Samuel Williams Johnson

Samuel Williams Johnson: SVP, Services Business at Ultra Clean. What Samuel Williams Johnson 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.

Ultra Clean (UCTT)

Samuel Williams Johnson holds 16,436 Ultra Clean shares (0.04% of the company), worth about $846,782.72 at the last price, according to the Form 4 of May 22, 2026.

• Shares held: 16,436 (0.04%), $846,782.72 — Held in their own name.

Declarations

• Ultra Clean (UCTT) — Form 4 of May 22, 2026 (SVP, Services Business): grant or award of 5,567; 16,436 shares after 0000950103-26-007853
• Ultra Clean (UCTT) — Form 4 of Mar 31, 2026 (SVP, Services Business): shares withheld for tax of 1,476 at $62.18; 10,869 shares after 0000950103-26-005311
• Ultra Clean (UCTT) — Form 3 of Aug 15, 2025 (SVP, Services Business); 12,345 shares after 0000950103-25-010679

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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