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.

Based in Toronto, Barrick Gold is one of the world's largest gold miners. In 2024, the firm produced nearly 3.9 million attributable ounces of gold and about 430 million pounds of copper. At year-end 2024, Barrick had about two decades of gold reserves along with significant copper reserves. After buying Randgold in 2019 and combining its Nevada mines in a joint venture with competitor Newmont later that year, it operates mines in 19 countries in the Americas, Africa, the Middle East, and Asia. The company also has growing copper exposure. Its potential Reko Diq project in Pakistan, if developed, could double copper production by the end of the decade.

Costco operates a membership-based, no-frills retail model, predicated on offering a select product assortment in bulk quantities at bargain prices. The firm avoids maintaining costly product displays by keeping inventory on pallets and limits distribution expenses by storing its inventory at point of sale in the warehouse. Given Costco’s frugal cost structure, the firm is able to price its merchandise below competing retailers, driving high sales volume per warehouse and allowing the retailer to generate strong profits on thin margins. Costco operates over 600 warehouses in the United States and boasts over 60% market share in the domestic warehouse club industry. Internationally, Costco operates another 280 warehouses, primarily in markets such as Canada, Mexico, Japan, and the UK.

Johnson & Johnson is the world's largest and most diverse healthcare firm. It has two divisions: pharmaceutical and medical devices. These now represent all of the company's sales following the divestment of the consumer business, Kenvue, in 2023. The drug division focuses on the following therapeutic areas: immunology, oncology, neurology, pulmonary, cardiology, and metabolic diseases. Geographically, just over half of total revenue is generated in the United States.