Mizuho upgraded shares of Pinterest (NYSE:PINS – Free Report) to a strong-buy rating in a report released on Monday,Zacks.com reports. Wall Street Zen upgraded shares of Pinterest from a “hold” rating to a “buy” rating in a research report on Friday, September 26th. One equities research analyst has rated the stock with a Strong Buy rating, twenty-four have assigned a Buy rating and five have assigned a Hold rating to the stock. Insider Activity at PinterestIn other Pinterest news, CFO Donnelly Julia Brau sold 22,821 shares of Pinterest stock in a transaction that occurred on Wednesday, September 24th. Pinterest Company Profile(Get Free Report)Pinterest, Inc operates as a visual search and discovery platform in the United States and internationally.