Mark A. Prost

Shareholder in St. Louis, MO

Mark Prost is a litigation partner in Sandberg Phoenix’s Products Liability practice group where he is head of the firm’s Toxic Tort team. He has been with the firm since 2000, a partner since 2006, and has a broad range of litigation and trial experience in defending manufacturers of pharmaceutical and medical products (talc/ovarian cancer, opioids, transvaginal mesh), toxic tort products (asbestos, benzene, chemical products, welding fumes, etc.), transportation products (railroad, automotive, aviation, trucking, etc.), children’s products and construction products.  Mark actively defends cases in Missouri and Illinois, but also has a national practice in which he serves as national coordinating counsel for several product manufacturers. 

In 2019, Mark served as a Faculty Member for the Trial Academy for the International Association of Defense Counsel at Stanford University Law School. Mark is also a published author and frequent lecturer at national Toxic Tort seminars, has served for several years as Vice Chair for the ABA’s Toxic Tort and Environmental Law Committee and is former Editor of the ABA’s Toxic Tort Newsletter. Mark also has successful appellate experience before the Missouri Court of Appeals, Missouri Supreme Court, and the United States Court of Appeals for the Seventh and Eighth Circuits. 

Mark has jury trial experience in several high-profile, multi-million dollar exposure cases. In 2016 and 2017, Mark 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.

In May 2018, Mark 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 defendant resulting in an award of only $30,000. In March 2012, Mark won a defense verdict while defending 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. Mark also successfully argued and defended the verdict before the Missouri Court of Appeals. (Burbridge v. Harsco, et al., 413 S.W.3d 649 (2013)). 


Personal Injury & Tort Defense Product, Asbestos & Toxic Tort Liability


Automotive Hunting & Sporting Goods Manufacturing & Distribution Medical Devices Recreational Products Transportation