Cardinal Health's origin story begins with a 26-year-old Harvard Business School graduate named Robert D. Walter who, in 1971, borrowed $1.3 million to acquire the ailing food-distribution division of Consolidated Foods in a leveraged buyout. Walter, born July 13, 1945, in Columbus, Ohio, had graduated summa cum laude from Ohio State University in 1967 with a degree in mechanical engineering and completed his MBA at Harvard in 1970. His brief stint as an engineer at North American Rockwell (later Rockwell International) had been formative in a negative way: Walter loathed the company's bureaucratic culture, rigid seniority system, and risk-averse mindset. He resolved never to work for an oversized company again. Walter named his new company Cardinal Foods, after Ohio's state bird, and set about building a regional food distribution business. By 1980, he had increased sales tenfold, but he had also reached a strategic dead end. The U.S. food distribution industry had consolidated into the hands of a few large companies—too large for Cardinal to acquire or compete with for market share. Walter attempted to diversify within food by starting a supermarket franchise called Mr. Moneysworth, but the venture failed, an experience Walter later characterized as his most humbling business failure. The pivot that would define Cardinal Health's future came in the late 1970s. Walter observed that the pharmaceutical distribution industry was growing rapidly as hospitals and retail druggists increased their orders, while the grocery business stagnated. In 1979, he acquired Bailey Drug Co., a pharmaceutical distributor in Zanesville, Ohio, and renamed the company Cardinal Distribution Inc. The cardinal theme, inspired by Ohio's state bird, would carry through all subsequent ventures. The pharmaceutical distribution business proved to be exactly the opportunity Walter had been seeking. Throughout the 1980s, he executed a rapid series of acquisitions: Ellicott Drug in Buffalo, New York (1984); James W. Daly, Inc. in Peabody, Massachusetts (1986); and John L. Thompson Sons & Co. in Troy, New York (1986). Walter's acquisition strategy was distinctive: he sought companies with proven track records and deep local customer relationships, then allowed them to continue operating largely autonomously under the Cardinal umbrella. This decentralized approach preserved the acquired companies' customer relationships and institutional knowledge while providing them with Cardinal's capital and infrastructure. Walter also embraced technology early. In the late 1980s, as computers were just beginning to transform business operations, Cardinal developed its own software to manage inventory, sales, and other critical functions. This system reduced operating costs and improved customer service, allowing distributors to fulfill orders within one day—a significant competitive advantage in an era when many competitors still relied on manual processes. In 1983, Walter took Cardinal Distribution public on the NASDAQ at $1.03 per share, providing capital for continued expansion. By 1988, the company had grown sufficiently that Walter sold the remaining food operations to Roundy's Inc., freeing Cardinal to focus entirely on pharmaceutical distribution. By 1991, revenues exceeded $1 billion, and by 1994, Cardinal was the third-largest pharmaceutical wholesaler in the United States. The company's name was changed to Cardinal Health in 1994 to reflect its expanding mission beyond pure distribution. The 1990s marked a period of strategic diversification. In 1995, Cardinal acquired Medicine Shoppe International, the country's largest franchise of retail pharmacies. In 1996, the company acquired Pyxis Corp., a manufacturer of automated supply and pharmaceutical dispensing systems for hospitals. In 1997, Cardinal acquired Owen Healthcare, a provider of outsourced management services for hospital pharmacies and materials management departments. In 1998, the company acquired R.P. Scherer Corp., a developer of drug delivery systems, and formed Cardinal MarketFORCE to recruit sales and marketing teams for pharmaceutical manufacturers. In 1999, Cardinal became a major player in the medical-surgical market by acquiring Allegiance Healthcare Corp. for approximately $4.4 billion. This acquisition added medical and surgical products manufacturing and distribution capabilities that would become the foundation of the Global Medical Products and Distribution segment. The 2000s continued the acquisition-driven growth. In 2001, Cardinal acquired Bindley Western Industries, a pharmaceutical distributor. In 2006, the company acquired ParMed Pharmaceutical, adding generic pharmaceutical distribution capabilities. In 2007, Cardinal acquired VIASYS Healthcare, adding respiratory and neurological diagnostic products. In 2010, the company acquired Healthcare Solutions Holding, expanding its specialty pharmaceutical services. The most significant recent strategic development was the 2014 establishment of Red Oak Sourcing, a 50/50 joint venture with CVS Caremark (now CVS Health) to create the largest generic pharmaceutical sourcing entity in the United States. Under the agreement, Cardinal Health makes quarterly payments of $25.6 million to CVS over the 10-year initial term, with an estimated after-tax present value of $435 million. The joint venture does not own physical assets or inventory but negotiates generic supply contracts on behalf of both companies. This partnership has been critical to Cardinal Health's competitive position in generic pharmaceuticals. The 2010s also brought challenges. In 2013, Cardinal Health lost a major contract with Walgreens, which shifted its pharmaceutical distribution to AmerisourceBergen. The loss of Walgreens revenue, while partially offset by new business, demonstrated the customer concentration risk that would resurface with the OptumRx loss a decade later. The company also faced significant opioid litigation, ultimately reaching settlements as part of broader industry resolutions. In 2017, Cardinal Health acquired the Patient Recovery business from Medtronic for $6.1 billion, expanding its medical products portfolio. In 2021, the company acquired Hellman & Friedman for its remaining interest in naviHealth, a post-acute care management company. In 2024, the company faced its most significant customer loss when OptumRx contracts were not renewed. Despite this challenge, Cardinal Health has continued to execute its strategy, raising guidance and pursuing acquisitions to diversify into higher-margin healthcare services.