Charles Weir is a partner in the law firm of McDermott Will & Emery LLP and is based in the Firm’s Los Angeles office. Charles has extensive experience in all aspects of complex business litigation. While Charles has handled a range of business litigation matters, his civil practice focuses on securities class actions and health care litigation. Charles also has assisted numerous clients in connection with government investigations, with a particular emphasis on Foreign Corrupt Practices Act matters. During his career, Charles has tried multiple cases and has acted as lead counsel in numerous matters. He was named a Rising Star in business litigation by Los Angeles Magazine and Law & Politics every year from 2006 to 2013, and a Future Star in the 2012 and 2013 editions of Benchmark Litigation.
Representative Experience
Complex Civil Litigation


Representation of a co-founder of major semiconductor company in a high-profile securities class action and shareholder derivative suit regarding the company’s stock option accounting practices
Representation of major sporting goods manufacturer in consumer class action
Representation of members of the board of directors of publicly traded bank holding company in a securities class action
Representation of a subprime lender in a securities class action pending in bankruptcy court in Los Angeles
Representation of a major dialysis company in In re: Epogen Off-Label Marketing, a class action dismissed by the U.S. District Court for the Central District of California (discussed in the Big Suits Section of The American Lawyer following dismissal of claims against the Firm’s client)
Representation of Fortune 500 health services company in a qui tam suit
Representation of a big four accounting firm in a qui tam suit
Representation of a media company in multiple arbitration proceedings regarding contract and fraud claims


Criminal Defense - White Collar


Representation of a major oil services company in various Foreign Corrupt Practices Act investigations in China
Representation of a major energy company in a Foreign Corrupt Practices Act investigation regarding oil installations in Africa
Representation of a major media company in a “payola” investigation
Representation of a former employee of a major accounting firm in a government investigation of alleged tax shelters