R. Brent Wisner

Baum, Hedlund, Aristei & Goldman, P.C.
10940 Wilshire Blvd Fl 17
Los Angeles, CA 90024
(310) 207-3233

Brent Wisner is an attorney and senior shareholder in the Los Angeles office of Baum Hedlund Aristei & Goldman. A Los Angeles native, Brent is driven by a deep-rooted passion for using the law to help those who have been marginalized and hurt by large, and sometimes malicious, corporations. Brent has dedicated his practice to vindicating his client’s rights and holding wrongdoers accountable. He concentrates his practice on pharmaceutical class action litigation, toxic-tort injuries, whistleblower and qui tam claims, and consumer fraud litigation.

Brent is one of Baum Hedlund’s lead trial attorneys and manages a highly-trained team of attorneys on all aspects of the cases in his department. He takes pride in personally working up all facets of litigation—from briefing, expert discovery, through trial, and, if needed, appeal. After obtaining two landmark verdicts against Monsanto, he has been showered with major awards and recognition. He is the youngest attorney to ever obtain a multi-billion-dollar verdict.

Pharmaceutical Litigation

Law360 named Mr. Wisner a “Titan of the Plaintiffs Bar” for, in part, his role as co-lead counsel in a complex trial that resulted in the first multi-million-dollar jury verdict against a brand-name drug-maker, GSK, holding it liable for injuries caused by a generic version of the drug Paxil. The case has been described as groundbreaking and likely to shape the landscape of pharmaceutical litigation for years to come. Also, because of this cutting-edge verdict, The National Law Journal recognized Brent and the firm as 2018 Elite Trial Lawyers and the first place winner in the category of Pharmaceutical Litigation.

One of the Leading Zantac Lawyers in the Country

In 2019, Brent and his colleagues filed lawsuits against the manufacturers of Zantac (ranitidine) alleging the popular heartburn medication contains a cancer-causing chemical (NDMA) at levels over 3,000 times greater than the FDA’s legal limit. The lawsuits were among the first of what will likely be many thousands. “Based on recent scientific findings, the levels of NDMA in Zantac are staggering,” says Wisner. “Considering how many people took Zantac in the U.S. since 1983, we are staring into the face of a public health crisis, and these defendants—in particular GSK and Pfizer—are to blame.”

The judge overseeing the multi-district litigation (MDL No. 2924, where all of the cases filed in federal courts are consolidated) appointed Brent to the Practices and Procedures Team to help establish the protocols and methodology for litigating tens of thousands of cases in the years to come. Brent also serves as Co-Chair of the Zantac Litigation Group for AAJ – American Association for Justice.

Brent’s Appearances Discussing the Zantac Litigation

Lawyer: ‘Real Explosion’ of Lawsuits Predicted Over Zantac – Law.com

CA Man Says Zantac Medication Caused His Cancer – Spectrum TV News

Zantac Census Plus, Mass Torts Made Perfect Connect webinar, Apr. 2020

Zantac: A Major Health Crisis, Mass Torts Made Perfect Connect webinar, Mar. 2020

Zantac Litigation, Master of Mass Tort Conference, Feb. 2020

Status of the Zantac Litigation, American Association of Justice webinar, Jan. 2020

Zantac: Diving into the Science – Harris Martin MDL Conf., Jan. 2020

The Science: NDMA, Ranitidine, and the Risk of Cancer – Harris Martin’s Zantac Litigation Conference, Jan. 2020

Key New Mass Torts: Zantac – Harris Martin Multi-district Litigation Conf., Dec. 2019

Zantac Attack: Over the Counter Carcinogen – Mass Torts Made Perfect Conf., Oct. 2019

Brent Wisner Roundup Cancer Lawyer

Brent Wisner served on all the trial teams for the first three Monsanto Roundup trials. He served as co-lead trial counsel in two of the first three cases, delivering the opening and closing arguments, and cross-examining many of Monsanto’s corporate witnesses.

Brent Wisner in Monsanto Roundup Litigation:

Johnson v. Monsanto Co. | $289.2 Million Jury Verdict | Co-Lead Trial Counsel

Hardeman v. Monsanto Co. | $80 Million Jury Verdict | Trial Team Member

Pilliod et al. v. Monsanto Co. | $2.055 Billion Jury Verdict | Co-Lead Trial Counsel

The juries in the first three trials found that exposure to Monsanto’s Roundup weed killer caused the plaintiffs to develop non-Hodgkin lymphoma, awarding more than $2.424 billion in total damages.

Brent also holds a judge-appointed leadership role as administrator and co-lead counsel for the Roundup Judicial Council Coordination Proceedings (JCCP), which consists of hundreds of Roundup cases consolidated before the California Superior Court for the County of Alameda (state court). He also serves as Liaison Counsel to the Federal MDL-2741 (multi-district litigation) In Re: Roundup Products Liability Litigation for Roundup JCCP 4953 Alameda County.

Featured in the New York Times – Attorneys Brent Wisner and Michael Baum in Brussels with clients John Barton and Teri McCall before important EU glyphosate vote, bringing a face to the Roundup lawsuits and to focus on the Monsanto Papers.

Following the groundbreaking verdicts in the Monsanto trials, Brent has been honored with numerous awards and accolades in recognition of his skill in the courtroom:

The Best Lawyers in America® 2021

MVP of the Year 2020, Product Liability, Law360

Top 100 Lawyers in California 2020, Daily Journal

Top Plaintiffs Lawyers in California, 2020, Daily Journal

2019 Civil Plaintiff Trial Lawyer of the Year, National Trial Lawyers and ALM

Winning Litigators Titans of Industry, 2019, National Law Journal

Top 100 Verdicts 2019, ALM, National Law Journal, Verdict Search (Pilliod et al. v. Monsanto Co.)

Top 40 Under 40 Attorneys in California 2019, Daily Journal (Lifetime Award)

Number 1 Verdict in California in 2019, Topverdict.com (Pilliod et al. v. Monsanto Co.)

Top 10 Verdicts in the United States in 2019, Topverdict.com (Pilliod et al. v. Monsanto Co.)

Daily Journal Top Verdicts 2019

2020 Elite Trial Lawyers Mass Tort Law Firm of the Year Finalist, The National Law Journal and The Trial Lawyer Magazine

2019 Trial Lawyer of the Year Finalist, Consumer Attorneys Association of Los Angeles

2019 Elite Trial Lawyers Mass Tort Trial Team of the Year, The National Law Journal and The Trial Lawyer Magazine

America’s 50 Most Influential Trial Lawyers 2019 – Trial Lawyer Magazine and The National Law Journal

Top Plaintiffs Lawyers in California 2019, Daily Journal

Trial Team of the Year 2019, The National Trial Lawyers Top 100

The Round Table: America’s Most Influential Trial Lawyers 2018, National Trial Lawyers

Top 100 Lawyers in California 2018, Daily Journal

Daily Journal Top Verdicts, 2018

Lawdragon 500 Leading Plaintiff Consumer Lawyer, 2019, 2020

Number 1 Product Liability Verdict in California in 2018, Topverdict.com (Johnson v. Monsanto Co.)

Top 10 Personal Injury Verdicts in the U.S. in 2018, Topverdict.com (Johnson v. Monsanto Co.)

Top 100 Verdicts 2018, ALM, National Law Journal, Verdict Search (Johnson v. Monsanto Co.)

CVN’s Top 10 Most Impressive Plaintiff Verdicts of 2018