Barry Ostrager

Senior Partner at Simpson Thacher & Bartlett LLP

Barry R. Ostrager is a senior partner at Simpson Thacher & Bartlett LLP and former chair of Simpson Thacher’s litigation department from 1999 to 2011. Mr. Ostrager has been prominently involved in supervising the firm’s insurance and reinsurance practices in both its New York and Los Angeles offices. He has been lead trial counsel in more than a dozen major insurance coverage cases, including Shell Oil Co. v. Winterthur Swiss Insurance Company, a multibillion dollar environmental insurance coverage dispute in which the jury returned a verdict for the insurers after a 16-month trial. Mr. Ostrager was lead trial counsel for Swiss Re in the highly publicized insurance coverage dispute involving the World Trade Center tragedy, which resulted in a unanimous jury verdict in favor of Swiss Re. Additionally, he successfully argued before the Supreme Court the Travelers v. Bailey case, which resolved important issues relating to the rights of settling insurers in asbestos-related bankruptcy. Most recently, Mr. Ostrager prevailed in an asbestos-related insurance coverage trial in California Superior Court. Mr. Ostrager has successfully tried to verdict five cases in which more than a billion dollars was at issue. He has also successfully tried dozens of cases to verdict and argued scores of appeals throughout the country. He has been prominently involved in the trials of many high-profile insurance, securities, antitrust and other commercial cases. Mr. Ostrager is co-author of the Handbook on Insurance Coverage Disputes (Aspen Law & Business 2012), a widely used, three-volume treatise now in its 16th edition. Mr. Ostrager is also a frequent lecturer on insurance law. In June of 2006, Mr. Ostrager was named the “Leading U.S. Litigation Business Trial Lawyer” by Chambers & Partners. This year, for the 10th consecutive year, Mr. Ostrager was ranked by Chambers as a “Band One” General Commercial Litigator and “Band One” Insurance: Dispute Resolution: Insurer Litigator.