Click to view a price quote on CATM. : Shares of Cardtronics  (CATM) - Get Report jumped Friday after the ATM owner said it received and reviewed an unsolicited takeover bid at $39 a share, compared with the one it signed less than a month ago at $35 a share. The Houston company said the board decided to enter a non-disclosure agreement with the new bidder in order to share nonpublic information during negotiations. Cardtronics shares at last check jumped past $41, indicating that investors figure that a yet higher proposal might come through.