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About me

Barry R. Ostrager is a senior litigation Partner at Simpson Thacher & Bartlett LLP and from 1999 to 2011 was Head of the Litigation Department.  He has tried dozens of cases and argued scores of appeals throughout the country and has been prominently involved in many high-profile securities, anti-trust, and commercial cases.  He 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, and lead counsel for Hanwha in a multi-billion dollar dispute with the Korean government that was the subject of a multi-week trial.  Mr. Ostrager successfully argued before the United States Supreme Court the closely followed Epstein v. Matsushita case that arose out of Matsushita's successful tender offer for MCA, Inc.  Last year, he successfully argued again before the Supreme Court the Travelers v. Bailey case, which resolved important issues relating to the rights of settling insurers in asbestos-related bankruptcy.  

Mr. Ostrager has successfully tried to verdict five billion plus dollar cases, including the successful representation of Andersen Consulting against a $14 billion claim by Arthur Andersen in connection with Andersen Consulting’s successful bid to win a separation without cost from the Andersen Worldwide organization in the largest ICC arbitration in history.  Mr. Ostrager also successfully represented J.P. Morgan Chase in a breach of guarantee contract action against Motorola in which J.P. Morgan Chase obtained a $370 million verdict against Motorola.  In July, 2010, Mr. Ostrager was one of the trial counsel who produced a $110 million jury verdict in Arizona State court after a six week trial.  In 1993 Mr. Ostrager was lead trial and appellate counsel for Paramount Communications in the widely publicized QVC v. Paramount tender offer litigation. 

Of late, Mr. Ostrager has been involved in connection with a number of high profile cases including the representation of the America’s Cup holder and trials scheduled to take place this Spring and Summer for Ingersoll Rand and a member of the Jordanian Royal Family.

Mr. Ostrager has been prominently involved in supervising the firm's major 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 multi-billion dollar environmental insurance coverage dispute in which the jury returned a verdict for the insurers after a sixteen-month trial.  

Mr. Ostrager is co-author of the Handbook on Insurance Coverage Disputes (Aspen Law & Business 2010), a widely-used, three-volume treatise now in its fifteenth edition.  Mr. Ostrager is also a frequent lecturer on federal securities law and insurance law. 

Mr. Ostrager has been a member of the Firm since 1980.  He received his B.A. from City College of the City University of New York in 1968 and his M.A. in 1973.  He earned his J.D. from New York University School of Law in 1972 and served as a judicial clerk in the United States District Court for the Southern District of New York.  Mr. Ostrager is admitted in the New York and California State Bars; the United States District Courts for the Southern, Eastern and Northern Districts of New York, Connecticut, the Western District of Texas and the Northern and Central Districts of California; the United States Courts of Appeal for the Second, Third, Fourth, Sixth, Seventh, Ninth and District of Columbia Circuits; the International Court of Trade and the United States Supreme Court.  He is also a member of the Federal Bar Council, the New York City Bar Association, the American Bar Association, and the American Law Institute.


Practice areas


  1. Arbitration: 34%
  2. Insurance: 33%
  3. Litigation: 33%

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Contact info

Simpson Thacher & Bartlett LLP

425 Lexington Avenue

New York, NY, 10017-3954


NYCurrently registered 197303/07/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Leading U.S. Litigation Business Trial LawyerChambers USA2010
Top Ten Trial LawyersThe Legal 500 (US)2010
General Commercial (New York)Chambers USA2010
Insurance Dispute Resolution: Insurer (New York)Chambers USA2010
Insurance: Dispute Resolution: Insurer (Nationwide)Chambers USA2010
Insurance: Dispute Resolution: ReinsuranceChambers USA2010
Work experience
TitleCompany nameDuration
N/ASimpson Thacher & Bartlett LLP1980 - Present
Association namePosition nameDuration
The City BarMemberN/A
American Bar AssociationMemberN/A
American Law InstituteMemberN/A
Legal cases
Case nameOutcome
Travelers Indemnity Co. v. Bailey, 129 S. Ct. 2195 (U.S. June 18, 2009)Successful
Matsushita Elec. Indus. Co. Ltd. v. Epstein, 516 U.S. 367 (1996)Successful
Anderson Consulting v. Arthur Andersen and Anderson Worldwide Societe Corp.Successful
See all legal cases 
Publication nameTitleDate
Handbook on Insurance Coverage Disputes (Aspen Publishers, Inc.)Book, Co-author2010
Modern Reinsurance Law and Practice (2d ed. Glasser LegalWorks)Book, Co-author2000
School nameMajorDegreeGraduated
City University of New York, City CollegeN/AMA - Masters1973
New York University School of LawLawJD - Juris Doctor1972
City University of New York, City CollegeN/ABA - Bachelor of Arts1968
Speaking engagements
Conference nameTitleDate
Mealey Wall Street Asbestos ForumBig Picture Issues - The Insurance Disputes2005
PricewaterhouseCoopers program"New SEC Rules on Executive Compensation and Stock Option Disclosure and the Option Granting Scandals"N/A