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Roundup Cancer Lawsuit Overview

Last updated: April 10, 2026

What Is the Roundup Lawsuit?

Roundup, the world's most widely used weed killer, has been linked to Non-Hodgkin Lymphoma and other cancers. Bayer (which acquired Monsanto in 2018) has faced over 100,000 lawsuits and paid more than $11 billion to settle claims, with new cases still being filed in 2026.

Roundup's active ingredient is glyphosate, a chemical that the World Health Organization's International Agency for Research on Cancer (IARC) classified as "probably carcinogenic to humans" in 2015. Despite this classification and mounting evidence, Roundup remains widely available and used.

The Science Behind the Claims

The link between glyphosate exposure and Non-Hodgkin Lymphoma is supported by extensive research:

  • 2015 IARC classification: Glyphosate is "probably carcinogenic to humans"
  • Multiple peer-reviewed studies have shown an association between glyphosate exposure and NHL
  • Internal Monsanto documents revealed during litigation show the company was aware of cancer concerns for decades
  • Agricultural worker studies have consistently shown elevated NHL rates in those exposed to glyphosate
  • California's Office of Environmental Health Hazard Assessment added glyphosate to its Proposition 65 list of cancer-causing chemicals

Who Was Exposed to Roundup?

People at highest risk of significant Roundup exposure include:

  • Farmers and agricultural workers who applied Roundup to crops
  • Landscapers and groundskeepers
  • Nursery and garden workers
  • Highway and railroad workers who used Roundup for weed control
  • Homeowners who used Roundup regularly on lawns and gardens
  • Golf course employees
  • Forestry workers
  • Sod farm workers

What Cancers Are Linked to Roundup?

The lawsuits primarily focus on Non-Hodgkin Lymphoma (NHL) and its subtypes:

  • B-cell lymphoma
  • T-cell lymphoma
  • Diffuse large B-cell lymphoma (DLBCL)
  • Follicular lymphoma
  • Mantle cell lymphoma
  • Chronic lymphocytic leukemia (CLL)
  • Marginal zone lymphoma
  • Burkitt lymphoma
  • Multiple myeloma

What Are Plaintiffs Alleging?

The lawsuits allege that Monsanto (now Bayer):

  • Knew or should have known that glyphosate could cause cancer
  • Concealed scientific evidence of cancer risk
  • Influenced regulatory decisions to keep glyphosate on the market
  • Failed to warn farmers, workers, and consumers about cancer risks
  • Manipulated published research through ghostwriting and other tactics
  • Marketed Roundup as safe despite knowing the risks

Major Verdicts and Settlements

The Roundup litigation has produced some of the largest jury verdicts in mass tort history:

Case Year Verdict Notes
Johnson v. Monsanto 2018 $289 million First Roundup trial verdict
Hardeman v. Monsanto 2019 $80 million Federal trial victory
Pilliod v. Monsanto 2019 $2.05 billion Largest Roundup verdict (later reduced)
Pilliod (final) 2020 $86.7 million After reductions

Settlement Programs

  • Bayer paid approximately $11 billion to settle existing cases
  • Approximately 100,000 cases have been resolved
  • New cases continue to be filed and litigated
  • Bayer reserved additional funds for future claims

Current Status of the Litigation

The Roundup litigation is consolidated as MDL 2741 in the Northern District of California, before Judge Vince Chhabria.

  • Thousands of new cases continue to be filed
  • Bayer continues to face individual trials and settlements
  • Cases remain active for newly diagnosed plaintiffs
  • Bayer has not removed Roundup from US market

Why You Should Act Now

If you used Roundup and developed Non-Hodgkin Lymphoma:

  • Statutes of limitations vary by state — typically 1-3 years from diagnosis
  • Medical records documenting both exposure and diagnosis are essential
  • Settlement programs are still active for qualifying claimants

A free case review costs nothing. Find out if your cancer may be linked to Roundup exposure.

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