267 F.3d 400 (5th Cir. 2001) JAMES M. NATHENSON, on behalf of himself and all others similarly situated; DSAM GLOBAL VALUE FUND LTD; JONATHAN MARGALIT; AMIT SANGHVI; JIANBO XIE; JOHN DEROSA; ROBERT STRASSMAN; DEAN HAGEN; ARNO HAUSMANN, Plaintiffs-Appellants,v.ZONAGEN INC; ET AL, Defendants,ZONAGEN INC; JOSEPH PODOLSKI; STEVEN BLASNIK; M SUTTER, Defendants-Appellees. No. 99-20449 IN THE UNITED […]