Tiff Advisory Services Inc. trimmed its position in shares of Amazon.com, Inc. (NASDAQ:AMZN) by 32.0% during the 1st quarter, HoldingsChannel.com reports. The firm owned 108,585 shares of the e-commerce giant’s stock after selling 51,127 shares during the quarter. Amazon.com makes up about 4.7% of Tiff Advisory Services Inc.’s portfolio, making the stock its 7th biggest […]