Court of Appeals for the Ninth Circuit March 20, 2002, Nos. 00-35268, 00-35313, CV-99-00419-TSZ, CV-99-00439-TSZ, CV-99-00452-RSL, CV-99-00453-JCC, CV-99-00455-WLD, CV-99-00469-BJR, CV-99-00503-RSL, CV-99-00506-BJR (Lipton v. Pathogenesis Corp.)

OPINION

GOULD, Circuit Judge.

Plaintiffs brought this securities fraud class action under §§ 10(b), 20(a) and 20A of the Securities Exchange Act of 1934, 15 U.S.C. §§ 783(b), 78t(a), 78t-l(a) and Rule 10b-5, 17 C.F.R. § 240.10b-5, on behalf of all purchasers of PathoGenesis Corporation common stock on the open market between January 15, 1999 and March 22, 1999.