Premarket roundup: Beacon Roofing, Danaher

Among the premarket activity stories for Friday, Sept. 12, from AP Financial News:.

NEW YORK (AP) _ A PiperJaffray analyst said Friday that recent hurricanes, including Gustav and the soon-to-land Ike, may help boost demand for Beacon Roofing Supply Inc.'s services.

NEW YORK (AP) _ Danaher Corp. fell in premarket trading Friday after an analyst downgraded shares of the diversified manufacturer, in light of its stock outperforming peers and the company's exposure to weakening European markets and a strengthening dollar.

CHARLOTTE, N.C. (AP) _ Shares of Lehman Brothers Holdings Inc. edged lower in Friday premarket electronic trading, as the embattled investment bank tries to locate a suitor before more market value and confidence is lost.

NEW YORK (AP) _ Analysts expect shares of Gilead Sciences Inc. to recover from a monthlong slump, and a Robert W. Baird analyst upgraded the biotechnology company's stock Friday.

NEW YORK (AP) _ Shares of Lockheed Martin Corp. could see increased activity Friday after the nation's largest military contractor received a $5.6 billion contract from the Pentagon.

NEW YORK (AP) _ A Morgan Keegan analyst on Friday cut his rating on shares of Buffalo Wild Wings Inc., Panera Bread Co. and CEC Entertainment Inc., saying the three restaurant stocks are already "fairly valued."