GREENWOOD VILLAGE, Colo.--(BUSINESS WIRE)--Keating Capital, Inc. (www.KeatingCapital.com), a pre-IPO investment fund, announced that on August 25, 2011, it made a $4 million investment in the $13 million Series D Convertible Preferred Stock round of Metabolon, Inc. (www.Metabolon.com) (“Metabolon”). Other investors in the Series D round include existing investors Sevin Rosen Funds, Aurora Funds, Harris & Harris Group, Syngenta Ventures, Fletcher Spaght and Fulcrum Financial Partners.