Kaplan Fox Announces $142.5 Million Settlements with Atkore, Westlake and Opis. USDC – Northern District of Illinois May 14, 2026 Principal Contacts Robert N. KaplanRKaplan@kaplanfox.comElana KatcherEKatcher@kaplanfox.comMatthew P. McCahillMMccahill@kaplanfox.com Kaplan Fox Announces $142.5 Million Settlements with Atkore, Westlake and Opis in In re: PVC Pipe Antitrust Litigation. Kaplan Fox & Kilsheimer LLP (www.kaplanfox.com) announces a $72.5 Million settlement with Defendants Atkore Inc., Atkore International, Inc., Atkore Plastic Pipe Corp., Atkore RMCP, Inc., and Allied Tube & Conduit Corporation (“Atkore”) in In re: PVC Pipe Antitrust Litigation, 1:24-cv-07639, which is currently pending in the United States District Court for the Northern District of Illinois. The Court has granted preliminary approval of Atkore settlement and a final approval hearing is scheduled for October 1, 2026. Kaplan Fox also announces a $67 million settlement with Defendants Westlake Corporation and Westlake Pipe & Fittings Corporation (“Westlake”). The Court has granted preliminary approval of the Westlake settlement and the final approval hearing is also scheduled on October 1, 2026 In addition, Kaplan Fox also announces a $3 million settlement with Defendant Oil Price Information Service, LLC (“OPIS”). The Court has granted preliminary approval of the OPIS settlement and a final approval hearing is scheduled for June 3, 2026. This litigation is still pending against eight defendant groups. Kaplan Fox serves as lead counsel representing a class of direct purchasers who allege that Defendants conspired to fix, raise, maintain, and stabilize the price of PVC Pipe and/or Fittings starting as early as January 1, 2020 and continuing until March 31, 2026, and that DPP Settlement Class Members paid higher prices for PVC Pipe and/or Fittings as a result. You may contact the following Kaplan Fox attorney about the case and the settlements at (212) 687-1980:Robert N. Kaplan: rkaplan@kaplanfox.com The submission of this form does not create an attorney-client relationship, nor an obligation on the part of Kaplan Fox to retain you as a client. Any information you submit will be maintained as confidential. If Kaplan Fox, in its sole discretion, believes that you might be an appropriate client, Kaplan Fox will contact you to discuss the matter and whether to establish an attorney client relationship. By signing this form you are authorizing us to contact you regarding this case and/or future cases. Connect with Kaplan Fox. Receive a complimentary case review now. Contact Us Hub Group, Inc. Investor Lawsuit: Learn More See the Case First Solar, Inc. Class Action Alert: Learn More Now See the Case Futu Holdings Limited Class Action Alert: Learn More Now See the Case ZoomInfo Technologies, Inc. Class Action Alert: Learn More Now See the Case Cerebras Systems Inc. Investigation: Learn More Now See the Case BitGo Holdings, Inc. Class Action Alert: Learn More Now See the Case Erasca, Inc. Class Action Alert: Learn More Now See the Case The Ensign Group, Inc. Class Action Alert: Learn More Now See the Case Medline Inc. Class Action Alert: Learn More Now See the Case Verra Mobility Corporation Class Action Alert: Learn More Now See the Case PicS N.V. Class Action Alert: Learn More Now See the Case Fulcrum Therapeutics, Inc. Investigation: Learn More Now See the Case
