Steve Six, Stueve Siegel Hanson LLP Photo


An experienced trial attorney, Steve Six has successfully tried complex cases before juries in state and federal court. He has tried cases to verdict in a wide variety of areas, including product liability, professional liability, commercial disputes, and consumer fraud. Steve has significant experience in multidistrict litigation and has litigated cases before the Judicial Panel on Multidistrict Litigation.

Areas of focus include:

Antitrust. Steve focuses on recovering damages for corporate victims of antitrust cartels for price-fixing, restraints of trade, boycotts, and other anticompetitive practices. Steve has represented companies bring claims for price fixing in the agricultural sector.  Steve is currently representing a large commercial purchaser in claims against the three largest producers of shelf stable tuna. Steve has taught antitrust law at the University of Kansas School of Law as an adjunct professor. 

Business Litigation.  Steve’s practice includes a broad range of business litigation from business torts to breach of contract cases. Steve has represented senior corporate executives in whistle blower cases involving Dodd-Frank and Sarbanes-Oxley claims, as well as other wrongful discharge and employment-related claims.

Personal Injury. For more than 20 years, Steve has been trying cases and handling lawsuits for individuals in personal injury, product liability, and other complex injury cases who have been injured or harmed. He currently is handling cases against ride sharing companies like Uber and Lyft arising out of assaults by unfit and poorly screened drivers.

Appellate. Steve maintains an active appellate practice and has successfully argued before state appellate courts in Kansas and Missouri, the federal appellate courts, and before the U.S. Supreme Court. Before joining Stueve Siegel Hanson, Steve was a district court judge and served as a law clerk to Judge Deanell R. Tacha of the U.S. Court of Appeals for the Tenth Circuit.

Steve joined Stueve Siegel Hanson in 2011 following his term as the 43rd Attorney General of Kansas. As Attorney General, Steve represented the State of Kansas in complex cases in various areas, including healthcare, antitrust, environmental resources and consumer protection. He successfully prosecuted capital and first-degree murder cases. He also represented the State of Kansas in multimillion-dollar water disputes with the States of Nebraska and Colorado before the U.S. Supreme Court.

Steve has been recognized among the “Best of the Bar” by the Kansas City Business Journal and named to Missouri/Kansas Super Lawyers since 2012. He is listed in The Best Lawyers in America in the areas of appellate practice and commercial litigation.



Over the past 25 years, Steve has successfully represented a variety of clients in complex civil and criminal matters at the trial court and appellate levels in courts across the country as well as represented clients in various arbitration forums. He has defended and/or prosecuted claims in the areas of antitrust, business litigation, employment, wage and hour litigation, RICO, white collar criminal defense, and class/collective actions. 

Recent Litigation

In Re: Syngenta AG MIR 162 Corn Litigation, MDL 2591, Steve represented corn farmers, grain elevators and ethanol plants throughout the United States in claims against Syngenta.. In June of 2017, Stueve Siegel secured a jury verdict for $217.7 million on behalf of a class of Kansas farmers against biotech giant Syngenta related to the sale of genetically modified corn seed, the 10th largest jury verdict in the country in 2017 according to the National Law Journal. Following this verdict, a $1.51 billion settlement on behalf of nationwide classes of corn farmers, grain handling facilities and ethanol production plants was reached with Syngenta, the largest settlement in the history of GMO agricultural litigation.

In re Packaged Seafood Products Antitrust Litigation (Southern District of California). Steve represents Associated Wholesale Grocers, Inc., in an antitrust lawsuit filed in the District of Kansas against the largest producers of canned tuna in the country – Bumble Bee, Chicken of the Sea, and StarKist. The lawsuit alleges that these producers conspired to fix, raise, and maintain prices of canned and pouched tuna sold in the United States over a nearly 15-year period.

Examples of Past Litigation

Radon Sport, Inc. v. Sports Car Club of America et al. – Steve represented Radon Sport, Inc. in an antitrust action against several race cars manufacturers and the industry’s sanctioning body. The plaintiff alleged that the defendants engaged in a long-running conspiracy to oust them the market for Formula Continental race cars. A confidential settlement was reached with all defendants.  

Small v. BOKF, N.A., 13-cv-01125-REB-MJW, United States District Court for the District of Colorado.  Steve was appointed class counsel for claims against the BOKF banking divisions for alleged violations of TILA, EFTA and state consumer protection law relating to its payday loan product FastLoan.

