UCTT Stock: Insider Activity, Filings & Research
Ultra Clean Holdings, Inc. (UCTT) — Drillr’s hub for UCTT insider activity, SEC filings, earnings signals and AI research. Over the trailing 3 months, UCTT insiders filed 0 open-market buys and 13 sales (SEC Form 4). 1 published research article, SEC filings and AI analysis on Drillr.
UCTT insider trading activity (SEC Form 4)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 27, 2026 | Solomon Joannedirector | Grant | 2,575 | — |
| May 27, 2026 | Seto Jacqueline A.director | Grant | 2,575 | — |
| May 27, 2026 | LIGGETT EMILY Mdirector | Sell | 8,198 | $92.18 |
| May 27, 2026 | IBNALE DAVID Tdirector | Grant | 2,575 | — |
| May 27, 2026 | Cook Christopher Sofficer: President, Products Division | Grant | 13,196 | — |
| May 27, 2026 | Cho Paul Yoonkuofficer: General Counsel and Secretary | Grant | 8,041 | — |
| May 27, 2026 | McKibben Jeffrey L.officer: Chief Information Officer | Grant | 5,896 | — |
| May 27, 2026 | Savage Sheriofficer: CFO | Grant | 26,392 | — |
| May 27, 2026 | Johnson Samuel Williamsofficer: SVP, Services Business | Grant | 5,567 | — |
| May 27, 2026 | Palfrey Jamie J.officer: SVP, Global Human Resources | Grant | 9,897 | — |
| May 27, 2026 | Xiao Jinsongofficer: Chief Executive Officer | Grant | 31,175 | — |
| May 27, 2026 | EDMAN THOMAS Tdirector | Grant | 2,575 | — |
| May 27, 2026 | LIGGETT EMILY Mdirector | Grant | 2,575 | — |
| May 27, 2026 | Wunar Robert Anthonyofficer: Chief Operating Officer | Grant | 10,732 | — |
| May 27, 2026 | HARDING BRIAN Eofficer: Chief Accounting Officer | Grant | 8,412 | — |
Source: UCTT SEC Form 4 filings, latest May 27, 2026. For informational purposes only — not investment advice.
Ultra Clean Holdings, Inc. company profile
Overview
Ultra Clean Holdings, Inc. (NASDAQ:UCTT) is a California-based company founded in 1991 that serves as a critical supplier to the global semiconductor manufacturing industry. Originally established as a provider of ultra-high purity cleaning services, the company has evolved into a comprehensive solutions provider offering both products and services essential to semiconductor fabrication. Ultra Clean has grown through strategic acquisitions and organic expansion to become a key player in the semiconductor capital equipment supply chain, with manufacturing facilities across the United States, Asia, and Europe. The company went public in 2004 and has since established itself as a trusted partner to major semiconductor equipment manufacturers and chip producers worldwide.
Business
Ultra Clean Holdings operates in the semiconductor manufacturing ecosystem, providing critical subsystems, components, and specialized services that enable the production of computer chips. The semiconductor industry involves the fabrication of integrated circuits on silicon wafers through highly complex processes requiring extreme precision and cleanliness standards. Ultra Clean serves as an essential supplier in this value chain, offering products and services that must meet ultra-high purity requirements to avoid contaminating the chip manufacturing process. The company operates through two primary business segments. The Products segment generates approximately 85-90% of total revenue and manufactures critical subsystems and components used in semiconductor fabrication equipment. These include gas delivery systems that transport ultra-pure gases to reaction chambers, chemical delivery modules that handle reactive chemicals in liquid or gaseous form, fluid delivery systems with specialized tubing and flow controllers, precision valves and connectors, pneumatic actuators, and complex assemblies like process modules and frame assemblies. The products must meet stringent purity standards since even microscopic contamination can ruin semiconductor wafers worth thousands of dollars. The Services segment contributes roughly 10-15% of revenue and provides specialized cleaning, coating, and analytical services. This includes tool chamber parts cleaning using proprietary processes to remove contaminants, micro-contamination analysis to detect particles and molecular contamination in manufacturing tools and materials, and analytical verification services to ensure cleaning processes meet required specifications. These services are critical because semiconductor manufacturing tools require periodic maintenance and cleaning to maintain production yields, and any contamination can cause expensive production failures.
