BUZZ-Atlantic Power Corp: CEO buys shares
** Canadian power producer's U.S.-listed shares up 5.2 pct at $3.24
** CEO Moore James J Jr buys 20,000 shares of company at $3.09 per share on Tuesday, according to regulatory filing (bit.ly/1Nx58m1)
** Purchase price represents 2.8 pct discount to stock's Monday close of $3.18
** Up to Tuesday's close, stock had risen 11 pct this year
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