Costco has made significant changes to its Kirkland Signature brand, a key driver of customer loyalty. The company is refining its sourcing, prices, and management of its private-label products. This shift includes greater control over the supply chain and more products sourced domestically. The changes could benefit members due to competitive pricing and increased supply chain control. Despite a 9.1% increase in net sales in the most recent quarter, Costco knows consumers are still sensitive to price changes. Additionally, the company's adaptability to the Kirkland brand is likely to increase member loyalty.