Aftermarket Movers: Bristol, Sanofi surge.

(From AFX Europe (Focus))

NEW YORK (AFX) - Bristol-Myers Squibb Co. and Sanofi-Aventis saw its shares surge in the after-hours session Thursday, after a federal judge blocked sales of a generic version of its top-selling blood thinner Plavix.

U.S. District Judge Sidney H. Stein issued his ruling after a two-day hearing in which Paris-based Sanofi-Aventis and its New York-based partner Bristol-Myers insisted that Apotex Inc., a Canadian pharmaceutical company, must be forced to stop selling its product.

The judge denied demands by the companies that Apotex be forced to recall the generic product it had already sold.

Shares of New York-based …