Brian E. Harding

Brian E. Harding: Chief Accounting Officer at Ultra Clean. What Brian E. Harding 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)

Brian E. Harding holds 33,581 Ultra Clean shares (0.07% of the company), worth about $2.2M at the last price, according to the Form 4 of Jul 2, 2026.

• Shares held: 33,581 (0.07%), $2.2M — Held in their own name.

Declarations

• Ultra Clean (UCTT) — Form 4 of Jul 2, 2026 (Chief Accounting Officer): open-market sale of 440 at $126.92; open-market sale of 2,194 at $128.37; 33,581 shares after 0000950103-26-010375
• Ultra Clean (UCTT) — Form 4 of Jun 26, 2026 (Chief Accounting Officer): grant or award of 9,363; 37,418 shares after 0000950103-26-009883
• Ultra Clean (UCTT) — Form 4 of Jun 4, 2026 (Chief Accounting Officer): open-market sale of 196 at $85.86; open-market sale of 1,176 at $87.72; 28,055 shares after 0000950103-26-008671
• Ultra Clean (UCTT) — Form 4 of May 22, 2026 (Chief Accounting Officer): grant or award of 8,412; 45,043 shares after 0000950103-26-007849
• Ultra Clean (UCTT) — Form 4 of May 5, 2026 (Chief Accounting Officer): open-market sale of 4,000 at $80.00; 36,631 shares after 0000950103-26-006972
• Ultra Clean (UCTT) — Form 4 of Apr 30, 2026 (Chief Accounting Officer): shares withheld for tax of 1,957 at $78.15; shares withheld for tax of 2,640 at $78.15; 40,631 shares after 0000950103-26-006813
• Ultra Clean (UCTT) — Form 4 of Jun 30, 2025 (Chief Accounting Officer): shares withheld for tax of 4,198 at $22.57; 48,237 shares after 0000950103-25-008427
• Ultra Clean (UCTT) — Form 4 of Apr 30, 2025 (Chief Accounting Officer): shares withheld for tax of 1,956 at $18.71; shares withheld for tax of 2,640 at $18.71; 51,706 shares after 0000950103-25-005716
• Ultra Clean (UCTT) — Form 4 of Apr 25, 2025 (Chief Accounting Officer): grant or award of 18,090; 56,302 shares after 0000950103-25-005454
• Ultra Clean (UCTT) — Form 4 of Mar 7, 2025 (Chief Accounting Officer): open-market purchase of 4,000 at $24.00; 38,212 shares after 0000950103-25-003279
• Ultra Clean (UCTT) — Form 4 of Jun 30, 2024 (Chief Accounting Officer): shares withheld for tax of 3,796 at $49.00; 33,619 shares after 0000950103-24-009603

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.

All holders · Who owns each AI company · All tracked companies · The AI market