Whistleblower Litigation

Hagens Berman—among the largest plaintiff-side firms in the world—has decades of experience filing and prosecuting cases on behalf of whistleblowers in False Claims Act qui tam litigation, and with claims of securities fraud, commodities fraud and tax fraud.

Hagens Berman’s litigation experience is unsurpassed, and we have succeeded for our whistleblower clients where other lawyers have failed. We have unmatched global resources to fight for whistleblowers—unlike other firms, Hagens Berman fights daily and wins against the world’s “too big to jail” corporations.

Our firm does not represent corporate interests. We represent whistleblowers. Hagens Berman prosecutes cases in nearly every federal district and dozens of state courts. We have litigated False Claims Act cases in courts across the country. We also handle Dodd-Frank whistleblower cases on behalf of our SEC and CFTC whistleblower clients pending in nearly every Regional Enforcement office of the SEC and several CFTC Enforcement offices.

Cases brought under federal and state False Claims Act laws and under the Dodd-Frank whistleblower programs of the SEC and CFTC provide financial rewards to private citizens who properly report wrongdoing to the government.

Hagens Berman litigates False Claims Act cases on behalf of whistleblowers challenging health care fraud, defense contractor fraud, financial/banking fraud, procurement fraud, education fraud, and other fraud committed by entities that receive government funding or government insurance. 

We also represent dozens of so-called Dodd-Frank whistleblowers under the SEC and CFTC programs. Unlike the vast majority of whistleblower law firms, Hagens Berman has proven expertise in the area of financial fraud, with noted experts in securities law and victories against large public companies and investment firms for securities fraud.

Hagens Berman also represents the two most prominent whistleblowers under the SEC and CFTC whistleblower programs. We take a small number of cases—ones that will beat the odds and trigger enforcement investigations.

Before you make a decision about which law firm and which lawyers you trust to best represent your interests as a whistleblower, contact our whistleblower law experts and learn what makes Hagens Berman different

Some of Hagens Berman's Recently Resolved Whistleblower Cases:

False Claims Act (qui tam)

  • Successfully represented the first Bank of America whistleblower challenging widespread mortgage fraud through fraudulent appraisal and underwriting activity committed by Countrywide Financial Corp. in U.S. ex rel. Lagow v. Countrywide Finan. Corp. (E.D.N.Y.) earning our client a multimillion-dollar award in 2012 from a billion-dollar settlement.
  • Successfully represented another Bank of America whistleblower challenging Bank of America’s failure to provide benefits to homeowners under the Home Affordable Mortgage Program in U.S. ex rel. Mackler v. Bank of Amer. Corp. (E.D.N.Y.) earning our client a large award from the same billion-dollar settlement.
  • Successfully represented an esteemed physician in a case challenging unlawful conduct by pharmaceutical giant Amgen Inc. in U.S. ex rel. Horowitz v. Amgen Inc. (W.D. Wa.) earning our client a multimillion-dollar settlement in 2012.

Dodd-Frank Whistleblower SEC/CFTC cases (only publicly disclosed cases LISTED):

  • In one of the first SEC whistleblower complaints filed under the new program, our whistleblower attorneys represented Haim Bodek, a leading algorithmic trading expert, in his complaint against BATS Global Inc. Hagens Berman’s case resulted, in 2015, in the largest SEC fine ever imposed on a U.S. financial exchange. Mr. Bodek’s work was twice reported on the front page of The Wall Street Journal.

Our firm also represents a whistleblower behind the 2018 SEC action against NYSE which resulted in a record-tying fine.

SEC Order
Bloomberg Article

  • In the most prominent CFTC whistleblower action since the program began, Hagens Berman represented the anonymous whistleblower who identified, through analysis of market data, a previously unknown cause of the 2011 market “Flash Crash,” resulting in the first arrest, Department of Justice prosecution settlement, and extradition of a foreign market manipulator in 2016.

Whistleblower Litigation Resource Library:

Why Select Hagens Berman?

