OH Yoon Ah 4

What Happened

• Yoon Ah OH, SVP, General Counsel & Corporate Secretary of ONTO Innovation, had 530 shares withheld by the issuer on May 15, 2026 to satisfy tax withholding related to vested equity awards. The shares were valued at $271.77 each, totaling $144,038, and are reported as a disposition (code F).

Key Details

• Transaction date: 2026-05-15
• Filing date: 2026-05-18 (timely filed)
• Price per share: $271.77
• Shares withheld/disposed: 530
• Total value: $144,038
• Transaction code: F (shares withheld for tax withholding)
• Footnote: F1 — shares were withheld by the issuer to satisfy tax withholding on previously granted restricted stock units or performance stock units
• Shares owned after transaction: Not specified in the provided filing excerpt

Context

• This was not an open-market sale by the insider but an issuer withholding to cover tax obligations on vesting equity — a routine administrative disposition that doesn't necessarily signal a change in the insider's view of the company.
• Such withholdings reduce the insider's post-vesting share count but are common when RSUs/PSUs vest.