Stephen S. Schwartz

Stephen S. Schwartz: Director at Onto Innovation. What Stephen S. Schwartz holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

Onto Innovation (ONTO)

Stephen S. Schwartz holds 3,536 Onto Innovation shares (0.01% of the company), worth about $1.0M at the last price, according to the Form 4 of May 20, 2026.

• Shares held: 3,536 (0.01%), $1.0M — Held in their own name.

Declarations

• Onto Innovation (ONTO) — Form 4 of May 20, 2026: grant or award of 761; 3,536 shares after 0001247436-26-000003
• Onto Innovation (ONTO) — Form 4 of May 21, 2025: grant or award of 2,114; 2,775 shares after 0002022859-25-000061
• Onto Innovation (ONTO) — Form 4 of Aug 20, 2024: grant or award of 661; 661 shares after 0002022859-24-000030
• Onto Innovation (ONTO) — Form 3 of Jul 16, 2024; 0 shares after 0002022859-24-000028

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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