Susan D. Lynch - 21 Aug 2026 Form 4 Insider Report for ONTO INNOVATION INC. (ONTO)

Reporting relationship: Director
Issuer ticker: ONTO
Reported as of: 21 Aug 2026
Net transaction value: -$302,300
SEC form: 4
Accepted by SEC: 25 Aug 2026, 17:25:55 UTC
Prior SEC filing: 04 Jun 2026
Source filing: View source filing
Reporting owner signature: By: Eric French For: Susan Lynch

Key filing fact

Susan D. Lynch filed Form 4 for ONTO INNOVATION INC. (ONTO) on 25 Aug 2026.

Key facts

This page summarizes Susan D. Lynch's Form 4 filing for ONTO INNOVATION INC. (ONTO).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 25 Aug 2026, 17:25.

Change

Previous filing in this sequence was filed on 04 Jun 2026.
Current net transaction value: -$302,300.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001784973 Primary reporting owner

Lynch Susan D

Relationship: Director
Address: C/O ONTO INNOVATION INC., 16 JONSPIN ROAD, WILMINGTON
Signature: By: Eric French For: Susan Lynch
Signature date: 25 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ONTO transaction

Common Stock

Sale

Transaction value: $302,300
Shares: -1,000
Change %: -27%
Price: $302.30
Shares after: 2,684
Date: 21 Aug 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 1 footnote

Footnote F1

The stock sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 22, 2026.