LAWYER PROFILE
Clare O'Brien

Clare O'Brien

USA 2026

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Ranked in 1 practice area

About

Provided by A&O Shearman

Practice Areas

Clare is our other global Life Sciences Sector Lead and regularly advises major U.S. and international clients on their public and private mergers and acquisition transactions, including public company restructurings, joint ventures and large public transactions.

She also provides counsel on corporate law questions, including corporate governance matters.

Prior to joining the firm, Ms. O’Brien worked with the law firm of Brady & Tarpey, P.C., where her practice included cross-border corporate transactions, and litigation. She began her legal career at the Irish law firm of Eugene F. Collins & Son.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Corporate/M&A - New York

Band 5
Band 5

Individual Editorial
Clare O'Brien utilizes her extensive experience in corporate transactions to assist a client base of significant public and private companies. She regularly handles M&A, joint ventures and corporate governance issues.

Ranked Individuals at A&O Shearman (79)

California

California: San Francisco, Silicon Valley & Surrou

District of Columbia

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New York

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