Selecting a whistleblower attorney will have a significant impact on the outcome of your case.
When searching for a whistleblower lawyer to aid in your claim,
you want a firm with a record of success at the top of the profession.



Hagens Berman fights with the creativity and tenacity to continue to raise the bar and take on every case with the goal of achieving the best outcome for the largest group of individuals.

No Cost to You Unless We Win

No Cost to You Unless We Win

Our firm operates on a contingency fee basis, meaning the victims we represent pay nothing at all unless we win. Attorney fees are paid based on an industry percentage of overall settlement terms, allowing plaintiffs to reap the rewards.



We achieve results, and our track record proves it. While many class-action or individual plaintiff cases result in large legal fees and no meaningful result for the client, Hagens Berman finds ways to return real value.



At the basis of all that motivates Hagens Berman is our mission for corporate reform. It’s through our work that we continue to uphold and fight for the rights of those most vulnerable to corporate greed and negligence.

Whistleblower Litigation Blog Posts:

Whistleblower News: Sackler Family, Vale SA, Facebook

MedStar Health to Pay U.S. $35 Million to Resolve False Claims Act allegations, The whistleblowers, or relators, brought their actions under the qui tam or whistleblower provisions of the... more »

Written March 22, 2019 Whistleblower

Whistleblower News: Panama Papers, Brazil, Biogen

Biogen investors are paying the price - the firm's shares slumped more than 25 percent in early trading Thursday, wiping away a decent chunk of the company's market value. more »

Written March 21, 2019 Whistleblower

Whistleblower News: PG&E, 737 MAX, Pharmacy Fraud

Certifying the 737 Max was a collaborative effort between the F.A.A. and Boeing. The regulator for decades has relied on employees at aircraft manufacturers to assist in the review process. more »

Written March 20, 2019 Whistleblower

Whistleblower News: Theranos, Fiat Chrysler, Elon Musk

part thriller, part tale of corporate whistleblowers and perhaps foremost, a warning of how an apparent fraudster spouting tech jargon can bedazzle people more »

Written March 19, 2019 Whistleblower

"Class counsel has consistently
demonstrated extraordinary skill and effort."

— U.S. District Judge James Selna, Central Distict of California

In re Toyota Motor Corp. Unintended Acceleration Marketing

"...the track record of Hagens Berman['s] Steve Berman is...impressive, having racked...a $1.6 billion settlement in the Toyota Unintended Acceleration Litigation and a substantial number of really outstanding big-ticket results."

— Milton I. Shadur, Senior U.S. District Judge

Naming Hagens Berman Interim Class Counsel in Stericycle Pricing MDL

Hagens Berman has been featured
on the Plaintiffs' Hot List eight times

— The National Law Journal

The NLJ's List of the Year's Hottest Firms

The firm's "innovative approaches to litigation
have earned significant recognition"

— The Law Business Insider


"[A] clear choice emerges.
That choice is the Hagens Berman firm."

— United States District Court for the Northern District of California

In re Optical Disk Drive Products Antitrust Litigation (appointing the firm lead counsel)

"All right, I think I can conclude on the basis with my five years with you all, watching this litigation progress and seeing it wind to a conclusion, that the results are exceptional..."

— Judge Hamilton, U.S. District Court for the Northern District of California

In re Dynamic Random Access Memory Antitrust Litigation (Hagens Berman was co-lead counsel and helped achieve the $325 million class settlement)

Recent Recognition:

Hagens Berman is a plaintiffs’ class-action law firm that helps victims of auto accidents, sports injuries, defective products, dangerous drugs and business fraud pursue their legal rights. We take on large corporations for negligence and fraud, and hold them accountable.
Our attorneys are champions of consumer rights. The size or clout of the corporations we pursue is never a deterrent to our pursuit for justice. Over the years, we have built the resources we need to thoroughly investigate these personal injury and product defect cases, and achieve the best possible outcome for our clients. Our work is consistently recognized for industry excellence.

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