Roundup Statistics in St. Louis
117 years (1901-2018)
Monsanto HQ tenure in St. Louis metro
$1.56 billion (2023)
St. Louis Circuit Court Roundup verdict
4,000+
Bayer Crop Science employees in St. Louis metro
3,500+
Missouri Roundup claims filed
Courts in St. Louis, Missouri
St. Louis Circuit Court — 22nd Judicial Circuit
10 N Tucker Blvd, St. Louis, MO 63101
U.S. District Court — Eastern District of Missouri
111 S 10th St, St. Louis, MO 63102
Hospitals & Trauma Centers in St. Louis
Siteman Cancer Center — Washington University/BJC
660 S Euclid Ave, St. Louis, MO 63110
Mercy Hospital St. Louis — Cancer Center
615 S New Ballas Rd, St. Louis, MO 63141
Liability Considerations in St. Louis
St. Louis: Monsanto's Home and the Heart of the Litigation
Monsanto's relationship with St. Louis spans over a century. John Francis Queeny founded the company in 1901 in St. Louis as a chemical manufacturer. The company grew into a global agricultural giant, and its Creve Coeur campus in suburban St. Louis County became the headquarters for glyphosate research, product development, and the regulatory strategy that would eventually be exposed in the Monsanto Papers.
When Bayer acquired Monsanto in 2018, it maintained the Creve Coeur campus as the headquarters of its Crop Science division. This means that key witnesses — scientists, executives, regulatory affairs personnel, and toxicologists who were involved in the decisions documented in the Monsanto Papers — remain in the St. Louis metropolitan area. Corporate records, internal emails, and research files are physically housed in St. Louis-area facilities, making Missouri courts a natural and strategically advantageous venue for Roundup litigation.
The $1.56 Billion St. Louis Verdict
In 2023, a St. Louis Circuit Court jury returned a consolidated verdict of $1.56 billion against Bayer for a group of plaintiffs who developed NHL after decades of Roundup use. The verdict included substantial punitive damages reflecting the jury's conclusion that Monsanto's conduct — suppressing cancer evidence, ghostwriting safety studies, and cultivating regulatory allies — constituted outrageous and malicious behavior. The case is under appeal but demonstrates St. Louis juries' willingness to hold the company accountable on its home turf.
Your Legal Team
Patricia Hale
Partner
St. Louis, MO
Patricia Hale has practiced mass tort litigation in St. Louis for 19 years, positioning her at the geographic heart of the Roundup litigation. Her environmental science training and deep familiarity with Monsanto's corporate history give her particular expertise in developing the corporate knowledge and concealment evidence that has driven punitive damage awards. She was part of the trial team in the $1.56 billion St. Louis consolidated verdict and has helped secure over $500 million in Roundup settlements for Missouri clients. Patricia is a frequent commentator on Roundup litigation developments for legal and agricultural media.
Education
- J.D., Washington University School of Law (2005)
- B.A., Environmental Science, University of Missouri (2002)