The Vickers Top Buyers & Sellers is a daily report that identifies the five companies the largest insider purchase transactions based on the dollar value of the transactions as well as the five companies the largest insider sales transactions based on the dollar value of the transactions.

Netherlands-based ASML Holdings N.V. provides advanced semiconductor capital equipment solutions. ASML manufactures ultraviolet lithography systems critical to the production of integrated circuits. The company, based in Europe's top technology hub near Eindhoven, has operations in Europe, the Americas, and Asia, and employs 33,000 people. The company supplies both primary semiconductor companies such as Intel and Samsung as well as merchant foundry companies such as Taiwan Semiconductor. Together with its partners, ASML is driving the development of more affordable, more powerful, and more energy-efficient chips and devices.

Based in Chicago, United Airlines Holdings is a global airline that transports passengers and freight through both mainline and regional operations. With a market cap of about $13.6 billion, United Airlines is generally regarded as a large-cap value stock.

United Airlines is a major U.S. network carrier with hubs in San Francisco, Chicago, Houston, Denver, Los Angeles, New York/Newark, and Washington, D.C. United operates a hub-and-spoke system that is more focused on international and long-haul travel than its large U.S. peers.