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Paul Yoonku Cho, insider at Ultra Clean

Paul Yoonku Cho Insider Information

General Counsel of Ultra Clean
Paul Yoonku Cho J.D. serves as General Counsel, Corporate Secretary of the Company. Mr. Cho brings over a decade of experience in various legal disciplines, including IP and commercial litigations, joint venture projects, and commercial transaction work. Most recently, from April 2016 to October 2019, Mr. Cho held the position of General Counsel and Corporate Secretary for the North American operations of the world’s second largest memory chip supplier, SK Hynix, Inc., and held the position of Senior Counsel at its corporate headquarters from September 2014 to March 2016. Prior to SK Hynix Inc., Mr. Cho served as Senior Legal Counsel for Samsung SDI, a storage battery manufacturing company, from June 2013 to September 2014 and as Legal Counsel for LG Electronics, an electronics company, from April 2012 to May 2013. Mr. Cho holds a Bachelor of Arts in English from the University of Michigan and a Juris Doctor Degree from the University of Minnesota Law School.

What is Paul Yoonku Cho's net worth?

The estimated net worth of Paul Yoonku Cho is at least $649,925.64 as of May 11th, 2022. Mr. Cho owns 21,006 shares of Ultra Clean stock worth more than $649,926 as of May 22nd. This net worth evaluation does not reflect any other assets that Mr. Cho may own. Learn More about Paul Yoonku Cho's net worth.

How do I contact Paul Yoonku Cho?

The corporate mailing address for Mr. Cho and other Ultra Clean executives is 26462 CORPORATE AVENUE, HAYWARD CA, 94545. Ultra Clean can also be reached via phone at (510) 576-4400 and via email at [email protected] Learn More on Paul Yoonku Cho's contact information.

Has Paul Yoonku Cho been buying or selling shares of Ultra Clean?

In the last ninety days, Paul Yoonku Cho has sold $107,529.76 in Ultra Clean stock. As far as recent transactions, 0 shares of the company's stock in a transaction dated Sunday, May 22nd. Learn More on Paul Yoonku Cho's trading history.

Who are Ultra Clean's active insiders?

Ultra Clean's insider roster includes Vijayan Chinnasami (COO), Paul Cho (General Counsel), Clarence Granger (Director), David Ibnale (Director), Emily Liggett (Director), Sheri Savage (CFO), Jacqueline Seto (Director), and Joe Williams (Insider). Learn More on Ultra Clean's active insiders.

Are insiders buying or selling shares of Ultra Clean?

During the last twelve months, Ultra Clean insiders bought shares 1 times. They purchased a total of 676 shares worth more than $21,632.00. During the last twelve months, insiders at the semiconductor company sold shares 13 times. They sold a total of 71,893 shares worth more than $3,641,207.75. The most recent insider tranaction occured on May, 11th when General Counsel Paul Yoonku Cho sold 3,536 shares worth more than $107,529.76. Insiders at Ultra Clean own 2.3 % of the company. Learn More about insider trades at Ultra Clean.

Information on this page was last updated on 5/11/2022.

Paul Yoonku Cho Insider Trading History at Ultra Clean

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/11/2022Sell3,536$30.41$107,529.7621,006View SEC Filing Icon  
11/3/2021Sell9,247$55.24$510,804.28View SEC Filing Icon  
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Paul Yoonku Cho Buying and Selling Activity at Ultra Clean

This chart shows Paul Yoonku Cho's buying and selling at Ultra Clean by year and by quarter.

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Ultra Clean Company Overview

Ultra Clean logo
Ultra Clean Holdings, Inc. develops and supplies critical subsystems, components and parts, and ultra-high purity cleaning and analytical services for the semiconductor industry in the United States and internationally. The company provides ultra-clean valves, high purity connectors, industrial process connectors and valves, pneumatic actuators, manifolds and safety solutions, hoses, pressure gauges, and gas line and component heaters; chemical delivery modules that deliver gases and reactive chemicals in a liquid or gaseous form from a centralized subsystem to the reaction chamber; and gas delivery systems, such as weldments, filters, mass flow controllers, regulators, pressure transducers and valves, component heaters, and an integrated electronic and/or pneumatic control system. It also offers various industrial and automation production equipment; fluid delivery systems consist of one or more chemical delivery units, including PFA tubing, filters, flow controllers, regulators, component heaters, and an integrated electronic and/or pneumatic control system; precision robotic systems; top-plate assemblies; frame assemblies; process modules, a subsystem of semiconductor manufacturing tools that process integrated circuits onto wafers; and other high-level assemblies. In addition, the company provides tool chamber parts cleaning and coating services; micro-contamination analysis services for tool parts, wafers and depositions, chemicals, cleanroom materials, deionized water, and airborne molecular contamination; and analytical verification services for process tool chamber part cleaning. It primarily serves original equipment manufacturing customers in the semiconductor capital equipment and semiconductor integrated device manufacturing industries, as well as display, consumer, medical, energy, industrial, and research equipment industries. The company was founded in 1991 and is headquartered in Hayward, California.
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Today's Range

Now: $30.94
Low: $29.48
High: $32.29

50 Day Range

MA: $36.26
Low: $29.30
High: $45.29

2 Week Range

Now: $30.94
Low: $29.03
High: $60.84


466,326 shs

Average Volume

465,216 shs

Market Capitalization

$1.40 billion

P/E Ratio


Dividend Yield



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