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R. Brent Wisner

Managing Partner at Wisner Baum LLP
Los Angeles, CAAdmitted 2011

About R. Brent Wisner

Brent Wisner is the managing partner and lead trial attorney at Wisner Baum, where he handles complex and multidistrict litigation, class actions, toxic torts, and product liability cases. He has earned jury verdicts worth a combined $2.427 billion and helped negotiate settlements above $1 billion, all before turning 40, and is the youngest attorney in American history to win a multibillion dollar jury verdict. He served as trial co-lead counsel in Johnson v. Monsanto, the first Roundup cancer trial, which returned a $289.2 million verdict in 2018, and in Pilliod v. Monsanto, which returned a $2.055 billion verdict in 2019. He also helped release the Monsanto Papers, internal company documents that shaped the global debate over glyphosate. Brent serves in court appointed leadership roles in the Zantac, baby food, and Roundup litigations, and earned his J.D. and a master's in public policy from Georgetown before clerking for a federal judge in Honolulu.

Practice areas

Education

Georgetown University Law Center
J.D., 2010
University of California, Los Angeles
Undergraduate, 2005

Bar admissions & credentials

State Bar of California, admitted 2011
State Bar of District of Columbia, admitted 2021
State Bar of Pennsylvania, admitted 2024

Other attorneys at Wisner Baum LLP

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Proven verdicts and settlements from other Los Angeles firms

Panish Shea Ravipudi LLP
Panish Shea Ravipudi LLP
$4.9 billion · Anderson v. General Motors: A $4.9 Billion Verdict Over a Chevy Malibu Fuel Tank Fire
The Dominguez Firm
The Dominguez Firm
$29 million · Los Angeles Jury Awards $29 Million to Pedestrian Hit in Crosswalk
Harris Personal Injury Lawyers, Inc.
Harris Personal Injury Lawyers, Inc.
$21.5 million · $21.5 Million Settlement After Exposed Trolley Rail Left Man Paralyzed at San Diego Transit Station
West Coast Trial Lawyers
West Coast Trial Lawyers
$7 million · Mother Wins $7 Million After Disabled Son Dies in Hot Car Left by Caretaker Driver
BD&J, PC
BD&J, PC
$8 million · $8 Million Verdict After 15-Year-Old Dies of Cardiac Arrest at Football Practice Without a Defibrillator on Campus