Wall Street Zen upgraded shares of Impinj (NASDAQ:PI – Free Report) from a hold rating to a buy rating in a report released on Saturday morning. Finally, Zacks Research upgraded Impinj from a “strong sell” rating to a “hold” rating in a report on Friday, May 1st. Over the last three months, insiders sold 265,124 shares of company stock valued at $36,565,887. Western Wealth Management LLC purchased a new position in shares of Impinj during the first quarter valued at approximately $28,000. Finally, Caitong International Asset Management Co. Ltd purchased a new position in Impinj during the 4th quarter valued at $60,000.