EXHIBIT 10.40Technology Purchase and Sale Agreement • November 12th, 1997 • Ariad Pharmaceuticals Inc • Biological products, (no disgnostic substances) • MassachusettsContract TypeTechnology Purchase and Sale AgreementFiledNovember 12th, 1997CompanyAriad Pharmaceuticals IncIndustryBiological products, (no disgnostic substances)JurisdictionMassachusetts