Punitive Damages in Mass Tort

Punitive damages in mass tort litigation are non-compensatory damages awarded to punish a defendant for particularly egregious conduct — such as concealing known safety risks, manipulating clinical trial data, or continuing to market a product after internal knowledge of serious harm — and to deter similar conduct going forward, awarded in addition to compensatory damages for the plaintiff's actual injury. Their availability and size are constrained by the Due Process Clause under the Supreme Court's decisions in BMW of North America v. Gore (1996) and State Farm Mutual Automobile Insurance Co. v. Campbell (2003), which established guideposts including the reprehensibility of the defendant's conduct, the disparity between the punitive award and actual harm, and comparable civil penalties, and which generally disfavor punitive-to-compensatory ratios exceeding single digits absent particularly egregious circumstances. Many states also impose statutory caps on punitive damages or require a bifurcated trial structure separating liability and compensatory phases from a subsequent punitive phase, and some states prohibit punitive damages against pharmaceutical manufacturers whose products received FDA approval absent evidence of fraud on the agency. Because punitive exposure often depends on internal corporate documents establishing knowledge and intent, its magnitude and even its availability frequently remain uncertain well into a docket's life.

Punitive damages exposure is a source of settlement leverage and tail-risk upside that funders model separately from, and with substantially more discretion than, compensatory damages, since punitive awards are inherently more variable and more likely to be reduced on appeal or in post-trial due process review.

Funders evaluating a docket where discovery has surfaced strong evidence of corporate knowledge and concealment treat that evidence as a driver of settlement value and negotiating leverage rather than incorporating uncapped punitive multiples directly into base-case recovery models, given the appellate exposure any large punitive verdict inevitably carries.