LAWYER PROFILE

Ann O'Brien

Global 2026

 Sheppard, Mullin, Richter & Hampton LLP

Ranked in 1 practice area

Antitrust: Cartel

USA

Activate your profile

Showcase what sets your firm apart and elevate how your ranking is seen by legal buyers.

Get in touch

Chambers Review

Provided by Chambers

Chambers Global Guide

Antitrust: Cartel - USA

Band 3
Individual Editorial

Ann O'Brien of Sheppard, Mullin, Richter & Hampton LLP is skilled in handling both criminal and civil investigations and litigation. Clients benefit from her prior experience at the DOJ.

Strengths

Ann is instrumental in formulating the legal defense.

Ann is very smart and focused on antitrust.

Ann is good in litigation.

View ranking table

Use Chambers content

Interested in reusing Chambers content? Speak to us about licensing.

Contact us

Ranked Individuals at Sheppard, Mullin, Richter & Hampton LLP (24)

Belgium

China

South Korea

USA

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership