Impinj, Inc. (NASDAQ:PI – Get Free Report) shares rose 4.2% on Wednesday . The stock traded as high as $176.46 and last traded at$175.6350. Approximately 479,217 shares were traded during mid-day trading, a decline of 21% from the average daily volume of 605,618 shares. The stock had previously closed at 168.60. Get Impinj alerts: Wall Street Analysts Forecast GrowthSeveral equities analysts recently commented on the stock. Needham & Company LLC upped their target price on shares of Impinj from 195.00 to ...