned's EDGAR account,
including (i) appointing, removing and replacing account administrators,
technical administrators account users, and delegated entities;
(ii) maintaining the security of the undersigned's EDGAR account, including
modification of access codes; (iii) maintaining, modifying and certifying the
 accuracy of information on the undersigned's EDGAR account dashboard; and
(iv) taking any other actions contemplated by Rule 10 of Regulation S-T;

(3)	prepare and execute, for and on behalf of the undersigned, in the
undersigned's capacity as Senior Vice President of Customer Success of Onto
 Innovation Inc.(the "Company"), and file with the SEC, Forms 3, 4, and 5,
and Forms 144, each including amendments thereto, in accordance with Section
 16(a) of the Exchange Act and the rules thereunder and Rule 144, respectively;

( 4)	do and perform any and all acts for and on behalf of the undersigned
 which may be necessary or desirable to complete and execute any such Form
 ID, including amendments thereto, or Form 3, 4, or 5, or Form 144, and timely
 file such form with the SEC and any stock exchange or similar authority; and

(5)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
 in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve
in the discretion of such attorney-in-fact.
The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
 necessary, or proper to be done in the exercise of any of the rights and
 powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to
be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys in fact,
in serving in such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until
 the undersigned is no longer required to file Forms 3, 4, and 5, and
Form 144, with respect to the undersigned's holdings of and transactions
 in securities issued by the Company, unless earlier revoked by the
 undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
 executed as June 16, 2025.

Signature:	/s/ Shirley Chen
Print Name: 	Shirley Chen

```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Chen Shirley<br><sub>(Last) (First) (Middle)</sub><br>C/O ONTO INNOVATION INC.<br>16 JONSPIN ROAD<br><sub>(Street)</sub><br>WILMINGTON, MA 01887<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>ONTO INNOVATION INC. [ ONTO ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-06-16 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_SVP Customer Success_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
Exhibit List:
    Exhibit 24 - Power of Attorney

**Signature:** By: Eric French For: Shirley Chen  
**Date:** 2025-06-30

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**