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.

Alibaba is the world’s largest online and mobile commerce company as measured by gross merchandise volume. It operates China’s online marketplaces, including Taobao (consumer-to-consumer) and Tmall (business-to-consumer). The China retail e-commerce platform is the most valuable cash flow-generating business at Alibaba. Additional revenue sources include China wholesale e-commerce, international retail and wholesale e-commerce, local consumer services, travel services, cloud computing, digital media and entertainment, Cainiao logistics services, and other businesses.

Alibaba Group Holding Ltd. provides Chinese and international e-commerce platforms, logistics, and ancillary services. The company operates in four segments (Alibaba E-commerce Group, AI Cloud & Compute Services, AI Labs &Applications, and All Others). Key marketplaces include Taobao, a consumer marketplace; Tmall, a third-party platform for brands and retailers; Alibaba.com and 1688.com, online wholesale marketplaces; Alipay, for online payments; and Lazada, for Southeast Asia e-commerce.

Palantir develops and provides software that enables customers from government agencies to commercial enterprises to integrate data for decision-making and operations at scale. The company initially provided its software to the U.S. intelligence services before broadening its customer base. Palantir generates 54% of its revenue from its government segment and 46% from its commercial segment. Some 26% of revenue is generated outside the U.S. Palantir's class A shares trade publicly under the symbol PLTR. Palantir's super-voting class B and class F shares, held by insiders and founders, do not trade publicly. The company is effectively controlled by founders Alexander Karp, Stephen Cohen, and Peter Thiel, though the super-voting class F shares that represent a 49.99% voting interest. Palantir was founded in 2003 and went public at $10 per share on September 30, 2020.