Among the stock activity stories for Friday, Aug. 10, from AP business news:
— Shares of Roundy's Inc. fell after a ratings cut from Jefferies & Co., which believes that the terrible economy and growing competition will create more pressure for the Midwestern grocery.
— PharmAthene Inc. shares fell after the biodefense company said health regulators halted its study of an experimental anthrax vaccine.
— Shares of Bottomline Technologies Inc. soared after the fourth-quarter performance of the payment and invoice service provider beat market expectations.
