Mark A. Prost

Illinois

Missouri

United States District Court for the Central District of Illinois

United States District Court for the Northern District of Illinois

United States District Court for the Southern District of Illinois

United States District Court for the Eastern District of Missouri

United States District Court for the Western District of Missouri

American Bar Association, former Vice Chair, TIPS, Toxic Tort and Environmental Law Committee and former Editor of the Toxic Torts Newsletter

International Association of Defense Counsel

Defense Research Institute

Hispanic Bar Association of St. Louis

Mark has served as an honorary judge at Moot Court Competitions at Washington University School of Law and Southern Illinois University School of Law. He also has served as a judge in the Philip C. Jessup International Law Moot Court Competition.

Mark is a past President of the School Board for Little Flower Catholic School in Richmond Heights, Missouri.

“Plaintiff Litigation Tactics,” International Association of Defense Counsel (IADC) 2026 Product Liability Roundtable, Pfizer Headquarters in New York City, New York (September 2026)

“The Mounting Attacks on Company Sponsored Science, Speech and Experts,” International Association of Defense Counsel (IADC) Midyear Meeting, Pebble Beach, CA (February 2020)

Presented as a Faculty Member at the 2019 Trial Academy for the International Association of Defense Counsel at Stanford University Law School.

“The Gathering Storm: Strategies for Surviving an ENDS (Electronic Nicotine Delivery System) Litigation Battle,” 2019 Next Generation Nicotine Delivery Seminar

“Cautionary Tales – Lessons Litigators Learned the Hard Way,” NTLF Litigation Management Seminar

“Perrin National Litigation Conference; “Talc: Evaluating the Key Legal and Strategic Issues”

“Regulatory, Compliance, and Litigation Issues in the Environmental, Energy, and Fracking Industries,” American Bar Association, Toxic Torts & Environmental Law Committee’s Spring Meeting

“Analyzing the Increase in Lung Cancer and Inhalation Injury Cases in Toxic Tort Litigation,” American Bar Association, Toxic Torts & Environmental Law Committee’s Spring Meeting

“Dealing with Other Similar Incidents (OSI’s) During Discovery and Trial,” CLE Seminar

“Finding and Retaining Experts in Product Liability Cases,” CLE Seminar

“Successful Strategies for Written Discovery in Missouri,” Lorman Education Services

“Maintenance Issues in Defense of Crane and Aerial Device Cases,” Defense Research Institute, Products Liability Seminar

“Confidentiality of Medical Records in Illinois,” Lorman Education Services

Presented CLE on privacy concerns regarding medical records, including quality assurance and peer review records.

Presented lecture on maintenance issues, including legal aspects, OSHA/ANSI standards and practice guidelines.

Presented lecture on written discovery topics, including taking and answering written discovery, with an emphasis on Missouri and Federal law.

Contributor, “Missouri and Southern Illinois Becoming Ground Zero for Young People Suing JUUL and Others Attributing a Variety of Medical Problems to E-Cigarette Nicotine Addiction,” Products Liability Blog (September 2019)

“The Not-So Exclusive Remedy? Civil Liability for Toxic Torts in Missouri and Illinois,” SandRun Risk Newsletter (July/August 2019)

“Missouri Supreme Court Weighs in on Venue: Finds Prejudice is not Implicit to Litigation Hotspots,” IADC Product Liability Newsletter, International Association of Defense Counsel (April 2018)

“The Bad Faith Exception to the One Year Bar to Removal Based on Diversity Jurisdiction – Is Proof of Forum Shopping Enough or do Defendants Need to Prove More?” IADC Product Liability Newsletter, International Association of Defense Counsel (October 2017)

Served as local trial counsel for a raw material supplier in six separate ovarian cancer talc trials in St. Louis, helping his client obtain three defense verdicts, a mistrial, and two other verdicts where his client was found liable for only 10% and 1% of compensatory damages.

Defended a prominent St. Louis business in a premises liability jury trial involving over $2 million in alleged personal injury damages where the jury only apportioned a small percentage of liability to the defendant resulting in an award of only $30,000.

Defense verdict for Union Pacific Railroad and Harsco Corporation in the jury trial of Burbridge v. Harsco Corporation, et al., a case involving a train conductor alleging permanent eye injuries from a train accident. Successfully argued and defended the verdict before the Missouri Court of Appeals. (Burbridge v. Harsco, et al., 413 S.W.3d 649 (2013)).

Represented international distributors of nitrous oxide in wrongful death claims in several states.