Alcoa ( AA) said it will sell its packaging and consumer businesses by next year. The New York-based smelter, which earlier this year was rebuffed in an unsolicited bid to acquire rival Alcan ( AA), said it is also near a definitive agreement to sell its automotive castings business and should close that transaction by the end of the year. Alcoa said it expects to take $845 million in restructuring charges to cover costs tied to the transactions. Alcoa has sold or closed a number of businesses this year as activist investors pressure the company to slim down and improve shareholder returns. Shares rose 39 cents to $38.05.