What is p. gardner howe iii?

As an AI language model, I don't have access to up-to-date personal information on individuals. However, based on available information, P. Gardner Howe III is a businessman and philanthropist based in Boston, Massachusetts. He is the founder and current CEO of Howe & Rusling, a wealth management firm established in 1978. Howe is also known for his philanthropic work, primarily in the areas of healthcare and education, and has served in various organizations such as the Boston Medical Center and the Dana-Farber Cancer Institute.