Gary Millerchip

Gary Millerchip serves as Chief Financial Officer of Costco Wholesale Corporation, one of the world's largest retailers, where he oversees the company's financial strategy including its expanding retail media and advertising revenue initiatives. As retail media networks have become a dominant force in AdTech, Costco's first-party membership data and high-income consumer base have made it an increasingly attractive platform for advertisers, placing Millerchip in a position of growing relevance to the advertising technology ecosystem. Prior to joining Costco, Millerchip spent a significant portion of his career at Kroger, where he served as Chief Financial Officer. During his tenure at Kroger, he played a key role in the development and scaling of Kroger Precision Marketing, the retailer's retail media network that leveraged its extensive loyalty card data to offer targeted advertising solutions to CPG brands and other advertisers. This work positioned Kroger as a leader in the retail media space and helped establish the financial and strategic frameworks that many grocery retailers have since emulated. Millerchip's background is rooted in retail finance and corporate strategy rather than traditional AdTech, but his influence on the retail media sector — particularly through his Kroger years — has been substantial. His move to Costco signals continued industry interest in how membership-based retailers with rich first-party data can monetize their audiences in a privacy-conscious, post-cookie advertising landscape.

Last updated Jun 11, 2026 by ATDb automated enrichment