Onto Innovation INC. Stock: price and directors' dealings · United States · SEC (Form 4)

About Onto Innovation INC.

Onto Innovation Inc. (ticker ONTO) is a U.S.-based semiconductor equipment and process-control company listed on the NYSE/NASDAQ in the United States. For investors, the business sits in a specialized, high-value niche: metrology, inspection, lithography, and data-analysis tools used by semiconductor manufacturers and advanced packaging players to improve yield, control process variation, and reduce manufacturing costs. Onto positions itself as an integrated solutions provider spanning bare silicon wafers through wafer fabs to final back-end packaging, with particular relevance in advanced logic, memory, panel-level packaging, and AI-enabling device architectures. ([ontoinnovation.com](https://ontoinnovation.com/company/about?utm_source=openai)) The company in its current form was created in 2019 through the merger of Rudolph Technologies and Nanometrics Incorporated, although its operating heritage goes back much further; market sources cite a founding date of 1940. Onto Innovation is headquartered in Wilmington, Massachusetts. That long operating history, combined with a focused product portfolio, has helped the company establish a strong reputation as a mission-critical supplier to semiconductor fabs, where small gains in process control can translate into meaningful improvements in yield and cost efficiency. ([stockanalysis.com](https://stockanalysis.com/stocks/onto/company/?utm_source=openai)) Onto’s main business lines include automated and integrated metrology systems, silicon wafer and macro-defect inspection, automated defect classification, pattern analysis, yield analysis software, opaque film metrology, and lithography systems for advanced packaging applications. The company also markets process-control and yield-management software, which complements its hardware platform and deepens customer integration. This mix gives Onto exposure to both recurring software-driven workflows and capital equipment spending, while keeping the company focused on a relatively defensible segment of the semiconductor supply chain rather than broad-based commodity hardware. ([ontoinnovation.com](https://ontoinnovation.com/company?utm_source=openai)) Geographically, Onto Innovation serves customers in the United States and across Asia and Europe, with meaningful commercial exposure in Taiwan, South Korea, Japan, China, and Southeast Asia. That footprint matches the global nature of semiconductor manufacturing, where leading-edge production and advanced packaging are concentrated across a few strategic regions. As a result, Onto’s revenue base is tied to capex cycles at foundries, memory makers, outsourced semiconductor assembly and test providers, and specialty device manufacturers. ([stockanalysis.com](https://stockanalysis.com/stocks/onto/?utm_source=openai)) Recent developments point to continued strategic emphasis on advanced nodes and advanced packaging. In 2025, the company highlighted progress across its product platforms, including increased traction in advanced-node markets and growth in 3D interconnect metrology and next-generation inspection tools. Earlier, Onto announced a U.S. Applications Center of Excellence in Wilmington dedicated to panel-level packaging, featuring hands-on access to its Firefly inspection system, JetStep lithography platform, and Discover software family. For French-speaking investors, the key takeaway is clear: Onto is a specialized U.S. semiconductor capital-equipment company with attractive structural exposure to AI-driven manufacturing demand, but it remains cyclical and dependent on global semiconductor investment trends. ([sec.gov](https://www.sec.gov/Archives/edgar/data/704532/000095017025105068/onto-ex99_1.htm?utm_source=openai))