In re Fresh and Process Potatoes Antitrust Litigation, Case No: 4:10-md-02186 ID – Our firm represents Associated Wholesale Grocers, Inc. against the country's largest potato growers and shippers alleging that these defendants fixed the price of fresh and processed potatoes. The plaintiff alleges that starting in 2004, defendants conspired to use pre-harvest and post-harvest methods to control and reduce the supply of potatoes in order to raise and stabilize the prices at which potatoes were sold in the United States     

In re Chocolate Confectionary Antitrust Litigation, MDL No. 1935 - Associated Wholesale Grocers, Inc. v. The Hershey Company, Mars, Inc., Nestle USA, Cadbury plc, et al., 12-CV-2209, District of Kansas.  Our firm represents Associated Wholesale Grocers, Inc. in an antitrust lawsuit filed in the District of Kansas against some of the country's largest chocolate producers alleging that they conspired to artificially inflate the price of chocolate.  The claims include violations of the Kansas Restraint of Trade Act, K.S.A. 50-101, et seq.

In re Processed Egg Products Antitrust Litigation, MDL Mo. 2002 - Associated Wholesale Grocers, Inc., et al. v. United Egg Producers, United Egg Association, et al, 10-cv-2171, Wyandotte County District Court. Our firm represented opt-out plaintiff Associated Wholesale Grocers, Inc. in an antitrust lawsuit filed in Wyandotte County, Kansas against several large egg producing companies and shell egg trade associations.  The lawsuit alleged that defendants engaged in illegal price fixing in violation of the Kansas Restraint of Trade Act, K.S.A. 50-101, et seq. After nearly four years of litigation, Stueve Siegel Hanson successfully resolved this litigation in 2014.

Anderson v. Spirit Aerosystems Holdings, Inc., United States District Court for the District of Kansas, No. 13-cv-02261-EFM-DJW. Lead Plaintiff and Liaison Counsel motion pending.

In re Sprint Nextel Shareholder Litigation, Consolidated Case No. 12CV08366, Johnson County District Court - Steve was appointed by the Court as Liaison Counsel for the Co-Lead Plaintiffs in this case brought on behalf of Sprint Nextel Shareholders alleging that the Softbank takeover of Sprint undervalues the deal resulting in a loss to Sprint Nextel Shareholders.  The case is currently being litigated in Kansas in the Johnson County District Court.

Propane Explosion – Kansas - $1.2 Million Policy Limits Settlement

Martin v. Confidential Propane Company and landlord, Labette County, Kansas.  Steve represented a young man seriously injured in a propane explosion in rural Kansas.  After several firms told the client he did not have a case against the propane supplier, we took the case, hired 5 experts, conducted discovery and obtained a policy limits settlement against both defendants.  Our propane expert identified deficiencies in corroded system piping, non-compliance with the National Fuel Gas Code §54, the LP-Gas Safety Handbook (NPGA), and the National Propane Gas Association Certified Employee Training standards.  Additional discovery uncovered the supplier’s continued refill of the propane system that contained an unsafe and recalled regulator.

Wrongful Death Lawsuit - Missouri - $1.6 Million Policy Limits Settlement. Steve represented the family of a Missouri resident who was struck and killed while walking across the crosswalk at 31st and Main in Kansas City, Missouri.  Evidence obtained in the case showed that the driver was distracted and had her attention diverted from operating her vehicle because she was using her phone to text. Cell phone records showed that the driver received and sent a text shortly before the collision. Video evidence obtained from nearby KC ATA buses showed the driver accelerated through the crosswalk, never braking before striking the pedestrian.  The case was filed in Jackson County, Missouri.

Honors & Awards

Honors & Recognitions

President, Kansas Bar Association, 2016

Best Lawyers® in America - Appellate Practice-2015, 2017-2019; Appellate Practice and Commercial Litigation-2016, 2017-2019

Missouri & Kansas Super Lawyers, 2012-2019

Best of the Bar - Kansas City Business Journal

Adjunct Professor, Antitrust Law, University of Kansas


University of Kansas School of Law

Honors: Order of the Coif
Honors: Rice Scholar
Law Clerk, The Honorable Deanell R. Tacha, U.S. Court of Appeals, 10th Circuit

Carleton College

B.A. Economics


  • Kansas
  • Missouri
  • U.S. District Court, District of Kansas
  • U.S. District Court, Western District of Missouri
  • U.S. Court of Appeals, 10th Circuit
  • U.S. Supreme Court
Jump to Page