William C. Steere Jr.

William C. Steere Jr. (born June 17, 1936) is a former chief executive officer of Pfizer. He is also a member of the board of directors of the New York Botanical Garden. While Steere was CEO of Pfizer, the company acquired Warner-Lambert and brought to market blockbuster drugs including Viagra, Zoloft, and Zithromax. His decision to triple research expenditures in 8 years, to $2.2 billion, was cited as a reason for the prosperity of Pfizer during his tenure, a period in which sales of the company doubled.