A California and Texas-based investment fund manager paid $15 million for a beachfront Gulf Stream mansion, marking the second large home sale in the small Palm Beach County town in days. Records show James N. Alexander, founder and managing partner of Jasper Ridge Partners, and Bianca M.G. Alexander of Menlo Park, California, bought the house at 1255 North Ocean Boulevard. Jasper Ridge manages more than $15.2 billion in assets, including public equity, fixed income and hedge funds, according ... [more]