OH Yoon Ah 4

What Happened

• Yoon Ah Oh, SVP, General Counsel & Corporate Secretary of Onto Innovation (ONTO), had performance stock units (PSUs) settle on Feb 14, 2026. The filing shows derivative conversions totaling 5,061 shares (3,084 and 1,977 share events). To satisfy tax withholding obligations, the issuer withheld 1,595 shares (1,094 + 501) at a per‑share value of $217.23, producing cash of $346,482. Net shares delivered to the reporting person after withholding were 3,466.
• This was the scheduled PSU settlement (an award vesting), not an open‑market sale or purchase.

Key Details

• Transaction date: February 14, 2026; Form 4 filed February 18, 2026 (appears timely).
• Conversion/settlement: 5,061 shares via derivative conversion ("M" code).
• Tax withholding: 1,595 shares withheld ("F" code) at $217.23 per share; total withheld ≈ $346,482 (lines show $237,650 and $108,832).
• Net shares retained: 3,466 (5,061 converted − 1,595 withheld).
• Footnotes: F1 — these shares represent PSUs granted 2/14/2023 that vested at 156% of target. F2 — shares were withheld by the issuer to satisfy tax withholding on the vested awards.
• Shares owned after the transaction: not reported in the provided data.

Context

• This was a scheduled award settlement (vested PSUs), not a market sale; withholding of shares for taxes is a routine administrative step and does not necessarily signal insider buying or selling interest.
• Derivative/“M” codes here reflect the conversion/settlement of equity awards into common shares. The “F” code denotes shares withheld to cover tax obligations.