Litigator of the Week Runners-Up and Shout-Outs
Accolades | October 23, 2026
The AmLaw Litigation Daily
A team at Gibson Dunn & Crutcher led by partners Gregg Costa and Monica Loseman and associate Patrick Fuster convinced the Fifth Circuit to vacate class certification in a securities fraud case against biopharmaceutical client Cassava Sciences and certain executives. Last week, a Fifth Circuit panel found the district court failed to adequately consider evidence that the company’s stock was subject to “meme-stock dynamics,” including large price swings unrelated to company news, which could undercut the presumption that it traded in an efficient market. Costa, a former Fifth Circuit judge, argued the appeal before his former bench. The Gibson Dunn team representing the company and executive Eric J. Schoen also included partner Brian Richman, counsel Scott Campbell, and associates John Turquet Bravard, Lloyd Marshall and Jed Greenberg. Doug Greene, Aric Wu and Zachary Taylor of Baker & Hostetler represented other individual defendants, Remi Barbier and Lindsay Burns.
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