MannKind Stock Price Slides As Afrezza Sales Lose Traction Oct. 28, 2016 1:27 PM ET Spencer Osborne •MannKind stock is below 50 cents again. •Afrezza sales slip to levels seen three months ago. •Cash and de-listing remain top concerns. http://seekingalpha.com/article/4016414-mannkind-stock-price-slides-afrezza-sales-lose-traction?app=1&auth_param=1vat:1c172l2:5817e1fe7b98d97b74b39d4c72d9c814&uprof=51