Revenue model
Ultra Clean generates revenue primarily through direct product sales to original equipment manufacturers (OEMs) in the semiconductor capital equipment industry, as well as service fees for cleaning and analytical services. The company's customers include major semiconductor equipment manufacturers like Applied Materials, Lam Research, and Tokyo Electron, who integrate Ultra Clean's subsystems into their fabrication tools. Additionally, Ultra Clean serves integrated device manufacturers (IDMs) like Intel and contract manufacturers like TSMC who operate semiconductor fabrication facilities. The business model benefits from several favorable dynamics. The semiconductor industry's complexity creates high switching costs, as Ultra Clean's products must meet exact specifications and undergo lengthy qualification processes that can take months or years. The company's vertically integrated manufacturing approach allows it to control quality and costs while offering comprehensive solutions. Geographic diversification across manufacturing sites in the United States, Malaysia, and other locations provides cost advantages and supply chain resilience. However, the business faces cyclical headwinds tied to semiconductor capital equipment spending, which fluctuates significantly based on chip demand cycles, technological transitions, and macroeconomic conditions. Margin pressure can arise from commodity price inflation, labor cost increases, and competitive pricing dynamics. Geopolitical tensions, particularly between the United States and China, create regulatory uncertainties that can impact customer relationships and market access. The company's exposure to a concentrated customer base of large equipment manufacturers also creates revenue concentration risk, though this is partially offset by the critical nature of Ultra Clean's products in the manufacturing process.
Competitive moat
Ultra Clean's competitive moat is moderately strong but not insurmountable, built primarily on specialized technical expertise and customer relationships rather than structural advantages. The company's strongest defensive position comes from its deep integration into customers' product development cycles and the high switching costs associated with semiconductor manufacturing. Once Ultra Clean's subsystems are qualified and integrated into a customer's equipment design, replacing them requires extensive re-engineering, testing, and re-qualification processes that can take 12-18 months and cost millions of dollars. The company's technical expertise in ultra-high purity manufacturing processes creates another layer of protection. Semiconductor fabrication requires contamination levels measured in parts per billion, demanding specialized knowledge in materials science, precision manufacturing, and cleanroom operations that takes years to develop. Ultra Clean's vertically integrated approach, combining design, manufacturing, and services, makes it difficult for customers to easily substitute suppliers. However, the moat faces several vulnerabilities. The semiconductor equipment industry is dominated by a small number of large OEMs who possess significant bargaining power and could potentially backward integrate or develop alternative suppliers if motivated by cost or strategic considerations. The company's products, while technically sophisticated, are not patent-protected in ways that create absolute barriers to entry. Well-capitalized competitors or new entrants with sufficient investment could potentially replicate Ultra Clean's capabilities over time. Additionally, the cyclical nature of the semiconductor industry means that during downturns, customers become more price-sensitive and willing to consider alternative suppliers, potentially eroding relationship-based advantages.
Risks & safety
Ultra Clean demonstrates a solid margin of safety with strong liquidity but faces earnings volatility due to industry cyclicality. **Cash Position and Solvency:** - Strong cash position of $317.6 million with minimal debt burden - Current ratio of 3.0x indicating strong short-term liquidity - Debt-to-equity ratio of 0.74x, manageable but elevated from recent acquisitions - Positive free cash flow generation of $15.8 million in Q1 2025, though volatile quarter-to-quarter **Valuation Metrics:** - EV/EBITDA of 9.8x appears reasonable for a cyclical industrial company - Price-to-book ratio of 1.14x suggests trading near tangible book value - Graham net-net ratio of -6.3x indicates the stock doesn't qualify as a deep value play - Recent earnings volatility makes P/E ratios less meaningful **Other Considerations:** - Revenue concentration risk with large OEM customers - Cyclical industry exposure creates earnings unpredictability - Geographic diversification provides some operational resilience - Strong balance sheet provides cushion during industry downturns
Recent development
Over the past few years, Ultra Clean has pursued several strategic initiatives to strengthen its market position and operational efficiency. The company has significantly expanded its global manufacturing footprint, particularly in Malaysia, where production capacity has doubled to take advantage of lower labor costs and improved supply chain positioning. This geographic diversification strategy has helped reduce manufacturing costs while maintaining proximity to key Asian customers. A major strategic focus has been expanding the company's presence in China's domestic semiconductor market. Revenue from Chinese customers has grown substantially from historical levels of $10-20 million quarterly to approximately $40-55 million per quarter by 2024, representing a significant new revenue stream. Ultra Clean has implemented a "China for China" manufacturing strategy, establishing local production and engineering capabilities to serve domestic Chinese semiconductor manufacturers while navigating geopolitical trade restrictions. The company has also pursued targeted acquisitions to expand its technological capabilities and market reach. The acquisition of HIS Innovations Group enhanced Ultra Clean's presence in the subfab market, while other acquisitions have broadened the company's lithography portfolio and advanced packaging capabilities. These acquisitions align with the company's strategy to capture a larger share of the semiconductor manufacturing value chain, particularly in high-growth areas like artificial intelligence chip production and advanced packaging technologies. Operationally, Ultra Clean has implemented significant cost optimization initiatives, including facility consolidations in Arizona and the Czech Republic, workforce adjustments to match demand cycles, and investments in automation and manufacturing efficiency. The company has also been positioning itself to benefit from the artificial intelligence boom, expanding capabilities in areas like high-bandwidth memory, chemical mechanical planarization, and advanced deposition processes that are critical for AI chip manufacturing.
UCTT company profile · for informational purposes only — not investment advice.
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